OMRON NT31, C programmable terminal Setup Manual
Below you will find brief information for programmable terminal NT31, programmable terminal NT31C. The NT31/NT31C is a sophisticated display unit (Programmable Terminal) which automatically displays information and can also be used for operations when necessary. The NT31/NT31C can display real-time information about the system and equipment operating status, etc. Its power of expression is enhanced by graphs and other visuals, making the displays easy to understand. The NT31/NT31C warns of system or equipment failures and prompts the appropriate remedial action. Setting touch switches on the NT31/NT31C allows workers to use the NT31/NT31C as an operating panel; the results of the operations are transmitted to the host.
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Cat. No. V062-E1-04
NT31 and NT31C
Programmable Terminals
Setup Manual
NT31 and NT31C
Programmable Terminals
Setup Manual
Revised September 2007
POWER
RUN
iv
Notice:
OMRON products are manufactured for use according to proper procedures by a qualified operator and only for the purposes described in this manual.
The following conventions are used to indicate and classify precautions in this manual. Always heed the information provided with them. Failure to heed precautions can result in injury to people or damage to property.
!DANGER
Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. Additionally, there may be severe property damage.
!WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. Additionally, there may be severe property damage.
!Caution
Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury, or property damage.
OMRON Product References
All OMRON products are capitalized in this manual. The word “Unit” is also capitalized when it refers to an OMRON product, regardless of whether or not it appears in the proper name of the product.
The abbreviation “Ch,” which appears in some displays and on some OMRON products, often means
“word” and is abbreviated “Wd” in documentation in this sense.
The abbreviation “PLC” means Programmable Controller. “PC” is used, however, in some Programming Device displays to mean Programmable Controller.
Visual Aids
The following headings appear in the left column of the manual to help you locate different types of information.
Note Indicates information of particular interest for efficient and convenient operation of the product.
1,2,3...
1.
Indicates lists of one sort or another, such as procedures, checklists, etc.
OMRON, 2000
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, or by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission of
OMRON.
No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is constantly striving to improve its high-quality products, the information contained in this manual is subject to change without notice. Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained in this publication.
v
vi
TABLE OF CONTENTS
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
xv
SECTION 1
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
SECTION 2
Preparing for Connection . . . . . . . . . . . . . . . . . . . . . . . . . . .
23
SECTION 3
Hardware Settings and Connections. . . . . . . . . . . . . . . . . . .
29
SECTION 4
Connecting to the Host from the RS-232C Port. . . . . . . . . .
45
SECTION 5
Connecting to the Host from the RS-422A/485 Port . . . . . .
79
SECTION 6
System Menu Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
vii
viii
TABLE OF CONTENTS
6-7 Setting Conditions for Communications with Host by Using Memory Switches . . . . . . . . .
SECTION 7
Troubleshooting and Maintenance . . . . . . . . . . . . . . . . . . . . 231
Appendices
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
About this Manual:
This manual describes connecting the NT-series NT31 and NT31C Programmable Terminals to a PLC
(Programmable Controller) or other host and peripheral devices and the settings required for communications and applications. It includes the sections described below.
Please read this manual carefully and be sure you understand the information provided before attempting to install and operate the Programmable Terminal.
Section 1 provides fundamental information about the functions and features of the PTs, types of connection, communications methods, etc. This information will enable you to understand the applications of the PTs.
Section 2 describes the connection methods that are possible with the PTs, and the functions of the parts of PTs, as the required knowledge before connecting to the host and to the peripheral devices.
Section 3 describes the settings of the PTs and methods for connection to peripheral devices.
Section 4 describes the method for connecting to the host using the RS-232C port of the PT.
Section 5 describes the method for connecting to the host using the RS-422A/485 port of the PT.
Section 6 describes the operation of the System Menu, focusing on the procedure to start the PT.
Functions that are convenient when using the PT and those that are useful for system maintenance are also explained here.
Section 7 describes the action to take when errors occur in the PT, and how to carry out maintenance and inspection to prevent the occurrence of errors.
The Appendices provide specifications, dimensions, procedures for using an RS-232C/RS-422A
Adapter, procedures for transporting and storing the PT, information on cable preparation, information on the relationship between the system program and hardware, and product lists.
!WARNING
Failure to read and understand the information provided in this manual may result in personal injury or death, damage to the product, or product failure. Please read each section in its entirety and be sure you understand the information provided in the section and related sections before attempting any of the procedures or operations given.
ix
x
Related Manuals:
Related manuals are listed below.
The @ symbol at the end of the catalog number is the revision number.
Connecting and Setting Up the Programmable Terminal
• NT31 and NT31C PT Setup Manual (V062-E1@, this manual)
This manual describes connecting the Programmable Terminals to a host and peripheral devices and settings required for communications and applications.
The functions and actual operating methods for the NT31 and NT31C PTs are provided in the Refer-
ence Manual (V064-E1@).
Programmable Terminal Functions and Operation
• NT31/31C/631/631C PT Reference Manual (V064-E1-
@)
This manual is used for any of the following PTs: NT31, NT31C, NT631, and NT631C. It describes screen configurations, part functions, host control methods, and other application information.
PT connection and setup procedures are described in the NT31 and NT31C PT Setup Manual (V062-
E1-
@).
Creating and Transferring Screen Data, and Installing the
System Program
• NT-series Support Tool for Windows Ver. 4.
@ Operation Manual (V061-E1-@)
The screens displayed on the NT31 and NT31C PTs are created with the Support Tool and transferred to the PT. This manual describes how to create and transfer screen data. It also describes how to download a system program to a PT using the System Installer.
The NT-series Support Tool for Windows is normally referred to as merely the Support Tool.
Connecting to Controllers Not Made by OMRON
• PLC Connection Manual (V042-E1@)
The NT31 and NT31C PTs can be connected to controllers in the following series: Mitsubishi A Series and FX Series. This manual describes the connection and setup methods for these controllers.
The NT-series Support Tool for Windows Version 4.
@ is required to connect the NT31 and NT31C PTs to these controllers.
• NT31/NT631 Multi Vendor Connection Manual (V060-E1@)
The NT31 and NT31C PTs can be connected to controllers in the following series: Allen-Bradley SLC
500 Series, GE Fanuc 90-20 and 90-30 Series, and Siemens S7-300 and S7-400 Series. This manual describes the connection and setup methods for these controllers.
Read and Understand this Manual
Please read and understand this manual before using the product. Please consult your OMRON representative if you have any questions or comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-
INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE
PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR
INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS
REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS
WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO
CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
xi
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product, machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:
• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this manual.
• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations.
• Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR
PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO
ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
xii
Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other reasons.
It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
PERFORMANCE DATA
Performance data given in this manual is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of OMRON's test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and
Limitations of Liability.
ERRORS AND OMISSIONS
The information in this manual has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical, or proofreading errors, or omissions.
xiii
xiv
PRECAUTIONS
This section provides general precautions for using the Programmable Terminal.
The information contained in this section is important for the safe and reliable application of the Programmable
Terminal. You must read this section and understand the information contained before attempting to set up or operate a Programmable Terminal.
xv
Intended Audience
1
2
1
Intended Audience
This manual is intended for the following personnel, who must also have knowledge of electrical systems (an electrical engineer or the equivalent).
• Personnel in charge of introducing FA systems into production facilities.
• Personnel in charge of designing FA systems.
• Personnel in charge of installing and connecting FA systems.
• Personnel in charge of managing FA systems and facilities.
General Precautions
The user must operate the product according to the performance specifications described in the operation manuals.
Before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems, machines and equipment that may have a serious influence on lives and property if used improperly, consult your OMRON representative.
Make sure that the ratings and performance characteristics of the product are sufficient for the systems, machines, and equipment, and be sure to provide the systems, machines, and equipment with double safety mechanisms.
This manual provides information for using the Programmable Terminal. Be sure to read this manual before attempting to use the software and keep this manual close at hand for reference during operation.
!WARNING
It is extremely important that Programmable Terminals and related devices be used for the specified purpose and under the specified conditions, especially in applications that can directly or indirectly affect human life. You must consult with your OMRON representative before applying Programmable Terminals to the above-mentioned applications.
!WARNING
Do not use input functions such as PT touch switches for applications where danger to human life or serious damage is possible, or for emergency switch applications.
3 Safety Precautions
Read these safety precautions carefully and make sure you understand them before using the Programmable Terminal so that you can use it safely and correctly.
Safety Conventions and Their Meanings
This operation manual uses the following conventions and symbols to indicate cautions, warnings, and dangers in order to ensure safe use of the NT31/31C.
The cautions, warnings, and dangers shown here contain important information related to safety. The instructions in these cautions, warnings, and dangers must be observed.
!WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
xvi
Safety Precautions
3
!Caution Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury, or property damage.
WARNING
Do not attempt to take the unit apart and do not touch any internal parts while the power is being supplied. Doing either of these may result in electrical shock.
WARNING
Switch OFF the NT31/NT31C power before replacing the backlight. Otherwise you could sustain an electric shock.
CAUTION
Do not touch the backlight immediately after switching OFF the power supply.
Otherwise burn injuries may result due to the high temperatures.
xvii
Safety Precautions
3 xviii
SECTION 1
General
This section provides fundamental information about the functions and features of the PTs, types of connection, communications methods, etc. This information will enable you to understand the applications of the PTs.
1-1 Role and Operation of the NT31/NT31C . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1-1 Operation of an NT31/NT31C at an FA Production Site . . . . . . . . .
1-1-2 Operations of the NT31/NT31C . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2-2 Comparison between NT31 and NT31C . . . . . . . . . . . . . . . . . . . . .
1-2-3 Comparison between NT30/NT30C and NT31/NT31C . . . . . . . . .
1-2-4 Principal Functions of NT31/NT31C. . . . . . . . . . . . . . . . . . . . . . . .
1-3-1 Peripheral Devices That Can Be Connected . . . . . . . . . . . . . . . . . .
1-3-2 Connecting to the Host. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4-1 Direct Connection Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4-4 Connecting to other Companies’ PLCs . . . . . . . . . . . . . . . . . . . . . .
1-5 Communications Using Memory Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-5-2 Comparison between Direct Connection and Memory Link . . . . . .
1-5-3 Memory Link Online Transfer Function . . . . . . . . . . . . . . . . . . . . .
1
2
Role and Operation of the NT31/NT31C
Section 1-1
1-1 Role and Operation of the NT31/NT31C
The NT31/NT31C is a sophisticated display unit (Programmable Terminal) which automatically displays information and can also be used for operations when necessary. The following gives a general description of the role and operation of the NT31/NT31C for those using a programmable terminal (PT) for the first time.
1-1-1 Operation of an NT31/NT31C at an FA Production Site
Production Line Status
Monitoring
The NT31/NT31C displays real-time information about the system and equipment operating status, etc. Its power of expression is enhanced by graphs and other visuals, making the displays easy to understand.
Production Control (3)
Product
Today's target
Current production
Number defective
Number repaired
% achieved
560
305
2
7
441
275
8
15
Directions to Workers on the Shop Floor
The NT31/NT31C warns of system or equipment failures and prompts the appropriate remedial action.
Alarm
Assembly line B
Positioning pin is defective. Line stopped.
Check the following.
1. Defective pin L3
2. Position of dog M2
3. Mounting of photosensor P5
Panel Switch Functions
Setting touch switches on the NT31/NT31C allows workers to use the NT31/
NT31C as an operating panel; the results of the operations are transmitted to the host.
Electroplating control
Transport
Electr. head
Wash.
head
Corr. prv. head
Clamp
Unclamp
Int. stop
Adv.
Electrolyte
Rev.
Wash
Corr. prv.fluid
Role and Operation of the NT31/NT31C
Section 1-1
1-1-2 Operations of the NT31/NT31C
Displays Screens
The information to be displayed (screen data) can be created on a computer using the Support Tool and stored in the NT31/NT31C. The screen data can be displayed on the NT31/NT31C in response to instructions from the host or touch switch operation.
Host
The screen data designated by instructions from the host or touch switch operation is displayed.
Receives Data from a Host
The NT31/NT31C can be connected to the host by a host link or NT link and receive necessary data from the host.
Host link, NT link
Host
Sends Data to a Host
Data input using the touch panel (switch ON/OFF statuses, numeric values, character strings) can be transmitted to the host.
Host
Touch panel
ON/OFF information, numeric data, etc.
Screen Data
The screen data to be displayed on the NT31/NT31C can be created on a personal computer using the Support Tool. Connect the NT31/NT31C to the personal computer with an RS-232C cable and transmit the screen data to the
NT31/NT31C.
RS-232C
Create screen data.
Personal computer
(Support Tool)
Screen data
When the host is connected at serial port A, the personal computer is only connected when communicating screen data between the NT31/NT31C and Support Tool.
3
Functions of the NT31/NT31C
Section 1-2
1-2 Functions of the NT31/NT31C
The NT31/NT31C has the following features.
1-2-1 Features
Downsized Body
Construction Best Suited to the FA Environment
• Slim body (50 mm or less in the panel*).
• The communications cable connectors are housed in the unit so that they do not protrude from the unit.
*When mounted in a panel of the recommended thickness (page 30).
• The panel is an STN monochrome LCD type with backlight for the NT31 and an STN color LCD type with backlight for the NT31C.
• The backlight unit and battery can be replaced at the operation site.
• Protection equivalent to oil-proof IP65*, and waterproof structure equivalent to the NEMA4 standard.
*The panel may not be usable in environments where it is exposed to oil for long periods.
320 dots
POWER
RUN
240 dots
Wide angle of visibility
Touch Switch Operation
Compatibility with Other PTs
Contrast and brightness are adjustable by touch switch operations.
• There is upward compatibility between the NT31/NT31C and the following models for screen data and user programs: NT11S, NT20S, NT30,
NT30C, NT600S, NT610G, NT610C, NT620S, NT620C, NT625C, NT631,
NT631. (After being read to the Support Tool, screens must be modified in accordance with the screen size. Depending on the function used, partial modification of programs may also be necessary. For details on the compatibility of screen data, refer to the NT31/NT31C/NT631/NT631C Pro-
grammable Terminal Reference Manual and the NT-series Support Tool
Operation Manual.
• The dimensions of the panel cut-out to accommodate the NT31/NT31C are the same as for the NT30/NT30C.
Two Ports Featured as Standard:
Port A for Common Use by Support Tool/Host and Port B for Exclusive Use by the Host
• Communications with the host are possible via another port while connected to the Support Tool.
• Reading bar code data from a bar code reader is possible via another port while communicating with the host.
4
Functions of the NT31/NT31C
Section 1-2
Rapid System Program & Screen Data Changes Possible Using a Memory Unit
• Installing a Memory Unit (model NT-MF261) on the rear of the NT31/
NT31C makes it easy to write screen data into the NT31/NT31C on site.
This enables a rapid response to setup changes.
• NT31/NT31C can store a system program into a Memory Unit. This enables the system to handle more flexible setups.
Screen Data Check
Function
Screen data can be checked simply by operations at the NT31/NT31C system menu, without connecting up to the Support Tool.
Increased Screen Data
Capacity
Large Increase in
Maximum Number of
Registered Elements
The data capacity of 1 MB is twice that of the NT30/NT30C, enabling storage of a larger quantity of screen data.
The number of elements that can be registered on one screen has been considerably increased, making it possible to create more expressive screens.
For details, refer to Display Restrictions in Appendix A Specifications of the
NT31/NT31C/NT631/NT631C Programmable Terminal Reference Manual.
Binary Data can be Read to/Written from the Host
Character Display Using
High Definition Fonts
It is now possible to write binary data stored in words at the host directly to the
NT31/NT31C. This makes data conversion by a program at the host unnecessary, reducing the load on the host.
Any quadrupled characters are displayed with a 32 dot high-definition font.
Simple Version Upgrades
By using the system installer supplied with the Support Tool (Type NT-
ZJCAT1-EV4), the system program at the NT31/NT31C can be changed easily from a personal computer.
The NT31/NT31C meets UL/CSA standards and EC directives.
Complies with
International Standards
Compatible with Other
Vendors’ Devices
Multiple Windows
High-speed 1:N NT Link
Additional Mathematical
Functions
Device Monitor Function
Interlock Function
Improved Lamp/Touch
Switch Labels
Compatible with Sequencers in the following series: Mitsubishi A-series (Calculator Link) and FX-series (Programming Console), Allen-Bradley SLC 500
Series, GE Fanuc 90-20 and 90-30 Series, and Siemens S7-300 and S7-400
Series. Specialized system programs can be installed that allow the NT31/
NT31C to be controlled from other companies’ Sequencers.
Up to 3 windows can be displayed simultaneously in the normal screen. A 9word window control area has been allocated to the host; the contents of these 9 words can be changed from the Host to open, close, and move windows.
The V2 versions are compatible with the high-speed 1:N NT Link as well as the earlier standard 1:N NT Link.
Operands (values referenced by formula) can be registered to allow the PT to perform calculations automatically and write the results of those calculations to numeral memory tables or words in the host.
The new device monitor function can be used to change the PLC’s operating mode or display/change values in the PLC’s memory areas. The present values (PVs) of several words can be listed with the device monitor.
PT operations and inputs can be disabled from the PLC if interlock bits have been allocated in the PLC for the corresponding PT touch switches, numeric inputs, or string inputs.
The following displays can be performed with lamp or touch switch labels:
• Display several lines of labels.
• Switch the display between different labels when OFF and ON.
5
Functions of the NT31/NT31C
Section 1-2
NT30/NT30C and NT620S/
NT620C/NT625C
Emulation
Additional CS/CJ-series
Data Areas Accessible
Recipe Function
Adjusting Contrast and
Brightness During PT
Operation
• Display the numeral memory table contents as labels.
• Display the string memory table contents as labels.
The word configuration of the PT status control area and PT status notify area can be set to emulate those of the NT30/NT30C or NT620S/NT620C/
NT625C; this mode is called NT30/620 compatible mode.
When the PT is operating in NT30/620 compatible mode, it will be equivalent to an NT30/NT30C or NT620S/NT620C/NT625C in the functions listed below.
The PT retains full V2 functionality in all functions other than the ones listed below. Refer to Appendix C in the NT31/NT31C/NT631/NT631C Programma-
ble Terminal Reference Manual for more details.
• Word configuration and functions of the PT status control area and PT status notify area
• Image/library codes
• Insertion of image/library data into character strings
Data areas in CS/CJ-series PLCs that were previously inaccessible can be accessed. The data areas listed below can be accessed (read/written).
All banks in the EM area, timer completion flags (TU), counter completion flags (CU), Work areas (WR), Task flags (TK), and the HR area.
You can set the data (numeric values) for multiple words in record units using the tabular elements on the PT screen, and write these settings in a single operation to words on the host (i.e., PLC or PT memory) using a touch switch operation on the PT Unit. Also, multiple words of numeric data can be read from the host in one operation. In this way, groups of parameter settings can be edited at the PT Unit, and written to or read from the host.
You can display the brightness and contrast adjustment screen using either the touch switch or commands from the host, even while the PT is in operation.
1-2-2 Comparison between NT31 and NT31C
Two NT31 models — the NT31, which is capable of versatile graphic displays, and the NT31C, which is also capable of color display — are available. The differences between the NT31 and NT31C are tabled below:
Function
Type
NT31
NT31-ST123-EV3 (Beige)
NT31-ST123B-EV3 (Black)
Display panel STN monochrome LCD display type (with white backlight)
NT31C
NT31C-ST143-EV3 (Beige)
NT31C-ST143B-EV3 (Black)
STN color LCD type
(with white backlight)
Beige and black are the front panel colors of each NT31/NT31C types.
6
Functions of the NT31/NT31C
Section 1-2
1-2-3 Comparison between NT30/NT30C and NT31/NT31C
Item
Support Tool used
NT30/NT30C
NT-ZJCAT1-EV4 or NT-ZA3AT-
EV2
On rear of PT
NT-ZJCAT1-EV4
NT31/NT31C
DIP switches
Use of B7A Unit
Use of Memory Unit
RS-232C interface
RS-422A/485 interface
Backlight color
Replacement backlight
Possible
Not possible
Connector (9-pin) also used as port for screen data transfer.
Terminal block
White/red (selectable)
NT30-CFL01/NT30C-CFL01
None (software settings)
Not possible
Possible
• Serial port A connector (also used for screen data transfer, 9-pin)
• Serial port B connector (for host communications only, 25-pin)
Serial port B (25-pin D-SUB connector)
White only
NT31C-CFL01 (Same for both the NT31-ST121 @-EV2 and NT31C-
ST141 @-EV2).
The backlight cannot be replaced by the user for the NT31-ST122 @-EV2,
NT31C-ST142 @-EV2, NT31-ST123@-EV3, and NT31C-ST143@-EV3.)
The system installer and system program data are supplied with the Support Tool.
NT31/NT31C system program data
NT-ZS3AT-EV1
(including system installer)
High-speed 1:N NT Link
Memory
Link
System program
Screen data
Not possible
Exclusive use by Memory Link
Possible
Same as OMRON connection
LCD contrast adjustment
Shared with OMRON connection Exclusive use by Memory Link
By a control on the rear of the PT By touch panel operation
Backlight brightness adjustment Not possible By touch panel operation
Maximum of 2000 Maximum of 3999 Number of user-registered screens
Screen data capacity
*1
(User program memory)
Numeral string data
512 KB
Maximum of 1000
1 MB
Maximum of 2000
Character string data
Bit data
Mathematical tables
Image data
Library data
Method for storing numeric values
(numeral memory data and PT status control area)
PT status control area size
Maximum of 1000
256
None
4 words
Maximum of 2000
Maximum of 1000
256 max.
Calculations can be executed automatically in the PT.
Maximum of 224
Maximum of 896
Fixed as BCD (binary coded decimal)
Maximum of 4095
*2
Maximum of 12288
*2
Selectable from BCD (binary coded decimal) or binary
PT status notify area size
Window control area size
Registering continuous screen
Lamp/Touch switch labels
Interlock function
Device monitor function
Recipe function
Accessible CS/CJ-series PLC data areas
3 words
None
Possible
Fixed display (1 line only)
None
Not possible
None
---
5 words (partial change of contents)*
2
2 words (partial change of contents)*
2
9 CH
Not possible (Use a screen switchover as a substitute.)
• Multiple lines can be displayed
• ON/OFF switching is possible
• Numeral display is possible
• Character string display is possible
Operations can be disabled from the PLC by allocating interlock bits to the corresponding touch switch, numeral input, or character string input.
Possible
Possible
The data areas listed below can be accessed in addition to the data areas accessible with the NT30/NT30C.
• EM banks (EM_0 to EM_C)
• Timer completion flags (TU)
• Counter completion flags (CU)
• Work areas (WR)
• Task flags (TK)
• HR area
*1
This is the capacity of the flash memory that stores screen data.
*2
The values are the same as the NT30/NT30C when the PT is in NT30/620 compatible mode.
For differences in programming, refer to Appendix B in the NT31/NT31C/NT631/NT631C Programmable Termi-
nal Reference Manual.
7
Functions of the NT31/NT31C
1-2-4 Principal Functions of NT31/NT31C
The following are the principal functions of the NT31/NT31C.
Section 1-2
Functions relating to data display
Character display
Characters of various sizes can be displayed. Characters can be flashed and displayed in reverse video. High grade fonts are available for the characters with their size enlarged.
Graphic display
Polylines, rectangles, polygons, circles, circular arcs, and sector shapes can be displayed. They can also be tiled with various patterns, flashed, or displayed in reverse video.
Memory data display
The contents of character string memory tables and numeral memory tables can be displayed.
The contents of memory tables can be changed from the host.
Graph display
Not only bar graphs but also broken line graphs, trend graphs, and analogue meter graphs can be displayed using numeral memory tables
Lamp display
Lamps can be turned on and flashed under the control of the host. It is also possible to display different graphics in the ON and OFF states.
Alarm list/history display
Warning messages are automatically displayed in a list in response to the state of a host bit. The time and the number of times of the messages appeared can also be displayed.
Functions relating to data output
Buzzer
A built-in buzzer can be sounded.
Screen printing
A hard copy of the currently displayed screen can be printed at the printer connected to the NT31/NT31C.
8
Functions of the NT31/NT31C
Section 1-2
Functions relating to data input
Input by touch switches
Data can be input by simply touching touch switches displayed on the screen.
The possible functions of touch switches include sending data to the host and changing the screen display.
Inputs can be enabled and disabled from the host when interlock bits have been allocated.
Pop-up window function
A window overlaying the currently displayed screen can be alternately opened and closed by pressing a touch switch.
In addition to fixed character and graphic displays, control keys and character keys created as touch switches can also be set inside the window. A maximum of three windows can be displayed simultaneously. Since the window need only be opened when input is required, the screen can be used efficiently.
Numeral/character string setting function
Numeric keys and character keys can be assigned to touch switches so that numeric values and character strings can be input at the operation site.
The input data is written to numeral/character string memory tables and also sent to the host. It is also possible to disable input by control from the host.
Recipe function
Several words of numeric data can be edited at the PT Unit, and written to or read from the host in one operation.
Input from a bar code reader
Data read with a bar code reader can be input to a character string input field.
Functions relating to communications
Communications with the host
The NT31/NT31C can communicate with the host by four methods: host link, 1:1 NT Link, 1:N NT link (standard or high-speed), and Memory link. Data can be read from the host, and data input by means of touch switches and numeral/character string settings can be sent to the host. It is also possible to connect with other model PLCs.
Functions relating to the system
System menu
System settings and maintenance can be performed by selecting from system menus displayed on the screen.
Creation of screen data
Screen data created using the Support Tool at a personal computer can be transferred and stored in the built-in screen data memory.
Resume function
The status and memory table contents of the NT31/NT31C immediately before its operation is stopped can be stored while operation is stopped, or while the power is off, and then displayed on the screen again when operation is restarted.
Screen saver function
This function serves to extend the service life of the backlight and prevent the formation of an afterimage on the screen.
Clock function
The time can be displayed in accordance with the internal clock data.
Programming Console function
The PT can perform the same operations as a C200H-PR027-E Programming Console when the PT is connected to a CPM1,
CPM2A, CPM2C, CQM1, CQM1H, C200HX/HG/HE-(Z)E, or SRM1 PLC in a 1:1 NT Link connection, or a CS/CJ-series PLC in a
1:N NT Link connection.
Device Monitor function
When the PT is connected to a PLC in a 1:1 NT Link or 1:N NT Link, the PT can be used for operations such as changing the
PLC's operating mode, displaying or changing the PVs of words, or reading the error log.
System program install function
The system program of the NT31/NT31C can be changed by using the system installer supplied with the Support Tool
(NT-ZJ3AT1/ZJCAT-EV2). It can also be installed by using a memory unit (NT-MF261).
Screen display history function/alarm history function
The screen display history function records the time at which specific screens are displayed and the number of times they are displayed. The alarm history function records the time at which specific bits at the host are turned ON and the number of times they are turned ON.
Trend graph logging function and background function
Changes in the contents of numeral memory tables displayed in trend graphs can be recorded (logging function). Also, the record can be maintained even when the trend graph is not displayed (background function).
Mathematical function
This function allows calculations to be executed continuously during PT operation when mathematical table has been set in screen data. Arithmetic operations, bit operations, logic operations, and comparison operations can be performed. Operations with up to 5 terms are possible.
9
Functions of the NT31/NT31C
1-2-5 Displays
Section 1-2
The NT31/NT31C can display various kinds of elements such as characters, numeric values, graphs, lamps, and touch switches, on a screen. The screen data displayed by the NT31/NT31C are created by using the Support Tool at a personal computer.
Characters
(fixed display)
Line 1 Status
Stop Restart
Touch switches
Bar graph
Machine name: NT31C-ST143
Production qty.: 137 units
0% 50%
25%
100%
Characters
(character string display)
Numeric values
(numeral display)
Stage 1
Check 1
Stage 2
Check 2 Lamps
Fixed Displays
Characters and various graphics (circles, circular arcs, sectors, polylines, polygons and rectangles) whose display does not have to be changed, and mark data, image data, and library data that has already been registered, can be written directly onto the screen.
Circle Arc Sector
Polyline Polygon Rectangle
* A continuous straight line with up to 256 points can be drawn.
* A polygon with up to 255 vertices can be drawn.
Marks are graphics comprising 16 by 16 dots that can be used as characters.
They can be used as custom characters within character strings.
Image data are graphics comprising any required area of dots. They are registered in advance and as many as required can be displayed at any position on the screen.
Windows bit map (BMP) data can be used for images.
There is a two-color mode, in which the display color and background color of the image are specified when it is registered in a screen, and an eight-color mode in which colors are assigned to the image in advance.
Since image data is composed of dots, it requires a large data size but offers great powers of expression.
Library data are combinations of fixed display graphics registered as a single graphic. They are registered in advance and as many as required can be displayed at any position on the screen.
Since it is generated by combining graphics, library data has a small data size.
10
Functions of the NT31/NT31C
Mark Image data Library data
Lamps
Section 1-2
These are graphics whose display status changes in accordance with the states of bits at the host. Squares, circles, sectors and polygons can be used for lamps (normal (standard) lamps). In accordance with the status of the host bit, they can be lit (displayed in reverse video) or flashed (repeated alternation between normal and reverse video display states).
Lamps can also display different image/library data for the ON and OFF states of the host bit (such lamps are called image/library lamps).
There are four standard lamp labels: fixed display character strings, ON/OFF switching character strings, numeral displays, and character string displays.
When fixed display character strings or ON/OFF switching character strings are used, several lines of labels can be displayed.
Normal (Standard) Lamps
ON
Unlit state
Image Library Lamps
ON
Host
Lit state
Touch Switches
Unlit state
ON
Host
Lit state
These switches can be set at any location on the screen. Pressing a touch switch on the screen where a touch switch has been set can have the following effects:
• Notification to a host bit (input notification function)
• Changing the displayed screen (screen switching function)
• Input of a numeric value or character string (input key function)
• Copying of a numeric value or character string (copy key function)
• Shifting to another numeric value or character string input field (cursor moving key function)
• Obtaining a hard copy of the screen (screen print function)
• Opening / Closing a window
• Moving a window
Touch switches can be made to light or flash in accordance with the status of a host bit in the same way as lamps.
11
Functions of the NT31/NT31C
Section 1-2
The following 8 types of display graphic can be used for touch switches: Standard, shadow, 3-dimension, no display frame, rectangle, circle, polygon, sector
When rectangle, circle, polygon, or sector is selected as the shape, the area within which pressing of the touch switch is sensed (the touch switch area) can be set independently of the position where the display graphic is set.
Touch switch area
When this position is pressed...
Shown in reverse video
Display frame
Numeral Displays
String Displays
Numeral Inputs
String Inputs
Function executed
There are four touch-switch labels: fixed display character strings, ON/OFF switching character strings, numeral displays, and character string displays.
When fixed display character strings or ON/OFF switching character strings are used, several lines of labels can be displayed.
Numeric values stored in the numeral memory tables are displayed. The displayed numerals can be changed by changing the data stored in the numeral memory tables.
Hexadecimal values can also be displayed.
When decimal values are displayed, the number of digits for the integral part and fractional part of displayed values can be specified in advance.
Character strings stored in the character string memory tables are displayed.
The displayed character strings can be changed by changing the data stored in the character string memory tables.
Numeric values can be input at the PT by using touch switches. The input numeric values can also be stored in a numeral memory table and notification sent to the host.
Numeral inputs can be enabled and disabled from the host when an interlock bit has been allocated.
12345678
Input
7 8 9
4 5 6
1 2 3
0 .
±
Window
Character strings can be input at the PT by using touch switches, bar code readers, etc. The input character strings can also be stored in a character string memory table and notification sent to the host.
String inputs can be enabled and disabled from the host when an interlock bit has been allocated.
Character string setting input field
Display
NT31C
Input
NT31C NT31
NT631C
12
Functions of the NT31/NT31C
Thumbwheel Switches
Section 1-2
Numeric values can be input by incrementing or decrementing each digit with the corresponding touch switch (+, –). The input numeric values can also be stored in a numeral memory table and notification sent to the host.
Thumbwheel switch inputs can be enabled and disabled from the host when an interlock bit has been allocated.
Graphs
These are graphics whose display changes in accordance with the numeric values stored in numeral memory tables. There are the following four types.
Bar Graphs
Bar graphs display the present value in a numeral memory table converted to a percentage within the range –100% to +100% of a preset value.
60%
Analog Meters
Analogue meters display, using a quarter, half, or full circle shape, the present value in a numeral memory table converted to a percentage within the range –
100% to +100% of the preset value. Users can choose from moving pointer type and filling area type displays. Users can also add graduation to the graph.
60%
Broken Line Graphs
Broken line graphs display, in an easy-to-read form, a sequence of numeral memory table values converted to a percentage within the range –100% to
+100% of a preset value.
100%
0%
Example showing a series of 11 numeral memory table values
(with a check mark set for the display sign)
*
100%
Trend Graphs
Trend graphs display chronological changes in the value in a numeral memory table, converting the value to a percentage within the range –100% to +100% of a preset value. The trend graph shifts position with the passage of time.
Past data can also be recorded, and the numeral memory table can be read
(sampled) even while the trend graph is not being displayed.
The user can choose to stop sampling, restart sampling, or display past data, by pressing touch switches.
13
Functions of the NT31/NT31C
Section 1-2
Alarm List/History
Recipe
The alarm list/history function displays messages in list form, or graphics
(image/library data), in accordance with changes in bit memory table statuses.
For the alarm list, a series of bit memory tables are monitored, and messages
(contents of character string memory tables) set for bit memory tables that come ON are displayed.
For the alarm history, bit memory tables for which the history property is set are continually monitored, and the time when they come ON and number of times they come ON are recorded and displayed together with the message
(character string) set for the bit memory table.
The NT31/NT31C allows selection of the display order as the newest record first or the oldest record first by memory switch setting.
The alarm list function is used to determine which bits are ON at the present time. The alarm history function is used to determine the times at which alarms occurred in the past and how many times alarms have occurred.
Alarm List
Message (character string table No. 32) set for bit memory table No. 14
Character string table No. 32
Image/library data 113C
Character string table No. 50
Image/library data 1002
Character string table No. 32
Image/library data 113C
Character string table No. 54
Image/library data 1125
No.13
No.14
No.15
Bit
0
1
0
A000000
L001003
D010015
HOST
1(ON)
When the message displayed is pressed, the image/library data (113C) set for bit memory table No. 14 is displayed.
Alarm History
Message (character string table No. 13) set for bit memory table No. 24
Character string table No. 13
Character string table No. 12
Image/library data 102B
Character string table No. 11
Image/library data 005F
No. 22
Character string table No. 12
Image/library data 102A
No. 23
Character string table No. 13
Image/library data 102B
No. 24
Recorded data
Bit memory table No. 24
97/12/04 11:19:20
Bit memory table No. 23
97/12/04 11:25:12
When the upper message displayed is pressed, the image/library data (102B) set for bit memory table No. 13 is displayed.
You can set several words of numeric data at the PT in tabular format, and write it to the host. You can also read several words of numeric data from the host and display it on the PT screen.
14
System Configuration
Section 1-3
1-3 System Configuration
This section shows the configuration of a system that uses an NT31/NT31C.
For details on product models, refer to Appendix J Model List.
1-3-1 Peripheral Devices That Can Be Connected
The following peripheral devices can be connected to an NT31/NT31C.
Bar code reader
Bar codes can be read as character strings.
RS-232C cable
(max. 15 m) or
RS-422A/485 cable
(max. 500 m)
Host
Controls the NT31/NT31C as required while controlling machines and monitoring the production line.
Host Link: CS/CJ-series, C-series, and CVM1/CV-series PLCs, SRM1
Can be connected to CPU Units, Host Link Units, and SRM1. However, connection is not possible to some models of CPU Unit and SRM1.
NT Link: CS/CJ-series, C-series, and CVM1/CV-series PLCs, SRM1
Can be connected to CPU Units and SRM1. However, connection is not possible to some models.
Memory Link: Can be connected to a personal computer, FA computer, etc.
Other companies' PLCs can also be connected.
Printer
For printing out the currently displayed
NT31/NT31C screen.
Personal computer
Running Windows 95/98/NT Support Tool
Used to create screens for the
NT31/NT31C at the personal computer and transmit them to the NT31/NT31C, and to make
NT31/NT31C settings.
System installer
Used to change the system program of the NT31/NT31C.
Memory unit
Can store screen data and system program to be read out automatically at startup.
NT31/NT31C
Displays production line monitoring and instructions to the operation site, and notifies the host of the switch ON/OFF status and numeric value inputs.
When a 1:N NT Link is being used, up to 8 PTs can be connected to a single PLC.
Reference:
• Recommended printers (page 34)
It is also possible to use printers that can emulate an NEC PC-PR201H
(using the NEC PC-PR201PL control protocol), and printers that comply with one of the following EPSON control standards: ESC/P 24-J83C (color), or ESC/P 24-J82 (monochrome).
NT-MF261 (made by OMRON)
NT-series Support Tool Version 4.
@ for Windows (Made by OMRON)
• NT-ZJCAT1-EV4 (CD-ROM version)
System installer (made by OMRON)
The system installer is supplied as a standard accessory with the Support
Tool (NTZJCAT1-EV4).
The following optional devices are available. All of them can be used either with NT31 or NT31C.
15
Communications with the Host
Reflection-suppressing protective sheet NT30-KBA04
Chemical-resistant cover
Replacement battery
NT30-KBA01
3G2A9-BAT08
Section 1-4
1-3-2 Connecting to the Host
Reference:
The NT31/NT31C has the following two communications ports.
• Serial port A:
• D-SUB 9-pin connector
• For RS-232C use only (The Support Tool and bar code readers can be connected here.)
• Serial port B:
• D-SUB 25-pin connector
• For RS-232C or RS-422A/485 (Selectable by memory switch)
• (The Support Tool and bar code readers cannot be connected here.)
The host can be connected at either of these two ports.
The connection methods for each communications method at the PT and host sides are indicated below. Make the settings in accordance with the communications method that can be used with the PLC to be connected and the conditions at the operation site.
When using an RS-232C/422A Adapter (NT-AL001) with the host link or NT link
(1:1) communications method, RS-485 cannot be used. The connection must be made with RS-232C or RS-422A.
1-4 Communications with the Host
The NT31/NT31C is connected to the host by one of the following communications methods.
The following communications can be used to connect an OMRON PLC:
• Host link
• 1:1 NT Link
• 1:N NT Link (standard or high-speed)
The following communications can be used to connect another companies’
PLC or FA computer:
• Communications protocol supported by the other company’s PLC
• Memory link
In all of these communications methods that can be used with NT31/NT31C, data communications with host are by direct connection (Memory link is, however, a quasi-direct connection).
In the following, the host link and NT link that carry out the direct connection
will be discussed. Memory links will be explained in 1-5 Communications
1-4-1 Direct Connection Function
With the NT31/NT31C, the bits and words referring to data required for display, and those for storing input data, can be allocated to any part of the PLC memory area.
16
Communications with the Host
Section 1-4
The NT31/NT31C can directly write to and read from such allocated bits and words to change the display status of the elements on the PT screen, control the PT operating status, and notify the host of the status.
This function, which directly reads and writes the statuses of words and bits without using a PLC program is called the direct connection function.
The words and bits allocated for direct connection are called the allocated words and allocated bits.
The direct connection function allows the data to be displayed at the NT31/
NT31C to be read from the memory area in the PLC and written to memory tables in the NT31/NT31C. Also, the data input at the NT31/NT31C can be written to the memory area in the PLC. The NT31/NT31C screen can be changed in accordance with statuses in the PLC memory area, and the NT31/
NT31C’s status data can be written to the PLC’s memory area.
NT31/NT31C PLC
DM area
I/O relay area
Features of the Direct
Connection Function
1-4-2 Host Link
Auxiliary relay area Timers/counters
The direct connection function has the following features.
• The bits and words referring to operating status and work instruction information and those for storing input data can be freely allocated to almost any area of the PLC memory.
• Since the NT31/NT31C can directly refer to PLC bit and word data without using the program at the PLC, it can be connected to the PLC without changing the PLC program which controls the currently running production line.
• The area to control and provide notification of NT31/NT31C status, including display screens, display/no display status, and buzzer output, can be freely allocated to any part of the PLC data area. This means that the
PLC status can be read and controlled just by reading this area at the
PLC side, without preparing a special communications program.
The direct connection function allows the NT31/NT31C to directly read and write almost all bits and words in the PLC and to automatically change the
NT31/NT31C screen display. This function can reduce the load on the PLC so that its program development efficiency is improved.
The host is connected to a PT in a 1:1 connection, and the words and bits of the host are read and displayed by host link communications. This method can be used for connection to the majority of PLC types.
1-4-3 NT Link
NT link is a method for high-speed communications with a PLC using the direct connection function. The PLCs that can be connected with the NT link are as follows.
• When using the built-in host link function of a CPU Unit or SRM1:
CPM1, CPM2A, CPM2C, CQM1, CQM1H, C200HS, C200HX/HG/HE(-
Z)E, CS1G/CS1H-E(V1), CS1D, CJ1G/CJ1H/CJ1M, CVM1/CV-series
PLC (-EV1 or later version), SRM1
17
Communications with the Host
Features of the NT Link
Section 1-4
Besides the 1:1 NT Link method, in which one PLC is connected to one PT, the NT31/NT31C can also use the 1:N connection NT Link method, which allows a maximum of eight PTs to be connected to one PLC port.
PLCs that can be connected with the 1:N connection NT Link method are as follows: CQM1H, C200HX/HG/HE (-Z)E, CS1G/CS1H-E(V1), CS1G/CS1H-H
CS1D, CJ1G/CJ1H/CJ1M PLCs.
The NT31/NT31C also supports OMRON’s high-speed 1:N NT Link that provides faster 1:N communications. The only PLCs that support the high-speed
1:N NT Link are the -EV1 and higher versions or the high-speed versions of the CS1G/CS1H PLCs and the CS1D and CJ1G/CJ1H/CJ1M PLCs.
In the following sections, the term NT Link is used to refer to the NT Link communications method in general, the term 1:1 NT Link is used to refer specifically to NT Links with a 1:1 connection, and the term 1:N NT Link is used to refer to both standard and high speed NT Links with 1:N connections. When necessary, the standard 1:N NT Link is distinguished from the high-speed 1:N
NT Link.
The NT link has the following features.
• High-speed communications with specific types of PLCs can be executed.
The NT31/NT31C also supports OMRON’s high-speed 1:N NT Link.
• Writing in units of bits to the PLC memory area is possible.
This enables the other bits of words to which a touch switch has been allocated to be allocated for other purposes (e.g. a lamp).
However, since data is written to the DM area in word units, the other bits of words allocated to touch switches in this area cannot be used for other purposes.
• The NT link can be used even when the PLC is in the RUN mode. (When the host link method is used, the NT31/NT31C switches to the monitor mode when the PLC is in the RUN mode.)
• In the case of PTs that support the standard 1:N NT Link (NT20S, NT31,
NT31C, NT600S, NT620S, NT620C, NT625C, NT631, NT631C) up to 8
PTs can be connected to one port of the PLC and used at the same time.
Up to 8 PTs (NT31, NT31C, NT631, and NT631C) can also be connected simultaneously when the high-speed 1:N NT Link is being used.
All of the PTs connected to a PLC port must use either the standard or high-speed 1:N NT Link; the two communications systems cannot share a single port.
• When using a C200HX/HG/HE-(Z)E PLC and standard 1:N NT Links, up to three 1:N NT Link systems (i.e., 24 PTs) can be connected by installing a Communications Board in the option slot of the CPU Unit. (Only the standard 1:N NT Link can be used.) For details on the Communications
Board, refer to the SYSMAC Communications Board Operation Manual
(W304-E1@).
• When using a CQM1H PLC and standard 1:N NT Links, multiple 1:N NT
Link systems can be connected by installing Serial Communications
Boards in the Inner Board slots. For details on the Serial Communications
Board, refer to the CQM1H Serial Communications Board Operation Man-
ual (W365-E1@).
18
Communications Using Memory Links
Section 1-5
• Multiple 1:N NT Link systems (standard or high-speed) can be connected by installing a Communications Board in the Inner Board slot of the CPU
Unit for a CS1G/H/D PLC or installing a Serial Communications Unit on the Backplane for a CS1G/H/D or a CJ1G/M/H PLC. For details on the
Communications Board/Communications Unit, refer to the CS/CJ-series
Serial Communications Board/Unit Operation Manual (W336-E1@).
• If the PLC used supports the Programming Console function, the NT31/
NT31C can be used as a Programming Console.
• If the PLC being used supports the Device Monitor function, the NT31/
NT31C can be used to change the PLC’s operating mode and read/ change data in the PLC’s memory areas.
The NT link is compatible with the host link. The NT31/NT31C screen data and PLC programs used with the host link direct connection method can be used with the NT link method as they are.
1-4-4 Connecting to other Companies’ PLCs
Installing a system program for multi-venders by using a specific system installer enables the NT31/NT31C to be connected to the PLCs of other models in direct connection. This system installer is supplied with the Support Tool
(NT-ZJCAT1-EV4).
Compatible PLC
The NT31/NT31C can be connected to the following model PLCs.
• Mitsubishi A series programmable controller (computer link module)
• Mitsubishi FX series programmable controller
• SLC 500 Series by Allen-Bradley
• 90-20 and 90-30 Series by GE Fanuc
• S7-300 and S7-400 Series by Siemens
For details on the procedure for connecting to other model PLCs, refer to the
PLC Connection Manual or NT31/631 Multi Vendor Connection Manual.
1-5 Communications Using Memory Links
In this section, a communications method other than the direct connection, called the memory link, is discussed.
1-5-1 Memory Link
Memory link is a method to send and receive data between a personal computer or a FA computer and the NT31/NT31C by using RS-232C/422A communications.
In memory link, there is an area called PT Memory, as shown below, inside the NT31/NT31C, and this area is treated as a virtual area on the PLC. This allows PT memory and the display elements of the NT31/NT31C to make a quasi-direct connection. By sending a command for the memory link, the host can make the NT31/NT31C execute processes through PT memory. Frequently used commands are kept handy for read and write tasks of the numeral memory table, character-string memory table, and bit memory table.
19
Communications Using Memory Links
Numeral memory table
NT31/NT31C
PT
PT memory
Lamp
Direct connection
RS-232C/422A communications
PLC
Section 1-5
In the memory link method, the only difference is that the NT31/NT31C finds its communications target inside instead of outside. In the memory link method, therefore, change of the target is all that is needed to be capable of using the exact screen data that is acquired by the direct connection. (With the NT31/NT31C, the Support Tool must be used to convert the data to screen data for the memory link.)
When compared to the direct connection of the host link or NT link methods, the memory link method has some restrictions regarding the use of some functions, as described below.
• The Programming Console and Device Monitor functions cannot be used.
• The following strobes of PT status notify bits do not turn ON (page 7 to
27).
Screen switching strobe
Numerals input strobe
Character-string input strobe
• The usable area for allocation is the PT memory only.
1-5-2 Comparison between Direct Connection and Memory Link
The major differences between the direct connection and the memory link are as follows:
• In the memory link method, the communications with the host should be carried out by using commands. Compared to the ordinal direct connection, which can be used requiring almost no programs, the memory link method requires a program that is necessary for interchange of commands. This, however, gives advantages to the memory link method by using a large variety of functions available in the direct connections from major models such as a personal computer and a FA computer equipped with RS-232C/RS-422A communications means, allowing the PT to be suited for larger usage.
• Actual PLCs have many kinds of areas, where as PT memory is a single area with only one kind. When creating screen data by using the memory link methods, it is always necessary to allocate display parts in the PT memory.
For communications between the host and the PT by the memory link method and for handling screen display elements, refer to the NT31/NT31C/NT631/
NT631C Programmable Terminal Reference Manual.
1-5-3 Memory Link Online Transfer Function
When memory link communications are being used, the NT31/NT31C can be switched to Transmit mode from the host even if the NT31/NT31C is operating and screen data can be written. (The NT31/NT31C can be returned to RUN mode after the screen data is written.)
20
Before Operating
Section 1-6
The memory link online transfer function can be used to replace screen data at a fixed time each day or replace screen data with maintenance screen data for maintenance.
For more details on the memory link online transfer function, refer to information on the memory link online transfer function in the NT31/NT31C/NT631/
NT631C Programmable Terminal Reference Manual.
1-6 Before Operating
Follow the procedure given below to start the system of the NT31/NT31C.
Host NT31/NT31C Support Tool
Set the host settings.
• For the host link, refer to
manuals for the host link unit and peripheral tools.
• For the NT link (1:1), refer
• For the NT link (1:N), refer
• For the high-speed NT link
• For the Memory link, refer
Install the PT in the operation panel.
Connect the power supply.
Install the system program.
*1
the Support Tool manual.)
Install the Support
Tool at the computer.
(Refer to the manual for the Support Tool.)
Make the settings in the system installer mode.
*2
Transmit the screen data.
Create the screens.
(Refer to the NT31/NT31C/NT631/NT631C
Programmable Terminal Reference Manual
and the Support Tool Operation Manual.)
Connect to the
NT31/NT31C.
Create the host program.
Set the memory switches.
Connect to the host.
When RS-232C used at the PT: refer to section 4
When RS-422A/485 used at the PT: refer to section 5
Confirm the settings and check communications.
Reference:
Start operation.
*1
System program installation is only done in special circumstances, for example when changing the system program, or to recover the original status of the installed program. This operation is not normally necessary.
When using other PLC models (sequencers), however, it is necessary to install specific system programs.
*2
Display of the system menu, and all change operations, can be inhibited.
This enables you to prevent the accidental deletion or alteration of screens and settings.
• For the system program, use the NT31/NT31C system program supplied as an accessory with the NT-series Support Tool (NT-ZJCAT1-EV4).
• For the Support Tool, use NT-series Support Tool for Windows (Ver. 4.
@).
21
Before Operating
Section 1-6
Refer to the following manuals for the devices and software.
Device or Software
NT31/NT31C, NT631/
NT631C
Reference Manual
System Installer
Support Tool
PLC
CompoBus Master
Control Unit
Programming
Devices
Host Link Unit/
Serial Communications Board
Manual Title
NT-series Support Tool for Windows (Ver. 4.
@) Operation Manual
NT-series Support Tool for Windows (Ver. 4.
@) Operation Manual
SYSMAC CPM1 Operation Manual
SYSMAC CPM1A Operation Manual
V061-E1-05
V061-E1-05
W262-E1@
W317-E1@
W352-E1-
@
W353-E1@
SYSMAC CPM2A Operation Manual
SYSMAC CPM1/CPM1A/CAM2A/CPM2C/SRM1(-V2)
Programmable Controllers Programming Manual
SYSMAC CPM2C Operation Manual
SYSMAC C200H Operation Manual (for CPU01/03/11) (programming)
SYSMAC C200H Operation Manual (for CPU21/23/31) (programming)
SYSMAC C200HS Installation Guide
SYSMAC C200HS Operation Manual (programming)
SYSMAC C200HX/HG/HE-Z Installation Guide
SYSMAC C200HX/HG/HE Programming Manual
SYSMAC C200HX/HG/HE-Z Programming Manual
SYSMAC C1000H/C2000H Operation Manual (programming)
SYSMAC CQM1 Programming Manual
W356-E1@
W130-E1@
W217-E1-
@
W236-E1@
W235-E1@
W302-E1@
W303-E1-
@
W322-E1@
W140-E1@
W228-E1@
W363-E1-
@
W202-E1@
SYSMAC CQM1H Operation Manual
SYSMAC CVM1/CV500/CV1000/CV2000 Operation Manual: Ladder Diagrams
SYSMAC CS Series Programmable Controllers Operation Manual
SYSMAC CJ Series Programmable Controllers Operation Manual
W339-E1@
W393-E1@
W394-E1-
@
SYSMAC CS Series, CJ Series, NSJ Series Programmable Controllers
Programming Manual
SYSMAC CS Series, CJ Series, NSJ Series Programmable Controllers
Operation Manual
SYSMAC CS/CJ Series Programming Consoles Operation Manual
SYSMAC CS/CJ/CP Series, NSJ Series Communications Commands
Reference Manual
W340-E1-
W341-E1-
W342-E1-
@
@
@
SYSMAC CS/CJ Series Serial Communications Boards,
Serial Communications Units Operation Manual
W336-E1-
@
SYSMAC CQM1H Series Serial Communications Board Operation Manual W365-E1@
SRM1 Operation Manual W318-E1@
SYSMAC Support Software Operation Manual: C-series PLCs
SYSMAC Support Software Operation Manual: CVM1 PLCs
SYSMAC CPT User Manual and Quick Start Guide
CX-Programmer Operation Manual
SYSMAC C-series Host Link Unit Operation Manual
SYSMAC CVM1/CV-series Host Link Operation Manual
SYSMAC C200HW-COM01 C200HW-COM02-V1 to C200HW-COM06-EV1
Serial Communications Board Operation Manual
Manual Number
V064-E1-1
W248-E1@
W249-E1@
W332-E1@
W333-E1@
W446-E1@
W143-E1@
W205-E1-
@
W304-E1@
22
SECTION 2
Preparing for Connection
This section describes the connection methods that are possible with the PTs, and the functions of the parts of PTs, as the required knowledge before connecting to the host and to the peripheral devices.
23
Method for Connection to the Host
Section 2-1
2-1 Method for Connection to the Host
This section describes the methods for connection to the host used with the
NT31/NT31C, and the relationship between the connection method and the communications method.
NT31/NT31C Communications Ports and Communications Methods
The NT31/NT31C has two communications ports. Their uses are indicated in the table below.
Communications port
Serial port A
Usable communications methods Communications type
Host link RS-232C
NT link (1:1)
NT link (1:N)
(*1)
Memory link
(Support Tool connection)
(bar code reader input function)
Serial port B Host link
NT link (1:1)
NT link (1:N)
(*1)
Memory link
RS-232C
RS-422A/485
(select between RS-232C and RS-422A/485)
*1: There are two NT Link (1:N) communications rates: standard and highspeed.
Communications Methods That Can Be Used with the Host
The following communications methods can be used with the hosts that can be connected to the NT31/NT31C.
• RS-232C
• RS-422A
• RS-485
The communications types that are actually supported differ depending on the
host unit. For details, refer to SECTION 4 Connecting to the Host from the RS-
232C Port and SECTION 5 Connecting to the Host from the RS-422A/485
Converting the Communications Type with an RS-232C/RS-422A Adapter
The following communications type conversions are possible by using an RS-
232C/RS-422A Adapter (NT-AL001-E, made by OMRON).
• RS-232C
⇔ RS-422A
• RS-232C
⇔ RS-485
24
Method for Connection to the Host
Section 2-1
Communications
Type at
PT
Communications
Type at
Host
RS-232C RS-232C
Combinations of Communications Method and Connection Method
The connection methods that can be used depending on the communications method used and the communications type for communications between the
NT31/NT31C and the host are indicated in the table below.
Usable Connection Method
Direct 1:1 connection
PT Host
Usable Communications Method Details
Host link
NT
Link
(1:1)
NT
Link
(1:N)
Memory link
❍ ❍ ❍ ❍
RS-422A RS-232C
RS-232C (max. 15 m)
1:1 connection via a convertor unit
PT
Convertor unit
(NT-AL001)
Host
❍ ❍ ❍ ❍
RS-422A
(max. 500 m)
RS-232C
(max. 2 m)
1:N connection via a convertor unit
PT
Convertor unit
(NT-AL001)
Host
RS-422A
(total length 500 m)
RS-232C
(max. 2 m)
× × ❍ ×
RS-422A
Direct 1:1 connection
PT Host
RS-422A (max. 500 m)
1:N connection
PT
RS-422A (total length 500 m)
Host
❍
×
❍
×
❍
❍
❍
×
❍: Connection possible ×: Connection not possible
25
Method for Connection to the Host
Section 2-1
Communications
Type at
PT
Communications
Type at
Host
RS-485 RS-232C
Usable Connection Method
1:1 connection via a convertor unit
PT
Convertor unit
(NT-AL001)
Host
×
Usable Communications Method
Host link
NT Link
(1:1)
NT Link
(1:N)
Memory link
Details
× ❍ ×
RS-485
(max. 500 m)
RS-232C
(max. 2 m)
1:N connection via a convertor unit
PT
Convertor unit
(NT-AL001)
Host
× × ❍ ×
RS-485
(total length 500 m)
RS232C
(max. 2 m)
× ❍ ×
RS-485
Direct 1:1 connection
PT
RS-485 (max. 500 m)
1:N connection
PT
Host
Host
×
×
RS-485 (total length 500 m)
× ❍ ×
❍: Connection possible ×: Connection not possible
• The RS-232C/RS-422A Adapter (NT-AL001) requires +5 V, 150 mA at pin
6 of the RS-232C connector. Check the signals of the RS-232C connector at the host.
• +5 V is not output from serial port B of the NT31/NT31C. When connecting an NT-AL001 at serial port B, a separate power supply is required for the NT-AL001.
• The cable of an NT-AL001 cannot be connected or disconnected while the power is ON. Always connect or disconnect the cable while the power supply from the RS-232C cable is OFF (while the host power supply is
OFF).
• NT link (1:N) connection is possible even when RS-232C is used at the
NT31/NT31C side for communications with the host, but in this case one
NT-AL001 Adapter is required for each NT31/NT31C. In this case, it is convenient to use serial port A of the NT31/NT31C. +5 V is not output from serial port B.
26
Names and Functions of Parts
Section 2-2
2-2 Names and Functions of Parts
Before starting operation, the names and functions of the parts of the NT31/
NT31C are described here as a confirmation. A method of hardware settings is also described.
Front View
POWER LED
Lit in green when the power is supplied.
POWER
RUN
RUN LED
• Lit in green while the unit is in the RUN mode.
• Lit in orange or red when the battery is low (orange in the RUN mode, red in other modes).
Display
The NT31 has a monochrome
LCD screen with a backlight, and the NT31C has an STN color
LCD screen with a backlight.
The whole area of the screen is a touch panel which works as an input device.
Reference:
The NT31/NT31C comes in two body colors.
NT31
NT31-ST123-EV3
NT31-ST123B-EV3
NT31C Body Color
NT31C-ST143-EV3 Beige
NT31C-ST143B-EV3 Black
27
Names and Functions of Parts
Section 2-2
Rear View
GR terminal
Grounding terminal to prevent malfunction due to noise.
Power input terminals
Connect the power to the
NT31/NT31C at these terminals.
Battery cover
The battery is secured underneath this cover.
Reset switch (inside the cover)
Used to initializes all the statuses of the NT31/NT31C.
However, registered data such as screen data, and memory switch settings, retain their statuses before initialization.
Expansion interface connector
(under the label)
When using an expansion interface unit such as a memory unit, peel off the label and connect it here.
24V
DC
PRINTER PORT B PORT A
Warning label
Note
Serial port A connector
Connect the cable for connection to the host or Support
Tool here. A bar code reader can also be connected here. This is a 9-pin connector for RS-232C use only.
Serial port B connector
Connect the cable for connection to the host here. Depending on the setting made at the NT31/NT31C system menu, either RS-232C or
RS-422A/485 may be used. This is a 25-pin connector.
It is not possible to use RS-232C and RS-422A/485 at the same time.
Printer connector
Connect the printer cable here.
Output conforms to Centronics specifications.
Confirm system safety before turning the power ON/OFF or resetting.
28
SECTION 3
Hardware Settings and Connections
This section describes the settings of the PTs and methods for connection to peripheral devices.
Connecting to the Host from the RS-422A/485 Port.
3-1-1 Installation Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1-2 Installation in the Operation Panel . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1-3 Power Supply Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3-1 Connection Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-4-1 Connection Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-4-2 Setting a Bar Code Reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-5-1 Installation Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29
Installation
Note
Section 3-1
On unpacking the NT31/NT31C and peripheral devices, check their external appearance and confirm that there is no damage. Also confirm that there is no abnormal noise on shaking the PT lightly.
3-1 Installation
Install the NT31/NT31C in the operation panel and connect the power to the
NT31/NT31C as described below.
3-1-1 Installation Environment
Observe the following points when installing the PT in an operation panel.
Note
1.
Do not install the PT at sites subject to the following conditions.
• Severe temperature variations
• Temperatures or humidities outside the ranges stated in the specifications
• High humidity, condensation
• Splashing chemical agents
• Severe oil splashing
• Corrosive or flammable gases
• Strong vibrations or shocks
• Direct exposure to wind and rain (outdoor sites)
• Strong ultra-violet irradiation
2.
Take adequate measures to ensure shielding if the PT is used at a location subject to any of the following conditions.
• Static electricity, or noise from other equipment
• Strong electromagnetic fields
• Nearby power cables
• Potential exposure to radioactivity
3-1-2 Installation in the Operation Panel
The NT31/NT31C is mounted in an operation panel by embedding it in the panel.
Use the panel fittings and tool (Phillips screwdriver) included in the product package and follow the procedure below.
1,2,3...
1.
Open a hole of the dimensions shown below in the panel and install the
NT31/NT31C from the front side of the panel.
131
+0.5 mm
0 mm
184
+0.5 mm
0 mm
2.
Attach the panel fittings at the four positions at top and bottom and two positions at right and left, shown below, from the rear of the NT31/NT31C.
Fit the hook of the fitting in the square hole in the body and tighten the screw with the Phillips head screwdriver while lightly pulling the fitting.
30
Installation
Section 3-1
24V
DC
PRINTER PORT B PORT A
Note
1.
During work at the panel, take care to ensure that no metal scraps enter the PT.
2.
The thickness of applicable operation panel is 1.6 mm to 4.8 mm. All fittings must be tightened uniformly to a torque of 0.5 to 0.6 N
⋅m in order to ensure water- and dust-resistance. Front sheet of NT31/NT31C may be warped if the tightening is too strong or not uniformity. The panel must not be soiled or warped, and must be able to support an installation that will remain secure and strong.
3-1-3 Power Supply Connection
Connect a 24 VDC power supply to the power input terminals.
Note
1.
Depending on how the power is switched ON/OFF, the entire system may stop. Follow the correct procedure when switching the power ON/OFF.
2.
Carefully check the wiring before switching ON the power.
3.
Do not connect AC power to the DC terminals.
4.
Use DC power supplies with low voltage fluctuation.
5.
Do not perform a dielectric strength test.
6.
If complying with EC directives (low voltage directives), use a power supply with reinforced insulation (compliance with EC directives is planned for
June 1998).
24 VDC
Breaker
Note
24 VDC power supply
Power Supply
The applicable power supply specifications are as follows.
Item
Power supply
Allowable power supply voltage fluctuation range
Power supply voltage capacity
Value
24 VDC
20.4 VDC to 26.4 VDC (24 VDC –15%, +10%)
15 W or more
Parts Used for Connection
For the connection to the power supply terminal block, twisted wires of 2 mm
2 or greater cross sectional area and M3.5 size crimp terminals must be used.
31
Installation
Tighten the screws on the terminal block to a torque of 0.8 N
⋅m.
Fork type Round type
7 mm max.
7 mm max.
Section 3-1
Note
Recommended Terminals
Maker
Japan Solderless Terminal MFG
Fuji Terminal
Nichifu Terminal
Type
(fork type)
2-YS3A
2-YAS3.5
2Y-3.5
Type
(round type)
2-3.5
V2-S3.5
2-3.5
Applicable Wire
(stranded wire)
2.0 to 2.63 mm
2
Conformance to Shipbuilding Standard
• Use gaskets or other materials to completely shield all openings and other gaps in the control panel.
• Use copper tape or other electrically conductive tape to shield gaps between the cutout and the PT before securing the PT in place.
• To suppress noise terminal voltage, perform installation under the following conditions. It is recommended to use the following product for the DC power supply.
Recommended Power Supply model: S82K-03024
Manufacturer: OMRON
3-1-4 Grounding
1,2,3...
The NT31/NT31C has a functional ground terminal ( ).
Carry out wiring under the following conditions.
1.
In cases where there is a potential difference between the grounds of the
NT31/NT31C and the host, ground as shown in the following figure. If there is some distance between the NT31/NT31C and host and grounding at a single point is difficult, do not connect the functional ground terminal ( ) of the NT31/NT31C.
2.
If the NT31/NT31C is installed in the same panel as equipment that generates noise, such as a motor or inverter, do not ground the functional ground terminal ( ) of the NT31/NT31C.
NT31/
NT31C
Host
Grounding at a single point
Note
Carry out grounding correctly in order to prevent operating errors due to noise.
32
Connecting to the Support Tool
Section 3-2
3-2 Connecting to the Support Tool
In order to install the system program in the NT31/NT31C, or to transmit screen data created with the Support Tool to the NT31/NT31C, the NT31/
NT31C must be connected to a personal computer with an RS-232C cable.
The NT31/NT31C connects the RS-232C cable from a personal computer at serial port A. When the host is connected at serial port B, the connection with the host can be maintained as it is while the NT31/NT31C is connected to the
RS-232C cable from a personal computer.
However, when a bar code reader is being used, it must be disconnected, so that the RS-232C cable can be connected, since they both use serial port A.
PRINTER PORT B PORT A
Serial port A
(RS-232C, 9-pin)
Communications Conditions
The communications conditions are automatically set when the system installer and Support Tool are started.
Recommended Connector Cable
Use the cable indicated below.
• CV500-CN228 (length: 2 m), made by OMRON
(D-SUB 9-pin, male
⇔ D-SUB 25-pin, male)
• XW2Z-S001 (conversion cable), made by OMRON
(D-SUB 25-pin, female
⇔ half pitch 14-pin, male)
• XW2Z-S002 (length: 2 m), made by OMRON
(D-SUB 9-pin, male
⇔ D-SUB 9-pin, female)
For details on making a connector cable, refer to Appendix F Making the
33
Connecting a Printer
Section 3-3
3-3 Connecting a Printer
Connecting a printer to the NT31/NT31C enables printing of hard copies of the currently displayed screen (printing of screen images), and, by system menu operations, printing of the screen display history and alarm history.
The following types of data can be printed, depending on the printer connected to the NT31/NT31C. For details, refer to the pages cited.
• Hard copies of the screen (Refer to information on printing data and checking the printer status in the NT31/NT31C/NT631/NT631C Program-
mable Terminal Reference Manual.)
• Screen display history record data (page 198)
• Alarm history record data (page 200)
3-3-1 Connection Method
Reference:
Connect the printer to the NT31/NT31C with a Centronics cable, as shown below. The length of the cable should not exceed 1.5 m.
If the connector cable is connected or disconnected while the power to the printer is on, the NT31/NT31C may malfunction. Always turn off the power to the printer before connecting or disconnecting the cable.
DC
PRINTER PORT B PORT A
Recommended Connector Cable
The following connection cables are recommended.
• NT-CNT121 (1.5 m, 20-pin to 36-pin), made by OMRON
Recommended Printers
When using a printer, use one that can emulate an NEC PC-PR201H (using the NEC PC-PR201PL control protocol) or complies with one of the following EPSON control standards: ESC/P 24-J83C (color), or ESC/P 24-
J82 (monochrome).
When using a monochrome printer with an NT31C, set Tone printing with
the NT31C memory switches (page 175).
3-4 Connecting a Bar Code Reader
Note
Connecting a bar code reader to the NT31/NT31C enables bar code data to read as character strings into character string input fields, and set in character string memory tables.
In order to use a bar code reader, the Comm. A Method memory switch must be set to Bar-Code Reader.
For details on the method for inputting character strings with a bar code reader, refer to 3-7 Input of Numeric Values and Character Strings in the
NT31/NT31C/NT631/NT631C Programmable Terminal Reference Manual.
Make sure that the power supply to the bar code reader and the power supply to the PT are both OFF before connecting or disconnecting the cable.
34
Connecting a Bar Code Reader
Section 3-4
3-4-1 Connection Method
Connect the bar code reader to serial port A of the NT31/NT31C, as shown in the figure below.
NT31/NT31C
Bar code reader
PRINTER PORT B PORT A
9-pin connector
Serial port A
(RS-232C, 9-pin)
Reference:
Connector cable Bar code reader cable
Bar code reader must match the communications setting (3-4-2 Setting a Bar
Code Reader, page 35) and data format (3-4-3 Data Format, page 36) in
order to connect to the NT31/NT31C. Please confirm the specification of the bar code reader before using.
For details on making a connector cable, refer to Appendix G Making the
Cable for Connection to a Bar Code Reader.
The bar code reader must be connected to serial port A. This means that it cannot be connected at the same time as the Support Tool. Note also that when a bar code reader is used, the host must be connected at serial port B.
3-4-2 Setting a Bar Code Reader
After connecting a bar code reader, set the communications conditions and other settings for it by selection from the system menu.
Settings at the NT31/
NT31C
At the NT31/NT31C, set the communications conditions for communications with the bar code reader by using the memory switches, selecting from the options indicated in the table below.
For more detailed information on the actual system menu operations, refer to
6-10 Setting the Bar Code Reader Input Function.
Data bits
Stop bit(s)
Item Possible Settings
7 or 8 bits
1 or 2 bits
Parity None, odd, even
Communications speed 4800, 9600, 19200 bps
Input Method Manual, Auto
Default Setting
7 bits
2 bits
Even
9600 bps
Manual
Settings at the Bar Code
Reader
Make the settings shown in the table below at the bar code reader. Make sure that the communications speed, parity, stop bit, and data bit settings match the communications settings made at the NT31/NT31C. For details on the setting method, refer to the instruction manual for the bar code reader used.
Item
Communications speed
Parity
Stop bits
Data bits
Preamble
Postamble
RS/CS control
Possible Settings
4800, 9600, 19200 bps
EVEN, ODD, NONE
1 or 2 bits
7 or 8 bits
STX
ETX
Available
35
Using a Memory Unit
Section 3-5
Item Possible Settings
Communications protocol No-protocol mode
Transmission of number of bar code label digits Transmission prohibited
Transmission of ID characters Transmission prohibited
Bar code types
Trigger switch setting
Multi-reading (all types can be read)
Automatic reading mode
About RS/CS Control
During bar code reading, the NT31/NT31C performs RS/CS control. When the Input Method setting of the NT31/NT31C is set to Auto, the RS signal is turned OFF, prohibiting the next input, until the read data has been sent to the host as notification.
Because of this, when the Auto setting is made, the next input is not possible until the data has been sent to the host as notification.
However, when the setting is Auto and the RS/CS signals of the cable are shorted, RS/CS control is ineffective. Consequently, data input from the bar code reader to the NT31/NT31C is updated regardless of whether or not the data is sent to the host as notification.
For details, refer to the instruction manual for the bar code reader used.
3-4-3 Data Format
The data format for communications when using the bar code input function of the NT31/NT31C is shown below.
STX
(02
H
)
Data Data Data ETX
(03
H
)
The characters which are effective as data are hexadecimal codes from 20 to
7FH, and the maximum data length is 40 bytes.
Data which does not follow the data format described above is invalidated and discarded.
3-5 Using a Memory Unit
Reference:
This section describes how to use of a Memory Unit.
The function of the Memory Unit is determined by the model of PT being used, regardless of the version of the system program installed in the PT.
PT Model
Without V
@ suffix
With V @ suffix
Function of Memory Unit
The system program cannot be transferred using the Memory
Unit.
The system program can be transferred using the Memory Unit.
By installing a Memory Unit (NT-MF261) on the NT31/NT31C, the screen data in the NT31/NT31C can be recorded (backed up) in the Memory Unit.
In addition, the screen data in the Memory Unit can be automatically read into the NT31/NT31C when it starts up. This means that system program and screen data can be changed easily at the operation site without connecting to the Support Tool.
The data in the Memory Unit is retained without backup by a battery or other means.
36
Using a Memory Unit
Note
Reference:
Section 3-5
In systems where there are frequent setup changes, by preparing a number of
Memory Units in advance and recording screen data in them in accordance with the control performed in each case, the NT31/NT31C screen data can be changed simply by installing the Memory Unit, without connecting to the Support Tool.
In addition, even if NT31/NT31C is replaced, the previous status can be maintained simply by installing the Memory Unit that retains the system program and screen data of the previous NT31/NT31C.
By using the following combinations, data can be stored (backed up) to a
Memory Unit.
• Screen data for two PTs.
• System program for two PTs.
• System program and screen data for one PT.
One Memory Unit can store the screen data for two PTs.
1.
Make sure that the power supply to the PT is OFF before connecting or disconnecting a Memory Unit.
After mounting a Memory Unit, be sure to tighten its two screws.
2.
During data transmission, do not turn off the power supply to the NT31/
NT31C or reset it.
3.
Do not touch the PCB (printed circuit board) with bare hands.
• When a Memory Unit is mounted, the NT31/NT31C cannot be set to the operating status. On completion of data transmission with a Memory Unit, always disconnect the Memory Unit from the NT31/NT31C before starting
NT31/NT31C operation.
• Memory Units (NT-MF261) can be used in common for the following PT models: NT31, NT31C, NT631, and NT631C. One Memory Unit can store screen data for up to two PTs of different models. However, since the data compatibility is not complete between NT31/NT31C and NT631/NT631C, an error may occur if an attempt is made to read NT631C data with an
NT31C. (The data must be converted using the Support Tool.)
Note also that although there is data compatibility between the NT31 and NT31C, and between the NT631 and NT631C, the display may not be correct since these models have different numbers of colors.
• One Memory Unit can store a system program for up to two PTs of different models. In order to transmit a system program from the Memory Unit to the NT31/NT31C, the system program must be compatible to the target
PT model.
• The statuses of memory switch settings and system settings can be recorded to the Memory Unit besides screen data. When the data in the
Memory Unit is written into the NT31/NT31C, make sure that these settings can be adapted to the NT31/NT31C used before transmission.
3-5-1 Installation Method
Install the Memory Unit (NT-MF261) at the expansion interface connector at the rear of the NT31/NT31C as shown in the figure below (the expansion interface connector is located underneath the note label.).
37
Using a Memory Unit
Section 3-5
Mounting screws
3-5-2 Method of Use
As shown in the figure below, a Memory Unit has two sets of four DIP switches, and the operation is determined by the DIP switches that are set at startup.
1 2 3 4 1 2 3 4
DIP Switch Functions
Note
Factory setting is turned all to off.
OFF
SW1
OFF
SW2
1.
Always confirm that the power to the NT31/NT31C is off before setting the
DIP switches.
2.
Do not touch the PCB (printed circuit board) directly with bare hands.
The functions of the DIP switches on the Memory Unit are indicated in the table below.
• SW1
Switch
SW1-1 Automatic transmission (writing from the Memory
Unit to the PT)
Function
SW1-2 Automatic transmission (writing from the PT to the
Memory Unit)
SW1-3
SW1-4
Manual transmission (Direction of transmission and bank used selected at the PT touch panel)
Data type to transfer
OFF: Not executed
ON: Executed
OFF: Not executed
ON: Executed
OFF: Not executed
ON: Executed
OFF: Screen data
ON: System program
• SW2
Switch
SW2-1 Disable/enable writing to PT
Function
OFF: Disable
SW2-2 Disable/enable writing to the Memory Unit
ON: Enable
OFF: Disable
ON: Enable
SW2-3 Area (bank) selection of automatic transmission. * OFF: Bank 0
SW2-4 System/Screen simultaneous transmission
ON: Bank 1
OFF: Disable
ON: Enable
38
Using a Memory Unit
Reference:
Writing Screen Data to a
Memory Unit Using
Automatic Transmission
(PT to Memory Unit)
Reference:
1,2,3...
Section 3-5
* The Memory Unit stores system program or screen data for one PT in each of areas (bank 0, bank 1). (The total data storage is for two PTs.) SW2-3 sets which of these two banks is used for automatic transmission.
• In the following cases, a mode setting error occurs.
• More than one of the SW1-1 to SW1-3 switches are set to ON.
• None of the SW1-1 to SW1-3 switches are set to ON.
• In the following case, a protect setting error occurs.
Transmitting to the write destination has been disabled by the setting for
SW2-1 or SW2-2.
• In the following cases, a data transmission error occurs.
• An attempt is made to transmit data other than the system program to
PT system program area.
• An attempt is made to transmit the system program to PT screen data area.
• For details on mode setting errors and protect setting errors, refer to
Errors When Using a Memory Unit (page 43).
In this mode, system program or the screen data in the NT31/NT31C is forcibly written to the Memory Unit irrespective of the setting status of the NT31/
NT31C.
This mode is convenient if the touch panel is broken and touch switch operation is not possible, or if someone unfamiliar with touch switch operation at the operation site is using the system.
When screen data is written to the Memory Unit, the data that has been stored in the specified area up until that point is lost (if the data is written into only one
Bank, the other Bank will not be affected).
Method of Execution
Use the following procedure to write the screen data in the NT31/NT31C to the Memory Unit by automatic transmission.
1.
Check that the power supply to the NT31/NT31C is OFF, then set the DIP switches of the Memory Unit as follows after installing Memory Unit to
NT31/NT31C.
Reference:
SW1
SW2
SW2-4 ON: System/Screen transmitted simultaneously
OFF: System/Screen not transmitted simultaneously
SW2-3 ON: Bank 1
OFF: Bank 0
SW1-4 ON: System program
OFF: Screen data
It is not strictly necessary to set SW2-1 to OFF (to disable writing to the
PT), but it is recommended to do so to avoid loss of data in the event of operating errors.
• Setting SW2-4 to ON (System/Screen transmitted simultaneously) disables the setting of SW1-4.
• Setting SW2-4 to ON (System/Screen transmitted simultaneously) disables the setting of SW2-3, writes the system program into bank 0, and the screen data into bank 1 at all times.
39
Using a Memory Unit
Section 3-5
2.
Switch the NT31/NT31C power ON.
The screen data is automatically written into the Memory Unit. The screen data in the NT31/NT31C is preserved.
The messages Preparing, Transmitting, Verifying, and Finished are displayed on the screen in accordance with the progress of data writing.
At the same time, the progress of the data writing status is displayed by the means of the number of bytes and blocks (1 bank = 16 block = 1024k byte).
RUN LED operates as follows according to the processing status.
Preparing: flashes at intervals of 1 second
Transmitting: flashes at intervals of 0.5 second
Verifying: flashes at intervals of 0.5 second
Writing Screen Data to the
PT Using Automatic
Transmission (Memory
Unit to PT)
Reference:
1,2,3...
3.
Switch the NT31/NT31C power OFF, remove the Memory Unit.
To operate NT31/NT31C continuously, switch the NT31/NT31C power back ON.
In this mode, the system program or screen data in the Memory Unit is forcibly written to NT31/NT31C irrespective of the setting status of the NT31/NT31C.
Since data transmission by this method is faster than when the Support Tool or system installer is used, it can save a lot of time. When transmitting the same system program or screen data to multiple NT31/NT31C, this mode becomes convenient.
When data is written to the NT31/NT31C, the data that has been stored up until that point is lost. When the system program is changed, the operation of NT31/
NT31C also changes.
Method of Execution
Use the following procedure to write the screen data in the Memory Unit to the
NT31/NT31C by automatic transmission.
1.
Check that the NT31/NT31C power is OFF, then set the DIP switches on the Memory Unit as follows after installing Memory Unit to NT31/NT31C.
Reference:
SW1 SW2
SW2-4 ON: System/Screen transmitted simultaneously
OFF: System/Screen not transmitted simultaneously
SW2-3 ON: Bank 1
OFF: Bank 0
SW1-4 ON: System program
OFF: Screen data
It is not strictly necessary to set SW2-2 to OFF (to disable writing to the
Memory Unit), but it is recommended to do so to avoid loss of data in the event of operating errors.
• Setting SW2-4 to ON (System/Screen transmitted simultaneously) disables the setting of SW1-4.
Setting SW2-4 to ON (System/Screen transmitted simultaneously) disables the setting of SW2-3. In this case, the data transmission becomes possible only if the data inside Memory Unit is in either of following combinations.
Bank 0: system program, Bank 1: other than system program
Bank 0: other than system program, Bank 1: system program
40
Using a Memory Unit
Section 3-5
If the combination is not as listed above, a data transmitting error occurs.
• When writing the system program into the NT31/NT31C, the type of system program inside Memory Unit and the type of PT must correspond.
Reading and Writing Data by Manual Transmission
Reference:
1,2,3...
2.
Switch the NT31/NT31C power ON.
The screen data is automatically written into the PT.
The messages Preparing, Transmitting, Verifying and Finished are displayed on the screen in accordance with the progress of data writing.
At the same time, the progress of data writing status is displayed by the means of the number of bytes and blocks (1 bank = 16 block = 1024k byte).
The RUN LED operates as follows according to the processing status.
Preparing: flashes at intervals of 1 second
Transmitting: flashes at intervals of 0.5 second
Verifying: flashes at intervals of 0.5 second
3.
Switch the NT31/NT31C power OFF, remove the Memory Unit.
To operate NT31/NT31C continuously, switch the NT31/NT31C power back ON.
In this method, the direction of transmission and area of the Memory Unit used are set by touch switch operations at the NT31/NT31C. Transmission can be executed while checking the settings.
When data is written to the NT31/NT31C or Memory Unit, the data that has been stored up until that point is lost.
Method of Execution
Use the following procedure to write screen data using manual transmission.
1.
Check that the NT31/NT31C power is OFF, then set the DIP switches on the Memory Unit as follows.
SW1
SW2
Setting of SW2-4 not relevant
Setting of SW2-3 not relevant
Setting of SW1-4 not relevant
In order to avoid loss of data in the event of operating errors, it is advisable to set SW2-1 and SW2-2 so as to disable writing to the PT from which the data is to be read.
2.
Switch the NT31/NT31C power ON.
Display language select screen appears.
41
Using a Memory Unit
Section 3-5
3.
Press the Japanese or English touch switches to select the display language.
The following descriptions are for when English is selected.
The screen shown below is displayed.
42
Reference:
Current PT Screen Data, System
The first line: Compatible PT type for the system program inside PT.
The second line: System program name and Version for the system program inside PT.
(The second line may not be displayed in the kind of system program.)
Current PT Screen Data, Screen
The comment for the screen data in the NT31/NT31C is displayed here.
Current Memory Unit Screen Data
• In the case of system program:
The first line: Compatible PT type for the system program inside the
Memory Unit.
The second line: System program name and Version for the system program inside the Memory Unit.
(The second line may not be displayed in the system program for some models.)
• In the case of screen data:
The comment for the screen data in the NT31/NT31C is displayed here.
The available transmitting destinations are altered depending on the settings of the origin of transmitting as described in the table below.
Source
[PT]screen
[PT]system
Destination
[Memory unit] Bank 0 [Memory unit] Bank 1
[PT]system/screen
[Memory Unit] Bank 0
[Memory Unit] Bank 1
[Memory Unit] Bank 0/1 (fixed)
• If system program is selected
[PT]system (fixed)
• If screen data is selected
[PT]screen (fixed)
[Memory Unit] Bank 0/1 [PT]system/screen (fixed)
• When transmitting the system program and screen data simultaneously from the PT to the Memory Unit, the setting of banks is Bank 0: system program, Bank 1: screen data, and when transmitting them from the
Memory Unit to the PT, either of the following combinations must be used.
Bank 0: system program, Bank 1: other than system program
Bank 0: other than system program, Bank 1: system program
Using a Memory Unit
Errors When Using a
Memory Unit
System Program in the PT and Memory Unit for Each
PT Mod
Section 3-5
• When writing the system program into the NT31/NT31C, the type of system program inside Memory Unit and the type of PT must correspond.
4.
Press Execute.
The data is transmitted.
The messages Preparing, Transmitting, Verifying, and Finished are displayed in accordance with the progress of data transmission. At the same time, the progress of data transmitting status is displayed by the means of the number of bytes and blocks (1 bank = 16 block = 1024k byte).
When the data transmission is operated manually, RUN LED remains OFF.
5.
Switch the NT31/NT31C power OFF, remove the Memory Unit, then switch the NT31/NT31C power back ON.
If an error occurs when using the Memory Unit, the NT31/NT31C operates as follows.
• The details of the error and remedial action are displayed on the screen.
Each screen has touch switches to change the display language from one to the other. When the manual data transmission is operating, the content of error and remedial action are shown with selected language. When the automatic transmission is operating, it is displayed in Japanese.
• The continuous buzzer sounds.
• The RUN LED flashes.
If a protect setting error occurs when executing manual transmission, it is possible to return to the Memory Unit manual transmission screen by pressing the OK touch switch, but in the case of other errors, the status described above remains in effect until the NT31/NT31C power is turned OFF or reset.
The system program for each model of PT is given in the following table.
NT31
NT31C
NT31-V3
NT31C-V3
System program for NT31/NT31C PT models without a -V suffix, and for NT31/NT31C PT models with a -V1 and -V2 suffix
System program for NT31 PT models with a -V3 suffix
When an error occurs, take remedial action by referring to the table below.
Error
Mode setting error
Protect setting error
(automatic transmission)
Protect setting error
(manual transmission)
Probable Cause
DIP switches SW1-1 to
SW1-3 are all OFF, or more than one is ON.
Writing to the data write destination has been prohibited by the setting of
SW2-1 or SW2-2.
Writing to the data write destination has been prohibited by the setting of
SW2-1 or SW2-2.
Remedial Action
Turn the NT31/NT31C power OFF, set the Memory Unit DIP switches correctly, then turn the NT31/
NT31C power back ON.
Turn the NT31/NT31C power OFF, set the Memory Unit DIP switches correctly, then turn the NT31/
NT31C power back ON.
Perform either of the following procedures.
• Press the OK touch switch to return to the Memory Unit manual transmission screen, make the correct settings, then try again.
• Turn the NT31/NT31C power
OFF, correct the DIP switches settings of the Memory Unit, then turn the power back ON.
43
Using a Memory Unit
Section 3-5
Flash memory error An error occurred during initialization of the NT31/
NT31C or Memory Unit flash memory, or during write processing.
Verify error error
Error
Transmitting data
(The automatic transmission only)
Probable Cause
An error occurred during verification processing at the flash memory of the
NT31/NT31C or the
Memory Unit.
Remedial Action
Turn the NT31/NT31C power OFF, then back ON. If the error recurs, the flash memory at the write destination may be faulty. In this case, replace the PT.
Turn the NT31/NT31C power OFF, then back ON. If the error recurs, the flash memory at the write destination may be faulty. In this case, replace the PT.
Perform either of the following procedures.
An attempt is made to transmit data other than a system program or the system program of a different PLC model into the
NT31/NT31C as the system program.
An attempt is made to write a system program into the NT31/NT31C as screen data.
• Turn the NT31/NT31C power
OFF, correct the DIP switch settings of the Memory Unit, and then turn the power back ON.
• Turn the NT31/NT31C power
OFF, set the DIP switch settings to the manual transmission, and then check the data inside the
Memory Unit.
44
SECTION 4
Connecting to the Host from the RS-232C Port
This section describes the method for connecting to the host using the RS-232C port of the PT.
4-1 Connecting to the RS-232C Port at the Host . . . . . . . . . . . . . . . . . . . . . . . . .
4-1-1 Host Types and Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1-2 Connecting Directly between RS-232C Ports . . . . . . . . . . . . . . . . .
45
Connecting to the RS-232C Port at the Host
Section 4-1
4-1 Connecting to the RS-232C Port at the Host
The method for connecting between the RS-232C port of the PT and the RS-
232C port of the host is as follows.
The following discussion is focused on the connection method to OMRON
PLCs (By using the memory link method, a connection can be made to any arbitrary RS-232 unit). When making a connection to a host other than
OMRON PLCs, refer to the PLC Connection Manual (V042-E1-
@) or NT31/
631 Multi Vendor Connection Manual (V060-E1-
@).
Direct Connection Between The RS-232C Ports Using an RS-232C Cable
This is the easiest connection method. Depending on the host to which the connection is to be made, it may be possible to use OMRON cables with connectors.
NT31/NT31C Host
RS-232C cable (max. 15 m)
Reference:
The CS/CJ-series CPU Unit cannot be connected with the 1:1 connection NT link method. Use the 1:N connection NT link method instead to make the 1:1
connection. For details, refer to Using the NT Link (1:N) Method (page 64) or
Using the High-speed NT Link (1:N) Method (page 69).
4-1-1 Host Types and Settings
The types of host that can be connected to a PT by using the RS-232C ports of both Units, and the settings to be made at the host, are described here.
When Using the Host Link Method
Compatible Host Units
Some models and series of OMRON PLCs have the host link function built in.
In the CS/CJ-series or CQM1H PLCs, the host link method can be used by installing a Serial Communications Board/Unit. In addition, some C200HX/
HG/HE(-Z)E CPU Units can be connected in the host link method by installing a Communications Board.
Check the model and series of the PLC, the type of installed Serial Communications Board, Serial Communications Unit, or Host Link Unit before making a connection.
46
Connecting to the RS-232C Port at the Host
Section 4-1
The Units that can be connected to the NT31/NT31C by the host link method using the RS-232C ports of both Units are indicated in the table below.
PLC
Series
CS
Series
Units with Built-in Host Link
Function
CS1G-CPU42/43/44/45-E(V1)
CS1H-CPU63/64/65/66/67-
E(V1)
CS1G-CPU42H/43H/44H/45H
CS1H-CPU63H/64H/65H/66H/
67H
CS1D-CPU65H/67H
CPU Units Connectable with
Host Link Units or Expansion
Communications Board/Unit
CS1G-CPU42/43/44/45-E(V1)
CS1H-CPU63/64/65/66/67-E(V1)
CS1G-CPU42H/43H/44H/45H
CS1H-CPU63H/64H/65H/66H/67H
CS1D-CPU65H/67H(*1)
CJ
Series
CJ1G-CPU44/45
CJ1G-CPU42H/43H/44H/45H
CJ1H-CPU65H/66H/67H
CJ1M-CPU11/12/13/21/22/23
C Series ---
---
C200HS-CPU21/23/31/33-E
C200HE-CPU42-E
C20HE-CPU42-ZE
C200HG-CPU43/63-E
C200HG-CPU43/63-ZE
C200HX-CPU44/64-E
C200HX-CPU44/64/65/85-ZE
---
CJ1G-CPU44/45
CJ1G-CPU42H/43H/44H/45H
CJ1H-CPU65H/66H/67H
CJ1M-CPU11/12/13/21/22/23
C1000H-CPU01-EV1
C2000H-CPU01-EV1
C200HS-CPU01/03/21/23/31/33-E
C200HE-CPU11/32/42-E
C200HE-CPU11/32/42-ZE
C200HG-CPU33/43/53/63-E
C200HG-CPU33/43/53/63-ZE
C200HX-CPU34/44/54/64-E
C200HX-CPU34/44/54/64/65/85-
ZE
---
C200HE-CPU32/42-E
C200HE-CPU32/42-ZE
C200HG-CPU33/43/53/63-E
C200HG-CPU33/43/53/63-ZE
C200HX-CPU34/44/54/64-E
C200HX-CPU34/44/54/64/65/85-
ZE
C1000H-CPU01-EV1
C2000H-CPU01-EV1
--C1000H-CPU01-EV1
C1000HF-CPU01-EV1
C2000H-CPU01-EV1
--CPM1-10/20/30CDR@
+CPM1-CIF01
CPM1A-10/20/30/40CD
@-@
+CPM1-CIF01
CPM2A-30/40/60CD @@-@
+CPM1-CIF01
(Peripheral port connection)
CPM2C-10/20
@@@@@@-@
(*2)
---
---
---
CQM1-CPU21-E
CQM1-CPU41/42/43/44-EV1
---
CQM1H-CPU11/21/51/61 (*3) CQM1H-CPU51/61
Host Link Unit or
Communications
Board/Unit
CS1W-SCU21(-V1)
CS1W-SCB21(-V1)
CS1W-SCB41(-V1)
CJ1W-SCU21(-V1)
CJ1W-SCU41(-V1)
C120-LK201-EV1
C200H-LK201-EV1
---
C200HW-COM02/04/
05/06-EV1
C500-LK201-EV1
C500-LK203
---
---
---
---
---
CQM1H-SCB41
Connectable to
CS1G
CS1H
CS1D
CJ1G
CJ1H
CJ1M
C1000H
C2000H
C200HS
C200HE
C200HE-Z
C200HG
C200HG-Z
C200HX
C200HX-Z
C200HS
C200HE
C200HE-Z
C200HG
C200HG-Z
C200HX
C200HX-Z
C1000H
C2000H
C1000H (F)
C2000H
CPM1
CPM2A
CPM2C
CQM1
CQM1H
47
Connecting to the RS-232C Port at the Host
Section 4-1
PLC
Series
CV
Series
(*4)
CVM1
Series
(*4)
Compo-
Bus/S
Master
Control
Unit
Units with Built-in Host Link
Function
CV500-CPU01-EV1
CV1000-CPU01-EV1
CV2000-CPU01-EV1
CPU Units Connectable with
Host Link Units or Expansion
Communications Board/Unit
CV500-CPU01-EV1
CV1000-CPU01-EV1
CV2000-CPU01-EV1
CVM1-CPU01-EV2
CVM1-CPU11-EV2
CVM1-CPU21-EV2
SRM1-C02-V1
CVM1-CPU01-EV2
CVM1-CPU11-EV2
CVM1-CPU21-EV2
---
Host Link Unit or
Communications
Board/Unit
CV500-LK201
CV500-LK201
---
Connectable to
CV500
CV1000
CV2000
CVM1
SRM1
*1
This CPU Unit is for a Duplex-CPU Unit System. The CS1W-SCB21/42(-V1) Serial Communications Board cannot be used.
*2
Use a CPM2C-CN111 or CS1W-CN114/118 Connecting Cable, CPM1-CIF01 RS-232C Adapter, or CPM1-
CIF11 RS-422A Adapter to connect.
*3
The CQM1H-CPU11 does not have a built-in RS-232C port, so connect to the peripheral port to the PT with a CS1W-CN118 Connecting Cable.
*4
CPU Units of CVM1/CV-series PLCs without the suffix -EV @ cannot be connected.
Settings at the Host
When using the host link method, the settings shown below must be made at the host (depending on the Unit, some of these settings may not be necessary, or settings not shown here may be necessary).
Item
I/O port
Communications speed
Transfer code
Parity
1-to-1/1-to-N
Instruction level
Unit #
Switch Setting
RS-232C
Set the same speed as for the NT31/NT31C.
(*1)
ASCII, 7 data bits, 2 stop bits
Even
1-to-N
(*2)
Level 1, 2, 3
00
*1
Set the host link communications speed at 9600 bps or 19200 bps with the
memory switch at the NT31/NT31C. For details, refer to 6-7-2 Setting the
*2
The 1-to-N setting enables BCC (Block Check Character). It is not actually possible to connect more than one NT31/NT31C in a single host link.
Connecting to a C-series
Host Link Unit
The setting methods for each type of Unit are described in the following.
C200H/C200HS/C200HE/HG/HX (-Z)E Rack-mounting Unit: C200H-LK201-
V1
Setting the Front Switches
Set each switch with a flat blade screwdriver so that the values or symbols in the setting value window agree with the following.
48
Connecting to the RS-232C Port at the Host
Section 4-1
LK201
RUN
RCV
XMT
ERROR
• Unit # (SW1, SW2)
Set these switches to 0.
SW1
0
SW3
5
0
SW2
2
SW4
• Instruction level, parity, and transfer code (SW4)
Set this switch to 2.
• Communications speed (SW3)
Set this switch to 5 to select 9600 bps.
Set this switch to 6 to select 19200 bps.
Setting the Rear Switches
• 1-to-1/1-to-N selection (DIP switch)
Set #3 to ON.
CTS selector switch
External
0 V (ON)
ON
1
2
3
4
• CTS selection (selector switch)
Set this always to 0 V (ON).
C1000H(F)/C2000H Rack-mounting Unit: 3G2A5-LK201-EV1
Setting the Front Switches
Local
Host
Mode control (key switch)
Set this to host link.
49
Connecting to the RS-232C Port at the Host
Setting the Rear Switches
I/O port
RS-422A
RS-232C
Synchronization
Internal
External
Terminator
OFF
ON
CTS
0 V
External
Section 4-1
• I/O port selection (selector switch)
Set this to RS-232C.
• Unit # (DIP SW1)
Set SW1-1 to SW1-5 to OFF (0).
ON
5
4
3
2
1
8
7
6
ON
5
4
3
2
1
8
7
6
SW1
SW2
• Synchronization (selector switch)
Set this to Internal.
• Communications speed
(DIP SW2-1 to SW2-4)
Set these switches to 0010 to select
19,200 bps.
Set these switches to 1010 to select
9,600 bps.
(0: OFF 1: ON)
• 1-to-1/1-to-N selection (DIP SW2-6)
Set SW2-6 to OFF (0) (1-to-N).
• Instruction level (DIP SW2-7, SW2-8)
Set these switches to ON (1).
(Levels 1, 2, and 3 are enabled.)
• CTS selection (selector switch)
Set this always to 0 V (ON).
50
Connecting to the RS-232C Port at the Host
Section 4-1
C1000H/C2000H Rack-mounting Unit: C500-LK203
Setting the Rear Switches
• I/O port selection (selector switch)
Set this to RS-232C.
5 V supply
ON
OFF
I/O port
RS-422A
RS-232C
Synchronization
Internal
External
Terminator
OFF
ON
CTS
0 V
External
ON
ON
8
7
6
5
4
3
2
1
5
4
3
2
1
8
7
6
SW1
SW2
• Unit #, parity, and transfer code
(DIP SW1-1 to SW1-7)
Set SW1-1 to SW1-7 to OFF (0).
• Synchronization (selector switch)
Set this to Internal.
• Communications speed
(DIP SW2-1 to SW2-4)
Set these switches to 0010 to select
19,200 bps.
Set these switches to 1010 to select
9,600 bps.
(0: OFF 1: ON)
• 1-to-1/1-to-N selection (DIP SW2-6)
Set SW2-6 to OFF (0) (1-to-N).
• Instruction level (DIP SW2-7, SW2-8)
Set these switches to ON (1).
(Levels 1, 2, and 3 are enabled.)
• CTS selection (selector switch)
Set this always to 0 V (ON).
51
Connecting to the RS-232C Port at the Host
Section 4-1
C200H/C1000H/C2000H CPU-mounting Unit: 3G2A6-LK201-EV1
Setting the Rear Switches
• Unit #, parity, and transfer code
(DIP SW1-1 to SW1-5)
Set SW1-1 to SW1-5 to OFF (0).
* Parity is fixed at Even Parity. Transfer code is fixed at ASCII 7 data bits and 2 stop bits.
Connecting to a CVM1/CV
Series Host Link Unit
• Communications speed (DIP SW2-1 to SW2-4)
Set these switches to 0010 to select 19,200 bps.
Set these switches to 1010 to select 9,600 bps.
(0: OFF 1: ON)
SW1
SW2
• 1-to-1/1-to-N selection (DIP SW2-6)
Set SW2-6 to OFF (0) (1-to-N).
SW3
• Instruction level (DIP SW2-7, SW2-8)
Set these switches to ON (1).
(Levels 1, 2, and 3 are enabled.)
• CTS selection (DIP SW3-1 and SW3-2)
Set SW3-1 to ON (1), and SW3-2 to OFF (0).
(Set this always to 0 V.)
• Synchronization (DIP SW3-3 to SW3-6)
Set SW3-3, and SW3-5 to ON (1), and SW3-4, and SW3-6 to OFF (0). (Set these to Internal.)
CVM1/CV-series Rack-mounting Unit: CV500-LK201
A CVM1/CV series Host Link Unit (CV500-LK201) has two connectors (communications ports 1 and 2). Either of these ports can be used for connection to an NT31/NT31C by the RS-232C method. However, since the connectors at these ports are of different types, a cable that matches the connector must be prepared.
• Communications port 1
Communications port 1 is a 25-pin connector for RS-232C use only.
• Communications port 2
Communications port 2 is a 9-pin connector which allows selection of the
RS-232C or RS-422A method. When this port is used with the RS-232C method, the I/O port selector switch on the front of the Unit must be set to
RS-232C (the upper position).
CPU Bus Unit Settings
When connecting to a CVM1/CV-series Host Link Unit, set the following communications conditions for the CPU Bus Unit settings.
Item
Communications speed
Transfer code
Parity
1-to-1, 1-to-N
Instruction level
Setting at Host
Set the same speed as set at the NT31/NT31C
(*1)
ASCII, 7 data bits, 2 stop bits
Even
1-to-N
(*2)
Level 1, 2, 3
52
Connecting to the RS-232C Port at the Host
Section 4-1
*1
Set the host link communications speed at 9600 bps or 19200 bps with the
memory switch at the NT31/NT31C. For details, refer to 6-7-2 Setting the
*2
The 1-to-N setting enables BCC (Block Check Character). It is not actually possible to connect more than one NT31/NT31C in a single host link.
Set the CPU Bus Unit settings directly from a Programming Device (e.g. SYS-
MAC support software).
For details on the CPU Bus Unit settings, refer to the SYSMAC CVM1/CV-
series Host Link Unit Operation Manual (W205-E1-
@).
Setting the Front Switches
Connecting to a CPU Unit
Communications port 1
(RS-232C)
Communications port 2
(RS-232C/RS-422A)
I/O port selector switch
RS-232C
RS-422A
• Unit # (SW3, SW4)
When using communications port 2, set these switches to 0.
• I/O port selection (selector switch)
Set this to RS-232C.
• CTS selection (DIP SW2 and SW3)
Set SW2 or SW3 to ON. (Set this always to 0 V.)
To use communications port 1, set SW2. To use communications port 2, set SW3.
• Communications condition setting (DIP SW1)
Set this switch to OFF.
Communication is executed in accordance with the
CPU bus unit system settings made at the PLC. The initial values for the system settings are as follows.
- Communications speed: 9600 bps
- Parity: Even
- Xon/Xoff control: Not executed
- Communications method: Full duplex
- Stop bits: 2 stop bits
- Data length: 7 bits
CV-series and CVM1/CV-series (-EV @) CPU Units
• CV500-CPU01-EV1/CV1000-CPU01-EV1/CV2000-CPU01-EV1
• CVM1-CPU01-EV2/CVM1-CPU11-EV2/CVM1-CPU21-EV2
PLC Setup
When connecting to a CVM1/CV-series CPU Unit, set the following communications conditions for the PLC Setup.
Item
Communications speed
Stop bit
Parity
Data length
Unit #
Setting at Host
Set the same speed as set at the NT31/NT31C
(*1)
2 stop bits
Even
ASCII 7 bits
00
Set the host link communications speed at 9600 bps or 19200 bps with the
memory switch at the NT31/NT31C. For details, refer to 6-7-2 Setting the Host
53
Connecting to the RS-232C Port at the Host
Section 4-1
Either set PLC Setup directly from a Programming Device (e.g. SYSMAC support software), or transmit the PLC Setup made at a Programming Device to the CPU Unit.
For details on the PLC Setup, refer to the SYSMAC CVM1/CV500/1000/2000
Operation Manual: Ladder Diagrams (W202-E1@).
Setting the Front Switches
• I/O port selection (selector switch)
Set this to RS-232C.
I/O port selector switch
RS-232C
RS-422A
• System setting (DIP SW4)
To effect the existing DIP switch settings, set SW4 to ON.
To effect the existing PLC Setup, set
SW4 to OFF.
Note
For CPUs manufactured before or during
June 1995 (lot No.
@@65), the existing
DIP switch settings differ from the existing PLC Setup as follows.
- DIP switch settings:
2,400 bps, 1 stop bit, even parity, 7 bit data length
- PLC Setup:
9,600 bps, 2 stop bits, even parity, 7 bit data length
For CPUs manufactured from July 1995 onward (lot No.
@@75), the stipulated values in the DIP switch settings also are
9,600 bps and 2 stop bits.
C-series C200HS, C200HX/HG/HE(-Z)E, CPM1, CPM2A, CPM2C, CQM1,
CQM1H CPU Units, SRM1
The connection method depends upon the model of PLC being used, as shown in the following table.
PLC model
C200HS, CQM1
Connection method
Connect to the CPU Unit’s built-in RS-232C port.
C200HX/HG/HE(-Z)E • Connect to the CPU Unit’s built-in RS-232C port.
• Connect to one of the RS-232C ports (port A or port B) on a
Serial Communications Board.
CQM1H • Connect to the CPU Unit’s built-in RS-232C port.
• Connect to the peripheral port through a CS1W-CN118
Connecting Cable.
• Connect to the RS-232C port (port 1) on a Serial Communications Board.
CPM1 • Connect to the peripheral port through a CPM1-CIF01 RS-
232C Adapter.
54
Connecting to the RS-232C Port at the Host
Section 4-1
PLC model
CPM2A, SRM1
CPM2C
Connection method
• Connect to the CPU Unit’s built-in RS-232C port.
• Connect to the peripheral port through a CPM1-CIF01 RS-
232C Adapter.
Connect to the CPU Unit’s RS-232C port or the peripheral port through a Connecting Cable (CPM2C-CN111, CS1W-
CN118, or CS1W-CN114).
(The CPM2C-CN111 splits the Unit’s Communications Port into a RS-232C port and a peripheral port. A CPM1-CIF01
RS-232C Adapter is also required to connect to this peripheral port.)
PLC Setup Area Settings
When connecting to a C200HS, C200HX/HG/HE(-Z)E, CPM1, CPM2A,
CPM2C, CQM1, or CQM1H, or SRM1, set the following communications conditions for the PLC Setup area.
Item
Communications mode
Communications speed
Stop bit
Parity
Data length
Unit #
Setting at Host
Host link mode
Set the same speed as set at the NT31/NT31C
(*1)
2 stop bits
Even
ASCII 7 bits
00
*1
Set the host link communications speed at 9600 bps or 19200 bps with the
memory switch at the NT31/NT31C. For details, refer to 6-7-2 Setting the
Set the PLC Setup area settings directly from a Programming Device (e.g. the
CX-Programmer support software).
For details on operations relating to the PLC Setup area, refer to the manual for the PLC which is used.
The PLC Setup area word numbers and settings to be made depending on the Unit and port to which the connection is made are shown below.
CPM2A, CPM2C, CQM1H, or SRM1: Peripheral port connection
Word # Writing Value
DM6650 0001
DM6651 0303
0304
DM6653 0000
Settings
Host link mode, no CTS control
Communications conditions set by the contents of DM
Data length 7 bits, 2 stop bits, even parity, communications speed: 9600 bps
Data length 7 bits, 2 stop bits, even parity, communications speed: 19200 bps
Unit # 00
C200HS, C200HX/HG/HE(-Z)E, CPM2A, CPM2C, CQM1, CQM1H (other than the CPU11), or SRM1: Built-in RS-232C port connection
Word # Writing Value
DM6645 0001
Settings
Host link mode, no CTS control
Communications conditions set by the contents of DM
55
Connecting to the RS-232C Port at the Host
Section 4-1
Word # Writing Value
DM6646 0303
DM6648
0304
0000
Settings
Data length 7 bits, 2 stop bits, even parity, communications speed: 9600 bps
Data length 7 bits, 2 stop bits, even parity, communications speed: 19200 bps
Unit # 00
C200HX/HG/HE(-Z)E: Serial Communications Board port A
CQM1H: Serial Communications Board port 1
Word # Writing Value
DM6555 0001
DM6556 0303
0304
DM6558 0000
Settings
Host link mode, no CTS control
Communications conditions set by the contents of DM
Data length 7 bits, 2 stop bits, even parity, communications speed: 9600 bps
Data length 7 bits, 2 stop bits, even parity, communications speed: 19200 bps
Unit # 00
C200HX/HG/HE(-Z)E: Serial Communications Board port B
Word # Writing Value
DM6550 0001
DM6551 0303
0304
DM6553 0000
Settings
Host link mode, no CTS control
Communications conditions set by the contents of DM
Data length 7 bits, 2 stop bits, even parity, communications speed: 9600 bps
Data length 7 bits, 2 stop bits, even parity, communications speed: 19200 bps
Unit # 00
CPM1: Peripheral port connection through a CPM1-CIF01 RS-232C Adapter
Word # Writing Value
DM6650 0001
DM6651 0303
0304
DM6653 0000
Settings
Host link mode
Communications conditions set by the contents of DM
Data length 7 bits, 2 stop bits, even parity, communications speed: 9600 bps
Data length 7 bits, 2 stop bits, even parity, communications speed: 19200 bps
Unit # 00
Connecting to a CPM2C
The CPM2C PLCs do not have the same kind of port connectors found on CS/
CJ-series PLCs. The CPM2C’s communications port handles both RS-232C and peripheral port connections which are divided internally. Therefore, when using the CPM2C, it is necessary to select RS-232C or peripheral port connections, according to the kind of cable and port (on the cable) used, as shown in the following table. Refer to the CPM2C Operation Manual for more details.
Port connecting to PT
RS-232C port (D-Sub 9-pin) of CPM2C-CN111
Peripheral port of CPM2C-CN111
RS-232C port (D-Sub 9-pin) of CS1W-CN118
Peripheral port of CS1W-CN114
PLC Setup
Built-in RS-232C port settings
Peripheral port settings
Built-in RS-232C port settings
Peripheral port settings
56
Connecting to the RS-232C Port at the Host
Peripheral port
CPM2C-CN111
CPM2C
CS1W-CN118
CPM2C
Section 4-1
CS1W-CN114
CPM2C
RS-232C port
(D-Sub 9-pin, female)
Peripheral port
RS-232C port
(D-Sub 9-pin, female)
Setting the DIP Switches of a C200HX/HG/HE(-Z)E, CQM1, or CQM1H
When using a C200HX/HG/HE(-Z)E, CQM1, or CQM1H, the DIP switches on the front panel must be set as shown below in order to make the settings in the PLC Setup area (data memory) effective.
C200HX/HG/HE(-Z)E
CQM1 CQM1H
RS-232C port communications condition setting
Set DIP SW5 to OFF to make the settings made in PLC Setup effective.
When using the CQM1H’s built-in peripheral port, turn ON SW7.
Setting the Switches of a CPM2A
When using a CPM2A, the switches on the front panel must be set as shown below in order to make the PLC Setup settings effective.
Set the Communications switch to OFF (down position).
57
Connecting to the RS-232C Port at the Host
Section 4-1
Setting the Switches of a CPM2C
When using a CPM2C, the switches on the front panel must be set as shown below in order to make the PLC Setup settings effective.
The settings for SW1 and SW2 depend upon the usage of the peripheral port and RS-232C port.
• Connecting PT to peripheral port
• Connecting PT to built-in RS-232C port
(A device that requires non-standard communications settings is connected to the peripheral port.)
SW1: OFF
SW2: ON
• Connecting PT to built-in RS-232C port
(A Programming Console is connected to the peripheral port.)
SW1: OFF
SW2: OFF
Setting the Switches on an RS-232C Adapter
When using a CPM1-CIF01 RS-232C Adapter, set the mode switch as shown in the following diagram.
CPM1-
CIF01
CPM1
Set the mode setting switch to HOST (upper position).
CS/CJ-series CPU Unit: CS1G/H-CPU @@-E(V1), CS1G/H/D-CPU@@H-E,
CJ1G/M-CPU @@, CJ1G/H-CPU@@H
Connect to the built-in RS-232C port of the CPU Unit, or the RS-232C port of the Communications Board. Note that the connection to a peripheral port must be made via an RS-232C Adapter (CS1W-CN118) specially designed for connecting to a peripheral port.
PLC Setup
When connecting to a CS/CJ-series CPU Unit, set the following communications conditions for the PLC Setup area. Since the settings shown below are the PLC default settings for the CPU Unit, no change to the PLC Setup is necessary as long as the communications speed is maintained at 9600 bps.
Item
Communications speed
Stop bits
Parity
Data length
Unit No. for the host link
Setting at Host
Set the same speed as set at the NT31/NT31C(*1)
2 stop bits
Even
ASCII 7 bits
00
*1
Set the host link communications speed at 9600 bps or 19200 bps with the
memory switch at the NT31/NT31C. For details, refer to 6-7-2 Setting the
Host Link Method (page 161). When the communications speed is set to
19200 bps, the PLC Setup of the CPU Unit need to be changed.
58
Connecting to the RS-232C Port at the Host
Section 4-1
Either set the PLC Setup directly from a Programming Device (Programming
Console), or transmit the PLC Setup made at a Programming Device (CX-
Programmer) to the CPU Unit.
For details on the PLC Setup, refer to the CS-series Operation Manual
(W339) or the SYSMAC CJ Series Operation Manual (W393).
Peripheral port
This is used mainly for connection to the
Programming Device.
(This also supports the
RS-232C unit connection.)
Using the CPU Unit’s Built-in RS-232C Port
160
Word #
8000
Writing Value
161
166
0000
0007
0000
Settings
Host link mode, data length 7 bits,
2 stop bits, even parity
Communications speed: 9600 bps.
Communications speed: 19200 bps.
Unit #00
Using the CPU Unit’s Peripheral Port
144
145
150
Word #
8000
Writing Value
0000
0007
0000
Settings
Host link mode, data length 7 bits,
2 stop bits, even parity
Communications speed: 9600 bps.
Communications speed: 19200 bps.
Unit #00
Setting the Front Switches
Set the CPU Unit’s DIP switches to 4 or 5 in accordance with the port NT31/
NT31C is connected to. An example of a CS-series CPU Unit is shown below.
RUN
ERR/ALM
INH
PRPHL/COMM
SYSMAC CS1G
PROGRAMMABLE CONTROLLER
CPU42
MCPWR
OPEN
OPEN
BUSY
DIP switches (inside the battery storage)
• Set SW4 to ON (establishing communications in accordance with PLC Setup) when connecting the
NT31/NT31C to the peripheral port.
• Set SW5 to OFF (establishing communications in accordance with PLC Setup) when connecting the
NT31/NT31C to the RS-232C port.
PERIPHERAL
RS-232 port
This is used mainly for connection to the RS-
232C unit.
(This also supports the
CX-Programmer.)
PORT
Connecting to CS-series Serial Communications Board
Serial Communications Board equipped with a RS-232C port for CS-series
CPU Units: CS1W-SCB21(-V1)/CS1W-SCB41(-V1) (See note.)
Note
Cannot be used with the CS1D-CPU65H/67H.
59
Connecting to the RS-232C Port at the Host
Section 4-1
Allocation DM Area Settings for CPU Unit
Settings are written from the Programming Device (a Programming Console or CX-Programmer) directly into the allocation DM area (system setting area) of the CPU Unit. After the settings are written, they become effective by turning the power ON, restarting the Unit, restarting the communications port, or execution of the STUP command.
In the following, the channel numbers of the allocation DM area and the settings are shown.
Allocation DM area (CH)
Port 1 Port 2
DM32000 DM32010
Writing Value
8000
Settings
DM32001
DM32002
DM32003
DM32011
DM32012
DM32013
0000
0007
0000
0000
Host link mode, 2 stop bits, even parity, data length 7 bits
Communications speed 9600 bps.
Communications speed 19200 bps.
Transmit delay time 0 ms.
No CTS control Unit No.0 for host link
Connecting to a CS/CJseries Serial
Communications Unit
CS/CJ-series Rack-mounting Unit:
CS1W-SCU21(-V1), CJ1W-SCU21(-V1), CJ1W-SCU41(-V1)
Setting the Front Switches
Set the unit number of the Serial Communications Unit by using the rotary switch located on the front panel. Set each switch with a flat blade screwdriver so that the values or symbols in the setting value window agree with the following.
SCU21
RUN
ERC
SD1
RD1
UNIT
No.
10
FE
RDY
ERH
SD2
RD2
Set the unit number to 0 through F so that it will not overlap with the numbers used in other units.
Allocation DM Area Settings for CPU Unit
Settings are written from the Programming Device (a Programming Console or CX-Programmer) directly into the allocation DM area (system setting area) of the CPU Unit. After the settings are written, they become effective by turning the power ON, restarting the Unit, restarting the communications port, or execution of the STUP command.
In the following, the channel numbers of the allocation DM area and the settings are shown.
m=DM30000+100
×unit # (CH) m
Allocation DM area (CH)
Port 1 Port 2
m+10
Writing Value
8000
Settings
m+1 m+2 m+3 m+11 m+12 m+13
0000
0007
0000
0000 host link mode, 2 stop bits, even parity, data length 7 bits
Communications speed 9600 bps.
Communications speed 19200 bps.
Transmit delay time 0 ms.
No CTS control Unit No.0 for host link
60
Connecting to the RS-232C Port at the Host
When Using the NT Link
(1:1) Method
Section 4-1
Compatible Host Units
Some models and series of OMRON PLCs have the NT link (1:1) function built in. With CQM1H PLCs, a Serial Communications Board can be added to provide 1:1 NT Link communications. Some C200HX/HG/HE(-Z)E CPU Units can be connected by the NT link (1:1) method by installing a Communications
Board.
Check the model and series of the PLC against the type of CPU Unit before making the connections.
The Units that can be connected to the NT31/NT31C by the NT link (1:1) method using the RS-232C ports of both Units are indicated in the table below.
PLC Series
C series
CPU Units with Built-in
NT Link Function
CPU Units Connectable with Expansion Communications Board
(*1)
---
Connectable to
C200HS C200HS-CPU21-E, -EC
C200HS-CPU23-E
C200HS-CPU31-E
C200HS-CPU33-E
C200HE-CPU42-(Z)E C200HE (-Z)E
C200HG-CPU43-(Z)E
C200HG-CPU63-(Z)E
C200HX-CPU44-(Z)E
C200HX-CPU64-(Z)E
X200HX-CPU65-ZE
C200HX-CPU85-ZE
C200HE-CPU32-(Z)E
C200HE-CPU42-(Z)E
C200HG-CPU33-(Z)E
C200HG-CPU43-(Z)E
C200HG-CPU53-(Z)E
C200HG-CPU63-(Z)E
C200HX-CPU34-(Z)E
C200HX-CPU44-(Z)E
C200HX-CPU54-(Z)E
C200HX-CPU64-(Z)E
C200HX-CPU65-ZE
C200HX-CPU85-ZE
---
C200HG (-Z)E
C200HX (-Z)E
CPM1
CV series
(*5)
CVM1 series
(*5)
CompoBus/S
Master Control
Unit
CPM1-10CDR@
(*2)
CPM1-20CDR@
(*2)
CPM1-30CDR@
(*2)
CPM1A-10CD
@-@
(*2)
CPM1A-20CD @-@
(*2)
CPM1A-30CD @-@
(*2)
CPM1A-40CD @-@
(*2)
CPM2A-30CD @@-@
CPM2A-40CD @@-@
CPM2A-60CD @@-@
CPM2C-10 @@@@@@-@
(*3)
CPM2C-20 @@@@@@-@
(*3)
CQM1-CPU41-EV1
CQM1-CPU42-EV1
CQM1-CPU43-EV1
CQM1-CPU44-EV1
CQM1-CPU45-EV1
CQM1H-CPU21-E
CQM1H-CPU51-E
CQM1H-CPU61-E
CV500-CPU01-EV1
CV1000-CPU01-EV1
CV2000-CPU01-EV1
CVM1-CPU01-EV2
CVM1-CPU11-EV2
CVM1-CPU21-EV2
SRM1-C02-V1
---
---
---
CQM1H-CPU51
(*4)
CQM1H-CPU61
(*4)
---
---
---
---
---
CPM2A
CPM2C
CQM1
CQM1H
CV500
CV1000
CV2000
CVM1
SRM1
61
Connecting to the RS-232C Port at the Host
Reference:
Section 4-1
*1
One of the following Communications Boards is required: C200HW-
COM02/COM04/COM05/COM06-EV1.
*2
A CPM1-CIF01 adapter is required.
*3
Use a CPM2C-CN111 or CS1W-CN114/118 Connecting Cable, CPM1-
CIF01 RS-232C Adapter, or CPM1-CIF11 RS-422A Adapter to connect.
*4
A CQM1H-SCB41 Serial Communications Board is required.
*5
CPU Units of CVM1/CV series PLCs without the suffix -EV @ cannot be connected.
CS/CJ-series CPU Unit cannot be connected with the 1:1 connection NT link method. Use the 1:N connection NT link method (standard or high-speed) instead to make the 1:1 connection. For details, refer to Using the NT Link (1:N)
Method (page 64) or Using the High-speed NT Link (1:N) Method (page 69).
Settings at The Host
The setting methods for each Unit are as follows:
Connecting to a C-series C200HS, C200HX/HG/HE(-Z)E, CPM1, CPM2A,
CPM2C, CQM1, CQM1H, or SRM1
PLC Setup Area Settings
Write the PLC Setup area (data memory) settings directly from a Programming Device (e.g. SYSMAC support software) in accordance with the host model and port.
Word #
DM6645
Host Model
RS-232C port of C200HS, C200HX/
HG/HE(-Z)E, CPM2A, CPM2C,
CQM1, CQM1H, SRM1
Port A of C200HX/HG/HE(-Z)E
(*1)
Port 1 of CQM1H
(*2)
Port B of C200HX/HG/HE(-Z)E
(*1)
CPM1
DM6555
DM6550
DM6650
Writing Value
4000
Setting
Use NT link
(1:1)
*1
RS-232C port of the Communications Board
*2
RS-232C port of the Serial Communications Board
For details on operations relating to the PLC Setup area, refer to the manual for the PLC which is used.
Connecting to a CPM2C
The CPM2C PLCs do not have the same kind of port connectors found on CS/
CJ-series PLCs. The CPM2C’s communications port handles both RS-232C and peripheral port connections which are divided internally. Therefore, when using the CPM2C, it is necessary to select RS-232C or peripheral port connections, according to the kind of cable and port (on the cable) used, as shown in the following table. Refer to the CPM2C Operation Manual for more details.
Port connecting to PT PLC Setup
RS-232C port (D-Sub 9-pin) of CPM2C-CN111 Built-in RS-232C port settings
Peripheral port of CPM2C-CN111 Peripheral port settings
RS-232C port (D-Sub 9-pin) of CS1W-CN118
Peripheral port of CS1W-CN114
Built-in RS-232C port settings
Peripheral port settings
62
Connecting to the RS-232C Port at the Host
Section 4-1
Peripheral port
CPM2C-CN111
CPM2C
CS1W-CN118
CPM2C
CS1W-CN114
CPM2C
RS-232C port
(D-Sub 9-pin, female)
Peripheral port
RS-232C port
(D-Sub 9-pin, female)
Setting the DIP Switches on the Front of a C200HX/HG/HE(-Z)E, CQM1,
CQM1H
When using a C200HX/HG/HE(-Z)E, CQM1, or CQM1H, the DIP switches on the front panel must be set as shown below in order to make the settings in the PLC Setup area (data memory) effective.
C200HX/HG/HE(-Z)E
CQM1 CQM1H
RS-232C port communications condition setting Set DIP SW5 to OFF to make the settings made in PLC Setup effective.
Setting the Switches of a CPM2A
When using a CPM2A, the switches on the front panel must be set as shown below in order to make the PLC Setup settings effective.
Set the Communications switch to OFF (down position).
Setting the Switches of a CPM2C
When using a CPM2C, the switches on the front panel must be set as shown below in order to make the PLC Setup settings effective.
63
Connecting to the RS-232C Port at the Host
Section 4-1
The settings for SW1 and SW2 depend upon the usage of the peripheral port and RS-232C port.
• Connecting PT to peripheral port
• Connecting PT to built-in RS-232C port
(A device that requires non-standard communications settings is connected to the peripheral port.)
SW1: OFF
SW2: ON
• Connecting PT to built-in RS-232C port
(A Programming Console is connected to the peripheral port.)
SW1: OFF
SW2: OFF
Setting the Switches on an RS-232C Adapter
When using a CPM1-CIF01 RS-232C Adapter, set the mode switch as shown in the following diagram.
CPM1-
CIF01
Set the mode setting switch to NT (lower position).
Connecting to CVM1/CV Series (-EV @)
Set the DIP switches on the front panel as follows.
I/O port selection (selector switch)
Set this to RS-232C.
DIP switch setting (SW3)
4
3
2
1
6
5
ON
OFF ON
Set SW3 to use NT link
(ON, right side).
Using the NT Link (1:N)
Method
When using the CVM1/CV series, CPU Unit execution processing (execution control 2) in the PLC Setup must be set to Simultaneous processing.
Compatible Host Units
The only OMRON PLCs that can be connected using the NT link (1:N) method are the CS/CJ-series CPU Units and the C-series C200HX/HG/HE(-
Z)E, CQM1H, and SRM1. With the CS/CJ-series PLCs, it is also possible to connect a 1:N NT Link using a Serial Communications Board (CS Series only) or Serial Communications Unit.
64
Connecting to the RS-232C Port at the Host
Section 4-1
Check the model and series of the PLC as well as the model of Serial Communications Board or Unit being used before making the connections.
The Units that can be connected to the NT31/NT31C by the NT link (1:N) method using the RS-232C ports of both Units are indicated in the table below.
PLC Series
CS series
CJ series
C series
CompoBus/
S Master
Control Unit
CPU Units with Built-in
NT Link Function
CS1G-CPU42/43/44/45-
E(V1)
CS1H-CPU63/64/65/66/67-
E(V1)
CS1G-CPU42H/43H/44H/
45H
CS1H-CPU63H/64H/65H/
66H/67H
CS1D-CPU65H/67H
CJ1G-CPU44/45
CJ1G-CPU42H/43H/44H/
45H
CJ1H-CPU65H/66H/67H
CJ1M-CPU11/12/13/21/22/
23
C200HE-CPU42-(Z)E
C200HG-CPU43-(Z)E
C200HG-CPU63-(Z)E
C200HX-CPU44-(Z)E
C200HX-CPU64-(Z)E
C200HX-CPU65-ZE
C200HX-CPU85-ZE
---
SRM1-C02-V2
CPU Units Connectable with
Communications Board or
Unit
(*1)
Connectable to
CS1G-CPU42/43/44/45-
E(V1)
(*1)
CS1H-CPU63/64/65/66/67-
E(V1)
(*1)
CS1G-CPU42H/43H/44H/
45H
(*1)
CS1H-CPU63H/64H/65H/66H/
67H
(*1)
CS1D-CPU65H/67H
(*2)
CS1G
CS1H
CS1D
CJ1G
CJ1H
CJ1M
CJ1G-CPU44/45
(*3)
CJ1G-CPU42H/43H/44H/
45H
(*3)
CJ1H-CPU65H/66H/67H
(*3)
CJ1M-CPU11/12/13/21/22/
23
(*3)
C200HE-CPU32-(Z)E
(*4)
C200HE-CPU42-(Z)E
(*4)
C200HG-CPU33-(Z)E
(*4)
C200HG-CPU43-(Z)E
(*4)
C200HG-CPU53-(Z)E
(*4)
C200HG-CPU63-(Z)E
(*4)
C200HX-CPU34-(Z)E
(*4)
C200HX-CPU44-(Z)E
(*4)
C200HX-CPU54-(Z)E
(*4)
C200HX-CPU64-(Z)E
(*4)
C200HX-CPU65-ZE
(*4)
C200HX-CPU85-ZE
(*4)
CQM1H-CPU51
(*5)
CQM1H-CPU61
(*5)
---
C200H
E (-Z)E
C200H
G (-Z)E
C200H
X (-Z)E
CQM1H
SRM1
*1
A CS1W-SCB21(-V1) or CS1W-SCB41(-V1) Serial Communications Board or CS1W-SCU21(-V1) Serial Communications Unit is required.
*2
A CS1W-SCU21(-V1) Serial Communications Unit is required. A CS1W-
SCB21(-V1) or CS1W-SCB41(-V1) Serial Communications Board cannot be used.
*3
A CJ1W-SCU21(-V1) or CJ1W-SCU41(-V1) Serial Communications Unit is required.
65
Connecting to the RS-232C Port at the Host
Section 4-1
Reference:
*4
One of the following Communications Boards is required:
C200HW-COM02/COM04/COM05/COM06-E(V1)
*5
A CQM1H-SCB41 Serial Communications Board is required.
With version 1 (-V1) and high-speed versions (H) of the CS-series CPU Units and any versions of the CJ-series CPU Units, the high-speed 1:N NT Link method can be used as well as the standard 1:N NT Link method. Furthermore, the high-speed 1:N NT Link can be used in earlier versions of CS-series CPU
Units (pre-version-1 and non-high-speed) by installing a new version of a Serial
Communications Board or Unit. For details, refer to Using the High-speed NT
Settings at the Host
The Settings required for each Unit are described below.
■
Connecting a C-series C200HX/HG/HE(-Z)E, CQM1H, or SRM1
PLC Setup Area Settings
Write the PLC Setup area (data memory) settings directly from a Programming Device (e.g. SYSMAC support software) in accordance with the host model and port.
Setting Connection to
C200HX/HG/HE(-Z)E, SRM1
Built-in RS-232C port
C200HX/HG/HE(-Z)E
Communications Board port A
*1
CQM1H port 1
*2
C200HX/HG/HE(-Z)E
Communications Board port B
*1
Word # Writing
Value
DM6645 5 @00
DM6555
DM6550
Use NT link (1:N)
@ = highest unit number of the connected PTs (1 to 7)
(*3)
*1
RS-232C port on the Communications Board
*2
RS-232C port on the Serial Communications Board
*3
When using a C200HE (-Z)E, the maximum PT unit number is 3.
Refer to the PLC’s operation manual for details on changing PLC Setup settings.
Setting the DIP Switches of a C200HX/HG/HE(-Z)E
When using a C200HX/HG/HE(-Z)E, the DIP switches on the front panel must be set as shown below in order to make the settings in the PLC Setup area
(data memory) effective.
RS-232C port communications condition setting
Set DIP SW5 to OFF to make the settings made in PLC Setup effective.
Connecting to CS/CJ-series CPU Units
CS/CJ-series CPU Unit: CS1G/H-CPU @@-E(V1), CS1G/H/D-CPU@@H-E,
CJ1G/M-CPU @@, CJ1G/H-CPU@@H
The PT is connected to the built-in RS-232C port on the CPU Unit. It can also be connected to the peripheral port on the CPU Unit, but a CS1W-CN118
Peripheral Port Connecting Cable must be used.
66
Connecting to the RS-232C Port at the Host
Section 4-1
Connect to the built-in RS-232C port on the CPU Unit or to an RS-232C port on a Communications Board. A special Peripheral Port Connecting Cable
(CS1W-CN118) can be used to connect to the peripheral port.
PLC Setup
When connecting to a CS/CJ-series CPU Unit, set the following communications conditions for the PLC Setup, in accordance with the communications port to be used.
Using the CPU Unit’s Built-in RS-232C Port
160
161
Word #
166
Writing Value
8200
0000 to 0009
(*1)
000 @
Settings
NT link (1:N) mode
Communications baud rate (standard)
@ = The largest model number of the connected PT (0 – 7)
*1
Set any value between 0000 and 0009 Hex for the communications baud rate. The same baud rate will be used regardless of the value as long as it is between 0000 and 0009 Hex.
Using the CPU Unit’s Peripheral Port
144
Word #
145
150
Writing Value
8200
0000 to 0009
(*1)
000
@
NT link (1:N) mode
Settings
Communications baud rate (standard)
@ = The largest model number of the connected PT (0 – 7)
*1
Set any value between 0000 and 0009 Hex for the communications baud rate. The same baud rate will be used regardless of the value as long as it is between 0000 and 0009 Hex.
When connecting PT with its model number 0, 2-5 to the built-in RS-232C port, for example, set the value 8200 Hex to 160 CH, and 0005 Hex to 166CH.
Either set PLC Setup directly from a Programming Device (Programming Console), or transmit the PLC Setup made at a Programming Device (CX-Programmer) to the CPU Unit.
For details on the PLC Setup, refer to the CS-series Operation Manual
(W339) or the SYSMAC CJ Series Operation Manual (W393).
Setting the Front Switches
Set the CPU Unit’s DIP switch to 4 or 5 in accordance with the port NT31/
NT31C is connected to. An example of a CS-series CPU Unit is shown below.
67
Connecting to the RS-232C Port at the Host
Section 4-1
Peripheral port
This is used mainly for connection to the
Programming Device.
(This also supports the RS-
232C unit connection.)
RS-232 port
This is used mainly for connection to the
RS-232C unit.
(This also supports the CX-Programmer.)
RUN
ERR/ALM
INH
PRPHL/COMM
SYSMAC CS1G
PROGRAMMABLE CONTROLLER
CPU42
MCPWR
OPEN
OPEN
BUSY
PERIPHERAL
DIP switches (inside the battery storage)
• Set SW4 to ON (establishing communications in accordance with PLC Setup) when connecting the NT31/NT31C to the peripheral port.
• Set SW5 to OFF (establishing communications in accordance with PLC Setup) when connecting the NT31/NT31C to the RS-232C port.
PORT
Connecting to CS-series Serial Communications Board
Serial Communications Board equipped with a RS-232C port for CS-series
CPU Units: CS1W-SCB21(-V1), CS1W-SCB41(-V1) (See note.)
Note
Cannot be used with the CS1D-CPU65H/CPU67H.
CPU Unit Allocation DM Area Settings
Setting is written from the Programming Device (a Programming Console or
CX-Programmer) directly into the allocation DM area (system setting area) of the CPU Unit. After the setting is written, it becomes effective by turning the power ON, restarting the Unit, restarting the communications port, or execution of the STUP command.
In the following, the channel numbers of the allocation DM area and settings are shown.
Setting Contents Allocated DM Area words
Port 1 Port 2
DM32000
DM32001
DM32010
DM32011
Setting
8200
0000 to 0009
(*1)
DM32006 DM32016 000 @
NT link (1:N) mode
Communications baud rate (standard)
@ = The largest model number of the connected PT (0 – 7)
*1
Set any value between 0000 and 0009 Hex for the communications baud rate. The same baud rate will be used regardless of the value as long as it is between 0000 and 0009 Hex.
When connecting PTs with model numbers 3 to 6 to port 1, for example, set the value 8200 Hex to DM32000, 0000 Hex to DM32001, and 0006 Hex to
DM32006.
Connecting to CS/CJ-series Serial Communications Unit
CS/CJ-series Rack-mounting Unit: CS1W-SCU21(-V1), CJ1W-SCU21(-V1),
CJ1W-SCU41(-V1)
68
Connecting to the RS-232C Port at the Host
Using the High-speed NT
Link (1:N) Method
Section 4-1
Setting the Front Switches
Set the unit number of the Serial Communications Unit by using the rotary switch located on the front panel. Set each switch with a flat blade screwdriver so that the values or symbols in the setting value window agree with the following.
SCU21
RUN
ERC
SD1
RD1
UNIT
No.
10
32
5
6
7 8
FE
C
9
A
RDY
ERH
SD2
RD2
Set the unit number to 0 through F so that it will not overlap with the numbers used in other units.
Allocation DM Area Settings for CPU Unit
Setting is written from the Programming Device (a Programming Console or
CX-Programmer) directly into the allocation DM area (system setting area) of the CPU Unit. After the setting is written, it becomes effective by turning the power ON, restarting the Unit, restarting the communications port, or execution of the STUP command.
In the following, the channel numbers of the allocation DM area and settings are shown.
m=DM30000+100*unit number (CH)
Setting Contents Allocated DM Area words
Port 1 Port 2
m m+1 m+10 m+11
Setting
8200
0000 to 0009
(*1) m+6 m+16 000 @
NT link (1:N) mode
Communications baud rate (standard)
@ = The largest model number of the connected PT (0 – 7)
*1
Set any value between 0000 and 0009 Hex for the communications baud rate. The same baud rate will be used regardless of the value as long as it is between 0000 and 0009 Hex.
Compatible Host Units
The high-speed 1:N NT Link method can be used with version 1 (-V1) and high-speed versions (H) of the CS-series CPU Units and any versions of the
CJ-series CPU Units. Furthermore, the high-speed 1:N NT Link method can be used with earlier versions of CS-series CPU Units by installing the latest version of a Serial Communications Board or Serial Communications Unit.
(CJ-series PLCs can also be connected to a high-speed 1:N NT Link through a Serial Communication Unit.)
Be sure to check the model number of the PLC and Serial Communications
Board/Unit before trying to establish the high-speed 1:N NT Link.
69
Connecting to the RS-232C Port at the Host
Section 4-1
The following table shows which CS-series PLCs can be connected to an
NT31/NT31C with the high-speed 1:N NT Link.
PLC Series
CS series
CJ series
CPU Units with Built-in
NT Link Function
CS1G-CPU42/43/44/45-
EV1
(*1)
CS1H-CPU63/64/65/66/67-
EV1
(*1)
CS1G-CPU42H/43H/44H/45H
CS1H-CPU63H/64H/65H/66H/
67H
CS1D-CPU65H/67H
CJ1G-CPU44/45
CJ1G-CPU42H/43H/44H/45H
CJ1H-CPU65H/66H/67H
CJ1M-CPU11/12/13/21/22/23
CPU Units Connectable with
Communications Board or Unit
(*1)
CS1G-CPU42/43/44/45-E(V1)
(*2)
CS1H-CPU63/64/65/66/67-E(V1)
CS1G-CPU42H/43H/44H/45H
CS1H-CPU63H/64H/65H/66H/
67H
(*2)
CS1D-CPU65H/67H
(*3)
(*2)
CJ1G-CPU44/45
(*4)
CJ1G-CPU42H/43H/44H/45H
(*4)
CJ1H-CPU65H/66H/67H
(*4)
CJ1M-CPU11/12/13/21/22/23
(*4)
(*2)
Connectable to
CS1G
CS1H
CS1D
CJ1G
CJ1H
CJ1M
*1
The high-speed 1:N NT Link is not supported for a direct connection to the
CPU Unit of a CS-series CPU Unit without the -V1 suffix.
*2
A CS1W-SCB21 or CS1W-SCB41(-V1) Serial Communications Board or
CS1W-SCU21(-V1) Serial Communications Unit is required.
*3
A CS1W-SCU21(-V1) Serial Communications Unit is required. A CS1W-
SCB21/41(-V1) Serial Communications Board cannot be used.
*4
One of the following Communications Units is required:
CJ1W-SCU21/41(-V1)
Settings at the Host
The Settings required for each Unit are described below.
■
Connecting CS/CJ-series CPU Units
CS/CJ-series CPU Unit: CS1G/H-CPU @@-EV1, CS1G/H/D-CPU@@H,
CJ1G/M-CPU @@, CJ1G/H-CPU@@H
Connect to the built-in RS-232C port on the CPU Unit. A special Peripheral
Port Connecting Cable (CS1W-CN118) can be used to connect to the peripheral port.
PLC Setup
When connecting to a CS/CJ-series CPU Unit, set the following communications conditions for the PLC Setup area, in accordance with the communications port to be used.
Using the CPU Unit’s Built-in RS-232C Port
160
Word #
161
166
Writing Value
8200
000A
000 @
NT link (1:N) mode
Settings
Communications baud rate (high-speed)
@ = The largest model number of the connected PT (0 – 7)
Using the CPU Unit’s Peripheral Port
144
145
150
Word # Writing Value
8200
000A
000 @
NT link (1:N) mode
Settings
Communications baud rate (high-speed)
@ = The largest model number of the connected PT (0 – 7)
70
Connecting to the RS-232C Port at the Host
Reference:
Section 4-1
When connecting PTs with model numbers 0, 2, 3, 4, and 5 to the built-in RS-
232C port, for example, set the value 8200 Hex to word 160, 000A Hex to word 161, and 0005 Hex to word 166.
Either set PLC Setup directly from a Programming Device (Programming Console), or transmit the PLC Setup made at a Programming Device (CX-Programmer) to the CPU Unit.
For details on the PLC Setup, refer to the CS-series Operation Manual
(W339) or the SYSMAC CJ Series Operation Manual (W393).
When using the CX-Programmer to set the high-speed 1:N NT Link, set the communications baud rate to 115,200 bps.
Setting the Front Switches
Set the CPU Unit’s DIP switch to 4 or 5 in accordance with the port NT31/
NT31C is connected to. An example of a CS-series CPU Unit is shown below.
Peripheral port
This is used mainly for connection to the
Programming Device.
(This also supports connection of RS-232C devices.)
RS-232 port
This is used mainly for connection of RS-
232C devices.
(This also supports the connection of
CX-Programmer.)
RUN
ERR/ALM
INH
PRPHL/COMM
SYSMAC CS1G
PROGRAMMABLE CONTROLLER
CPU42
MCPWR
OPEN
OPEN
BUSY
PERIPHERAL
DIP switches (inside the battery storage)
• Set SW4 to ON (establishing communications in accordance with PLC Setup) when connecting the NT31/NT31C to the peripheral port.
• Set SW5 to OFF (establishing communications in accordance with PLC Setup) when connecting the NT31/NT31C to the RS-232C port.
PORT
Reference:
Connecting to a CS-series Serial Communications Board
Serial Communications Board equipped with a RS-232C port for CS-series
CPU Units: CS1W-SCB21(-V1)/CS1W-SCB41(-V1)
Note
Cannot be used with the CS1D-CPU65H/67H.
CS-series Serial Communications Boards and Units with lot number 991220
(December 20, 1999) or later support the high-speed 1:N NT Link method.
Boards and Units with earlier lot numbers cannot be used.
CPU Unit Allocation DM Area Settings
Setting is written from the Programming Device (a Programming Console or
CX-Programmer) directly into the allocation DM area (system setting area) of the CPU Unit. After the setting is written, it becomes effective by turning the power ON, restarting the Unit, restarting the communications port, or execution of the STUP command.
In the following, the channel numbers of the allocation DM area and settings are shown.
Allocated DM Area words Setting
Port 1 Port 2
DM32000 DM32010 8200
Setting Contents
NT link (1:N) mode
71
Connecting to the RS-232C Port at the Host
Section 4-1
When Using the Memory
Link Method
Reference:
Allocated DM Area words Setting
Port 1 Port 2
DM32001
DM32006
DM32011
DM32016
000A
000 @
Setting Contents
Communications baud rate (high-speed)
@ = The largest model number of the connected PT (0 – 7)
For example, when connecting PTs with model numbers 3, 4, 5, and 6 to port
1, set the value 8200 Hex to DM32000, 000A Hex to DM32001, and 0006 Hex to DM32006.
Connecting to a CS/CJ-series Serial Communications Unit
A CS/CJ-series Rack-mounting Unit:CS1W-SCU21(-V1)
CJ1W-SCU21(-V1)/41(-V1)
CS-series Serial Communications Boards and Units with lot number 991220
(December 20, 1999) or later support the high-speed 1:N NT Link method.
Boards and Units with earlier lot numbers cannot be used.
Setting the Front Switches
Set the unit number of the Serial Communications Unit by using the rotary switch located on the front panel. Set each switch with a flat blade screwdriver so that the values or symbols in the setting value window agree with the following.
SCU21
RUN
ERC
SD1
RD1
UNIT
No.
10
32
5
6
7 8
FE
C
9
A
RDY
ERH
SD2
RD2
Set the unit number to 0 through F so that it will not overlap with the numbers used in other units.
Allocation DM Area Settings for CPU Unit
Setting is written from the Programming Device (a Programming Console or
CX-Programmer) directly into the allocation DM area (system setting area) of the CPU Unit. After the setting is written, it becomes effective by turning the power ON, restarting the Unit, restarting the communications port, or execution of the STUP command.
In the following, the channel numbers of the allocation DM area and settings are shown.
Word m = DM30000 + (100
× unit number)
Setting Contents Allocated DM Area words Setting
Port 1 Port 2
m m+1 m+6 m+10 m+11 m+16
8200
000A
000 @
NT link (1:N) mode
Communications baud rate (high-speed)
@ = The largest model number of the connected PT (0 – 7)
In the memory link method, the connection can be made to a personal computer with RS-232 and an FA computer, etc.
When connecting to the host in the memory link method, it is necessary to create a program for the memory link at the host side.
72
Connecting to the RS-232C Port at the Host
Section 4-1
The following are the communications conditions that can be used in the memory link method. For the host (a personal computer, an FA computer, etc.), its setting should be compatible to one of the communications conditions listed in the following table. Set the same communications conditions at
the NT31/NT31C by the memory switch. (page 166).
Item
Input/Output port
Communications speed
Data bits length
Stop bits length
Parity
Flow control
Settings at the host
RS-232C
1200, 2400, 4800, 9600, 19200, 38400 bps.
7 bits, 8 bits
1 bits, 2 bits
None, even, odd
None, RS/CS, XON/XOFF
4-1-2 Connecting Directly between RS-232C Ports
The method for connection between the RS-232C ports of the NT31/NT31C and the host is described here.
NT31/NT31C
Host link unit/CPU
SYSMAC
CS/CJ-series PLC
C-series PLC,
CVM1/CV-series
PLC, SRM1
9-pin connector or 25-pin connector
Serial port A (RS-232C, 9-pin type)
Serial port B (RS-232C, 25-pin type)
9-pin connector
Cable with RS-232C connectors
Recommended Connector Cable
When making the connector cable, as far as possible use the recommended connectors, connector hoods, and cables indicated in the table below. Some
Units come supplied with one connector and one connector hood.
Check the required components and prepare them in advance.
Name Model
Connector XM2A-0901
XM24-2501
DB-25P
Remarks
9-pin
Made by OMRON
25-pin
Made by OMRON
25-pin
Made by JAE
Delivered with
CS-series CS1G/CS1H/
CS1D
CJ-series CJ1G/CJ1H/
CJ1M
C-series CQM1, C200HS,
C200HX/HG/HE(-Z)E,
CVM1/CV-series CPU
Units
CV500-LK201
C500-LK203
CV500-LK201
C200H-LK201-EV1
3G2A5-LK201-EV1
3G2A6-LK201-EV1
73
Connecting to the RS-232C Port at the Host
Section 4-1
Note
Note
Name
Connector hood
Cable
Model
XM2S-0911 9-pin
Remarks
Made by OMRON
Delivered with
C-series CQM1, C200HS,
C200HX/HG/HE-(Z)E,
CVM1/CV-series CPU
Units
CV500-LK201
XM2S-0913
XM2S-0911-E
XM2S-2511
DB-C2-J9
AWG28
×5P
IFVV-SB
CO-MA-VV-SB
5P
×28AWG
9-pin
Made by OMRON
9-pin
Made by OMRON
25-pin
Made by OMRON
25-pin
Made by JAE
Multi-core shielded cable
Made by Fujikura, Ltd.
Multi-core shielded cable
Made by Hitachi Cable,
Ltd.
CS-series CS1G/CS1H/
CS1D
CJ-series CJ1G/CJ1H/
CJ1M
C500-LK203
CV500-LK201
C200H-LK201-EV1
3G2A5-LK201-EV1
3G2A6-LK201-EV1
After connecting a communications cable, always secure it with the screws.
OMRON Cables with Connectors
When a connection is made at serial port A in other than the memory link method, OMRON cables with connectors shown below are available.
Model
XW2Z-200S
XW2Z-500S
XW2Z-200T
XW2Z-500T
2 m
5 m
2 m
5 m
Cable Length Connector Specification
9-pin
⇔ 25 pin
9-pin
⇔ 9-pin
When a connection is made to a personal computer at serial port A in the memory link method, OMRON cable with connectors shown below are available.
Model
CV500-CN228 2 m
Cable Length
XW2Z-S002 2 m
Connector Specification
9-pin
⇔ 25 pin
9-pin
⇔ 9 pin
When a connection is made at serial port B in other than the memory link method, OMRON cables with connectors shown are available.
Model
XW2Z-200P
XW2Z-500P
XW2Z-200S
XW2Z-500S
2 m
5 m
2 m
5 m
Cable Length Connector Specification
25-pin
⇔ 25 pin
25-pin
⇔ 9-pin
The cable’s tensile load is 30 N. Do not subject it to loads greater than this.
74
Connecting to the RS-232C Port at the Host
Wiring for a Host Link Unit
(25-pin) Connection
1
5
Section 4-1
Applicable Units:C200H-LK201-EV1
3G2A5-LK201-EV1
C500-LK203
3G2A6-LK201-EV1
CV500-LK201 (communications port 1)
Cables with connectors that can be used at serial port A:
XW2Z-200S (9-pin
⇔ 25-pin, 2 m)
XW2Z-500S (9-pin
⇔ 25-pin, 5 m)
Cables with connectors that can be used at serial port B:
XW2Z-200P (25-pin
⇔ 25-pin, 2 m)
XW2Z-500P (25-pin
⇔ 25-pin, 5 m)
CVM1/CV-series Host Link Units (CV500-LK201) have two types of connector; a 25-pin connector (communications port 1), and a 9-pin connector (communications port 2). When using communications port 2, refer to Wiring for
Other Connections (Other Than the Memory Link Method) (page 76).
Serial Port A
1 14
6
9
NT31/NT31C
RS-232C interface
Abbreviation
FG
SD
RD
Pin number
Connector hood
1
2
RS
CS
+5V
3
4
5
5G
8
9
6
7
(9-pin type)
Shielding wire
*
PLC (host link unit)
Pin number
1
2
6
7
8
-
3
4
5
-
Abbreviation
FG
SD
RD
RS
CS
-
5G
-
-
-
RS-232C interface
-
-
-
ER
(25-pin type)
13 25
* For Units that have a CTS setting selector switch, RS and CS do not have to be shorted if this switch is set to 0 V.
1
13
Serial Port B
14
25
NT31/NT31C
RS-232C/
422A/485 interface
Abbreviation
FG
-
Pin number
Connector hood
1
SD
2
RD
RS
CS
3
4
5
-
SG
-
TRM
RDB (+)
SDB (+)
6
7
8
9
10
11
-
-
-
SDA (-)
RDA (-)
-
12
13
14
15
16
-
RSB (+)
RSA (-)
-
-
23
24
25
(25-pin type)
PLC (host link unit)
Shielding wire
*
Pin number
1
2
3
4
5
8
-
-
6
7
-
-
20
Abbreviation
FG
SD
RD
RS
CS
-
SG
-
-
-
RS-232C interface
-
-
ER
(25-pin type)
1
13
14
25
75
Connecting to the RS-232C Port at the Host
Section 4-1
* For Units that have a CTS setting selector switch, RS and CS do not have to be shorted if this switch is set to 0 V.
Wiring for Other
Connections
Applicable Units:
CV500-LK201 (communications port 2)
CS1W-SCU21(-V1)
CJ1W-SCU21(-V1)
CPM1-10CDR@
CPM1A-10CD @-@
CPM1A-30CD @-@
CPM2A-30CD @-@
CJ1W-SCU41(-V1)
CPM1-20CDR@
CPM1A-20CD
CPM1A-40CD @-@
CPM2A-40CD
@-@
@-@
CPM2A-60CD @-@
CPM2C-10 @@@@@@-@
CQM1-CPU21-E
CQM1-CPU41-EV1
CPM2C-20 @@@@@@-@
CQM1-CPU43-EV1
CQM1H-CPU11
CQM1H-CPU51
CS1G-CPU42/43/44/45-E(V1)
CQM1-CPU42-EV1
CQM1-CPU44-EV1
CQM1H-CPU21
CQM1H-CPU61
CS1H-CPU63/64/65/66/67-E(V1)
CS1G-CPU42H/43H/44H/45H
CS1H-CPU63H/64H/65H/66H/67H
CS1D-CPU65H/67H
CJ1G-CPU44/45
CJ1G-CPU42H/43H/44H/45H
CJ1H-CPU65H/66H/67H
CJ1M-CPU11/12/13/21/22/23
C200HS-CPU21-E, -EC
C200HS-CPU31-E
C200HE-CPU32-(Z)E
C200HG-CPU33-(Z)E
C200HG-CPU53-(Z)E
C200HX-CPU34-(Z)E
C200HX-CPU54-(Z)E
C200HX-CPU65-ZE
CV500-CPU01-EV1
CV2000-CPU01-EV1
CVM1-CPU01-EV2
CVM1-CPU21-EV2
SRM1-C02-V2
C200HS-CPU23-E
C200HS-CPU33-E
C200HE-CPU42-(Z)E
C200HG-CPU43-(Z)E
C200HG-CPU63-(Z)E
C200HX-CPU44-(Z)E
C200HX-CPU64-(Z)E
C200HX-CPU85-ZE
CV1000-CPU01-EV1
CVM1-CPU11-EV2
Cables with connectors that can be used at serial port A:
XW2Z-200T (9-pin
⇔ 9-pin, 2 m)
XW2Z-500T (9-pin
⇔ 9-pin, 5 m)
Cables with connectors that can be used at serial port B:
XW2Z-200S (25-pin
⇔ 9-pin, 2 m)
XW2Z-500S (25-pin
⇔ 9-pin, 5 m)
CPU Units of CVM1/CV-series PLCs without the suffix -EV @ cannot be connected by any connection method.
When connecting to the peripheral port of a CS/CJ-series CPU Unit, a CS1W-
CN118 Connecting Cable is required in addition to the above cables.
76
Connecting to the RS-232C Port at the Host
1
5
1
13
Wiring for a Memory Link
Connection
Section 4-1
Serial Port A
6
9
NT31/NT31C
RS-232C interface
Abbreviation
FG
-
Pin number
Connector hood
1
SD
RD
2
RS
CS
+5V
3
4
5
-
6
7
-
SG
8
9
(9-pin type)
Shielding wire
*
PLC (Host link unit)
Pin number
1
2
3
4
5
8
9
6
7
Abbreviation
FG
SD
RD
RS-232C interface RS
CS
+5V
DSR
ER
SG
(9-pin type)
1
5
6
9
Serial Port B
14
25
NT31/NT31C
Abbreviation
FG
-
Pin number
Connector hood
1
2
SD
RD
RS
CS
3
4
5
RS-232C/
422A/485 interface
-
SG
-
TRM
RDB (+)
SDB (+)
-
-
-
SDA (-)
RDA (-)
-
12
13
14
15
16
9
10
11
6
7
8
-
RSB (+)
RSA (-)
-
-
23
24
25
(25-pin type)
Shielding wire
*
PLC (Host link unit)
Pin number
Connector hood
1
Abbreviation
FG
-
2
SD
3
4
5
RD
RS
6
7
CS
-
8
9
-
-
SG
RS-232C interface
(9-pin type)
1
5
6
9
* In case 0 V is set for a Unit which has CTS setting selector, it is not necessary to shorten between RS and CS.
Cables with connectors that can be used at serial port A:
CV500-CN228 (9-pin
⇔25-pin, 2 m)
XW2Z-S002 (9-pin
⇔9-pin, 2 m)
Serial Port A
Prepare the adapter cable while referring to the following diagram.
1
5
6
9
NT31/NT31C
Abbreviation
FG
−
Pin number
Connector hood
1
RS-232C interface
SD
RD
RS
2
3
4
CS
+5V
−
−
SG
7
8
9
5
6
(9-pin type)
PLC (Host link unit)
Shielding wire
Abbreviation
Connector hood
SD
RS-232C interface
RD
RS
CS
SG
Serial Port B
Prepare the adapter cable while referring to the following diagram.
77
Connecting to the RS-232C Port at the Host
1
13
14
25
Section 4-1
NT31/NT31C
RS-232C/
422A/485 interface
Abbreviation
FG
Pin number
Connector hood
-
1
SD
2
RD
RS
CS
3
4
5
-
SG
-
6
7
TRM
RDB (+)
SDB (+)
8
9
10
11
12
-
-
-
SDA (-)
RDA (-)
-
13
14
15
16
-
RSB (+)
RSA (-)
-
-
23
24
25
(25-pin type)
PLC (Host link unit)
Shielding wire
Abbreviation
Connector hood
SD
RD
RS-232C interface
RS
CS
SG
78
SECTION 5
Connecting to the Host from the RS-422A/485 Port
This section describes the method for connecting to the host using the RS-422A/485 port of the PT.
5-1 Connecting to the Host’s RS-232C Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1-1 The Type of Host and Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1-2 1:1 Connection between RS-422A/485 at the PT and
RS-232C at the Host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1-3 1:N Connection between RS-422A/485 at the PT and
RS-232C at the Host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1-4 Recommended Connectors, Cables, and Crimp Terminals . . . . . . .
5-1-5 Setting the Terminal Resistance for RS-422A/485 Communications
5-2 Connecting to the Host’s RS-422A/485 Port . . . . . . . . . . . . . . . . . . . . . . . . .
5-2-1 Host Types and Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2-2 Direct Connection between RS-422A Ports at Both Units . . . . . . .
5-2-3 Direct Connection between RS-485 Ports at Both Units . . . . . . . . .
5-2-4 1:N Connection among RS-422A Ports . . . . . . . . . . . . . . . . . . . . . .
5-2-5 1:N Connection among RS-485 Ports . . . . . . . . . . . . . . . . . . . . . . .
5-2-6 Recommended Connectors, Cables and Crimp Terminals. . . . . . . .
5-2-7 Setting the Terminal Resistance for RS-422A/485 Communications
5-2-8 Handling the Shield on RS-422A/485 Cables . . . . . . . . . . . . . . . . .
79
Connecting to the Host’s RS-232C Port
Section 5-1
5-1 Connecting to the Host’s RS-232C Port
The methods for connecting the RS-422A/485 port of the NT31/NT31C and the RS-232C port of the host are described here. There are the following methods.
The following discussion is focused on the connection method to OMRON
PLCs (By using the memory link method, a connection can be made to any arbitrary RS-232 unit). When making a connection to a host other than
OMRON PLCs, refer to the PLC Connection Manual (V042-E1-
@) or NT31/
631 Multi Vendor Connection Manual (V060-E1-
@).
• Method in which the RS-422A port of the NT31/NT31C and the RS-232C port of the host are connected in a 1:1 connection via an RS-232C/RS-
When this method is used, the cable length can be extended up to
500 m.
PT
RS-232C/RS-422A convertor unit
RS-422A cable
(max. 500 m)
RS-232C cable
(max. 2 m)
Host
• Method in which the RS-485 port of the NT31/NT31C and the RS-232C port of the host are connected in a 1:1 connection via an RS-232C/RS-
When this method is used, the cable length can be extended up to
500 m. This connection method can be used only with the NT link
(1:N) method of type RS-485.
PT
RS-232C/RS-422A convertor unit
Host
RS-485 cable
(max. 500 m)
RS-232C cable
(max. 2 m)
• Method in which the RS-422A ports of multiple NT31/NT31Cs and the
RS-232C port of the host are connected in a 1:N connection via an RS-
232C/RS-422A Adapter (page 86).
This connection method is used with the RS-422A type NT link (1:N) method.
PT RS-232C/RS422A convertor unit
Host
RS-422A cable
(max. total length
500 m)
RS-232C cable
(max. 2 m)
• Method in which the RS-485 ports of multiple NT31/NT31Cs and the RS-
232C port of the host are connected in a 1:N connection via an RS-232C/
This connection method is used with the RS-485 type NT link (1:N) method (standard or high-speed).
80
Connecting to the Host’s RS-232C Port
Section 5-1
PT
RS-232C/RS422A convertor unit
RS-485 cable
(max. total length
500 m)
RS-232C cable
(max. 2 m)
Host
Note
One end of the wire must always be connected to the host (PLC), and there must be no branching. Branching will cause problems such as transmission delays and communications failures.
Reference:
PLC (At termination)
Relay terminal block
NT31C
(Not at termination)
Max. 2 m
NT31
(Not at
NT31 termination) (Not at termination)
NT31
(At termination)
Example of Good Connection
NT31
PLC
NT31C NT31 NT31
PLC
Relay terminal block
NT31C NT31
Examples of Bad Connections
CS/CJ-series CPU Units cannot be connected with the 1:1 connection NT link method. Use the 1:N connection NT Link method (standard or high-speed) instead to make the 1:1 connection. For details, refer to Using the NT link (1:N)
method (page 64) or Using the High-speed NT link (1:N) method (page 69).
5-1-1 The Type of Host and Settings
The using condition is the same as the connecting PT side RS-232C and the host side RS-232C.
For the available type and settings of the host, refer to the pages listed below.
Method
Host link
NT link (1:1)
NT link (1:N)
Reference
NT Link (1:1) method (page 61)
Using the NT Link (1:N) Method (page 64)
High-speed NT link (1:N)
Using the High-speed NT Link (1:N) Method (page 69)
Memory link
Settings at the RS-232C/
RS-422A Adapter (NT-
AL001)
When making a connection between RS-232C and RS-422A/485 ports using an RS-232C/RS-422A Adapter, set the DIP switches on the NT-AL001 as follows.
81
Connecting to the Host’s RS-232C Port
Section 5-1
Example: the terminal resistor is active,
RS-422A, NT link (1:N).
ON
1 2 3 4 5 6
NT-AL001
Built-in terminal resistor setting (DIP SW1-2)
If at the end of the RS-422A/485 cable, set this switch to
ON (to activate the built-in terminal resistor).
If not at the end of the RS-422A/485 cable, set this switch to OFF (to inactivate the built-in terminal resistor).
2-wire type/4-wire type selection (DIP SW1-3, SW1-4)
For RS-422A, set both of these switches to OFF (4-wire type).
For RS-485, set both of these switches to ON (2-wire type).
Selection of RS-422A/485 send mode (DIP SW1-5, SW1-6)
For host link or NT link (1:1), set both of these switches to
OFF. (Always send)
For NT link (1:N), set SW1-5 to OFF and SW1-6 to ON.
(Sends when CS is H)
Note
Read the manual supplied with the NT-AL001 carefully before using the Unit.
5-1-2 1:1 Connection between RS-422A/485 at the PT and RS-232C at the Host
The connection method in which the RS-422A/485 port of an NT31/NT31C and the RS-232C port of a host are connected via an Adapter is described here.
An RS-232C/RS-422A Adapter (NT-AL001) is used to convert between the
RS-232C and RS-422A communications methods.
Host link unit/CPU
NT31/NT31C
Serial port B
(RS-422A/485,
25-pin type)
SYSMAC
CS/CJ-series PLC,
C-series PLC,
CVM1/CV-series PLC,
SRM1
25-pin connector
RS-232C/RS-422A convertor unit
(NT-AL001)
9-pin connector or
25-pin connector
Reference:
RS-422A/485 cable
(max. length: 500 m)
RS-422A terminal block
RS-232C cable with connectors
9-pin connector
When using RS-485 as a port for the NT31/NT31C, only NT link (1:N) method
(standard or high-speed) can be used.
82
Connecting to the Host’s RS-232C Port
Section 5-1
Connecting an NT31/NT31C and NT-AL001 (RS-422A)
NT31/NT31C
RS-422A
NT-AL001
Host
1
13
14
25
NT31/NT31C side
Abbreviation
FG
−
Pin number
Connector hood
1
Shielding wire
RS-232C/
422A/485 connector
SD
RD
RS
CS
−
SG
−
−
TRM
RDB (+)
SDB (+)
−
−
−
SDA (-)
RDA (-)
−
−
RSB (+)
−
23
RSA (-)
−
(25-pin type)
24
25
9
10
11
6
7
8
12
13
14
15
16
2
3
4
5
NT-AL001 side
Pin number Abbreviation
6 RDA
5
4
3
1
RDB
SDA
SDB
Functional ground
RS-422A terminal block
3
1
7
5
For details on handling shield wires, refer to 5-2-8 Handling the Shield on RS-
4
2
8
6
Connecting an NT31/NT31C and NT-AL001 (RS-485)
NT31/NT31C
Host
NT-AL001
RS-485
1
13
Reference:
14
25
NT31/NT31C side
Abbreviation Pin number
FG
Connector hood
−
1
SD
RS-232C/
422A/485 connector
RD
RS
CS
−
SG
−
2
3
4
5
−
TRM
RDB (+)
SDB (+)
−
−
−
SDA (-)
RDA (-)
−
−
RSB (+)
14
15
16
9
10
11
12
13
6
7
8
−
23
RSA (-)
−
24
25
(25-pin type)
Shielding wire
NT-AL001 side
Pin number Abbreviation
6
RDA
5
4
3
1
RDB
SDA
SDB
Functional ground
RS-422A terminal block
3
1
7
5
For details on handling shield wires, refer to 5-2-8 Handling the Shield on RS-
When using RS-485 as a port for the NT31/NT31C, only NT link (1:N) method
(standard or high-speed) can be used.
4
2
8
6
83
Connecting to the Host’s RS-232C Port
Connecting an NT-AL001 and Host
NT31/NT31C
1
5
Section 5-1
Host
NT-AL001
RS-232C
Wiring When Connecting a Host Link Unit (25-pin)
Applicable Units:
C200H-LK201-V1
3G2A5-LK201-EV1
C500-LK203
3G2A6-LK201-EV1
CV500-LK201 (communications port 1)
CVM1/CV-series Host Link Unit (CV500-LK201) has two types of connector: a
25-pin connector (communications port 1), and a 9-pin connector (communications port 2). When using the communications port, refer to Wiring for Con-
nections other than Memory Link (page 84).
6
NT-AL001 side
RS-232C connector
Abbreviation Pin number
FG
Connector hood
−
1
SD
2
RD
RS
CS
3
4
5
+5V
−
−
SG
6
7
8
9
(9-pin type)
Shielding wire
PLC (host link unit) side
6
7
8
−
−
−
Abbreviation
Pin number
1
FG
2
3
FG
4
5
SD
RD
RS
RS-232C connector
CS
−
SG
−
−
−
1
14
9
−
20
−
ER
(25-pin type)
13
Wiring for Connections Other Than Memory Link
Applicable Units:
CV500-LK201 (communications port 2)
CS1W-SCU21(-V1)
CJ1W-SCU21(-V1)
CPM1-10CDR@
CJ1W-SCU41(-V1)
CPM1-20CDR@
CPM1A-10CD
CPM1A-30CD
CPM2A-30CD
@-@
@-@
@@-@
CPM2A-60CD @@-@
CPM2C-10 @@@@@@-@
CQM1-CPU21-E
CQM1-CPU41/42/43/44-EV1
CQM1H-CPU11/21/51/61
CPM1A-20CD @-@
CPM1A-40CD @-@
CPM2A-40CD @@-@
CPM2C-20 @@@@@@-@
CS1G-CPU42/43/44/45-E(V1)
CS1H-CPU63/64/65/66/67-E(V1)
CS1G-CPU42H/43H/44H/45H
CS1H-CPU63H/64H/65H/66H/67H
CS1D-CPU65H/67H
25
84
Connecting to the Host’s RS-232C Port
Section 5-1
CJ1G-CPU44/45
CJ1G-CPU42H/43H/44H/45H
CJ1H-CPU65H/66H/67H
CJ1M-CPU11/12/13/21/22/23
C200HS-CPU21/23/31/33
C200HE-CPU32/42-(Z)E
C200HG-CPU33/43/53/63-(Z)E
C200HX-CPU34/44/54/64-(Z)E
C200HX-CPU65-ZE
CV500-CPU01-EV1
CV2000-CPU01-EV1
CVM1-CPU01-EV2
CVM1-CPU21-EV2
SRM1-C02-V2
C200HX-CPU85-ZE
CV1000-CPU01-EV1
CVM1-CPU11-EV2
1
5
Usable Cables with Attached Connectors:
• For host link and 1:1 NT Link only (+5 V power wire attached)
SJ45007-102(9-pin to 9-pin, 0.7 m)
SSJ45007-202(9-pin to 9-pin, 2 m)
• For host link, 1:1 NT Link, or 1:N NT Link (+5 V power supplied from PLC)
XW2Z-070T-1(9-pin to 9-pin, 0.7 m)
XW2Z-200T-1(9-pin to 9-pin, 2 m)
SJ46006-102(9-pin to 9-pin, 1 m)
SSJ46006-202(9-pin to 9-pin, 2 m)
CVM1/CV-series CPU Units whose model names do not have the suffix -EV @ cannot be connected by any connection method.
When connecting to the peripheral port of a CS/CJ-series CPU Unit, a CS1W-
CN118 Connecting Cable is required in addition to the above cables. (Supply power to the +5 V output of the NT-AL001 from an external power supply when using this method.)
6
9
NT-AL001 side
Abbreviation Pin number
FG
Connector hood
−
1
PLC side
Pin number
Abbreviation
Connector hood
1
FG
−
1
6
SD
2
2
SD
RS-232C connector
RD 3
3 RD
RS-232C connector
RS
4 4 RS
CS
5
5
CS
+5V
−
6
7
6
7
(+5V)
−
−
−
8
8
SG
9 9 SG
(9-pin type)
Shielding wire
(9-pin type)
When there is no +5 V output at the PLC side
5
9
When using host link or NT link (1:1)
When there is +5 V output at the PLC side When using NT link (1:N)
• When using the host link or NT link (1:1) method, short the RS and CS terminals at the PLC side with each other (leave the RS and CS terminals at the NT-AL001 side open).
• When using the NT link (1:N), cross-connect the RS and CS terminals at the NT-AL001 and PLC sides.
If there is +5 V output at the PLC side, no external power supply is required for the NT-AL001.
85
Connecting to the Host’s RS-232C Port
Section 5-1
Wiring for a Memory Link Connection
Prepare the adapter cable while referring to the diagram shown below.
1
5
6
9
NT-AL001 side
Abbreviation Pin number
FG
−
Connector hood
1
SD
2
RS-232C connector RD
RS
CS
+5V
−
−
7
8
5
6
3
4
9
SG
(9-pin type)
Shielding wire
No +5 V output is at the host side
Host side
Abbreviation
Connector hood
SD
RD
RS
CS
RS-232C connector
(+5V)
SG
A +5 V output is present at the host side
Since it is necessary to input a voltage of +5 V to the number 6 pin of NT-
AL001, supplying a voltage of 5 V from the host or an external voltage supply for NT-AL001 is required.
5-1-3 1:N Connection between RS-422A/485 at the PT and RS-232C at the Host
The connection method in which the RS-422A/485 ports of multiple NT31/
NT31Cs are connected to the RS-232C port of one host in a 1:N connection is described here.
An RS-232C/RS-422A Adapter (NT-AL001) is used to convert between the
RS-232C and RS-422A/485 communications methods.
Host Link Unit/CPU Unit
NT31/NT31C
Serial port B
(RS-422A/485,
25-pin type)
25-pin connector
RS-232C/RS-422A convertor unit
(NT-AL001)
Relay terminal block
Max. 2 m
RS-422A terminal block
RS-232C cable with connectors
9-pin connector
CS/CJ-series PLC,
C200HX/HG/HE(-Z)E
9-pin connector
RS-422A/485 cable
(max. total length: 500 m)
86
Connecting to the Host’s RS-232C Port
Connecting an NT31/
NT31C and NT-AL001 (RS-
422A)
Section 5-1
The relay terminal board is not included in the figure below. Insert a relay terminal board so as to achieve the wiring configuration indicated below.
NT31/NT31C
Host
NT-AL001
RS-422A
1
13
14
25
NT31/NT31C side
Abbreviation Pin number
FG
−
Connector hood
1
SD
RD
2
3
RS-232C/
422A/485 connector
RS
CS
−
SG
−
TRM
−
RDB (+)
9
10
7
8
4
5
6
RDB (+)
−
−
−
SDA (-)
RDA (-)
11
12
13
14
15
16
Shielding wire
NT-AL001 side
Pin number Abbreviation
6 RDA
5
4
3
1
RDB
SDA
SDB
Functional ground
RS-422A terminal block
3
1
7
5
−
−
RSB (+)
RSA (-)
(25-pin type)
−
23
24
25
Next PT
For details on handling shield wires, refer to 5-2-8 Handling the Shield on RS-
8
6
4
2
87
Connecting to the Host’s RS-232C Port
Connecting an NT31/
NT31C and NT-AL001 (RS-
485)
Section 5-1
The relay terminal board is not included in the figure below. Insert a relay terminal board so as to achieve the wiring configuration indicated below.
NT31/NT31C
Host
NT-AL001
RS-485
1
13
14
25
NT31/NT31C side
RS-232C/
422A/485 connector
Abbreviation Pin number
FG
−
Connector hood
1
SD
RD
2
3
RS
CS
−
SG
−
−
TRM
RDB (+)
4
5
6
7
8
9
10
RDB (+)
−
−
−
SDA (-)
RDA (-)
11
12
13
14
15
16
Shielding wire
NT-AL001 side
Pin number Abbreviation
6 RDA
5
4
3
1
RDB
SDA
SDB
Functional ground
RS-422A terminal block
7
5
3
1
−
−
RSB (+)
RSA (-)
(25-pin type)
−
23
24
25
Next PT
For details on handling shield wires, refer to 5-2-8 Handling the Shield on RS-
8
6
4
2
88
Connecting to the Host’s RS-232C Port
Connection between
NT31/NT31C Units (RS-
422A)
Section 5-1
The relay terminal board is not included in the figure below. Insert a relay terminal board so as to achieve the wiring configuration indicated below.
NT31/NT31C
Host
NT-AL001
1
13
RS-422A
∗
14
25
NT31/NT31C side
RS-232C/
422A/485 connector
Abbreviation Pin number
FG
−
Connector hood
1
SD
RD
2
3
RS
CS
−
SG
−
−
TRM
RDB (+)
4
5
6
7
8
9
10
RDB (+)
−
−
−
SDA (-)
11
12
13
14
RDA (-)
15
16
Shielding wire
∗
NT31/NT31C side
Pin number
Abbreviation
Connector hood
FG
1
−
2
3
SD
RD
4
5
6
RS
CS
−
RS-232C/
422A/485 connector
−
9
10
7
8
11
12
13
14
SG
−
TRM
RDB (+)
RDB (+)
−
−
−
15
16
SDA (-)
RDA (-)
1
13
14
25
−
−
RSB (+)
RSA (-)
(25-pin type)
−
23
24
25
− −
23
24
25
−
RSB (+)
RSA (-)
(25-pin type)
*2
Make the connection between pin numbers 9 and 10 at the terminal NT31/
NT31C (marked
* in the figure above) only.
For details on handling shield wires, refer to 5-2-8 Handling the Shield on RS-
89
Connecting to the Host’s RS-232C Port
Connection between
NT31/NT31C Units (RS-
485)
Section 5-1
The relay terminal board is not included in the figure below. Insert a relay terminal board so as to achieve the wiring configuration indicated below.
NT31/NT31C
Host
1
13
RS-485
∗
14
25
NT31/NT31C side
RS-232C/
422A/485 connector
Abbreviation Pin number
FG
−
Connector hood
1
SD
RD
2
3
RS
CS
−
SG
−
−
TRM
RDB (+)
RDB (+)
−
−
−
SDA (-)
RDA (-)
4
5
6
7
8
9
10
11
12
13
14
15
16
Shielding wire
∗
NT31/NT31C side
Pin number Abbreviation
Connector hood
1
FG
−
2
3
SD
RD
4
5
6
RS
CS
−
RS-232C/
422A/485 connector
7
8
SG
−
−
9
10
TRM
RDB (+)
11
12
13
14
15
16
RDB (+)
−
−
−
SDA (-)
RDA (-)
1
13
14
25
−
−
RSB (+)
RSA (-)
(25-pin type)
−
23
24
25
− −
23
24
25
−
RSB (+)
RSA (-)
(25-pin type)
*2
Make the connection pin numbers 9 and 10 at the terminal NT31/NT31C
(marked
* in the figure above).
For details on handling shield wires, refer to 5-2-8 Handling the Shield on RS-
90
Connecting to the Host’s RS-232C Port
Connecting an NT-AL001 and Host
NT31/NT31C
NT-AL001
RS-232C
Host
Section 5-1
1
5
Wiring when connecting a CS-series Serial Communications Board, CS/CSseries Serial Communications Unit, CQM1H Serial Communications Board, or
C-series C200HX/HG/HE(-Z)E Communications Board.
Applicable PLCs:
CS1W-SCU21(-V1)
CJ1W-SCU21(-V1)/CJ1W-SCU41(-V1)
CS1G-CPU42/43/44/45-E(V1)
CS1H-CPU63/64/65/66/67-E(V1)
CS1G-CPU42H/43H/44H/45H
CS1H-CPU63H/64H/65H/66H/67H
CS1D-CPU65H/67H
CJ1G-CPU44/45
CJ1G-CPU42H/43H/44H/45H
CJ1H-CPU65H/66H/67H
CJ1M-CPU11/12/13/21/22/23
CQM1H-CPU51/61
C200HE-CPU32/42-(Z)E
C200HG-CPU33/43/53/63-(Z)E
C200HX-CPU34/44/54/64-(Z)E
C200HX-CPU65-ZE/85-ZE
Note
A Serial Communications Board cannot be used.
Usable Cables with Attached Connectors:
• For host link, 1:1 NT Link, or 1:N NT Link (+5 V power supplied from PLC)
XW2Z-070T-1(9-pin to 9-pin, 0.7 m)
XW2Z-200T-1(9-pin to 9-pin, 2 m)
SJ46006-102(9-pin to 9-pin, 1 m)
SSJ46006-202(9-pin to 9-pin, 2 m)
6 NT-AL001 side
Abbreviation Pin number
FG
−
Connector hood
1
SD
2
RS-232C connector
RD
RS
CS
+5V
−
−
7
8
5
6
3
4
9
SG
(9-pin type)
Shielding wire
PLC side
Pin number
Abbreviation
Connector hood
1
FG
−
2
SD
3
4
RD
RS
RS-232C connector
5
6
7
8
CS
+5V
−
−
9
SG
(9-pin type)
1
6
9
5
9
Since the CS1G/H, CQM1H, and C200HX/HG/HE(-Z)E have a +5 V output, no external power supply is required for the NT-AL001.
91
Connecting to the Host’s RS-232C Port
Section 5-1
5-1-4 Recommended Connectors, Cables, and Crimp Terminals
Connectors and Cables Recommended for RS-232C
When making an RS-232C connecting cable, as far as possible use the recommended parts indicated in the table below. Some Units come supplied with one connector and connector hood.
Check the required parts and prepare them in advance.
Name
Connector
Connector hood
Cable
Model
XM2A-0901
Remarks
9-pin type
Made by OMRON
Delivered with
CS/CJ-series CPU Units,
C-series CQM1, C200HS,
C200HX/HG/HE(-Z)E
CVM1/CV-series CPU
Units
CV500-LK201
XM2A-2501
DB-25P
25-pin type
Made by OMRON
C500-LK203
3G2A5-LK201-EV1
C200H-LK201-V1
3G2A5-LK201-EV1
3G2A6-LK201-EV1
XM2S-0911 9-pin type
Made by OMRON
CS/CJ-series CPU Units,
C200HS,
C200HX/HG/HE(-Z)E
CVM1/CV-series CPU
Units
XM2S-0913 Made by OMRON 9-pin
CV500-LK201
---
XM2S-0911-E Made by OMRON 9-pin CS/CJ-series CS1G/CS1H
XM2S-2511
25-pin type
Made by JAE
25-pin type
Made by OMRON
DB-C2-J9
AWG28
×5P
IFVV-SB
CO-MA-VV-SB
5P
×28AWG
25-pin type
Made by JAE
Multi-core shielded cable
Made by Fujikura, Ltd.
Multi-core shielded cable
Made by Hitachi, Ltd.
C500-LK203
3G2A5-LK201-EV1
C200H-LK201-V1
3G2A5-LK201-EV1
3G2A6-LK201-EV1
---
---
Note
Cables with Connectors Made by OMRON
When connecting an NT-AL001 and a PLC, use the OMRON cables with connectors indicated in the table below.
Model Cable Length
XW2Z-070T-1 0.7 m
XW2Z-200T-1 2 m
Connector Specification
9-pin
⇔ 9-pin
Host link, NT link (1:1), NT link (1:N)
+5 V power supplied from PLC
(Use when the PLC has a +5 V output.)
(1) The maximum tensile load of the recommended cable is 30 N. Do not exceed this load.
(2) After connecting a connecting cable, always tighten the connector screws.
92
Connecting to the Host’s RS-232C Port
Note
Section 5-1
Recommended connectors, cables and crimp terminals for RS-422A/485
When making an RS-422A/485 connecting cable, as far as possible use the recommended parts indicated in the table below. Some Units come supplied with one connector and connector hood.
Check the required parts and prepare them in advance.
Name
Connector
Connector hood
Cable
Crimp terminals
Model
XM2A-2501
DB-25P F-N
Maker
25-pin type
Made by OMRON
25-pin type
Made by JAE
Remarks
Delivered with the following Units:
C500-LK203
Delivered with the following Units:
3G2A6-LK201-EV1
3G2A5-LK201-EV1
XM2S-2511
DB-C2-J9
25-pin type
Made by OMRON
25-pin type
Made by JAE
Delivered with the following Units:
C500-LK203
Delivered with the following Units:
3G2A6-LK201-EV1
3G2A5-LK201-EV1
TKVVBS4P-03 Tachii Electric Wire
Co., Ltd.
1.25-N3A
(fork type)
Japan Solderless
Terminal MFG
Y1.25-3.5L
(fork type)
Molex Inc.
Recommended cable size:
AWG22 to 18
(0.3 to 0.75 mm
2
)
The terminal screws of the NT-AL001 are M3 specification. When wiring, use crimp terminals for M3 use. Tighten terminal screws with a tightening torque of 0.5 N
⋅m.
Always use crimp terminals for wiring.
Examples of applicable terminals
Fork type
Round type
6.2 mm max.
6.2 mm max.
5-1-5 Setting the Terminal Resistance for RS-422A/485
Communications
The serial port B connector of the NT31/NT31C has a terminal resistance setting terminal (TRM).
In RS-422A/485 communications, a terminal resistor must be set at the device at the end of the communications cable, but not at any other device.
The NT31/NT31C has a built-in terminal resistor, and whether or not the terminal resistance is applied is set by the wiring at the terminal resistance setting terminals (pins No. 9 and 10 of serial port B). The terminal resistance is
120
Ω. When carrying out RS-422A/485 communications using serial port B, short between terminals No. 9 and 10 at the NT31/NT31C at the end of the
RS-422A/485 cable. Leave terminals No. 9 and 10 open at NT31/NT31C PTs other than the one at the end of the cable.
When not using RS-422A/485 communications, the terminal resistance setting is ineffective.
In order to set the terminal resistance, wiring work is required at the cable’s connector: carry out the wiring correctly by referring to Appendix E Making the
Cable.
93
Connecting to the Host’s RS-422A/485 Port
Section 5-2
Abbreviation
-
FG
Pin number
Connector
hood
-
-
-
-
TRM 9
RDB (+)
SDB (+)
-
10
11
12
-
-
-
25
Terminal resistor setting
Note
Reference:
Pin Nos. 9 and 10
Shorted
Open
Function
Terminal resistance is applied.
Short only at the NT31/NT31C connected to the end of an RS-
422A/485 cable.
Terminal resistance is not applied.
Leave the terminals open when connecting an NT31/NT31C anywhere other than at the end of the RS-422A/485 cable.
Before connecting or disconnecting cables between devices, make sure that the power supply to all of the connected devices (NT31/NT31C, PLC, etc.) is
OFF.
• The internal circuit of the NT31/NT31C is shown below.
+
−
10 (RDB)
16 (RDA)
Terminal resistor (120
Ω)
9 (TRM)
Making a connection here inserts a terminator between + (RDB) and - (RDA).
• For details on setting the terminal resistance of NT-AL001-E, refer to Set-
tings at the RS-232C/RS-422A Adapter (NT-AL001-E) (page 81).
5-2 Connecting to the Host’s RS-422A/485 Port
The methods for connecting the RS-422A/485 port of the NT31/NT31C and the RS-422A/485 port of the host are described here. There are the following methods.
The following discussion is focused on the connection method to OMRON
PLCs (By using the memory link method, a connection can be made to any arbitrary RS-422 unit). When making a connection to a host other than
OMRON PLCs, refer to the PLC Connection Manual (V042-E1@) or Multi
Vendor Connection Manual (V060-E1@).
• Method in which the RS-422A ports of the NT31/NT31C and host are
connected directly by an RS-422A cable (page 116).
When this method is used, the cable length can be extended up to 500 m.
PT Host
RS-422A cable
(max. 500 m)
• Method in which the RS-485 ports of the NT31/NT31C and host are con-
nected by an RS-485 cable (page 119).
When this method is used, the cable length can be extended up to
500 m.
94
Connecting to the Host’s RS-422A/485 Port
Section 5-2
This connection method can be used only with the NT link (1:N) method (standard or high-speed) of type RS-485.
PT Host
RS-485 cable
(max. 500 m)
• Method in which the RS-422A ports of multiple NT31/NT31Cs and the
RS-422A port of the host are connected in a 1:N connection (page 121).
This connection method is used with the RS-422A type NT link (1:N) method (standard or high-speed).
PT
Host
RS-422A cable
(max. total length 500 m)
• Method in which the RS-485 ports of multiple NT31/NT31Cs and the RS-
485 port of the host are connected in a 1:N connection (page 124).
This connection method is used with the RS-485 type NT link (1:N) method (standard or high-speed).
PT
Host
RS-485 cable
(max. total length 500 m)
Note
One end of the wire must always be connected to the host (PLC), and there must be no branching. Branching will cause problems such as transmission delays and communications failures.
Reference:
PLC (At termination)
NT31C
(Not at termination)
Relay terminal block
Max. 2 m
NT31
(Not at
NT31 termination) (Not at termination)
NT31
(At termination)
Example of Good Connection
NT31
PLC
NT31C NT31 NT31
PLC
Relay terminal block
NT31C NT31
Examples of Bad Connections
CS/CJ-series CPU Units cannot be connected with the 1:1 connection NT link method. Use the 1:N connection NT link method (standard or high-speed) instead to make the 1:1 connection. For details, refer to Using the NT link (1:N)
Method (page 109) or Using the High-speed NT link (1:N) Method (page 113).
5-2-1 Host Types and Settings
The types of host that have an RS-422A port and can be connected to the
RS-422A/485 port of the NT31/NT31C, and the settings to be made at the host, are described here.
95
Connecting to the Host’s RS-422A/485 Port
Section 5-2
When Using the Host Link
Method
PLC
Series
CS Series
CJ Series
Compatible Host Units
Some models and series of OMRON PLCs have the RS-422A/485 type host link function built in. With the CS/CJ-series and CQM1H, the host link method can be used by installing a Serial Communications Board/Unit. In addition, some C200HX/HG/HE(-Z)E PLCs can be connected using the host link method by installing a Communications Board.
With the CPM2A and CPM2C, an RS-422A type of 1:1 NT Link can be created through a CPM1-CIF11 RS-422A Adapter.
Check the model and series of the PLC and the type of the installed Board or
Unit before making a connection.
The Host Units featuring the RS-422A/485 host link function that can be connected to the RS-422A/485 port of the NT31/NT31C are listed in the table below.
CPU Unit with built-in Host
Link
CPU Units Connectable with
Host Link Units or Expansion Communications Board/Unit
CS1G-CPU42/43/44/45-E(V1)
CS1H-CPU63/64/65/66/67-E(V1)
CS1G-CPU42H/43H/44H/45H
CS1H-CPU63H/64H/65H/66H/67H
CS1D-CPU65H/67H
(*1)
CJ1G-CPU44/45
CJ1G-CPU42H/43H/44H/45H
CJ1H-CPU65H/66H/67H
CJ1M-CPU11/12/13/21/22/23
Host Link Unit or
Communications
Board/Unit
CS1W-SCB41(-V1)
CS1W-SCU31-V1
CJ1W-SCU31-V1
CJ1W-SCU41(-V1)
Connectable
CS1G
CS1H
CS1D
CJ1G
CJ1H
CJ1M
to
96
Connecting to the Host’s RS-422A/485 Port
Section 5-2
PLC
Series
C Series
CV Series
(*3)
CVM1
Series
SRM1
(*3)
CPU Unit with built-in Host
Link
CPU Units Connectable with
Host Link Units or Expansion Communications Board/Unit
C1000H-CPU01-EV1
C2000H-CPU01-EV1
C200HS-CPU01/03/21/23/31/33-E
C200HS-CPU01/21-EC
C200HE-CPU11/32/42-E
C200HE-CPU11/32/42-ZE
C200HG-CPU33/43/53/63-E
C200HG-CPU33/43/53/63-ZE
C200HX-CPU34/44/54/64-E
C200HX-CPU34/44/54/64/65/85-ZE
C200HE-CPU32/42-E
C200HE-CPU32/42-ZE
C200HG-CPU33/43/53/63-E
C200HG-CPU33/43/53/63-ZE
C200HX-CPU34/44/54/64-E
C200HX-CPU34/44/54/64/65/85-ZE
C1000H-CPU01-EV1
C2000H-CPU01-EV1
C1000H-CPU01-EV1
C2000H-CPU01-EV1
CPM1-10/20/30CDR@
+CPM1-CIF11
CPM1A-10/20/30/
40CD @-@+CPM1-CIF11
CPM2A-30/40/60CD @-@
+CPM1-CIF11
(Peripheral port connection)
CPM2C-10/
20 @@@@@@-@
(*2)
CV500-CPU01-EV1
CV1000-CPU01-EV1
CV2000-CPU01-EV1
CVM1-CPU01-EV2
CVM1-CPU11-EV2
CVM1-CPU21-EV2
SRM1-C02-V1+
CPM1-CIF11
CQM1H-CPU51/61
CV500-CPU01-EV1
CV1000-CPU01-EV1
CV2000-CPU01-EV1
CVM1-CPU01-EV2
CVM1-CPU11-EV2
CVM1-CPU21-EV2
Host Link Unit or
Communications
Board/Unit
C200HW-COM03/
06-EV1
Connectable
C200HE
C200HE-ZE
C200HG
C200HG-ZE
C200HX
C200HX-ZE
3G2A5-LK201-EV1 C1000H
C2000H
C500-LK203 C1000H
C2000H
CPM1
CQM1H
CV500
CV1000
CV2000
CVM1
SRM1
to
3G2A6-LK202-EV1 C1000H
C2000H
C200H-LK202-V1 C200HS
C200HE
C200HE-ZE
C200HG
CQM1H-SCB41
CV500-LK201
CV500-LK201
C200HG-ZE
C200HX
C200HX-ZE
CPM2A
CPM2C
*1
This CPU Unit is for a Duplex-CPU Unit System. The CS1W-SCB41(-V1)
Serial Communications Board cannot be used.
*2
Use a CPM2C-CN111 or CS1W-CN114/118 Connecting Cable, CPM1-
CIF01 RS-232C Adapter, or CPM1-CIF11 RS-422A Adapter to connect.
*3
CPU Units of CVM1/CV-series PLCs without the suffix -EV @ cannot be connected.
The host link method cannot be used when an NT31/NT31C is connected using RS-485. To use the host link method, connect by RS-422A.
97
Connecting to the Host’s RS-422A/485 Port
Connecting to a C Series
Host Link Unit
Section 5-2
Settings at the Host
When using the RS-422A type host link method, the settings shown below must be made at the host (depending on the Unit, some of these settings may not be necessary, or settings not shown here may be necessary).
Item
I/O port
Communications speed
Transfer code
Parity
1-to-1/1-to-N
Instruction level
Unit #
Setting at Host
RS-422A
Set the same speed as for the NT31/NT31C.
(*1)
ASCII, 7 data bits, 2 stop bits
Even
1-to-N
(*2)
Level 1, 2, 3
00
*1
Set the host link communications speed at 9600 bps or 19200 bps with the
Comm. Speed memory switch at the NT31/NT31C. For details, refer to 6-7-
2 Setting the Host Link Method (page 161).
*2
The 1-to-N setting enables BCC (Block Check Character). It is not actually possible to connect more than one NT31/NT31C in a single host link.
The setting methods for each type of Unit are described in the following.
C200H/C200HS/C200HE(-Z)E/C200HG(-Z)E/C200HX(-Z)E
Rack-mounting Unit: C200H-LK201-V1
Setting the Front Switches
Set each switch with a flat blade screwdriver so that the values or symbols in the setting value window agree with the following:
LK201
RUN
RCV
XMT
ERROR
• Unit # (SW1, SW2)
Set these switches to 0.
SW1
0
0
SW2
SW3
5 2
SW4
• Instruction level, parity, and transfer code (SW4)
Set this switch to 2.
Setting the Rear Switches
• Communications speed (SW3)
Set this switch to 5 to select 9600 bps.
Set this switch to 6 to select 19200 bps.
• Terminator setting (selector switch)
Set this switch to ON.
Terminator
ON
OFF
1-to-1 (ON)
1-to-N (OFF)
• 1-to-1/1-to-N protocol selection (selector switch)
Set this switch to 1-to-N (OFF).
98
Connecting to the Host’s RS-422A/485 Port
C1000H/C2000H Rack-mounting Unit: 3G2A5-LK201-EV1
Setting the Front Switches
Section 5-2
Mode selector
Host Local
• Mode selector (key switch)
Set this to Host link.
Setting the Rear Switches
I/O port
RS-422A
RS-232C
Synchronization
Internal
External
Terminator
OFF
ON
CTS
0 V
External
• I/O port selection (selector switch)
Set this to RS-422A.
ON
6
5
4
8
7
3
2
1
ON
4
3
2
1
8
7
6
5
SW1
SW2
• Unit # (DIP SW1)
Set SW1-1 to SW1-5 to OFF (0).
• Synchronization (selector switch)
Set this to Internal.
• Communications speed
(DIP SW2-1 to SW2-4)
Set these switches to 0010 to select
19200 bps.
Set these switches to 1010 to select
9600 bps.
(0: OFF 1: ON)
• 1-to-1/1-to-N selection (DIP SW2-6)
Set SW2-6 to OFF (0) (1-to-N).
• Instruction level (DIP SW2-7, SW2-8)
Set these switches to ON (1).
(Levels 1, 2, and 3 are enabled.)
• CTS selection (selector switch)
Set this always to 0 V (ON).
• Terminator setting (selector switch)
Set this switch to ON.
99
Connecting to the Host’s RS-422A/485 Port
Section 5-2
C1000H/C2000H Rack-mounting Unit: C500-LK203
Setting the Rear Switches
• I/O port selection (selector switch)
Set this to RS-422A.
5 V supply
ON
OFF
I/O port
RS-422A
RS-232C
ON
5
4
3
2
1
8
7
6
SW1
• Unit #, parity, and transfer code
(DIP SW1-1 to SW1-7)
Set SW1-1 to SW1-7 to OFF (0).
Synchronization
Internal
External
Terminator
OFF
ON
CTS
0 V
External
ON
6
5
4
8
7
3
2
1
SW2
• Synchronization (selector switch)
Set this to Internal.
• Communications speed
(DIP SW2-1 to SW2-4)
Set these switches to 0010 to select
19,200 bps.
Set these switches to 1010 to select
9,600 bps.
(0: OFF 1: ON)
• 1-to-1/1-to-N selection (DIP SW2-6)
Set SW2-6 to OFF (0) (1-to-N).
• Instruction level (DIP SW2-7, SW2-8)
Set these switches to ON (1).
(Levels 1, 2, and 3 are enabled.)
• CTS selection (selector switch)
Set this always to 0 V (ON).
• Terminator setting (selector switch)
Set this switch to ON.
C200H/C1000H/C2000H CPU-mounting Unit: 3G2A6-LK202-EV1
Setting the Rear Switches
• Unit #, parity, and transfer code
(DIP SW1-1 to SW1-5)
Set SW1-1 to SW1-5 to OFF (0).
* Parity is fixed at Even Parity. Transfer code is fixed at ASCII 7 data bits and 2 stop bits.
• Communications speed (DIP SW2-1 to SW2-4)
Set these switches to 0010 to select 19,200 bps.
Set these switches to 1010 to select 9,600 bps.
(0: OFF 1: ON)
SW1
SW2
• 1-to-1/1-to-N selection (DIP SW2-6)
Set SW2-6 to OFF (0) (1-to-N).
• Instruction level (DIP SW2-7, SW2-8)
Set these switches to ON (1).
(Levels 1, 2, and 3 are enabled.)
SW3
• Terminator setting (DIP SW3-1 to SW3-6)
Set SW3-1, SW3-3, and SW3-5 to ON (1).
Set SW3-2, SW3-4, and SW3-6 to OFF (0).
(Set terminator ON.)
100
Connecting to the Host’s RS-422A/485 Port
Connecting to a CVM1/CV
Series Host Link Unit
Section 5-2
CVM1/CV-series Rack-mounting Unit: CV500-LK201
A CVM1/CV-series Host Link Unit (CV500-LK201) has two connectors (communications ports 1 and 2). To use the RS-422A type host link method, set communications port 2 to RS-422A.
Communications port 2 is a 9-pin connector which allows selection of the RS-
232C or RS-422A method. When this port is used with the RS-422A method, the I/O port selector switch on the front of the Unit must be set to RS-422A
(the lower position).
CPU Bus Unit Settings
When connecting to a CVM1/CV-series Host Link Unit, set the following communications conditions for the CPU Bus Unit settings.
Item
Communications speed
Transfer code
Parity
1-to-1/1-to-N
Instruction level
Setting at Host
Set the same speed as for the NT31/NT31C.
(*1)
ASCII, 7 data bits, 2 stop bits
Even
1-to-N
(*2)
Level 1, 2, 3
*1
Set the host link communications speed at 9600 bps or 19200 bps with the
Comm. Speed memory switch at the NT31/NT31C. For details, refer to 6-7-
2 Setting the Host Link Method (page 161).
*2
The 1-to-N setting enables BCC (Block Check Character). It is not actually possible to connect more than one NT31/NT31C in a single host link.
Set the CPU Bus Unit settings directly from a Programming Device (e.g. SYS-
MAC support software).
For details on the CPU Bus Unit settings, refer to the SYSMAC CVM1/CV-
series Host Link Unit Operation Manual (W205-E1-
@).
101
Connecting to the Host’s RS-422A/485 Port
Setting the Front Switches
Section 5-2
• Unit # (SW3, SW4)
Set these switches to 0.
Communications port 1
(RS-232C)
Communications port 2
(RS-232C/RS-422A)
I/O port selector switch
RS-232C
RS-422A
• I/O port selection (selector switch)
Set this to RS-422A.
• Communications condition setting (DIP SW1)
Set this switch to OFF.
Communications are executed in accordance with the
CPU Bus Unit system settings made at the PLC. The initial values for the system settings are as follows.
- Communications speed: 9,600 bps
- Parity: Even
- Xon/Xoff control: Not executed
- Communications method: Full duplex
- Stop bits: 2 stop bits
- Data length: 7 bits
Connecting to a CPU Unit
• Terminator setting (selector switch)
Set this to ON.
CVM1/CV-series (-EV @) CPU Units
• CV500-CPU01-EV1/CV1000-CPU01-EV1/CV2000-CPU01-EV1
• CVM1-CPU01-EV2/CVM1-CPU11-EV2/CVM1-CPU21-EV2
PLC Setup
When connecting to a CVM1/CV-series CPU Unit, set the following communications conditions for the PLC Setup.
Item
Communications speed
Stop bit
Parity
Data length
Unit #
Setting at Host
Set the same speed as for the NT31/NT31C.
(*1)
2 stop bits
Even
ASCII 7 bits
00
*1
Set the host link communications speed at 9600 bps or 19200 bps with the
Comm. Speed memory switch at the NT31/NT31C. For details, refer to 6-7-
2 Setting the Host Link Method (page 161).
Either set PLC Setup directly from a Programming Device (e.g. SYSMAC support software), or transmit the PLC Setup made at a Programming Device to the CPU Unit.
For details on the PLC Setup, refer to the SYSMAC CVM1/CV500/CV1000/
CV2000 Operation Manual: Ladder Diagrams (W202-E1@).
102
Connecting to the Host’s RS-422A/485 Port
Setting the Front Switches
Section 5-2
• Host link communication method selection (selector switch)
Set this to RS-422A.
• Communications type setting (DIP
SW3) Set SW3 to OFF.
(for host link communications)
Reference:
I/O port selector switch
RS-232C
RS-422A
• Host link default value settings
(DIP SW4)
To effect the existing DIP switch settings, set SW4 to ON.
To effect the values set in the PLC
Setup, set SW4 to OFF.
Note
For CPU Units manufactured before or during June 1995 (lot No. jj65), the existing DIP switch settings differ from the PLC Setup default values as follows.
- Existing DIP switch settings:
2,400 bps, 1 stop bit, even parity, 7 bit data length
- PLC Setup default values:
9,600 bps, 2 stop bits, even parity, 7 bit data length
For CPU Units manufactured from July
1995 onward (lot No. jj75), the stipulated values in the DIP switch settings also are
9600 bps and 2 stop bits.
• Terminator setting (DIP SW6)
Set this switch to ON.
(Set terminator ON.)
C200HX/HG/HE(-Z)E, CPM1, CPM2A, CPM2C, CQM1H, or SRM1
The connection method depends upon the model of PLC being used, as shown in the following table.
PLC model
• Connect to the RS-422A port (port 2) on a Serial Communications Board.
Connection method
C200HX/HG/HE(-Z)E • Connect to the RS-422A port (port A) on a Communications Board.
CQM1H
CPM1 • Connect to the peripheral port through a CPM1-CIF11 RS-
422A Adapter.
CPM2A, SRM1
CPM2C
• Connect to the peripheral port through a CPM1-CIF11 RS-
422A Adapter.
• Connect to the peripheral port (on a CPM2C-CN111 or
CS1W-CN114 Connecting Cable) through a CPM1-CIF11
RS-422A Adapter.
(The CPM2C-CN111 splits the Unit’s communications port into a RS-232C port and a peripheral port.)
• There are no Communications Boards for the C200HX/HG/HE(-Z)E in which port B is the RS-422A port.
• There are no Serial Communications Boards for the CQM1H in which port
1 is the RS-422A port.
103
Connecting to the Host’s RS-422A/485 Port
Section 5-2
PLC Setup Area Settings
When connecting to a C200HX/HG/HE(-Z)E or CPM1, CPM2A, CPM2C,
CQM1H CPU Units or SRM1, set the following communications conditions for the PLC Setup area.
Item
I/O port
Communications mode
Communications speed
Stop bit
Parity
Data length
Unit #
Setting at Host
RS-422A
Host link mode
Set the same speed as for the NT31/NT31C.
(*1)
2 stop bits
Even
ASCII 7 bits
00
*1
Set the host link communications speed at 9600 bps or 19200 bps with the
Comm. Speed at the NT31/NT31C. For details, refer to refer to 6-7-2 Set-
ting the Host Link Method (page 161).
Set the PLC Setup area settings directly from a Programming Device (e.g.
CX-Programmer).
For details on operations relating to the PLC Setup area, refer to the manual for the PLC which is used.
The PLC Setup area word numbers and settings to be made depending on the Unit to which the connection is made are shown below.
When using port A of the Communications Board of C200HX/HG/HE(-Z)E
Word # Setting
DM6555 0001
DM6556 0303
0304
DM6558 0000
Setting Contents
Host link mode, no CTS control
Communications conditions set by the contents of DM
Data length 7 bits, 2 stop bits, even parity, communications speed: 9600 bps
Data length 7 bits, 2 stop bits, even parity, communications speed: 19200 bps
Unit # 00
When using a CPM1, CPM2A, CPM2C, SRM1
Word # Setting
DM6650 0001
DM6651 0303
0304
DM6653 0000
Setting Contents
Host link mode, no CTS control
Communications conditions set by the contents of DM
Data length 7 bits, 2 stop bits, even parity, communications speed: 9600 bps
Data length 7 bits, 2 stop bits, even parity, communications speed: 19200 bps
Unit # 00
When using a CQM1H
Word # Setting
DM6550 0001
DM6551 0303
0304
DM6553 0000
Setting Contents
Host link mode, no CTS control
Communications conditions set by the contents of DM
Data length 7 bits, 2 stop bits, even parity, communications speed: 9600 bps
Data length 7 bits, 2 stop bits, even parity, communications speed: 19200 bps
Unit # 00
104
Connecting to the Host’s RS-422A/485 Port
Section 5-2
Connecting to a CPM2C
The CPM2C PLCs do not have the same kind of port connectors found on CS/
CJ-series PLCs. The CPM2C’s communications port handles both RS-232C and peripheral port connections which are divided internally. Therefore, when using the CPM2C, it is necessary to select RS-232C or peripheral port connections, according to the kind of cable and port (on the cable) used, as shown in the following table. Refer to the CPM2C Operation Manual for more details.
Peripheral port
CPM2C-CN111
CPM2C
CS1W-CN114
CPM2C
Peripheral port
RS-232C port
(D-Sub 9-pin, female)
Setting Switches on a C200HX/HG/HE(-Z)E Communications Board
Set the switches on a C200HX/HG/HE(-Z)E Communications Board as follows.
Switch 1:
4
(4-wire = RS-422A)
Switch 2: ON (terminator ON = terminating resistance enabled)
Setting Switches on a CQM1H Serial Communications Board
Set the switches on a CQM1H Serial Communications Board as follows.
2-wire or 4-wire selector (WIRE):
4
(4-wire = RS-422A)
Terminating resistance switch (TERM): ON (terminator ON = terminating resistance enabled)
Serial Communications Board
(Inner Board slot 1)
Terminator Switch (TERM)
Set to ON (right side).
Wire Selection Switch (WIRE)
Set to 4 (right side).
Setting the Switches on an RS-422A Adapter
CPM1-
CIF11
CPM1
Set the terminator selector switch to ON (upper position).
Connecting to a CS-series Serial Communications Board
Serial Communications Board with RS-422A/485 port equipped for CS-series
CPU Unit:
CS1W-SCB41(-V1) (Port 2 is an RS-422A/485 port.)
105
Connecting to the Host’s RS-422A/485 Port
Section 5-2
Serial Communications Board Switch Settings
Set the switches on the Serial Communications Board as shown below.
2-wire or 4-wire selector (WIRE):
4
(4-wire = RS-422A)
Terminating resistance switch (TERM): ON (terminator ON = terminating resistance enabled).
Allocation DM Area Settings for CPU Unit
Settings are written from the Programming Device (a Programming Console or CX-Programmer) directly into the allocation DM area (system setting area) of the CPU Unit. After the settings are written, they become effective by turning the power ON, restarting the Unit, restarting the communications port, or executing the STUP command.
In the following, the channel numbers of the allocation DM area and the settings are shown.
Allocated DM
Area words
Port 2
DM32010 8000
Setting Setting Contents
DM32011
DM32012
DM32013
0000
0007
0000
0000
Host link mode, 2 stop bits, data length 7 bits, even parity,
Communications speed: 9600 bps.
Communications speed1: 9200 bps.
Transmit delay time0 ms.
No CTS control Unit No.0 for host link
Connecting to a CS/CJ-series Serial Communications Unit
CS/CJ-series Rack-mounting Units:
CS1W-SCU31-V1 (Port 1 and port 2 are both RS-422A/485 ports.)
CJ1W-SCU31-V1 (Port 1 and port 2 are both RS-422A/485 ports.)
CJ1W-SCU41(-V1) (Port 1 is an RS-422A/485 port.)
Setting the Front Switches
Set the unit number of the Serial Communications Unit using the rotary switches on the front of the Unit. Set the number or symbol in the setting display window in the following way using a flat-blade screwdriver. When using a
CS/CJ-series Serial Communications Unit set the switches as shown below.
2-wire or 4-wire selector (WIRE):
4
(4-wire = RS-422A)
Terminating resistance switch (TERM): ON (terminator ON = terminating resistance enabled).
DM Area Allocation Settings
From the Programming Device (i.e., a Programming Console or CX-Programmer), write the settings directly to the CPU Unit's DM Area Setup Area. After the settings have been written, they will be enabled when the power supply is cycled, the Unit is restarted, the communications port is restarted, or a STUP instruction is executed.
The DM Area words that are allocated and the contents of the settings are given in the following table.
106
Connecting to the Host’s RS-422A/485 Port
Using the NT Link (1:1)
Method
Section 5-2
m = DM 30000 + 100
× unit number
Setting Contents Allocated DM
Area words
Port 1 Port 2
m m+10 8000
Setting
m+1 m+2 m+3 m+11 0000
0007 m+12 0000 m+13 0000
Serial communications mode: Host Link, Stop bits: 2; Parity: even, Data length: 7 bits
Baud rate: 9,600 bps
Baud rate: 19,200 bps
Send delay time: 0 ms
No CTS control; Host Link unit number: 0
Compatible Host Units
Some models and series of OMRON PLCs have the RS-422A type NT link
(1:1) function built in.
• The C200HX/HG/HE(-Z)E CPU Units can be connected by the RS-422A type NT link (1:1) method by installing a Communications Board.
• The CQM1H CPU Units can be connected by the RS-422A type NT link
(1:1) method by installing a Serial Communications Board.
Check the model and series of the PLC against the model of CPU Unit before making the connections.
The Units that can be connected to the RS-422A port of the NT31/NT31C by the RS-422A type NT link (1:1) method are indicated in the table below.
PLC Series CPU Units with Built-in RS-422A NT Link
(1:1) Function
C series
C200HE-CPU32-(Z)E
(*1)
C200HE-CPU42-(Z)E
(*1)
Model Name
C200HE (-Z)E
C200HG (-Z)E
CV series
(*2)
CVM1 series
(*2)
C200HG-CPU33-(Z)E
(*1)
C200HG-CPU43-(Z)E
(*1)
C200HG-CPU53-(Z)E
(*1)
C200HG-CPU63-(Z)E
(*1)
C200HX-CPU34-(Z)E
(*1)
C200HX-CPU44-(Z)E
(*1)
C200HX-CPU54-(Z)E
(*1)
C200HX-CPU64-(Z)E
(*1)
C200HX-CPU65-ZE
(*1)
C200HX-CPU85-ZE
(*1)
CQM1H-CPU51/61
CV500-CPU01-EV1
CV1000-CPU01-EV1
CV2000-CPU01-EV1
CVM1-CPU01-EV2
CVM1-CPU11-EV2
CVM1-CPU21-EV2
C200HX (-Z)E
CQM1H
CV500
CV1000
CV2000
CVM1
*1
One of the following Communications Boards is required:
C200HW-COM03-EV1 or C200HW-COM06-EV1.
*2
A CQM1H-SCB41 Serial Communications Board is required.
*3
CPU Units of CVM1/CV series PLCs without the suffix -EV @ cannot be connected.
107
Connecting to the Host’s RS-422A/485 Port
Section 5-2
The NT link (1:1) method cannot be used using RS-485. To use the NT link
(1:1) method, connect by RS-422A.
NT link connection using RS-422A/485 is not possible with CPM1.
Settings at the Host
The setting methods for each type of Unit are described in the following.
• Connecting to a CVM1/CV-series (-EV @) CPU Units
• CV500-CPU01-EV1/CV1000-CPU01-EV1/CV2000-CPU01-EV1
• CVM1-CPU01-EV2/CVM1-CPU11-EV2/CVM1-CPU21-EV2
PLC Setup
When connecting to the CVM1/CV-series CPU Unit by the NT link (1:1) method, no particular settings are required at the PLC Setup.
Setting the Front Switches
• Host link communications method selection
(selector switch)
Set this to RS-422A.
I/O port selector switch
RS-232C
RS-422A
• Communications type setting (DIP SW3)
Set this switch to ON.
(for communications by NT link)
• Terminator setting (DIP SW6)
Set this switch to ON.
(Set terminator ON.)
Connecting to a C-series C200HX/HG/HE(-Z)E or CQM1H
PLC Setup Area Settings
Write the PLC Setup area (data memory) settings directly from a Programming Device (e.g. CX-Programmer) in accordance with the host model.
Host Model
Port A of C200HX/HG/HE(-Z)E
*1
Port 2 of CQM1H
*2
Word # Setting
DM6555 4000
DM6550 4000
Setting Contents
Use NT link (1:1)
*1
RS-422A port of the Communications Board
*2
RS-422A port of the Serial Communications Board
For details on operations relating to the PLC Setup area, refer to the manual for the PLC you are using.
Setting the DIP Switches on a C200HX/HG/HE(-Z)E Communications
Board
Set the switches on a C200HX/HG/HE(-Z)E Communications Board as follows.
Switch 1:
4
(4-wire = RS-422A)
Switch 2: ON (terminator ON = terminating resistance enabled)
108
Connecting to the Host’s RS-422A/485 Port
Section 5-2
Setting Switches on a CQM1H Serial Communications Board
Set the switches on a CQM1H Serial Communications Board as follows.
2-wire or 4-wire selector (WIRE):
4
(4-wire = RS-422A)
Terminating resistance switch (TERM): ON (terminator ON = terminating resistance enabled)
Serial Communications Board
(Inner Board slot 1)
Using the NT Link (1:N)
Method
Terminator Switch (TERM)
Set to ON (right side).
Wire Selection Switch (WIRE)
Set to 4 (right side).
Compatible Host Units
The only OMRON PLCs that can be connected using the RS-422A/485 NT link (1:N) method are the CS/CJ-series PLCs and the C-series C200HX/HG/
HE(-Z)E, and CQM1H PLCs. A Serial Communications Board/Unit must be installed to make the connection.
Check the model and series of the PLC against the model of CPU Unit or
Communications Board before making the connections.
The Units that can be connected to the RS-232C port of the NT31/NT31C by the RS-422A type NT link (1:N) function via a convertor are indicated in the table below.
PLC
Series
CS series
CJ series
CPU Units with Builtin NT Link (1:N)
Function
---
---
CPU Unit that becomes connectable by installing a
Communications Board/Unit
CS1G-CPU42/43/44/45-
E(V1)
(*1)
CS1H-CPU63/64/65/66/67-
E(V1)
(*1)
CS1G-CPU42H/43H/44H/
45H
(*1)
CS1H-CPU63H/64H/65H/66H/
67H
(*1)
CS1D-CPU65H/67H
(*2)
CJ1G-CPU44/45
(*3)
CJ1G-CPU42H/43H/44H/45H
(*3)
CJ1H-CPU65H/66H/67H
(*3)
CJ1M-CPU11/12/13/21/22/23
(*3)
Model Name
CS1G
CS1H
CS1D
CJ1G
CJ1H
CJ1M
109
Connecting to the Host’s RS-422A/485 Port
Section 5-2
Reference:
PLC
Series
CPU Units with Builtin NT Link (1:N)
Function
C series ---
---
---
---
CPU Unit that becomes connectable by installing a
Communications Board/Unit
C200HE-CPU32-(Z)E
(*4)
C200HE-CPU42-(Z)E
(*4)
C200HG-CPU33-(Z)E
(*4)
C200HG-CPU43-(Z)E
(*4)
C200HG-CPU53-(Z)E
(*4)
C200HG-CPU63-(Z)E
(*4)
C200HX-CPU34-(Z)E
(*4)
C200HX-CPU44-(Z)E
(*4)
C200HX-CPU54-(Z)E
(*4)
C200HX-CPU64-(Z)E
(*4)
C200HX-CPU65-ZE
(*4)
C200HX-CPU85-ZE
(*4)
CQM1H-CPU51/61
(*5)
Model Name
C200HE (-Z)E
C200HG (-Z)E
C200HX (-Z)E
CQM1H
*1
A CS1W-SCB41(-V1) Serial Communications Board or CS1W-SCU31-V1
Serial Communications Unit is required.
*2
This CPU Unit is for a Duplex-CPU Unit System. The CS1W-SCB41(-V1)
Serial Communications Board cannot be used. Use the CS1W-SCU31-V1
Serial Communications Unit.
*3
A CS1W-SCU31-V1 or CS1W-SCU41(-V1) Serial Communications Unit is required.
*4
A C200HW-COM03-V1 or C200-COM06-V1 Communications Board is required.
*5
A CQM1H-SCB41 Serial Communications Board is required.
Settings at the Host
C-series C200HX/HG/HE(-Z)E and CQM1H
PLC Setup Area Settings
Write the communications conditions directly into the PLC Setup area (data memory) using a Programming Device (e.g. CX-Programmer).
Make the setting indicated in the word shown below.
Connection to
Port A of a C200HX/
HG/HE(-Z)E
*1
Port 2 of a CQM1H
*2
Word # Writing Value
DM6555 5 @00
DM6550 5
@00
Setting
Use NT link (1:N)
@ = The highest unit number of the connected PTs (0 to 7)
*3
*1
The Communications Board’s RS-422A/485 port
*2
The Serial Communications Board’s RS-422A/485 port
*3
When using C200HE(-Z)E, the maximum PT unit number is 3.
For details on setting the PLC Setup area settings, refer to the PLC’s operation manual.
• There are no Serial Communications Boards for the C200HX/HG/HE(-Z)E in which port B is the RS-422A/485 port.
110
Connecting to the Host’s RS-422A/485 Port
Section 5-2
• There are no Serial Communications Boards for the CQM1H in which port
1 is the RS-422A/485 port.
Setting the DIP Switches on a C200HX/HG/HE(-Z)E Communications
Board
Set the switches on a C200HX/HG/HE(-Z)E Communications Board as follows.
Switch 1:
4
(4-wire = RS-422A), or
2
(2-wire = RS-485)
Switch 2: ON (terminator ON = terminating resistance enabled)
Setting Switches on a CQM1H Serial Communications Board
Set the switches on a CQM1H Serial Communications Board as follows.
2-wire or 4-wire selector (WIRE):
4
(4-wire = RS-422A), or
2
(2-wire = RS-485)
Terminating resistance switch (TERM): ON (terminator ON = terminating resistance enabled)
Serial Communications Board
(Inner Board slot 1)
Terminator Switch (TERM)
Set to ON (right side)
Wire Selection Switch (WIRE)
When using RS-422A: Set to 4 (right side) for 4-wire type.
When using RS-485: Set to 2 (left side) for 2-wire type.
Connecting to CS-series Serial Communications Board
Serial Communications Board with RS-422A/485 port equipped for CS-series
CPU Unit:
CS1W-SCB41(-V1) (The port 2 is an RS-422A/485 port.)
Setting the Front Switches
Set the switches on the Serial Communications Board as shown below.
2-wire or 4-wire selector (WIRE):
4
(4-wire = RS-422A), or
2
(2-wire = RS-485)
Terminating resistance switch (TERM): ON (terminator ON = terminating resistance enabled)
111
Connecting to the Host’s RS-422A/485 Port
Section 5-2
RDY
COMM1
COMM2
Port 1
RS-232C
PORT1
Terminal resistance setting switch (TER)
Set to ON (Terminal resistance is present.) (right side)
OFF
2
ON TERM
4 WIRE
Port 2
RS-422A/485
PORT2
(RS422/
RS485)
Two wire type/four wire type changeover switch (WIRE)
For RS-422A: 4 (4 wire type) (right side)
For RS-485: 2 (2 wire type) (left side)
SCB41
Allocation DM Area Settings for CPU Unit
Settings are written from the Programming Device (a Programming Console or CX-Programmer) directly into the allocation DM area (system setting area) of the CPU Unit. After settings are written, they become effective by turning the power ON, restarting the Unit, restarting the communications port, or executing the STUP command.
In the following, the channel numbers of the allocation DM area and settings are shown.
Allocated DM
Area words
Port 2
DM32010
DM32011
DM32016
Setting
8200
0000 to 0009
(*1)
000 @
Setting Contents
1:N NT Link Mode
Baud rate (standard)
@
= The highest unit number of the connected
PTs (0 to 7)
*1
Set any value between 0000 and 0009 hex for the baud rate. The same baud rate will be used regardless of the value as long as it is between 0000 and 0009 hex.
For example, when connecting PTs with model numbers 3, 4, 5, and 6 to port
2 in the NT link (1:N), set a value of 8200 Hex for D32010, 0000 Hex for
DM32011, and 0006 Hex for D32016.
Connecting to a CS/CJ-series Serial Communications Unit
CS/CJ-series Rack-mounting Units:
CS1W-SCU31-V1 (Port 1 and port 2 are both RS-422A/485 ports.)
CJ1W-SCU31-V1 (Port 1 and port 2 are both RS-422A/485 ports.)
CJ1W-SCU41(-V1) (The port 1 is an RS-422A/485 port.)
Setting the Front Switches
Set the unit number of the Serial Communications Unit using the rotary switches on the front of the Unit. Set the number or symbol in the setting display window in the following way using a flat-blade screwdriver. When using a
CS/CJ-series Serial Communications Unit set the switches as shown below.
2-wire or 4-wire selector (WIRE):
4
(4-wire = RS-422A), or
2
(2-wire = RS-485)
112
Connecting to the Host’s RS-422A/485 Port
Using the High-speed NT
Link (1:N) Method
Section 5-2
Terminating resistance switch (TERM): ON (terminator ON = terminating resistance enabled)
DM Area Allocation Settings
From the Programming Device (i.e., a Programming Console or CX-Programmer), write the settings directly to the CPU Unit's DM Area Setup Area. After the settings have been written, they will be enabled when the power supply is cycled, the Unit is restarted, the communications port is restarted, or a STUP instruction is executed.
The DM Area words that are allocated and the contents of the settings are given in the following table.
m = DM 30000 + 100
× unit number
Setting Setting Contents
m
Allocated DM Area words
Port 1 Port 2
m+10 m+1 m+11 m+6 m+16
8200
0000 to 0009
(*1)
000 @
1:N NT Link Mode
Baud rate (standard)
@
= The highest unit number of the connected PTs (0 to 7)
*1
Set any value between 0000 and 0009 hex for the baud rate. The same baud rate will be used regardless of the value as long as it is between 0000 and 0009 hex.
Compatible Host Units
Only OMRON’s CS/CJ-series PLCs support the high-speed 1:N NT Link through RS-422A/RS-485. The high-speed 1:N NT Link must be established through a Serial Communications Board/Unit. (Even CS-series Units without the “-V1” suffix can be connected via a high-speed 1:N NT Link by mounting a
Serial Communications Board/Unit.)
Be sure to check the model number of the PLC and Board/Unit before trying to establish the high-speed 1:N NT Link.
The following table shows which CS-series PLCs can be connected to an
NT31/NT31C with the high-speed 1:N NT Link through RS-422A/RS-485.
PLC
Series
CS series
CJ series
CPU Units with builtin high-speed NT link
(1:N)
---
---
CPU Units supporting connection through a Serial
Communications Board/Unit
CS1G-CPU42/43/44/45-E(V1)
(*1)
CS1H-CPU63/64/65/66/
67-E(V1)
(*1)
CS1G-CPU42H/43H/44H/45H
(*1)
CS1H-CPU63H/64H/65H/66H/
67H
(*1)
CS1D-CPU65H/67H
(*2)
CJ1G-CPU44/45
(*3)
CJ1G-CPU42H/43H/44H/45H
(*3)
CJ1H-CPU65H/66H/67H
(*3)
CJ1M-CPU11/12/13/21/22/23
(*3)
Model Name
CS1G
CS1H
CS1D
CJ1G
CJ1H
CJ1M
*1
A CS1W-SCB41(-V1) Serial Communications Board or CS1W-SCU31-V1
Serial Communications Unit is required.
113
Connecting to the Host’s RS-422A/485 Port
Reference:
Section 5-2
*2
This CPU Unit is for a Duplex-CPU Unit System. The CS1W-SCB41(-V1)
Serial Communications Board cannot be used. Use the CS1W-SCU31-V1
Serial Communications Unit.
*3
A CS1W-SCU31-V1 or CS1W-SCU41(-V1) Serial Communications Unit is required.
Settings at the Host
Connecting to a CS-series Serial Communications Board
Serial Communications Board equipped with an RS-422A/485 port for CSseries CPU Units:
CS1W-SCB41(-V1) (Port 2 is an RS-422A/485 port.)
CS-series Serial Communications Boards and Units with lot number 991220
(December 20, 1999) or later support the high-speed 1:N NT Link method.
Boards and Units with earlier lot numbers cannot be used.
Setting the Front Switches
Set the switches on the Serial Communications Board as shown below.
2-wire or 4-wire selector (WIRE):
4
(4-wire = RS-422A), or
2
(2-wire = RS-485)
Terminating resistance switch (TERM): ON (terminator ON = terminating resistance enabled)
RDY
COMM1
COMM2
Port 1
RS-232C
PORT1
Terminator Switch (TERM)
Set to ON (right side).
OFF
2
ON TERM
4 WIRE
Port 2
RS-422A/485
PORT2
(RS422/
RS485)
Wire Selection Switch (WIRE)
RS-422A: Set to 4 (right side) for 4-wire type.
RS-485: Set to 2 (left side) for 2-wire type.
SCB41
CPU Unit Allocation DM Area Settings
Setting is written from the Programming Device (a Programming Console or
CX-Programmer) directly into the allocation DM area (system setting area) of the CPU Unit. After the setting is written, it becomes effective by turning the power ON, restarting the Unit, restarting the communications port, or execution of the STUP command.
In the following table, the relevant word addresses in the allocation DM area and settings are shown.
Allocated DM Area words
Port 2
DM32010
Setting
8200
Setting Contents
N1:N NT Link Mode
114
Connecting to the Host’s RS-422A/485 Port
When using the Memory
Link Method
Section 5-2
Allocated DM Area words
Port 2
DM32011
DM32016
Setting
000A
000 @
Setting Contents
Baud rate (high-speed)
@ = The highest unit number of the connected
PTs (0 to 7)
For example, when connecting PTs with model numbers 3, 4, 5, and 6 to port
2, set the value 8200 hex to DM32010, 000A hex to DM32011, and 0006 hex to DM32016.
Connecting to a CS/CJ-series Serial Communications Board
CS/CJ-series Rack-mounting Units:
CS1W-SCU31-V1 (Port 1 and port 2 are both RS-422A/485 ports.)
CJ1W-SCU31-V1 (Port 1 and port 2 are both RS-422A/485 ports.)
CJ1W-SCU41(-V1) (Port 1 is an RS-422A/485 port.)
Setting the Front Switches
Set the unit number of the Serial Communications Unit using the rotary switches on the front of the Unit. Set the number or symbol in the setting display window in the following way using a flat-blade screwdriver. When using a
CS/CJ-series Serial Communications Unit set the switches as shown below.
2-wire or 4-wire selector (WIRE):
4
(4-wire = RS-422A), or
2
(2-wire = RS-485)
Terminating resistance switch (TERM): ON (terminator ON = terminating resistance enabled)
CPU Unit Allocation DM Area Settings
Setting is written from the Programming Device (a Programming Console or
CX-Programmer) directly into the allocation DM area (system setting area) of the CPU Unit. After the setting is written, it becomes effective by turning the power ON, restarting the Unit, restarting the communications port, or execution of the STUP command.
In the following table, the relevant word addresses in the allocation DM area and settings are shown.
m = DM 30000 + 100
× unit number
Setting Contents Allocated DM
Area words
Port 1 Port 2
m m+1 m+6 m+10 m+11 m+16
Setting
8200
000A
000 @
N:1 NT Link Mode
Baud rate (high-speed)
@ = The highest unit number of the connected PTs
(0 to 7)
With the memory link method, the connection can be made to a personal computer and an FA computer with RS-422A.
When connecting to the host with the memory link method, it is necessary to create a program for the memory link at the host side.
115
Connecting to the Host’s RS-422A/485 Port
Section 5-2
The following are the communications conditions that can be used with the memory link method. For the host (a personal computer, an FA computer, etc.), its setting should be compatible to one of the communications conditions listed in the following table. Set the same communications conditions at
the NT31/NT31C by the memory switch. (page 166).
Item
Input/Output board
Communications speed
Data bits length
Stop bits length
Parity
Flow control
Setting at Host
RS-422A
1200, 2400, 4800, 9600, 19200, 38400 bps.
7 bits, 8 bits
1 bit, 2 bits
None, even, odd
None, XON/XOFF
5-2-2 Direct Connection between RS-422A Ports at Both Units
The connection method in which the RS-422A ports of an NT31/NT31C and a host are connected is described here.
NT31/NT31C
Host link, CPU Unit,
Communications
Unit/Board
SYSMAC
CS/CJ-series PLC,
C-series PLC,
CVM1/CV-series
PLC, SRM1
25-pin connector
Serial port B
(RS-422A, 25-pin type)
9-pin connector or
25-pin connector
RS-422A cable with connectors (max. length: 500m)
Connecting an NT31/NT31C and Host (RS-422A)
NT31/NT31C
RS-422A
Host
Wiring When Connecting a C-series Host Link Unit or CPM1 (Host Link)
Applicable Units:
C200H-LK202-V1
3G2A5-LK201-EV1
C500-LK203
3G2A6-LK202-EV1
116
Connecting to the Host’s RS-422A/485 Port
1
13
Section 5-2
14
25
NT31/NT31C side
Abbreviation Pin number
FG
Connector hood
−
1
RS-232C/
422A/485 connector
SD
RD
RS
CS
−
SG
−
−
TRM
RDB (+)
SDB (+)
−
−
−
SDA (-)
RDA (-)
−
−
RSB (+)
−
23
RSA (-)
−
(25-pin type)
24
25
9
10
11
6
7
8
12
13
14
15
16
2
3
4
5
Shielding wire
PLC side
Pin number
Abbreviation
Connector hood
1
FG
RDB
2
3
4
5
6
7
8
−
−
−
SDB
RDA
FG
−
RS-422A connector
9
SDA
(9-pin type)
1
5
6
9
For details on handling shield wires, refer to 5-2-8 Handling the Shield on RS-
Wiring When Connecting CPM1, CPM2A, CPM2C, or SRM1
Applicable Units:
CPM1-10CDR@
CPM1A-10CD @-@
CPM1A-30CD @-@
CPM2A-30CD
@@-@
CPM2A-60CD @@-@
CPM2C-10 @@@@@@-@
SRM1-C02-V2
CPM1-20CDR@
CPM1A-20CD @-@
CPM1A-40CD @-@
CPM2A-40CD
@@-@
CPM2C-20 @@@@@@-@
Connect to the PLC through a CPM1-CIF11 RS-422A Adapter.
1
13
14
25
NT31/NT31C side
Abbreviation Pin number
FG
Connector hood
−
1
RS-232C/
422A/485 connector
SD
RD
RS
CS
−
SG
−
5
6
7
8
2
3
4
−
TRM
RDB (+)
SDB (+)
−
−
−
SDA (-)
RDA (-)
−
−
RSB (+)
RSA (-)
−
(25-pin type)
15
16
−
23
24
25
12
13
14
9
10
11
Shielding wire
PLC side
Abbreviation
FG
SG
SDB (+)
RS-422A terminal block
SDA (-)
RDB (+)
RDA (-)
(9-pin type)
FG
SG
SDB
SDA
RDB
RDA
For details on handling shield wires, refer to 5-2-8 Handling the Shield on RS-
117
Connecting to the Host’s RS-422A/485 Port
Section 5-2
Wiring When Connecting a CS-series Serial Communications Board, CS/
CJ-series Serial Communications Unit, C-series C200HX/HG/HE(-Z)E
Communications Board, CQM1H Serial Communications Board, or
CVM1/CV-series Host Link Unit
1
13
Applicable Units:
CS1W-SCU31-V1
CJ1W-SCU31-V1/CJ1W-SCU41(-V1)
CS1G-CPU42/43/44/45-E(V1)
CS1H-CPU63/64/65/66/67-E(V1)
CS1G-CPU42H/43H/44H/45H
CS1H-CPU63H/64H/65H/66H/67H
CS1D-CPU65H/67H (See note.)
C200HE-CPU32/42-(Z)E
C200HG-CPU33/43/53/63-(Z)E
C200HX-CPU34/44/54/64-(Z)E
C200HX-CPU65-ZE/85-ZE
CQM1H-CPU51/61
CV500-LK201 (communications port 2)
Note
A Serial Communications Board cannot be used.
14
25
NT31/NT31C side
Abbreviation Pin number
FG
Connector hood
−
1
RS-232C/
422A/485 connector
SD
RD
RS
CS
−
SG
−
2
3
4
5
6
7
8
−
TRM
RDB (+)
SDB (+)
−
−
−
SDA (-)
RDA (-)
−
−
RSB (+)
−
23
RSA (-)
−
(25-pin type)
24
25
14
15
16
9
10
11
12
13
Shielding wire
PLC side
Pin number
Abbreviation
Connector hood
1
FG
SDA
2
3
4
5
6
7
8
SDB
−
−
−
RDA
−
RDB
RS-422A connector
9
−
(9-pin type)
1
5
6
9
For details on handling shield wires, refer to 5-2-8 Handling the Shield on RS-
Wiring When Connecting a CVM1/CV-series CPU Unit
Applicable Units:
CV500-CPU01-EV1
CV2000-CPU01-EV1
CVM1-CPU01-EV @
CVM1-CPU21-EV @
CV1000-CPU01-EV1
CVM1-CPU11-EV @
CVM1/CV-series CPU Units whose model names do not have the suffix -EV @ cannot be connected by any connection method.
118
Connecting to the Host’s RS-422A/485 Port
Section 5-2
1
13
14
25
NT31/NT31C side
Abbreviation Pin number
FG
Connector hood
−
1
RS-232C/
422A/485 connector
SD
RD
RS
CS
−
SG
−
−
TRM
RDB (+)
SDB (+)
−
−
−
SDA (-)
RDA (-)
−
−
RSB (+)
−
23
RSA (-)
−
(25-pin type)
24
25
9
10
11
6
7
8
12
13
14
15
16
2
3
4
5
Shielding wire
PLC (CPU Unit) side
Pin number
Abbreviation
Connector hood
1
FG
SDA
2
3
4
5
6
7
8
SDB
−
RS
CS
RDA
−
RDB
RS-422A connector
9 −
(9-pin type)
1
5
6
9
For details on handling shield wires, refer to 5-2-8 Handling the Shield on RS-
Wiring for a Memory Link Connection
Prepare the adapter cable while referring to the following diagram.
1
13
14
25
NT31/NT31C side
RS-232C/
422A/485 connector
Abbreviation Pin number
FG
Connector hood
−
1
SD
2
3
RD
RS
4
CS
−
5
SG
−
6
7
8
−
TRM
RDB (+)
9
10
11
SDB (+)
−
−
−
SDA (-)
12
13
14
15
16
RDA (-)
−
−
RSB (+)
RSA (-)
−
−
23
24
25
(25-pin type)
Shielding wire
Host side
Abbreviation
Connector hood
SDA
SDB
RS
CS
ROA
ROB
RS-422A connector
For details on handling shield wires, refer to 5-2-8 Handling the Shield on RS-
5-2-3 Direct Connection between RS-485 Ports at Both Units
The connection method in which the RS-485 ports of an NT31/NT31C and a host are connected is described here.
119
Connecting to the Host’s RS-422A/485 Port
Section 5-2
Reference:
NT31/NT31C
CPU Unit
CS/CJ-series,
C200HX/HG/HE(-Z)E,
CQM1H PLC
25-pin connector
Serial port B
(RS-485, 25-pin type)
9-pin connector
RS-485 cable with connectors (max. length: 500 m)
When RS-485 is used at the PT side, only the NT link (1:N) method (standard or high-speed) can be used.
Connecting an NT31/NT31C and Host
NT31/NT31C Host
RS-485
Wiring When Connecting a CS-series Serial Communications Board, CS/
CJ-series Serial Communications Unit, C-series C200HX/HG/HE(-Z)E
Communications Board, or CQM1H Serial Communications Board
Applicable Units:
CS1W-SCU31-V1
CJ1W-SCU31-V1/CJ1W-SCU41(-V1)
CS1G-CPU42/43/44/45-E(V1)
CS1H-CPU63/64/65/66/67-E(V1)
CS1G-CPU42H/43H/44H/45H-E(V1)
CS1H-CPU63H/64H/65H/66H/67H-E(V1)
CS1D-CPU65H/67H (See note.)
C200HE-CPU32/42-(Z)E
C200HG-CPU33/43/53/63-(Z)E
C200HX-CPU34/44/54/64-(Z)E
C200HX-CPU65-ZE/85-ZE
CQM1H-CPU51/61
C200HX-CPU65-ZE/85-ZE
CQM1H-CPU51/61
Note
A Serial Communications Board cannot be used.
120
Connecting to the Host’s RS-422A/485 Port
Section 5-2
1
13
14
1
6
25
NT31/NT31C side
RS-232C/
422A/485 connector
Abbreviation
FG
Pin number
Connector hood
−
1
SD
RD
RS
CS
−
2
3
4
5
SG
−
6
7
8
−
TRM
RDB (+)
SDB (+)
−
−
−
SDA (-)
RDA (-)
−
−
RSB (+)
RSA (-)
−
−
23
24
25
12
13
14
9
10
11
15
16
(25-pin type)
Shielding wire
Pin number
Abbreviation
Connector hood
1
FG
SDA (-)
2
5
6
3
4
7
8
9
PLC (CPU Unit) side
SDB (+)
−
−
−
RDA (-)
−
RDB (+)
−
(9-pin type)
RS-422A connector
5
9
For details on handling shield wires, refer to 5-2-8 Handling the Shield on RS-
5-2-4 1:N Connection among RS-422A Ports
The connection method in which the RS-422A ports of multiple NT31/NT31Cs and one host are connected in a 1:N connection is described here.
CPU Unit
NT31/NT31C
Serial port B
(RS-422A, 25-pin type)
CS/CJ-series,
C200HX/HG/HE(-Z)E,
CQM1H PLC
9-pin connector
25-pin connector
Relay terminal block
Max. 2 m
24V
PRINTERPORT B
RS-422A cables
(max. total length 500 m)
Reference:
• Communications using the RS-422A standard NT link (1:N) method is possible only when a Serial Communications Board (CS Series only) or
Serial Communications Unit is installed in a CS/CJ-series PLC, a Communications Board is installed in a C200HX/HG/HE(-Z)E, or a CQM1H-
SCB41 Serial Communications Board is installed in a CQM1H.
121
Connecting to the Host’s RS-422A/485 Port
Section 5-2
• Communications using the RS-422A high-speed NT link (1:N) method is possible only when a Serial Communications Board (CS Series only) or
Serial Communications Unit is installed in a CS/CJ-series CPU Unit.
Connecting between
NT31/NT31C Units
The relay terminal block is not included in this figure. Insert the relay terminal block so as to achieve the wiring configuration shown below.
NT31/NT31C Host
RS-422A
∗
1
13
14
25
NT31/NT31C side
Abbreviation Pin number
FG
−
Connector hood
1
SD
RD
2
3
Shielding wire
RS-232C/
422A/485 connector
RS
CS
−
SG
−
−
TRM
RDB (+)
RDB (+)
−
−
−
SDA (-)
RDA (-)
11
12
13
14
15
16
9
10
7
8
4
5
6
∗
NT31/NT31C side
Pin number
Abbreviation
Connector hood
FG
1
−
2
3
SD
RD
4
5
6
7
8
−
9
10
11
12
13
14
15
16
RS
CS
−
SG
−
TRM
RDB (+)
RDB (+)
−
−
−
SDA (-)
RDA (-)
RS-232C/
422A/485 connector
1
13
14
25
−
RSB (+)
RSA (-)
−
(25-pin type)
−
23
24
25
−
−
23
24
25
RSB (+)
RSA (-)
−
(25-pin type)
*2
Make the connection between pin numbers 9 and 10 at the NT31/NT31C at the end of the RS-422A cable (marked
* in the figure above) only.
For details on handling shield wires, refer to 5-2-8 Handling the Shield on RS-
Connecting an NT31/NT31C and a Host
NT31/NT31C Host
RS-422A
122
Connecting to the Host’s RS-422A/485 Port
1
13
Section 5-2
Wiring When Connecting a CS-series Serial Communications Board, CS/
CJ-series Serial Communications Unit, C-series C200HX/HG/HE(-Z)E
Communications Board, or CQM1H Serial Communications Board
Applicable Units:
CS1W-SCU31-V1
CJ1W-SCU31-V1/CJ1W-SCU41(-V1)
CS1G-CPU42/43/44/45-E(V1)
CS1H-CPU63/64/65/66/67-E(V1)
CS1G-CPU42H/43H/44H/45H
CS1H-CPU63H/64H/65H/66H/67H
CS1D-CPU65H/67H (See note.)
C200HE-CPU32/42-(Z)E
C200HG-CPU33/43/53/63-(Z)E
C200HX-CPU34/44/54/64-(Z)E
C200HX-CPU65-ZE/85-ZE
CQM1H-CPU51/61
Note
A Serial Communications Board cannot be used.
14
25
NT31/NT31C side
Abbreviation Pin number
FG
Connector hood
−
1
RS-232C/
422A/485 connector
SD
RD
RS
CS
−
SG
−
5
6
7
8
2
3
4
−
TRM
RDB (+)
SDB (+)
−
−
−
SDA (-)
RDA (-)
−
−
RSB (+)
RSA (-)
−
−
23
24
25
12
13
14
9
10
11
15
16
(25-pin type)
Shielding wire
PLC side
Pin number
Abbreviation
Connector hood
1
FG
SDA (-)
2
3
4
5
6
7
8
SDB (+)
−
−
−
RDA (-)
−
RDB (+)
RS-422A connector
9
−
(9-pin type)
1
5
6
9
Next PT
For details on handling shield wires, refer to 5-2-8 Handling the Shield on RS-
123
Connecting to the Host’s RS-422A/485 Port
Section 5-2
5-2-5 1:N Connection among RS-485 Ports
The connection method in which the RS-485 ports of multiple NT31/NT31Cs and one host are connected in a 1:N connection is described here.
CPU Unit
NT31/NT31C
Serial port B
(RS-485, 25-pin type)
CS/JC-series,
C200HX/HG/HE(-Z)E,
CQM1H PLC
9-pin connector
Max. 2 m
25-pin connector
Relay terminal block
24V
PRINTERPORT B
RS-485 cables
(max. total length 500 m)
Reference:
• Communications using the RS-485 standard NT link (1:N) method is possible only when a CS/CJ-series Serial Communications Board (CS Series only) or Serial Communications Unit is installed in a CS/CJ-series PLC, a
Communications Board is installed in a C200HX/HG/HE(-Z)E, or a
CQM1H-SCB41 Serial Communications Board is installed in a CQM1H.
• Communications using the RS-485 high-speed NT link (1:N) method is possible only when a CS/CJ-series Serial Communications Board (CS
Series only) or Serial Communications Unit is installed in a CS/CJ-series
CPU Unit.
124
Connecting to the Host’s RS-422A/485 Port
Connecting between NT31/NT31C Units
NT31/NT31C
Section 5-2
Host
1
13
Connecting an NT31/
NT31C and a Host
RS-485
∗
14
NT31/NT31C side
Abbreviation Pin number
FG
−
Connector hood
1
SD
RD
2
3
RS-232C/
422A/485 connector
RS
CS
−
SG
−
TRM
−
RDB (+)
RDB (+)
−
−
−
SDA (-)
RDA (-)
7
8
9
10
4
5
6
11
12
13
14
15
16
Shielding wire
∗
NT31/NT31C side
Pin number
Abbreviation
Connector hood
FG
1
−
2
3
SD
RD
4
5
6
RS
CS
−
RS-232C/
422A/485 connector
−
7
8
9
10
11
12
13
14
SG
−
TRM
RDB (+)
RDB (+)
−
−
−
15
16
SDA (-)
RDA (-)
1
14
25 13 25
−
RSB (+)
RSA (-)
−
(25-pin type)
−
23
24
25
−
−
23
24
25
RSB (+)
RSA (-)
−
(25-pin type)
Next PT
*2
Make the connection between pin numbers 9 and 10 at the NT31/NT31C at the end of the RS-485 cable (marked
* in the figure above) only.
For details on handling shield wires, refer to 5-2-8 Handling the Shield on RS-
The relay terminal block is not included in this figure. Insert the relay terminal block so as to achieve the wiring configuration shown below.
NT31/NT31C Host
RS-485
Wiring When Connecting a CS-series Serial Communications Board, CS/
CJ-series Serial Communications Unit, C-series C200HX/HG/HE(-Z)E
Communications Board, or CQM1H Serial Communications Board
Applicable Units:
CS1W-SCU31-V1
CJ1W-SCU31-V1/CJ1W-SCU41(-V1)
125
Connecting to the Host’s RS-422A/485 Port
Section 5-2
1
13
CS1G-CPU42/43/44/45-E(V1)
CS1H-CPU63/64/65/66/67-E(V1)
CS1G-CPU42H/43H/44H/45H
CS1H-CPU63H/64H/65H/66H/67H
CS1D-CPU65H/67H (See note.)
C200HE-CPU32/42-(Z)E
C200HG-CPU33/43/53/63-(Z)E
C200HX-CPU34/44/54/64-(Z)E
C200HX-CPU65-ZE/85-ZE
CQM1H-CPU51/61
14
Note
A Serial Communications Board cannot be used.
25
NT31/NT31C side
Abbreviation Pin number
FG
Connector hood
−
1
RS-232C/
422A/485 connector
SD
RD
RS
CS
−
SG
−
−
TRM
RDB (+)
SDB (+)
−
−
−
SDA (-)
RDA (-)
−
−
RSB (+)
15
16
RSA (-)
−
(25-pin type)
−
23
24
25
12
13
14
9
10
11
6
7
8
2
3
4
5
Next PT
Shielding wire
PLC (CPU Unit) side
Pin number Abbreviation
Connector hood
1
FG
SDA (-)
2
3
4
SDB (+)
−
−
RS-422A connector
5
6
7
8
−
RDA (-)
−
RDB (+)
9 −
(9-pin type)
1
5
6
9
For details on handling shield wires, refer to 5-2-8 Handling the Shield on RS-
5-2-6 Recommended Connectors, Cables and Crimp Terminals
Connectors and Cables Recommended for RS-422A/485
When making an RS-422A/485 connecting cable, as far as possible use the recommended parts indicated in the table below. When using the memory link method, however, use a connector that matches with the RS-422A port at the
CPU Unit (CP). Some Units come supplied with one connector and connector hood.
126
Connecting to the Host’s RS-422A/485 Port
Note
Section 5-2
Check the required parts and prepare them in advance.
Name
Connector
Connector hood
Cable
Crimp terminals
Model
XM2A-0901
XM2S-0911
Maker
9-pin type
Made by OMRON
9-pin type
Made by OMRON
XM2S-0911-E 9-pin type
Made by JAE
TKVVBS4P-03 Tachii Electric Wire
Co., Ltd.
1.25-N3A
(fork type)
Japan Solderless
Terminal MFG
Y1.25-3.5L
(fork type)
Molex Inc.
Remarks
Delivered with the following Units:
CS/CJ-series CPU Units
C-series C200HS CPU Units
C200HX/HG/HE(-Z) CPU Units
CVM1/CV-series CPU Units
CV500-LK201
Delivered with the following Units:
C-series C200HS CPU Units
C200HX/HG/HE(-Z) CPU Units
CVM1/CV-series CPU Units
CV500-LK201
Delivered with the following Units:
CS/CJ-series CPU Units
---
Recommended wire size:
AWG22 to AWG18
(0.3 to 0.75 mm
2
)
The terminal screws of the RS-422A adaptor (CPM1-CIF11) are M3 specification. When wiring, use crimp terminals for M3 use. Tighten terminal screws with a tightening torque of 0.5 N
⋅m.
Use the same specification of the terminal screws which is used in the relay terminal block.
Always use crimp terminals for wiring.
Examples of applicable terminals
Fork type Round type
6.2 mm max.
6.2 mm max.
5-2-7 Setting the Terminal Resistance for RS-422A/485
Communications
The serial port B connector of the NT31/NT31C has a terminal resistance setting terminal (TRM).
In RS-422A/485 communications, a terminal resistor must be set at the device at the end of the communications cable, but not at any other device.
The NT31/NT31C has a built-in terminal resistor, and whether or not the terminal resistance is applied is set by the wiring at the terminal resistance setting terminals (pins No. 9 and 10 of serial port B). The terminal resistance is
120
Ω. When carrying out RS-422A/485 communications using serial port B, short between terminals No. 9 and 10 at the NT31/NT31C at the end of the
RS-422A/485 cable. Leave terminals No. 9 and 10 open at NT31/NT31C PTs other than the one at the end of the cable.
When not using RS-422A/485 communications, the terminal resistance setting is ineffective.
In order to set the terminal resistance, wiring work is required at the cable’s connector: carry out the wiring correctly by referring to APPENDIX E Making the Cable.
127
Connecting to the Host’s RS-422A/485 Port
Section 5-2
Abbreviation Pin number
-
FG
-
Connector hood
-
-
-
-
TRM 9
RDB (+)
SDB (+)
-
10
11
12
-
-
-
25
Terminal resistor setting
Pin Nos. 9 and 10
Shorted
Open
Function
Terminal resistance is applied.
Short only at the NT31/NT31C connected to the end of an RS-
422A/485 cable.
Terminal resistance is not applied.
Leave the terminals open when connecting an NT31/NT31C anywhere other than at the end of the RS-422A/485 cable.
Note
Reference:
Before connecting or disconnecting cables between devices, make sure that the power supply to all of the connected devices (NT31/NT31C, PLC, etc.) is
OFF.
• The internal circuit of the NT31/NT31C is shown below.
+
−
10 (RDB)
16 (RDA)
Terminal resistor (120
Ω)
9 (TRM)
Making a connection here inserts a terminator between + (RDB) and - (RDA).
• For details on setting the terminal resistance of the host, refer to setting methods for each type of the communications.
5-2-8 Handling the Shield on RS-422A/485 Cables
Perform the following procedures to connect, process the shield, and connect to ground for communications systems using the RS-422A/485. Incorrect connection may result in communications errors with the host.
Connecting the Ground Wire
The PT has a functional ground terminal (FG: ).
1,2,3...
1.
Ground according to Figure (a) for normal grounding.
• Connect the ground terminal (GR) of the devices to the functional ground
(FG: ).
Make sure that each signal line is grounded at only one point and ground to 100
Ω max.
• Short the LG terminal of the PLC to the ground terminal (GR).
• Use a wire gauge of at least 2mm
2
for the ground wire.
• Refer to the manual for individual Communications Units for details on proper wiring procedures.
2.
Do not ground the functional ground (FG: ) of the PT if it is mounted to the same panel as devices that generate noise, such as motors or inverters, as shown in Figure (b).
128
Connecting to the Host’s RS-422A/485 Port
Section 5-2
Preparing the Shield of RS-422A/485 Connectors
Always prepare RS-422A/485 cable shields properly. Otherwise, communications errors may occur with the host.
Ground only one end of the shield when connecting the ground terminal (GR) of the devices to the functional ground (FG: ), and grounding each signal line at only one point and to 100
Ω max, as shown in Figure (a).
Ground both ends of the shield when not grounding the functional ground
(FG: ) of the PT, as shown in Figure (b).
When using a CJ1M-CIF11 alone or combined with an NT-AL001, be sure to connect, process the shield, and connect to ground as shown in Figure (b).
Example of Recommended Wiring
Signal line
Signal line
129
Connecting to the Host’s RS-422A/485 Port
Section 5-2
130
SECTION 6
System Menu Operation
This section describes the operation of the System Menu, focusing on the procedure to start the PT. Functions that are convenient when using the PT and those that are useful for system maintenance are also explained here.
6-2-1 Operation at Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-3 Operation Modes and the System Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-3-1 Relationships among Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-3-3 Operations with the System Menu . . . . . . . . . . . . . . . . . . . . . . . . . .
6-4-1 Clearing Screen Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-4-2 Initializing Display History Record Data. . . . . . . . . . . . . . . . . . . . .
6-4-3 Initializing Alarm History Record Data. . . . . . . . . . . . . . . . . . . . . .
6-4-4 Initializing the Recipe Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-4-5 Initializing the Memory Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-4-6 Initializing the Memory Switches . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5 Operations in the System Installer Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-1 Setting the Display Language in the System Installer Mode . . . . . .
6-5-2 Clearing/Installing the System Program . . . . . . . . . . . . . . . . . . . . .
6-5-3 Changing the System Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-4 Clearing Screen Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-7 Setting Conditions for Communications with Host by Using Memory Switches 158
6-7-1 About Communications Conditions. . . . . . . . . . . . . . . . . . . . . . . . .
6-7-2 Setting the Host Link Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-7-3 Setting the NT Link (1:1) Method . . . . . . . . . . . . . . . . . . . . . . . . . .
6-7-4 Setting the NT Link (1:N) Method (Standard/High-speed) . . . . . . .
6-7-5 Setting the Memory Link Method . . . . . . . . . . . . . . . . . . . . . . . . . .
6-7-6 Setting the Communications Type for Serial Port B . . . . . . . . . . . .
6-9-1 Memory Switch Setting Screens . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-9-2 Setting the Start-up Wait Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-9-3 Setting the Key Press Sound . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-9-4 Setting the Buzzer Sound . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-9-5 Setting the Printer Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-9-6 Setting the Print Method (NT31C Only) . . . . . . . . . . . . . . . . . . . . .
6-9-7 Setting Screen Saver Movement . . . . . . . . . . . . . . . . . . . . . . . . . . .
131
132
6-9-8 Setting the Screen Saver Start-up Time. . . . . . . . . . . . . . . . . . . . . . .
6-9-9 Setting the History Display Method . . . . . . . . . . . . . . . . . . . . . . . . .
6-9-10 Setting the Resume Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-9-11 Setting the Automatic Reset Function. . . . . . . . . . . . . . . . . . . . . . . .
6-9-12 Setting the Time-out Interval. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-9-13 Setting the Retry Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-10 Setting the Bar Code Reader Input Function. . . . . . . . . . . . . . . . . . . . . . . . . .
6-11-2 Displaying/Setting the Calendar and Clock . . . . . . . . . . . . . . . . . . .
6-11-3 Checking the PT Setting Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-11-4 Displaying and Printing the Display History Record . . . . . . . . . . . .
6-11-5 Displaying and Printing the Alarm History Record . . . . . . . . . . . . .
6-11-6 Checking Screen Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-12-2 Connection Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-13-1 Compatible Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-13-2 Connection Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Menu Operation Flow
Section 6-1
6-1 System Menu Operation Flow
Follow the procedure below when using the NT31/NT31C for the first time or changing the system program.
Create the Screen Data
Start Up the NT31/NT31C
(Display the System
Initialize the Memory
Create the data to be displayed on the NT31/NT31C by using the Support
Tool.
For details on creating screen data, refer to the NT-series Support Tool Ver.
4.
@ for Windows Operation Manual (V061-E1-@).
Turn ON the power to the NT31/NT31C.
If no screen data has been registered, an error message is displayed. In this case, press the OK touch switch on the error message screen to display the
System Menu.
If screen data has been registered and the RUN mode is established, perform the appropriate operations on the touch panel to display the System Menu.
If necessary, initialize the memory of the NT31/NT31C by operation from the
System Menu.
Transmit the Screen Data
Set the Memory Switches
Connect the Support Tool to the NT31/NT31C and transmit the screen data from the Support Tool to the NT31/NT31C.
For details on connecting the Support Tool, refer to 3-2 Connecting to the
Select the System Menu and set the operations of the NT31/NT31C — for example the conditions for communications with the host — using the memory switches.
Connect the NT31/NT31C to the host and start operation.
System Maintenance
If an error occurs during operation, check the I/Os, settings, etc., by referring to this guide.
6-2 Starting the NT31/NT31C
After checking that the hardware has been connected correctly, switch on the power to the NT31/NT31C to start it up.
This section describes the operation of the NT31/NT31C when it is started up.
6-2-1 Operation at Startup
The NT31/NT31C operates as follows when the power is switched ON, or when it is reset.
Initial Processing
Self diagnosis — including a check on the internal memory of the NT31/
NT31C and a system program check — and the internal processing required for startup, are performed.
If an error occurs during initial processing, an error screen is displayed.
If there is an error in the system program, the system program must be re-
installed. For details on the installation procedure, refer to 6-5 Operations in
133
Starting the NT31/NT31C
Memory Unit Check and
Processing
Start of Communications with the Host
Operation Start
Section 6-2
Check if a Memory Unit is installed. If a Memory Unit is installed, processing
(screen data and system program reading/writing) is executed in accordance
with its DIP switch settings (page 36).
If there is an error in the screen data, an error screen is displayed. Pressing the OK touch switch on the error screen will return the display to that immediately before the error occurred. It is also possible to display the System Menu from the error screen by pressing two of the four corners of the touch panel simultaneously. If there is an error in the system program, the main menu of the system installer mode is displayed. If this is the case, reinstall the proper system program.
Initialize the memory or change the settings as required.
Communications with the host starts in accordance with the communications method set in the system memory of the NT31/NT31C. During the interval until communications are established, the system initialization screen (screen
No. 9000) is displayed.
For details, refer to 6-8 Starting Operation.
If the system initialization screen remains on, display the System Menu by pressing two of the four corners of the touch panel simultaneously, and check the settings for the communications conditions for communications with the host.
The RUN mode is established, and operation starts in accordance with the screen data in the NT31/NT31C.
When changing the settings or checking the statuses, perform the appropriate operation by displaying the System Menu. For details on displaying the Sys-
tem Menu, refer to 6-3-3 Operations with the System Menu (page 138).
134
Operation Modes and the System Menu
Section 6-3
6-3 Operation Modes and the System Menu
The NT31/NT31C operates in four modes: the RUN, Transmit, Maintenance, and Expansion modes. These modes are selected from the System Menu.
In addition, the NT31/NT31C also features the System Installer mode which is used specifically for installing the system program.
The System Installer mode is selected by operation at the panel when the
NT31/NT31C power is switched ON.
6-3-1 Relationships among Modes
The relationships among the System Menu, each of the operation modes, and the System Installer mode, are indicated in the figure below.
For details on system menu operation, refer to 6-3-3 Operations with the Sys-
[RUN Mode]
This is the mode in which the NT31/NT31C operates.In this mode the NT31/NT31C can be controlled from the host, and various display and
I/O operations are possible.
[Transmit Mode]
In this mode, screen data and other data are transmitted between the
Support Tool and the
NT31/NT31C.
When system settings and screen data registration have been completed
Power ON
To change system settings or screen data contents.
If there is no system program, or if the settings for data control are changed...
Items in the System Menu
To change system settings or screen data contents
[Maintenance Mode]
In this mode,
NT31/NT31C maintenance operations, such as initialization of the memory, checking settings, and the I/O check, are executed.
SYSTEM MENU
Quit
Transmit Mode
Maintenance Mode
Expansion Mode
[Expansion Mode]
In this mode, the
Programming Console function is used, or check the version of system program.
[System Installer Mode]
In this mode, the system program of the
NT31/NT31C is installed, display of the
System Menu is enabled or disabled, and screen data changes are enabled and disabled, among other operations.
The items displayed in the system menu and their functions are as follows.
Quit
Menu Item
Transmit Mode
Function
Clear the System Menu screen and return to the RUN mode screen.
Display the Transmit Mode screen to allow transmission for screen data between the Support Tool and the NT31/NT31C.
For details on transmission of screen data, refer to 6-6 Transmit-
135
Operation Modes and the System Menu
Functions of the System
Installer Mode
Section 6-3
Menu Item
Maintenance Mode Display the Maintenance Mode menu to allow system maintenance of the NT31/NT31C, and various NT31/NT31C settings.
Expansion Mode
Function
Display the Expansion Mode menu to allow selection of the expansion functions supported by the NT31/NT31C. The following expansion functions are supported:
• Version Display
Displays the version of system program, the date it was cre-
ated, and the PT model. For details, refer to 6-14 Version Dis-
• Programming Console Function
Allows the NT31/NT31C to be used as a Programming Console for a CS/CJ-series PLC, CPM1, CPM2A, CPM2C, CQM1,
CQM1H, C200HX/HG/HE(-Z), or SRM1.
For details, refer to 6-12 Programming Console Function.
• Device Monitor Function
Allows the NT31/NT31C to change the PLC’s operating mode and display/change the contents of words in a CS/CJ-series
PLC, CPM1, CPM2A, CPM2C, CQM1, CQM1H, C200HX/HG/
HE(-Z), or SRM1. For details, refer to 6-13 Device Monitor
Function in this manual or 2-16 Device Monitor Function in the
Reference Manual.
The following functions can be executed in the System Installer mode.
• Setting the display language
• Clearing and installing system programs
• Disabling/enabling display of the System Menu.
• Disabling/enabling writing to the screen data memory
• Clearing screen data
For details on these functions, refer to 6-5 Operations in the System Installer
136
Operation Modes and the System Menu
Section 6-3
6-3-2 Menu Tree
SYSTEM INSTALLER MODE
Exit System Installer
Download System Program (page 152)
Change System Settings (page 153)
The System Menu allows the various functions of the NT31/NT31C to be executed by using touch switches displayed on the touch panel. The menu tree, starting from the System Menu, is shown below.
For details on System Menu operations, refer to 6-3-3 Operations with the
The menu tree may differ according to the system program installed in the
NT31/NT31C. The menu tree for the system program that is installed in the
NT31/NT31C on shipment is shown below.
SYSTEM MENU
Quit
Maintenance Mode
Expansion Mode
MAINTENANCE
MODE MENU
Quit
Memory Init.
Memory Switch
I/O Settings
Display History
Alarm History
I/O Check
MEMORY INIT. MENU
Quit
MEMORY
SWITCH MENU
Screen Saver Movement (page 176)
Screen Saver Start up Time (page 178)
I/O CHECK MENU
Quit
I/F Check
Device Check
EXPANSION
MODE MENU
Quit
Programming Console Function (page 219)
Device Monitor Function (page 225)
I/F CHECK MENU
Quit
DEVICE CHECK MENU
Quit
I/O SETTINGS MENU
Quit
DISPLAY HISTORY MENU
Quit
ALARM HISTORY MENU
Quit
137
Operation Modes and the System Menu
Section 6-3
6-3-3 Operations with the System Menu
This section describes how to use the menus, including how to call the System Menu, how to call the System Installer mode, and how to select menu items.
Calling the System Menu
Reference:
The System Menu can be displayed by either of the following two methods.
• Touching the corners of the touch panel
• Pressing a touch switch that displays the System Menu
• If display of the System Menu is disabled by the setting made in the System Installer mode, the System Menu cannot be displayed (this does not apply if an error has occurred).
• At the same as the System Menu is displayed, the operation of the NT31/
NT31C stops and the RUN LED goes OFF.
Touching The Corners of The Touch Panel
When two of the four corners of the touch panel (see the figure below) are touched simultaneously, the System Menu is displayed.
RUN mode
POWER
RUN
Press any two of the four corners at the same time.
[SYSTEM MENU]
Quit
Transmit Mode
Maintenance Mode
Expansion Mode
Calling the System
Installer Mode
Reference:
Note that the touch switches used to call the System Menu are not displayed at corners on the screen. If a touch switch displayed in a corner is pressed first, the touch switch will function and the System Menu will not be displayed.
In particular, when the touch switch has switch screen function, as a result of screen switch over, it means the corner is not pressed even if it is kept pressing. To successfully call the System Menu, first press a corner where no touch switch is displayed, and then press any other corner regardless of the presence of a touch switch.
With the NT31/NT31C, the System Menu can be displayed even if the screen has touch switches registered at all four corners.
Pressing a Touch Switch That Displays The System Menu
There is a control key that has the function of displaying the System Menu.
By registering the touch switch for System Menu display ([MENU]) on a screen when creating it, the System Menu can be displayed just by pressing this switch.
If the NT31/NT31C has no system program installed, or if the system program is destroyed, the System Installer mode is automatically established when the power is switched ON.
To establish the System Installer mode in order to install a system program or make settings for data management, either turn the power ON, or reset the
NT31/NT31C, while pressing the touch switch at the top left corner of the touch panel (size: 7.2 mm
× 7.2 mm).
138
Operation Modes and the System Menu
Section 6-3
Switch the power to the NT31/NT31C ON while pressing this touch switch.
POWER
RUN
Selecting Menu Items
The menu items in the System Menu are displayed on the NT31/NT31C screen as touch switches. Menu items can be selected simply by pressing them.
Example: Displaying the MAINTENANCE MODE MENU screen by pressing
Maintenance Mode in the System Menu.
Ver 4.12
Press Maintenance Mode.
Switching from the
System Menu to the RUN
Mode
Reference:
Return to the RUN mode by selecting Quit in the System Menu and other menus.
Unlike previous PT models, the NT31/NT31C does not return to the RUN mode automatically if no operations are performed.
139
Memory Initialization
Section 6-4
6-4 Memory Initialization
Reference:
The NT31/NT31C has the following initialization functions. Use them as necessary.
• Clearing screen data
• Initializing memory tables
• Initializing memory switches
• Initializing display history record data
• Initializing alarm history record data
• Initializing recipe tables
If writing to the screen data memory has been disabled by the System Setting setting in the System Installer mode, memory initialization is not possible.
6-4-1 Clearing Screen Data
Use this function if the screen data has been corrupted and the NT31/NT31C cannot be started up correctly.
This operation clears (initializes) only the screen data and contents of the mathematical tables. The memory switch settings and display history/alarm history record data are retained.
Reference:
• When this function is used, all of the screen data contents registered in the NT31/NT31C up to that point are cleared. Check that the created screens are backed up at the Support Tool before using it.
• The screen data can be cleared in the System Installer mode too
• The following types of data can be initialized individually.
Contents of numeral/character string memory tables (page 147)
Memory switch settings (page 149)
Display history record data (page 142)
Alarm history record data (page 144)
140
Memory Initialization
Section 6-4
Clear the screen data by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Init..
Select Screen Data.
Select Yes.
The screen data is cleared. During clearance, the message Erasing Now... is displayed.
If No is selected, the NT31/NT31C returns to the MEMORY INIT. MENU screen without clearing the screen data.
On completion of screen data clearance, the NT31/NT31C returns to the
MEMORY INIT. MENU screen.
After the screen data has been cleared, if an attempt is made to set the NT31/
NT31C to the RUN mode before screen data has been transmitted from the
Support Tool or Memory Unit, an error message will be displayed and the
RUN mode will not be established.
141
Memory Initialization
Section 6-4
6-4-2 Initializing Display History Record Data
Reference:
The display history record function keeps a record of the order of display of the screens displayed during operation, and the number of times each screen is displayed. These records are kept only for screens for which the History attribute has been set.
The maximum number of records is 1024 for sort by occurrence (order of display occurrence) and 255 for sort by frequency (order of the number of times each screen has been displayed).
Use the display history record initialization function to clear the history record data to 0, for example when the screen data has been changed, etc. Also, if
Alarm (Use Ring Buffer) under History Setting of System in PT Configuration
(Tools) has not been checked, no more records will be stored after the maximum number of records has been kept, and therefore the records must be periodically initialized. If Alarm (Use Ring Buffer) is checked, when the maximum number of records is reached the oldest record is deleted and the newest data is recorded.
The NT31/NT31C also allows the display history record data to be initialized by controlling the PT status control area from the host. For details, refer to 2-2-1
PT Status Control Area in the Reference Manual.
142
Memory Initialization
Section 6-4
Initialize the display history record data by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Init..
Select Display History.
Select Yes.
The display history record data is initialized.
During initialization, the message Initializing is displayed.
If No is selected, the NT31/NT31C returns to the MEMORY INIT. MENU screen without initializing the display history record data.
On completion of display history record data initialization, the message Finished is displayed and the NT31/NT31C returns to the MEMORY INIT. MENU screen.
143
Memory Initialization
Section 6-4
6-4-3 Initializing Alarm History Record Data
Reference:
The alarm history record function continually checks the status of host bits that have been designated in advance with a bit memory table, and records the time when any of the bits is set to 1 (comes ON), and the number of times that each bit comes ON.
The maximum number of records is 256 for sort by occurrence (order of error occurrence) and 255 for sort by frequency (order of the number of times each error has occurred).
Use the alarm history record initialization function to reset the alarm history record data to 0, for example when the screen data has been changed, etc.
Also, if Screen (Use Ring Buffer) under History Setting in the PT Environment
Settings – System Settings has not been checked, no more records will be stored after the maximum number of records has been kept, and therefore the records must be periodically initialized. If Screen (Use Ring Buffer) is checked, when the maximum number of records is reached the oldest record is deleted and the newest data is recorded.
The NT31/NT31C also allows the alarm history record data to be initialized by controlling the PT status control area from the host. For details, refer to 2-2-1
PT Status Control Area in the Reference Manual.
144
Memory Initialization
Section 6-4
Initialize the alarm history record data by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Init..
Select Alarm History.
Select Yes.
The alarm history record data is initialized.
During initialization, the message Initializing is displayed.
If No is selected, the NT31/NT31C returns to the MEMORY INIT. MENU screen without initializing the alarm history record data.
On completion of alarm history record data initialization, the message Finished is displayed and the NT31/NT31C returns to the MEMORY INIT. MENU screen.
145
Memory Initialization
Section 6-4
6-4-4 Initializing the Recipe Tables
You can initialize the recipe tables (i.e., all the recipe data) edited in the NT31/
NT31C. Here, “initializing” the recipe tables means to restore the battery backup memory (“recipe data memory”) to the values in flash memory at that time. If, after downloading from the Support Tool, you do not upload the data even once, initialization will restore the initial values set using the Support
Tool. The values will not be cleared.
Initialize the recipe tables by following the menu operation from the System
Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Init..
Select Recipe Table.
Select Yes.
The recipe tables are initialized. During initialization, the message Initializing is displayed.
If No is selected, the NT31/NT31C returns to the MEMORY INIT. MENU screen without initializing the recipe tables.
On completion of memory table initialization, the message Finished is displayed and the NT31/NT31C returns to the MEMORY INIT. MENU screen.
146
Memory Initialization
Section 6-4
6-4-5 Initializing the Memory Tables
It is possible to initialize the numeral memory tables and character string memory tables in the NT31/NT31C.
When these tables are initialized, the values are returned to those set by the
Support Tool (they are not cleared).
When the memory tables are initialized, they are returned to their initial values
regardless of the setting made for the resume function (page 182).
If ON is set for the Resume Function memory switch, the initial values set with the Support Tool will not be recorded in the memory tables unless they are initialized.
Reference:
• If OFF is set for the Resume Function memory switch, the memory tables can be initialized just by switching the NT31/NT31C power off and back
on again, or by resetting the NT31/NT31C (page 182).
• The bit memory table merely reflects the statuses of bits at the host and therefore cannot be initialized.
147
Memory Initialization
Section 6-4
Initialize the memory tables by following the menu operation from the System
Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Init..
Select Memory Table.
Select Yes.
The memory tables are initialized. During initialization, the message Initializing is displayed.
If No is selected, the NT31/NT31C returns to the MEMORY INIT. MENU screen without initializing the memory tables.
On completion of memory table initialization, the message Finished is displayed and the NT31/NT31C returns to the MEMORY INIT. MENU screen.
148
Memory Initialization
Section 6-4
6-4-6 Initializing the Memory Switches
Initialization returns all the memory switches of the NT31/NT31C to their status on shipment.
Initialize the memory switches by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Init..
Select Memory Switch.
Select Yes.
The memory tables are initialized.
During initialization, the message
Initializing is displayed.
If No is selected, the NT31/NT31C returns to the MEMORY INIT. MENU screen without initializing the memory switches.
On completion of memory switch initialization, the message Finished is displayed and the NT31/NT31C returns to the MEMORY INIT. MENU screen.
149
Operations in the System Installer Mode
Section 6-5
After initialization, the memory switch statuses are as follows.
Memory Switch
Start-up Wait Time
Key Press Sound
Buzzer Sound
Printer Controller
Print Method
Screen Saver Movement
Screen Saver Start up Time
Hist. Disp. Method
Resume Function
Comm. Auto-return
Time-out Interval
Retry Counts
Comm. A Method
Comm. B Select
Comm. B Method
Status
00
ON
OFF
ESC/P
Tone (NT31C only)
Display erased
010
From New Data
OFF
OFF
01
005
Host Link (communications speed = 9600 bps)
*
RS-232C
None
*
The communications conditions for a bar code reader are initialized as follows:
Data bits: 7 bits; stop bit: 1 bit; parity: none; flow control: RS/CS.
6-5 Operations in the System Installer Mode
The following functions can be executed in the System Installer mode:
• Setting the display language (see below)
• Clearing/installing the system program (page 151)
• Disabling/enabling display of the System Menu (changing the system set-
• Disabling/enabling writing to the screen data memory (changing the sys-
• Clearing screen data (page 154)
For details on calling the System Installer mode, refer to Calling the System
For details, refer to 3-5 Using a Memory Unit.
150
Operations in the System Installer Mode
Section 6-5
6-5-1 Setting the Display Language in the System Installer Mode
The first setting made in the System Installer mode is to select whether the display language is to be English or Japanese.
Select English or Japanese.
From here on, this manual assumes that
English has been selected here.
The System Installer mode menu is displayed.
If there is no system program or the system program has been corrupted, the message System Program not exist or incorrect. is displayed at the bottom of the screen.
6-5-2 Clearing/Installing the System Program
Use this function when the system program of the NT31/NT31C has been corrupted, or when installing a new system program.
Reference:
• In order to install a system program, the system installer must also be installed at the Support Tool. The system installer is an accessory with the
Support Tool (NT-ZJCAT1-EV4). When installing the Support Tool in a personal computer, install the system installer also. For details on the method for installing the system installer at the Support Tool side, and the operating procedure, refer to the NT-series Support Tool Ver. 4. @ for Win-
dows Operation Manual (V061-E1-
@).
• When the system program is cleared by mistake, it becomes impossible to use the NT31/NT31C at all. Check that the system installer is installed at the Support Tool side before deleting the program. However, note that the registered screen data and memory switch settings are retained.
• It becomes possible to install the system program inside the Memory Unit
automatically by installing the Memory Unit at startup. (Refer to 3-5 Using
Clear/install the system program by following the menu operation from the
System Installer mode menu shown below.
151
Operations in the System Installer Mode
Clearing the System
Program
Section 6-5
Select Download System Program.
Select Yes.
The system program is cleared.
During clearance, the message
Erasing ... is displayed.
Downloading the System
Program
• If Return to Menu is selected, the NT31/NT31C returns to the System
Installer mode menu without clearing the system program.
• If clearance fails, a screen asking whether you wish to try again is displayed.
On completion of system program clearance, the NT31/NT31C enters the standby status for downloading of the system program.
On normal completion of system program clearance, the standby status for system program downloading is automatically established.
When the NT31/NT31C enters this status, transmit the system program from the system installer at the personal computer.
During downloading, the progress of transmission is indicated on the screen.
Select Run System.
If Abort is selected during standby for downloading or during downloading, a screen asking whether you wish to download again is displayed.
When the system program is started, the NT31/NT31C starts up normally. If no screen data has been registered, an error message will be displayed indicating that screen data hasn’t been registered. Transfer the screen data and proceed.
152
Operations in the System Installer Mode
Section 6-5
Reference:
If the new system program is not downloaded successfully after deleting a system program, it is not possible to use the NT31/NT31C at all. After deleting the system program, be sure to download a new one.
6-5-3 Changing the System Settings
The NT31/NT31C allows the following settings to be made to prevent the screen data and memory switch settings from being changed or deleted by operating errors.
Disabling/enabling System Menu Display
When System Menu display is disabled by this setting, the System Menu cannot be displayed by touch panel operations or by using the touch switches.
However, if a error occurs, the System Menu can be displayed from the error message screen.
Disabling/enabling Writing to The Screen Data Memory
When writing to the screen data memory is disabled by this setting, it is impossible to use the following System Menu functions.
• Switching to the Transmit mode
• Displaying the memory switch setting screens
• Checking the screen data memory
• Displaying the initialization menu
• Displaying the calendar/time setting screen (the calendar/time display screen can be displayed)
153
Operations in the System Installer Mode
Section 6-5
Change the system settings by following the menu operation from the System
Installer mode menu shown below.
Select Change System Settings.
Select Display System Menu or Screen
Memory Protect.
Each time either of these items is selected, the setting switches from Disabled to
Enabled or vice versa.
Select OK.
The settings are written to the NT31/NT31C while the screen is displayed.
• If Cancel is selected, the NT31/NT31C returns to the System Installer mode menu without changing the settings. The settings remain as they were before the operation was started.
• If writing of the settings fails, a screen asking whether you wish to try again is displayed.
After the settings have been written, the System Installer mode menu screen is redisplayed.
6-5-4 Clearing Screen Data
If the screen data has been corrupted and the NT31/NT31C cannot be started normally, use this function to clear the screen data.
Note that only the screen data is cleared (initialized), and the memory switch settings and the display history/alarm history record data are retained.
Reference:
• When this function is used, all of the screen data contents registered in the NT31/NT31C up to that point are cleared. Check that the created screens are backed up at the Support Tool before using it.
• The screen data can also be cleared from the System Menu (page 140).
154
Transmitting the Screen Data
Section 6-6
• If the screen data is cleared in the System Installer mode, the message
Screen Data Corrupted may be displayed on switching to the RUN mode.
If this happens, initialize the screen data again from the MEMORY INIT.
MENU screen.
Clear the screen data by following the menu operation from the System
Installer mode menu shown below.
Select Erase Screen Data.
Select Yes.
The screen data is cleared. During clearance, the message Erasing ... is displayed.
• If Return to Menu is selected, the NT31/NT31C returns to the MEMORY
INIT. MENU screen without clearing the screen data.
• If screen data clearance fails, a screen asking if you wish to try again is displayed.
On completion of screen data clearance, the NT31/NT31C returns to the System Installer mode menu screen.
After the screen data has been cleared, if an attempt is made to set the NT31/
NT31C to the RUN mode before screen data has been transmitted from the
Support Tool or Memory Unit, an error message will be displayed and the
RUN mode will not be established.
6-6 Transmitting the Screen Data
The screen data is created with the Support Tool and then transmitted to the
NT31/NT31C. This section explains how to transmit the screen data.
For details on how to create the screen data and the operation of the Support
Tool, refer to the Reference Manual and the NT-series Support Tool Ver. 4.
@
for Windows Operation Manual (V061-E1-
@).
Reference:
• The screen data can be transmitted also from the Memory Unit installed
in the NT31/NT31C. For details on this method, refer to 3-5 Using a Mem-
• The screen data can be transmitted at a faster rate by setting High for
Baud Rate on the Comms. Setting... window of the Support Tool.
155
Transmitting the Screen Data
Section 6-6
• If writing to the screen data memory is disabled by the setting made for
System Setting in the System Installer mode, screen data transmission is not possible.
Screen Data Composition and Transmission Units
Transmitting Screen Data from the Support Tool
1,2,3...
The screen data comprises the following types of data.
• User screen data (screen units)
• System memory (memory switch) settings
• Direct connection information
• Numeral memory table data
• Character string memory table data
• Bit memory table data
• Mathematical table data
• Mark information
• Image/library data
• Recipe table data
It is possible to transmit the screen data (data for all the screens) in file units, or to transmit individual data or the data of individual screens in data units. (It is not possible to transmit mathematical table data in data units.)
When data is transmitted in file units, all of the screen data in the NT31/
NT31C is cleared and then the new data is transmitted.
When data is transmitted in data units, first the previous data is invalidated, then the new data is registered as valid data. Since the previous data is not cleared, free memory area in the NT31/NT31C will be insufficient when transmissions in data units are repeated. If this happens, write the screen data again by data transmission in file units.
To transmit screen data from the Support Tool to the NT31/NT31C, follow the procedure below.
Operation
1.
Connect the NT31/NT31C to a personal computer in which the Support
Tool has been installed and turn the power to the NT31/NT31C ON.
2.
Turn ON the power to the personal computer and start up the Support Tool.
3.
Establish the Transmit mode by following the menu operation from the System Menu shown below at the NT31/NT31C.
156
Transmitting the Screen Data
Ver 4.12
Select Transmit Mode.
Section 6-6
Select Tool Transmit.
Precautions to Be
Observed When
Transmitting Screen Data
4.
Open the screen data to be transmitted at the Support Tool, then select
Download (NTST PT) in the Support Tool’s Connect menu and specify the data to be transmitted.
5.
During screen data transmission, the transmission status is displayed.
6.
On completion of screen data transmission, press the Quit touch switch.
The NT31/NT31C returns to the Transmit mode.
If the screen data cannot be successfully transmitted from the Support Tool, use the communications check functions of the NT31/NT31C to check if com-
munications between the NT31/NT31C is normal or not (page 214).
If any of the following, or a system error, occurs during transmission of screen data, the transmitted screen data will not be registered correctly in the NT31/
NT31C. If this happens, the NT31/NT31C may not enter the RUN mode when started up, or there may be unpredictable malfunctions such as failure to display screens during operation. In this case, the screen data must be retransmitted in file units to register it correctly.
• The power to the NT31/NT31C is interrupted or the NT31/NT31C is reset.
• The power to the personal computer on which the Support Tool is running is interrupted or the computer is reset.
• The cable connecting the NT31/NT31C to the personal computer on which the Support Tool is running is disconnected or has a broken wire.
• The Quit touch switch on the NT31/NT31C screen is pressed to end screen data transmission.
• Screen data transmission is stopped by operation at the Support Tool.
157
Setting Conditions for Communications with Host by Using Memory Switches
Note
Section 6-7
When transferring the data in units of screens, if there are changes in memory table and/or direct access, transfer such data along with the screen data.
6-7 Setting Conditions for Communications with Host by
Using Memory Switches
The NT31/NT31C can be connected to the host by the following 7 types of communications methods can be used to communicate with a host.
• Host link • Memory link method
• NT Link (1:1)
• NT Link (1:N)
• Mitsubishi A-computer link method
• Mitsubishi FX method
• High-speed NT Link (1:N)
The NT31/NT31C has the following two ports, either of which can be used for communications with the host, depending on the requirements.
• Serial port A (exclusively for RS-232C, 9-pin connector)
• Serial port B (RS-232C/RS-422A (selectable), 25-pin connector)
The method for setting the communications method for communications with the host is described here.
For details on setting the communications conditions for a bar code reader,
refer to 6-10 Setting the Bar Code Reader Input Function.
Reference:
• Apart from the host, it is also possible to connect the Support Tool or a bar code reader to serial port A. When a bar code reader is connected at serial port A, the host must be connected at serial port B. When serial port A is being used for communications with the host, the host must be disconnected so that the Support Tool can be connected.
• There are four memory switch setting screens. The conditions for communications with the host are set on the fourth screen (the screen on which
4/4 is displayed). For details on setting memory switches other than those
for setting the conditions for communications with the host, refer to 6-9
• When using the Mitsubishi A-computer link method and Mitsubishi FX method, a system program for multi-venders is required. Install the sys-
tem program to the NT31/31C by the system installer (refer to page 151).
For details, refer to PLC Connection Manual (V042-E1@).
• When using PLCs manufactured by Allen-Bradley, GE Fanuc, or Siemens, refer to NT31/631 Multi Vendor Connection Manual (V060-E1@).
158
Setting Conditions for Communications with Host by Using Memory Switches
Section 6-7
6-7-1 About Communications Conditions
Items Set for
Communications
Conditions
The following settings are made for the communications conditions for communications between the NT31/NT31C and the host.
Port Communications Method/Communications Type Settings
Setting Item Function
Comm. A Method Set the communications method used at serial port A. Depending on the communications method, further communications condition settings may be necessary.
Setting Options
A system program for OMRON model.
None/Host Link/NT Link (1:1)/
NT Link (1:N) (standard or highspeed)/Bar-Code Reader
Memory link
RS-232C/RS-422A
Page
Comm. B Select Set whether serial port B is to be used for RS-
232C or RS-422A communications.
Comm. B Method Set the communications method used at serial port B. Depending on the communications method, further communications condition settings may be necessary.
A system program for OMRON model.
None/Host Link/NT Link (1:1)/
NT Link (1:N) (standard or highspeed)
Memory link
Communications Condition Settings for The Host Link Method
Setting Item
Comm. Speed
(for host link only)
Function
Sets the communications speed for communications with the host.
Setting
Options
9600 bps/
19200 bps
Page
Communications Condition Settings for The NT link (1:1) Method
No further communications conditions need to be set.
Communications Conditions Settings for The NT Link (1:N) Method
Setting Item
Unit No.
(for NT link (1:N) only)
Comm. Speed
Function
Set the unit number of the NT31/
NT31C.
Sets the communications speed for communications with the host.
Setting
Options
0 to 7
Standard or high-speed
Page
Setting The Conditions for Communications with The Memory Link
Method
Setting Item
Data bits
Stop bits
Parity
Comm. Speed
Flow control
Response
Function
Set the data bits length.
Set the stop bits length.
Set the parity.
Set the communications speed for communications with the host.
Set the flow control and its method.
Set whether the response is carried out for normal process of communications command or not.
Setting
Options
7, 8 bits
1, 2 bits
None, even, odd
1200, 2400,
4800, 9600,
19200, 38400 bps
None, RS/CS,
XON/XOFF
Yes, No
Page
159
Setting Conditions for Communications with Host by Using Memory Switches
Section 6-7
Possible Combinations of
Communications Method
Settings
The combinations of communications methods that can be set with the NT31/
NT31C are indicated in the table below. Combinations other than these listed below cannot be set (when using a system for multi-venders, refer to the PLC
Connection Manual (V042-E1@) or NT31/631 Multi Vendor Connection Man-
ual (V060-E1@).
Serial port B
None Host Link
×
×
❍
×
Serial port A
NT Link
(1:1)
×
×
❍
×
NT Link
(1:N)
❍
❍
Bar-code reader
❍
❍
×
×
❍
×
Memory
Link
None
Host Link
❍
❍
NT Link (1:1)
❍
NT Link (1:N)
(Standard or high-speed)
❍
Memory Link
❍
Reference:
❍
×
×
×
× × ×
❍
×
❍: Possible combination
×: Impossible combination
Combinations other than those indicated above cannot be set.
When using serial port B for communications with the host, and serial port A for the transmission of screen data from the Support Tool, set the settings of serial port A to None.
160
Setting Conditions for Communications with Host by Using Memory Switches
Section 6-7
6-7-2 Setting the Host Link Method
Set the communications conditions for the host link method at serial port A or serial port B by following the operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Switch.
Display the fourth memory switch screen by pressing the [
↓] (next screen) or [↑]
(previous screen) touch switch.
Press the touch switch corresponding to the port at which the host link method is to be set
(Comm. A Method or Comm. B Method) to display the setting option Host Link.
The setting option changes each time the touch switch is pressed.
161
Setting Conditions for Communications with Host by Using Memory Switches
Section 6-7
Press the Set touch switch to the right of the port at which the setting has been made.
In this example, serial port A is used.
Press the Comm. Speed touch switch to display the communications speed to be set.
The setting option changes each time the touch switch is pressed.
In this example, serial port A is used.
Press Quit.
The communications speed is set.
• To quit the communications speed setting screen without setting the communications speed, press the Abort touch switch. The NT31/NT31C returns to the memory switch setting screen (4/4) and the previous communications speed remains in effect.
On completion of communications speed setting, the NT31/NT31C returns to the memory switch setting screen (4/4).
To set other memory switches, select the relevant screen using the [ ] (next screen) or [ ] (previous screen) touch switch, then make the setting.
• To confirm the settings and quit the memory switch setting screen, press the Quit touch switch. The settings made last will be set and the NT31/
NT31C will return to the MAINTENANCE MODE MENU screen.
• To quit the memory switch setting screen without confirming the settings, press the Abort touch switch. The NT31/NT31C will return to the MAIN-
TENANCE MODE MENU screen with the previous settings still in effect.
162
Setting Conditions for Communications with Host by Using Memory Switches
Section 6-7
6-7-3 Setting the NT Link (1:1) Method
Set the communications conditions for the NT link (1:1) method at serial port
A or serial port B by following the operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Switch.
Display the fourth memory switch screen by pressing the [
↓] (next screen) or [↑] (previous screen) touch switch.
Press the touch switch corresponding to the port at which the NT link (1:1) method is to be set (Comm. A Method or Comm. B
Method) to display the setting option NT Link
(1:1).
The setting option changes each time the touch switch is pressed.
To set other memory switches, select the relevant screen using the [ ] (next screen) or [ ] (previous screen) touch switch, then make the setting.
• To confirm the settings and quit the memory switch setting screen, press the Quit touch switch. The settings made last will be set and the NT31/
NT31C will return to the MAINTENANCE MODE MENU screen.
• To quit the memory switch setting screen without confirming the settings, press the Abort touch switch. The NT31/NT31C will return to the MAIN-
TENANCE MODE MENU screen with the previous settings still in effect.
163
Setting Conditions for Communications with Host by Using Memory Switches
Section 6-7
6-7-4 Setting the NT Link (1:N) Method (Standard/High-speed)
Set the communications conditions for the NT link (1:N) method at serial port
A or serial port B by following the operation from the System Menu shown below.
The communications speed determines whether the 1:N NT Link is standard or high-speed.
Standard: Standard 1:N NT Link
High-speed: High-speed 1:N NT Link
Ver 4.12
Select Maintenance Mode.
Select Memory Switch.
Display the fourth memory switch screen by pressing the [
↓] (next screen) or [↑] (previous screen) touch switch.
Press the touch switch corresponding to the port at which the NT link (1:N) method
(standard or high-speed) is to be set (Comm.
A Method or Comm. B Method) to display the setting option NT Link (1:N).
The setting option changes each time the touch switch is pressed.In this example, serial port A is used.
164
Setting Conditions for Communications with Host by Using Memory Switches
Section 6-7
Press the Set touch switch to the right of the port at which the setting has been made.In this example, serial port A is used.
Press the Unit No. touch switch to display the unit number to be set. Press the Comm. Speed touch switch to display the communications speed, standard or 115.2-kbps high-speed.
(The Comm. Speed setting determines which method of 1:N NT Link is used.)
The setting option changes each time the touch switch is pressed. In this example, serial port A is used for a standard 1:N NT Link.
Press Quit.
The unit number and communications speed are set.
Reference:
• To quit the unit number/communications speed setting screen without confirming the unit number/communications speed settings, press the
Abort touch switch. The NT31/NT31C will return to the memory switch setting screen (4/4) with the previous settings still in effect.
Unit numbers are numbers assigned to each PT when multiple PTs are connected to one host, so that the host can identify the individual PTs. The unit numbers that can be set differ according to the host model, as follows.
• C200HE(-ZE):
Unit numbers 0 to 3 (maximum of 4 PTs per host port)
• C200HG(-ZE), C200HX(-ZE):
Unit numbers 0 to 7 (maximum of 8 PTs per host port)
When making the settings, make sure there is no duplication of unit numbers among PTs.
On completion of unit number/communications speed setting a, the NT31/
NT31C returns to the memory switch setting screen (4/4).
To set other memory switches, select the relevant screen using the [ ] (next screen) or [ ] (previous screen) touch switch, then make the setting.
• To confirm the settings and quit the memory switch setting screen, press the Quit touch switch. The settings made last will be set and the NT31/
NT31C will return to the MAINTENANCE MODE MENU screen.
• To quit the memory switch setting screen without confirming the settings, press the Abort touch switch. The NT31/NT31C will return to the MAIN-
TENANCE MODE MENU screen with the previous settings still in effect.
165
Setting Conditions for Communications with Host by Using Memory Switches
Section 6-7
6-7-5 Setting the Memory Link Method
Set the communications conditions for the host link method at serial port A or serial port B by following the operation from the System Menu shown below.
Check the communications settings of the host to be used.
Ver 4.12
Select Maintenance Mode.
Select Memory Switch.
Display the fourth memory switch screen by pressing the [
↓] (next screen) or [↑]
(previous screen) touch switch.
Press the touch switch corresponding to the port at which the memory link method is to be set (Comm. A Method or Comm. B
Method) to display the setting option
Memory Link.
The setting option changes each time the touch switch is pressed.In this example, serial port A is used.
Press the Set touch switch to the right of the port at which the setting has been made.
In this example, serial port A is used.
166
Setting Conditions for Communications with Host by Using Memory Switches
Section 6-7
Display the data bits to be set (7 bits or 8 bits) by pressing the Data Bit Length touch switch.
Display the stop bits to be set (1 bit or 2 bits) by pressing the Stop Bit Length touch switch.
Display the parity to be set (None, even, odd) by pressing the Parity Bit touch switch.
Display the communications speed to be set
(1200, 2400, 4800, 9600, 19200, 38400 bps.) by pressing the Comm. Speed touch switch.
Display the condition of the flow control to be set (None, RS/CS, XON/XOFF) by pressing
Flow Control touch switch.
If the RS-422A is selected for serial port B setting, RS/CS is not displayed.
Display presence or absence of the response by pressing the Response touch switch.
The setting option changes each time the touch switch is pressed.
In this example, serial port A is used.
Press the Quit touch switch.
• To quit the communications speed setting screen without setting the communications speed, press the Abort touch switch. The NT31/NT31C returns to the memory switch setting screen (4/4) and the previous communications speed remains in effect.
On completion of communications speed setting, the NT31/NT31C returns to the memory switch setting screen (4/4).
To set other memory switches, select the relevant screen using the [ ] (next screen) or [ ] (previous screen) touch switch, then make the setting.
• To confirm the settings and quit the memory switch setting screen, press the Quit touch switch. The settings made last will be set and the NT31/
NT31C will return to the MAINTENANCE MODE MENU screen.
• To quit the memory switch setting screen without confirming the settings, press the Abort touch switch. The NT31/NT31C will return to the MAIN-
TENANCE MODE MENU screen with the previous settings still in effect.
167
Setting Conditions for Communications with Host by Using Memory Switches
Section 6-7
6-7-6 Setting the Communications Type for Serial Port B
Set the communications type (RS-232C or RS-422A) for serial port B by following the operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Switch.
Display the fourth memory switch screen by pressing the [
↓] (next screen) or [↑]
(previous screen) touch switch.
168
Press the Comm. B Select touch switch to display the communications type to be set.
The setting option changes each time the touch switch is pressed.
Reference:
f serial port B is used for RS-485 communications, RS-422A must be set as its communications type.
To set other memory switches, select the relevant screen using the [ ] (next screen) or [ ] (previous screen) touch switch, then make the setting.
• To confirm the settings and quit the memory switch setting screen, press the Quit touch switch. The settings made last will be set and the NT31/
NT31C will return to the MAINTENANCE MODE MENU screen.
• To quit the memory switch setting screen without confirming the settings, press the Abort touch switch. The NT31/NT31C will return to the MAIN-
TENANCE MODE MENU screen with the previous settings still in effect.
Starting Operation
Section 6-8
6-8 Starting Operation
After completing screen data transmission and setting the communications conditions, connect the NT31/NT31C to the host and start operation.
Note
Switching to the RUN
Mode and Starting
Operation
Confirming the
Communications between the NT31/NT31C and the
Host
Check the operation of all screen data and host programs carefully before using them. If incorrect, the system may operate unpredictably.
Press the Quit touch switch on the System Menu screen or other screen. The
NT31/NT31C switches to the RUN mode and starts operation.
The operation at the start is as follows.
Display of The System Initialization Screen
When establishing the communications with a host, the System initializing character string is displayed on the screen. If the communications with the host cannot be established, the System initializing screen remains up. If this is the case, check the settings at the host and the PT side, the cables and wiring.
In addition, creating screen number 9000 enables the display of a screen other than the System initialization screen.
Transmission of The Contents of Memory Tables
If the Resume Function memory switch is set to ON, or if the initial values of the memory tables are used, the contents of the numeral/character-string memory tables are copied to the allocated words at the host.
↓
Display of The Startup Screen
The startup screen is displayed on reading the contents (screen number of the screen to be displayed) of the first word of the PT status control area.
If the contents are not correct for a screen number, or there is no data registered for the set screen number, an error message is displayed.
Execute the host program and confirm that the following operations are performed normally.
• Confirm that the NT31/NT31C screens switch in accordance with the host program.
If the screens do not switch correctly, check the connection between the host and the NT31/NT31C, and also check if the hardware settings
are correct. For details, refer to SECTION 4 Connecting to the Host
from the RS-232C Port, or SECTION 5 Connecting to the Host from
• Confirm that the operation results of touch switch and numeric value/character string input at the NT31/NT31C are sent to the host correctly by displaying the contents of the host words and bits using a Programming
Device (e.g. CX-Programmer).
If the results of operations at the NT31/NT31C are not sent to the host correctly, check the setting of the display elements. For details on setting display elements, refer to the description of each display element in the Reference Manual.
6-9 System Settings
The NT31/NT31C allows a variety of functions which are convenient during operation to be set with memory switches. This section describes the memory switch settings relating to the operation environment.
169
System Settings
Section 6-9
Since the memory switch settings are backed up to the flash memory by the battery in the NT31/NT31C, they are not cleared when the power is switched
OFF.
6-9-1 Memory Switch Setting Screens
There are four memory switch setting screens. The required screen can be displayed by using the [ ] (next screen) and [ ] (previous screen) touch switches.
The four memory switch setting screens are shown below.
[ ] (next screen)
[ ] (previous screen)
[ ] (next screen) [ ] (previous screen) [ ] (next screen) [ ] (previous screen)
[ ] (next screen)
[ ] (previous screen)
Memory Switch Settings
A list of the memory switch settings is presented below.
• Start-up Wait Time
• Key Press Sound
• Buzzer Sound
• Printer Controller
• Print Method
• Screen Saver Movement
• Screen Saver Start up Time
• Hist. Disp. Method
• Resume Function
• Comm. Auto-return
• Time-out Interval
• Retry Counts
• Comm. A Method
(For the bar code reader, refer to page 189.)
• Comm. B Select
• Comm. B Method
For details on each setting, refer to the pages indicated.
170
System Settings
Section 6-9
6-9-2 Setting the Start-up Wait Time
The Start-up Wait Time is the time lapse until the NT31/NT31C switches to the RUN mode after its power has been switched ON or after it has been reset. Set this item if it takes some time for the host to start operation. Nothing is displayed during the Start-up Wait Time.
The setting range is 0 to 10 seconds. The default (factory) setting is 00sec.
Set the system start-up wait time by following the menu operation from the
System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Switch.
Press Start-up Wait Time to display the required time lapse.
The setting option changes each time the touch switch is pressed, according to the following sequence.
01 02 03 .... 09 10 00 01 ....
To set other memory switches, select the relevant screen using the [ ] (next screen) or [ ] (previous screen) touch switch, then make the setting.
• To confirm the settings and quit the memory switch setting screen, press the Quit touch switch. The settings made last will be set and the NT31/
NT31C will return to the MAINTENANCE MODE MENU screen.
• To quit the memory switch setting screen without confirming the settings, press the Abort touch switch. The NT31/NT31C will return to the MAIN-
TENANCE MODE MENU screen with the previous settings still in effect.
6-9-3 Setting the Key Press Sound
It is possible to set whether or not the key sound is sounded when a touch switch on the NT31/NT31C screen is pressed.
• ON: When a touch switch is pressed, the key sound sounds for 0.2 seconds.
• OFF: The key sound does not sound when touch switches are pressed.
171
System Settings
Section 6-9
The default (factory) setting is ON.
Set the key press sound by following the menu operation from the System
Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Switch.
Press Key Press Sound to display ON or OFF.
The setting option changes each time the touch switch is pressed.
To set other memory switches, select the relevant screen using the [ ] (next screen) or [ ] (previous screen) touch switch, then make the setting.
• To confirm the settings and quit the memory switch setting screen, press the Quit touch switch. The settings made last will be set and the NT31/
NT31C will return to the MAINTENANCE MODE MENU screen.
• To quit the memory switch setting screen without confirming the settings, press the Abort touch switch. The NT31/NT31C will return to the MAIN-
TENANCE MODE MENU screen with the previous settings still in effect.
6-9-4 Setting the Buzzer Sound
The NT31/NT31C has a function for sounding a buzzer in response to an instruction from the host, or when an error occurs. It is possible to set whether or not the buzzer actually sounds with the memory switches.
• ON:
The buzzer sounds in response to instructions and when an error occurs.
• OFF:
The buzzer does not sound in response to instructions or when errors occur.
• ERROR ON:
The buzzer sounds only when an error occurs.
172
System Settings
Reference:
Section 6-9
The default (factory) setting is OFF.
• There are other instructions and settings relating to the buzzer, but this memory switch setting has the highest priority.
• For details on the buzzer, refer to 2-15-5 Buzzer Function in the Refer-
ence Manual.
Set the buzzer sound by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Switch.
Press Buzzer Sound to display ON, OFF, or ERROR ON.
The setting option changes each time the touch switch is pressed.
To set other memory switches, select the relevant screen using the [ ] (next screen) or [ ] (previous screen) touch switch, then make the setting.
• To confirm the settings and quit the memory switch setting screen, press the Quit touch switch. The settings made last will be set and the NT31/
NT31C will return to the MAINTENANCE MODE MENU screen.
• To quit the memory switch setting screen without confirming the settings, press the Abort touch switch. The NT31/NT31C will return to the MAIN-
TENANCE MODE MENU screen with the previous settings still in effect.
6-9-5 Setting the Printer Controller
The NT31/NT31C has a function for printing out data at a printer connected to it in response to an instruction from the host or operation at the NT31/NT31C.
Three types of printer can be connected to the NT31/NT31C: select the type used with this memory switch setting.
• ESC/P:
173
System Settings
Reference:
Section 6-9
Printers that conform to Epson’s ESC/P 24-J83C (color) printer control specifications or printers that conform to Epson’s ESC/P 24-J82
(monochrome) control specifications.
• PC-PR201H:
Printers that can emulate the PC-PR201H, made by NEC Corp.
• PCL 5:
Printers that conform to the PCL 5 printer control specifications.
Note that the NT31 can only be used with the monochrome Tone setting and does not support color printing.
For the NT31, the Print Method is fixed as Tone.
The default (factory) setting is ESC/P.
• In addition to this setting, NT31C has the Print Method setting (page 175).
• For details on the print function, refer to 2-15-7 Print Function in the Ref-
erence Manual.
Set the printer controller setting by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Switch.
Press Printer Controller to display the required printer type.
The setting option changes each time the touch switch is pressed.
To set other memory switches, select the relevant screen using the [ ] (next screen) or [ ] (previous screen) touch switch, then make the setting.
• To confirm the settings and quit the memory switch setting screen, press the Quit touch switch. The settings made last will be set and the NT31/
NT31C will return to the MAINTENANCE MODE MENU screen.
174
System Settings
Section 6-9
• To quit the memory switch setting screen without confirming the settings, press the Abort touch switch. The NT31/NT31C will return to the MAIN-
TENANCE MODE MENU screen with the previous settings still in effect.
6-9-6 Setting the Print Method (NT31C Only)
The NT31/NT31C has a function for printing out data at a printer connected to it in response to an instruction from the host or operation at the NT31/NT31C.
When using the NT31C, the currently displayed screen image or other data can be printed out in color. You can select whether screen data is actually printed out in color, or in monochrome tones that represent colors, with this memory switch setting.
When PCL 5 is set for Printer Controller, the setting is fixed as Tone.
• Color: Color images are printed in color.
• Tone: Color images are printed in monochrome tones.
The default (factory) setting is Tone.
Reference:
• In addition to this setting, NT31C has the Printer Controller setting
• For details on the print function, refer to 2-15-7 Print Function in the Ref-
erence Manual.
Set the print method setting by following the menu operation from the System
Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Switch.
Press Print Method to display the required printing method.
The setting option changes each time the touch switch is pressed.
175
System Settings
Section 6-9
To set other memory switches, select the relevant screen using the [ ] (next screen) or [ ] (previous screen) touch switch, then make the setting.
• To confirm the settings and quit the memory switch setting screen, press the Quit touch switch. The settings made last will be set and the NT31/
NT31C will return to the MAINTENANCE MODE MENU screen.
• To quit the memory switch setting screen without confirming the settings, press the Abort touch switch. The NT31/NT31C will return to the MAIN-
TENANCE MODE MENU screen with the previous settings still in effect.
6-9-7 Setting Screen Saver Movement
The NT31/NT31C has a function to prevent the formation of an afterimage by turning off the screen display if no operation is performed for a certain period of time, and then displaying character strings at random positions and in random colors (the colors only change for the NT31C).
The Screen Saver Movement setting determines whether or not these character strings are displayed while the screen display is off.
If Display is selected, the character string stored in character string memory table No. 0 is displayed.
If Display erase is selected, the character string is not displayed, and the backlight is also turned off while the screen display is off.
The default (factory) setting is Display erased.
The screen saver can be canceled, and former screen redisplayed, by any of the following operations.
• Touching any part of the touch panel
• Screen switching due to PT status control area operations
• Screen switching due to bit memory table operations
• Execution of any of the following PT status control bit operations:
• Changing the backlight mode
• Screen printing (change from OFF to ON)
• Screen display (change from OFF to ON)
Reference:
• The time before the screen is turned OFF is set by the Screen Saver Start
up Time setting. For details, refer to 6-9-8 Setting the Screen Saver Start-
• Even if its operation has been set with the Screen Saver Movement setting, the screen saver function will not be executed if 000 is set for Screen
Saver Start up Time.
• Screen saver function is enabled only through RUN mode of NT31/
NT31C. In System Menu or System Installer mode, this function is not started.
176
System Settings
Section 6-9
Set the screen saver operation by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Switch.
Press [
↓] (next screen) or [↑] (previous screen) to display the second memory switch setting screen.
Press Screen Saver Movement to display
Display or Display erased.
The setting option changes each time the touch switch is pressed.
To set other memory switches, select the relevant screen using the [ ] (next screen) or [ ] (previous screen) touch switch, then make the setting.
• To confirm the settings and quit the memory switch setting screen, press the Quit touch switch. The settings made last will be set and the NT31/
NT31C will return to the MAINTENANCE MODE MENU screen.
• To quit the memory switch setting screen without confirming the settings, press the Abort touch switch. The NT31/NT31C will return to the MAIN-
TENANCE MODE MENU screen with the previous settings still in effect.
177
System Settings
Section 6-9
6-9-8 Setting the Screen Saver Start-up Time
The NT31/NT31C has a function to maximize the service life of the backlight and prevent the formation of an afterimage by turning off the screen display and the backlight if no operation is performed for a certain period of time.
The Screen Saver Start up Time setting determines the time interval before the screen saver function operates.
The setting range is 0 to 255 minutes. The default (factory) setting is 10 minutes. If 000 is set, the screen saver function does not operate.
The screen saver can be canceled, and previous screen redisplayed, by any of the following operations.
• Touching any part of the touch panel
• Screen switching due to PT status control area operations
• Screen switching due to bit memory table operations
• Execution of any of the following PT status control bit operations:
• Changing the backlight mode
• Screen printing (change from OFF to ON)
• Screen display (change from OFF to ON)
Reference:
• It is possible to display the character string stored in character string memory table No. 0 at random positions and in random colors while the
screen display is off. For details, refer to 6-9-7 Setting Screen Saver
Movement (page 176). Note however that, when this feature is used, the
backlight does not go off.
• For details on the screen saver function, refer to 2-15-4 Screen Saver
Function in the Reference Manual.
• Screen saver function is enabled only through RUN mode of NT31/
NT31C. In System Menu or System Installer mode, this function is not started.
178
System Settings
Section 6-9
Set the screen saver start-up time by following the menu operation from the
System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Switch.
Press [
↓] (next screen) or [↑] (previous screen) to display the second memory switch setting screen.
Set a time in the input field to the right of
Screen Saver Start up Time.
Each of the digits can be incremented or decremented by pressing the associated
+ and
− keys.
To set other memory switches, select the relevant screen using the [ ] (next screen) or [ ] (previous screen) touch switch, then make the setting.
• To confirm the settings and quit the memory switch setting screen, press the Quit touch switch. The settings made last will be set and the NT31/
NT31C will return to the MAINTENANCE MODE MENU screen.
• To quit the memory switch setting screen without confirming the settings, press the Abort touch switch. The NT31/NT31C will return to the MAIN-
TENANCE MODE MENU screen with the previous settings still in effect.
179
System Settings
Section 6-9
6-9-9 Setting the History Display Method
The NT31/NT31C features the display history record function, which records the time at which screens are displayed during operation and the number of times they are displayed, and the alarm history record function, which continually monitors bit statuses at the host and records the time when bits come ON and the number of times they come ON.
The Hist. Disp. Method setting determines whether — when these record data are displayed in sort by occurrence — the records are displayed in a progression from newest to oldest or from oldest to newest.
• From Old Data:
The records are displayed in sequence from the oldest to newest.
• From New Data:
The records are displayed in sequence from the newest to oldest.
The default (factory) setting is From New Data.
Reference:
• When the voltage of the NT31/NT31C’s built-in battery becomes low, the history record contents cannot be retained.
• For details on the display history record function and the alarm history record function, refer to 2-15-1 Display History Record Function and 2-15-
2 Alarm History Record Function in the Reference Manual.
180
System Settings
Section 6-9
Set the history display method by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Switch.
Press [
↓] (next screen) or [↑] (previous screen) to display the second memory switch setting screen.
Press Hist. Disp. Method to display the required display order.
The setting option changes each time the touch switch is pressed.
To set other memory switches, select the relevant screen using the [ ] (next screen) or [ ] (previous screen) touch switch, then make the setting.
• To confirm the settings and quit the memory switch setting screen, press the Quit touch switch. The settings made last will be set and the NT31/
NT31C will return to the MAINTENANCE MODE MENU screen.
• To quit the memory switch setting screen without confirming the settings, press the Abort touch switch. The NT31/NT31C will return to the MAIN-
TENANCE MODE MENU screen with the previous settings still in effect.
181
System Settings
Section 6-9
6-9-10 Setting the Resume Function
The NT31/NT31C has a function to keep the contents of the memory tables even when the power to the NT31/NT31C is OFF and write back them to the host when the power is turned ON.
If the resume function is OFF, the memory tables are initialized to these initial values on switching to the RUN mode. If the resume function is ON, these are not initialized and are kept the battery-backed up contents.
When the memory table is initialized, its contents are reset to the initial state that is set by the Support Tool.
When the system is started up the next time, the screen is displayed using the previous contents of the memory table.
• ON: The resume function is used.
• OFF: The resume function is not used.
The default (factory) setting is OFF.
Reference:
• When the voltage of the NT31/NT31C’s built-in battery becomes low, the memory table contents cannot be retained even if ON is set for the resume function.
• For details on the resume record function, refer to 2-15-3 Resume Func-
tion in the Reference Manual.
182
System Settings
Section 6-9
Set the resume function by following the menu operation from the System
Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Switch.
Press [
↓] (next screen) or [↑] (previous screen) to display the second memory switch setting screen.
Press Resume Function to display the required setting.
The setting option changes each time the touch switch is pressed.
To set other memory switches, select the relevant screen using the [ ] (next screen) or [ ] (previous screen) touch switch, then make the setting.
• To confirm the settings and quit the memory switch setting screen, press the Quit touch switch. The settings made last will be set and the NT31/
NT31C will return to the MAINTENANCE MODE MENU screen.
• To quit the memory switch setting screen without confirming the settings, press the Abort touch switch. The NT31/NT31C will return to the MAIN-
TENANCE MODE MENU screen with the previous settings still in effect.
183
System Settings
Section 6-9
6-9-11 Setting the Automatic Reset Function
The NT31/NT31C has a function for ignoring communications errors and automatically returning to the RUN mode when they occur.
The Comm. Auto-return setting determines whether the automatic reset function is effective or not.
• ON:
When a communications error occurs, the NT31/NT31C automatically returns to the RUN mode without displaying an error screen (the System
Initializing screen may be displayed).
• OFF:
When a communications error occurs, an error screen is displayed and operation stops. Pressing OK on the error screen returns the NT31/
NT31C to the RUN mode.
The default (factory) setting is OFF.
Reference:
• If a communications error occurs when OFF is set for Comm. Auto-return, the NT31/NT31C makes the number of attempts at communications with the host specified by the setting for the Retry Counts touch switch
(page 187). If communications cannot be re-established in any of these
attempts, an error screen is displayed.
• For details on communications errors, refer to 7-2-5 Communications
Errors and Their Remedies (page 239).
184
System Settings
Section 6-9
Set the automatic reset function by following the menu operation from the
System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Switch.
Press [
↓] (next screen) or [↑] (previous screen) to display the third memory switch setting screen.
Press Comm. Auto-return to display the required setting.
The setting option changes each time the touch switch is pressed.
To set other memory switches, select the relevant screen using the [ ] (next screen) or [ ] (previous screen) touch switch, then make the setting.
• To confirm the settings and quit the memory switch setting screen, press the Quit touch switch. The settings made last will be set and the NT31/
NT31C will return to the MAINTENANCE MODE MENU screen.
• To quit the memory switch setting screen without confirming the settings, press the Abort touch switch. The NT31/NT31C will return to the MAIN-
TENANCE MODE MENU screen with the previous settings still in effect.
185
System Settings
Section 6-9
6-9-12 Setting the Time-out Interval
Reference:
The NT31/NT31C goes into the time-out error status if no response is received from the host within a fixed time. The Time-out Interval setting specifies the time lapse at which time-out is judged to have occurred.
The setting range is 1 to 10 seconds. The default (factory) setting is 1 second.
Whether or not an error screen is displayed when a time-out error occurs is determined by the setting for the Comm. Auto-return memory switch.
Set the time-out interval by following the menu operation from the System
Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Switch.
Press [
↓] (next screen) or [↑] (previous screen) to display the third memory switch setting screen.
Press Time-out Interval to display the required time lapse.
The setting option changes each time the touch switch is pressed, according to the following sequence.
01 02 03 .... 09 10 01 ....
To set other memory switches, select the relevant screen using the [ ] (next screen) or [ ] (previous screen) touch switch, then make the setting.
186
System Settings
Section 6-9
• To confirm the settings and quit the memory switch setting screen, press the Quit touch switch. The settings made last will be set and the NT31/
NT31C will return to the MAINTENANCE MODE MENU screen.
• To quit the memory switch setting screen without confirming the settings, press the Abort touch switch. The NT31/NT31C will return to the MAIN-
TENANCE MODE MENU screen with the previous settings still in effect.
6-9-13 Setting the Retry Count
Reference:
The NT31/NT31C does not immediately display an error screen when a communications error occurs, but tries to re-establish communications. The Retry
Counts setting specifies the number of attempts to be made to re-establish communications. If communications cannot be recovered within this number of attempts, the following happens depending on the setting made for the
Comm. Auto-return memory switch (page 184).
• Comm. Auto-return ON:
Operation in the RUN mode is continued without displaying an error screen. Regardless of the setting made for Retry Counts, attempts to re-establish communications are repeated until normal communications is achieved.
• Comm. Auto-return OFF:
The RUN mode is ended and an error screen is displayed. On pressing the OK touch switch on the error screen, the screen displayed immediately before is redisplayed and attempts are made to re-establish communications.
The System Menu can be displayed from the error screen by pressing any two of the four corners of the touch panel simultaneously.
The setting range is 0 to 255 times. The default (factory) setting is 5 times.
For details on communications errors, refer to 7-2-5 Communications Errors
and Their Remedies (page 239).
187
System Settings
Section 6-9
Set the retry count by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Switch.
Press [
↓] (next screen) or [↑] (previous screen) to display the third memory switch setting screen.
Set a number of times in the input field to the right of Retry Counts.
Each of the digits can be incremented or decremented by pressing the associated
+ and
− keys.
To set other memory switches, select the relevant screen using the [ ] (next screen) or [ ] (previous screen) touch switch, then make the setting.
• To confirm the settings and quit the memory switch setting screen, press the Quit touch switch. The settings made last will be set and the NT31/
NT31C will return to the MAINTENANCE MODE MENU screen.
• To quit the memory switch setting screen without confirming the settings, press the Abort touch switch. The NT31/NT31C will return to the MAIN-
TENANCE MODE MENU screen with the previous settings still in effect.
188
Setting the Bar Code Reader Input Function
Section 6-10
6-10 Setting the Bar Code Reader Input Function
The NT31/NT31C has a bar code reader input function which allows a bar code reader to be connected and bar code data to read as character strings into character string input fields.
This section describes the communications conditions for the bar code reader and the setting method for confirming the input data.
Reference:
• For details on bar code reader types and connection methods, refer to 3-4
Connecting a Bar Code Reader in this manual and for details on how to
use a bar code reader refer to 3-7 Input of Numeric Values and Character
Strings in the Reference Manual.
• The bar code reader is connected to serial port A. This means that serial port B must be used for communications with the host.
Communications Condition Settings for Bar Code Readers
Setting Item
Data bit length
Stop bit length
Parity bit
Communications speed
Input method
Function
Sets the bit length for the data bits.
Sets the stop bit length for the data.
Sets the parity bit for the data.
Sets the communications speed for the bar code reader
Setting Options
7* or 8 bits
1 or 2* bits
None, odd, even*
4800, 9600*, or 19200 bps
Sets the method for confirming data when it is input to a character string input field.
Manual: The data is confirmed with a touch switch. The data can be corrected and character strings can be added.
Auto: The data is automatically confirmed when it is input.
Manual*, Auto
Page
* Default (factory) setting
Setting the Communications Conditions and Setting Method
Set the bar code reader communications conditions and method of confirmation at input by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Memory Switch.
189
Setting the Bar Code Reader Input Function
Section 6-10
Press [
↓] (next screen) or [↑] (previous screen) to display the fourth memory switch setting screen.
Press Comm. A Method to select Bar-
Code Reader.
The setting option changes each time the touch switch is pressed.
Press the Set touch switch to the right of
Comm. A Method.
Display the required setting for each item by pressing the touch switches.
The setting option changes each time the touch switch is pressed.
Press Quit.
Pressing Abort on the communications condition/confirmation method setting screen causes the NT31/NT31C to return to the memory switch setting screen (4/4) without executing setting (with the previous settings still effective).
190
System Maintenance
Section 6-11
On completion of communications condition/confirmation method setting, the
NT31/NT31C returns to the memory switch setting screen (4/4).
To set other memory switches, select the relevant screen using the [ ] (next screen) or [ ] (previous screen) touch switch, then make the setting.
• To confirm the settings and quit the memory switch setting screen, press the Quit touch switch. The settings made last will be set and the NT31/
NT31C will return to the MAINTENANCE MODE MENU screen.
• To quit the memory switch setting screen without confirming the settings, press the Abort touch switch. The NT31/NT31C will return to the MAIN-
TENANCE MODE MENU screen with the previous settings still in effect.
6-11 System Maintenance
The NT31/NT31C has the following maintenance and check functions.
Item
I/O Settings
Calendar Check
Function
Adjustment of display panel contrast and brightness of the backlight.
Display and setting of the time data of the NT31/NT31C clock function.
PT Settings Direct connection setting of the screen data in the NT31/NT31C and display of the setting statuses of the serial ports.
Display history record Display and printing of display history record data.
Alarm history record Display and printing of alarm history record data.
Screen data check Display of each screen stored in the NT31/NT31C.
I/O check
Device check Checking of the I/O functions of the NT31/NT31C.
I/F check Checking of the communications functions of the NT31/NT31C.
Page
This section describes how to use these functions.
6-11-1 I/O Settings
Contrast Adjustment
This function is used to adjust the contrast of the display panel and the brightness of the backlight.
With the NT31/31C, you can adjust the contrast and brightness settings using either of the following two methods.
Setting from the System Menu
Adjusting the contrast: Select System Menu/Maintenance Mode/I/O Settings/
Contrast Adjust.
Adjusting the brightness: Select System Menu/Maintenance Mode/I/O Settings/Brightness Adjust.
Setting Using Special Screen During PT Operation
You can set the brightness and contrast by displaying the screen with the following number, using a touch switch with a switch screen function, or by specifying the display screen in the PT status control area.
Screen number 9030: Brightness and contrast adjustment screen.
The NT31/NT31C allows the contrast to be adjusted in 100 steps. The CON-
TRAST ADJUST screen enables you to make the adjustment while actually checking the contrast on the screen. Once the contrast has been set, it remains in effect even if the power is turned OFF or the NT31/NT31C is reset
(and even if the voltage of the built-in battery becomes low).
Setting from the System Menu
Adjust the contrast of the display panel by following the menu operation from the System Menu shown below.
191
System Maintenance
Ver 4.12
Select Maintenance Mode.
Section 6-11
Select I/O Settings.
Select Contrast Adjust.
Adjust the contrast with the touch switches in the left half of the screen.
[ ]: Increase 10 steps
[
]: Increase 1 step
[ ]: Decrease 1 step
[ ]: Decrease 10 steps
Press Quit.
The contrast is set and the NT31/NT31C returns to the I/O SETTINGS MENU screen.
Setting Using Brightness and Contrast Adjustment Screen
Display screen number 9030 using either a touch switch with switch screen function, or by specifying the display screen in the PT status control area.
192
System Maintenance
Section 6-11
Adjust the contrast with the touch switches in the right half of the screen.
[ ]: Increase 10 steps
[
]: Increase 1 step
[ ]: Decrease 1 step
[ ]: Decrease 10 steps
Press Quit.
The contrast is set, and the NT31/NT31C returns to the previous screen.
Backlight Brightness
Adjustment
The NT31/NT31C allows the brightness of the backlight to be adjusted in 3 steps. The BRIGHTNESS ADJUST screen enables you to make the adjustment while actually checking the brightness on the screen.
193
System Maintenance
Section 6-11
Setting from the System Menu
Adjust the backlight brightness by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select I/O Settings.
Select Brightness Adjust.
Adjust the contrast with the High, Middle, and Low touch switches in the left half of the screen.
Press Quit.
The contrast is set and the NT31/NT31C returns to the I/O SETTINGS MENU screen.
194
System Maintenance
Section 6-11
Setting Using Brightness and Contrast Adjustment Screen
Display screen number 9030 using either a touch switch with switch screen function, or by specifying the display screen in the PT status control area.
Adjust the brightness with the touch switches (High, Middle, Low) in the left half of the screen.
Press Quit.
The brightness is set, and the NT31/NT31C returns to the previous screen.
6-11-2 Displaying/Setting the Calendar and Clock
The NT31/NT31C has a clock function for setting and displaying the date and time.
This section describes how to display and set the clock data by menu operation from the System Menu.
Reference:
• The clock function does not strictly check the date and day of the week settings. When setting the clock data, be sure to set the correct date and day of the week. If a mistake is made — for example entering a value in the range 13 to 19 when entering the month — the buzzer sounds three times.
Make sure that the data is correct when the month changes.
• Numeral memory tables 247 to 255 are reserved for the clock function.
Clock data can be displayed and set during operation of the NT31/NT31C by using these numeral memory tables.
• For details on the clock function, refer to 2-15-6 Clock Function in the Ref-
erence Manual.
• No clock data is set on shipment from the factory.
• The clock data is backed up by the built-in battery of the NT31/NT31C. If the battery voltage becomes low, the clock data cannot be retained when the power to the NT31/NT31C is turned OFF or the NT31/NT31C is reset and the clock function will not operate correctly.
• When writing to the screen data memory is disabled by the setting made for System Setting in the System Installer mode, it is not possible to set the date and time.
Display/set clock data by following the menu operation from the System Menu shown below.
195
System Maintenance
Ver 4.12
Select Maintenance Mode.
Section 6-11
Select Calendar Check.
Press Set.
If you are just checking the display, press
Quit at this point; the NT31/NT31C will return to the MAINTENANCE MODE
MENU screen.
Set the date.
Each of the digits of the year, month, date, hour, minute, and second settings, and the day of the week setting, are touch switches: press these touch switches to change the corresponding settings.
Press Quit.
The clock data is set and the NT31/NT31C returns to the date and time display.
• Pressing Abort causes the NT31/NT31C to return to the date and time display without executing setting (with the previous settings still effective).
196
System Maintenance
Section 6-11
6-11-3 Checking the PT Setting Status
The direct connection settings of the NT31/NT31C screen data, and the settings for serial port A and serial port B, can be checked.
Screen Configuration and
Display Contents
There are the following three PT setting status screens.
[ ] (next screen) [ ] (next screen)
[ ] (previous screen) [ ] (previous screen)
[ ] (next screen)
[ ] (previous screen)
Display Contents of The First Screen
Item
Screen Data Type
Meaning
The host type set for the screen data
PT Control Area Word at the host to which the PT status control area is allocated
PT Notification Area Word at the host to which the PT status notify area is allocated
Window Control Area Word at the host to which the window control area is allocated
Numeric Expression Default for the method of interpretation of the contents of host words to which numeral memory tables are allocated (numeric value storage method).
Expansion I/F
Compatibility
Type of Unit installed at the expansion interface connector
Sets whether or not to use NT30/620 compatible mode for screen data. (Sets whether to operate as a normal NT31/631 or emulate many key NT30/620 characteristics.)
Display Contents of The Second Screen
Item
Comm. Port A
Comm. Method
Comm. Setting
Meaning
Communications type set for serial port A (fixed as RS-232C)
Communications method set for serial port A
Communications conditions set for serial port A (display contents differ according to the communications method)
Display Contents of The Third Screen
Item
Comm. Port B
Comm. Method
Comm. Setting
Meaning
Communications type set for serial port B (RS-232C/RS-
422A)
Communications method set for serial port B
Communications settings set for serial port B (display contents differ according to the communications method)
197
System Maintenance
Display Method
Section 6-11
Display the PT setting statuses by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select PT Settings.
Switch the screen as required by pressing the [
↓] (next screen) or [↑] (previous screen) touch switch.
Press Quit.
The NT31/NT31C returns to the
MAINTENANCE MODE MENU screen.
6-11-4 Displaying and Printing the Display History Record
The display history record function is a function that records the order of display of each screen during operation, and the number of times each screen is displayed. Only the screens for which the display history screen attribute has been set in advance are processed by this function.
The record data can be displayed, and printed out at a printer connected to the NT31/NT31C by operation from the System Menu.
This section explains how to display and print out the display history record data recorded in the NT31/NT31C.
Note that there are two display methods sort by occurrence (display time order) and sort by frequency (order of number of times displayed).
198
System Maintenance
Reference:
Section 6-11
• With the NT31/NT31C, the record data can also be displayed by calling screen No. 9001 (sort by occurrence) or screen No. 9002 (sort by frequency) during the RUN mode.
• For details on the display history record function, refer to 2-15-1 Display
History Record Function in the Reference Manual.
• The order of display for sort by occurrence display (from oldest record or from newest record) is set with the Hist. Disp. Method memory switch
• The printing method and other information must be set in advance with
the Printer Controller (page 173) and Print Method (page 175) memory
switches.
Display and print the display history record data by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Display History.
Select Sort by Occurrence or Sort by
Frequency.
If necessary, select the next or previous screen by pressing [
↓] (next screen) or [↑]
(previous screen).
The example screen to the left shows a display for the sort by occurrence method (from oldest record).
199
System Maintenance
Section 6-11
If required, press Prt. to print the display history record data.
Press Quit.
The NT31/NT31C returns to the
DISPLAY HISTORY MENU screen.
Example Print-out
All of the recorded data is printed out in the same order as on the currently displayed screen.
Example:
Sort by occurrence, from oldest record
2
3
4
No.
Scrn YY/MM/DD HH:MM Comment
1 1 98/01/12 10:21 Coolant Error
2
8
98/01/12
98/01/13
2000 98/01/13
11:53
09:35
14:22
Motor Error
Compressor Error
Emergency Stop
01/01
6-11-5 Displaying and Printing the Alarm History Record
The alarm history record function is a function that continually monitors, during operation, the status of bits at the host designated in advance with a bit memory table, and records the time when these bits come ON, and the number of times they come ON.
The record data can be displayed, and printed out at a printer connected to the NT31/NT31C by operation from the System Menu.
This section explains how to display and print out the alarm history record data recorded in the NT31/NT31C.
Note that there are two display methods sort by occurrence (ON time order) and sort by frequency (order of number of times the bits have come ON).
Reference:
• With the NT31/NT31C, the record data can also be displayed by registering an alarm history display element on the screen.
• For details on the alarm history record function, refer to 2-15-2 Alarm His-
tory Record Function in the Reference Manual.
• The order of display for sort by occurrence display (from oldest record or from newest record) is set with the Hist. Disp. Method memory switch
• The printing method and other information must be set in advance with
the Printer Controller (page 173) and Print Method (page 175) memory
switches.
200
System Maintenance
Section 6-11
Display and print the alarm history record data by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Alarm History.
Select Sort by Occurrence or Sort by
Frequency.
If necessary, select the next or previous screen by pressing [
↓] (next screen) or
[
↑] (previous screen).
The example screen to the left shows a display for the sort by occurrence method
(from oldest record).
If required, press Prt. to print the display history record data.
201
System Maintenance
Section 6-11
Press Quit.
The NT31/NT31C returns to the ALARM
HISTORY MENU screen.
Example Print-out
All of the recorded data is printed out in the same order as on the currently displayed screen.
Example:
Sort by occurrence method, from oldest record
2
3
No.
Comment
1 Remote I/O Error
PIC Unit Error
Cycle Time Over
YY/MM/DD HH:MM 01/01
98/02/06 16:02
98/02/07
98/02/17
09:21
15:44
6-11-6 Checking Screen Data
The NT31/NT31C allows the registered screens (Nos. 1 to 3999) to be displayed and checked by operation from the System Menu.
Reference:
• Window screens cannot be displayed by operation from the System
Menu.
• Only the user screens (Nos. 1 to 3999) can be displayed. Screens for system use cannot be displayed.
Specifying The Display Method
Specify the display method for the screens as indicated in the table below.
Setting Item
Display of Lamp/
Touch SW No.
Display of Memory
Table No.
Function
Allows designation of whether the bit number of the lamp bit set for a lamp or touch switch is displayed or not.
The display format is as follows L @
❍❍❍❍❍❍❍ (@: area type, ❍❍❍❍❍❍❍: bit number).
Allows designation of whether the table numbers of numeral and character string memory tables are displayed or not.
The display format for numeral memory tables is N
❍❍❍❍ and the display format for character string memory tables is S
❍❍❍❍.
This function is valid for the following display elements.
- Numeral displays
- Character string displays
- Bar graphs
- Numeral setting input fields (including thumbwheel type)
- Character string input fields
Allows designation of whether image/library code numbers are displayed or not.
Setting
Options
ON, OFF*
ON, OFF*
ON, OFF* Display of image/
Library No.
Display of Broken
Line Frame
Allows designation of whether or not broken line frames are displayed around the display elements for showing the positions registered.
ON, OFF*
* Default (factory) setting
202
System Maintenance
Reference:
Section 6-11
Each setting of the screen data check is effective only on this menu. Exiting from this screen data check menu resets the settings to the default (all the settings are set to OFF).
Operations On The SCREEN DATA CHECK Screen
The function shown below can be set on the SCREEN DATA CHECK screen.
Use this function as required when displaying complex screens on which multiple display elements have been registered overlapping each other.
a) Equivalent to 2 touch switches (14.4 mm) c) b) Equivalent to 2 touch switches (14.4 mm) a.
Display the previous display element on the upper most portion of the screen in the order in which the display elements were registered (excluding fixed display elements).
b.
Display the next display element on the upper most portion of the screen in the order in which the display elements were registered (excluding fixed display elements).
c.
Return to the screen on which screens are specified.
203
System Maintenance
Display the SCREEN DATA
CHECK Screen
Section 6-11
Display the SCREEN DATA CHECK screen by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select Screen Data Disp.
Specify the screen to be displayed in the input field in the middle of the screen.
Each of the digits can be incremented or decremented by pressing the associated
+ and
− keys.
Press Set.
Press the touch switches to specify the display method in each case.
The setting option changes each time a touch switch is pressed.
204
System Maintenance
Section 6-11
Press Quit to return to the screen number selection screen.
Press Disp.
BOILER OPERATION
T 015003
RUN
L 020000
Start
Confirmation
T 015301
STOP
L 020005
Stop
Confirmation
T 016312
ERROR
L 020013
Error
Occurrence
Touching the top or bottom of the screen changes the way the display elements overlap each other in the order in which they are registered.
In this example, the bottom portion of the touch switch, which is under the lamp, will be displayed over the lamp.
BOILER OPERATION
T 015003
RUN
L 020000
Start
Confirmation
T 015301
STOP
L 020005
Stop
Confirmation
T 016312
ERROR
L 020013
Error
Occurrence
When you have finished checking the screen, press the central part of the screen to return to the screen number selection screen.
If you wish to continue by checking another screen, repeat the operation, starting by specifying the screen number.
To end the operation, press Quit on the screen number selection screen. The
NT31/NT31C returns to the MAINTENANCE MODE MENU screen.
6-11-7 Device Check
The NT31/NT31C provides checks on the functions of the following items.
• Buzzer
• LED
• LCD
• Backlight
• Screen data memory
• Touch switches
• Battery voltage
205
System Maintenance
Checking the Buzzer
Reference:
Section 6-11
Check if the buzzer sounds correctly.
The buzzer will sound in this check regardless of the setting made with the
Buzzer Sound memory switch.
Check the buzzer by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select I/O Check.
Select Device Check.
Select Buzzer Check.
• If the buzzer functions correctly, it will sound continuously. At this time, the
Buzzer Check touch switch will be displayed in reverse video.
• To stop the buzzer while it is sounding, press the Buzzer Check touch switch again.
206
System Maintenance
Checking the RUN LED
Section 6-11
Check if the RUN LED functions normally.
Check the RUN LED by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select I/O Check.
Select Device Check.
Select LED Check.
• If the RUN LED is functioning normally, it will operate as follows. At this time the LED Check touch switch will be displayed in reverse video.
Lit in green - OFF - lit in red - OFF - lit in green...
• To end the LED check, press the LED Check touch switch on the DEVICE
CHECK MENU screen again.
207
System Maintenance
Checking the LCD (Screen
Display)
Section 6-11
Check if the LCD (screen display) functions normally by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select I/O Check.
Select Device Check.
Select LCD Check.
• The check screen displays all the dots on the screen: either press anywhere on the touch panel or wait for three seconds and all the dots will be cleared.
With the NT31C, the display and clearance of all the dots on the screen is repeated for each color in turn (red green blue magenta cyan yellow white black).
On completion of the display and clearance of all dots, the NT31/
NT31C returns to the DEVICE CHECK MENU screen.
• Touch the touch panel to discontinue the LCD check. Even if 3 seconds have not passed, the check will proceed to the next color.
208
System Maintenance
Checking the Backlight
Section 6-11
Check if the backlight functions normally by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select I/O Check.
Select Device Check.
Select Backlight Check.
Screen Data Memory
Check
Reference:
• If the backlight is normal, it flashes. At this time, the Backlight Check touch switch is displayed in reverse video.
• To end the backlight check, press the Backlight Check touch switch again.
Check if the screen data memory is functioning normally.
• In the screen data memory check, a write test is performed on the screen data memory. Since all the screen data in the NT31/NT31C is lost in this check, confirm that this data is backed up at the Support Tool or Memory
Unit before executing it.
• If writing to the screen data memory is disabled by the setting for System
Settings in the System Installer mode, it is not possible to execute a screen data check.
209
System Maintenance
Section 6-11
• Once a screen data check has been started, it cannot be stopped.
Check the screen data memory by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select I/O Check.
Select Device Check.
Select Screen Memory.
Press Execute.
• During the check, the message Checking Now... is displayed.
210
System Maintenance
Checking Touch Switches
Section 6-11
• On normal completion of the check, the message Memory Check OK is displayed.
• If an error is discovered in the check, the message Memory Check NG is displayed.
After confirming the result of the check, press Quit. The NT31/NT31C returns to the DEVICE CHECK MENU screen.
Check whether or not the touch switches function normally by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select I/O Check.
Select Device Check.
211
System Maintenance
Select Touch Switch.
Section 6-11
Press the touch switches displayed on the screen. A touch switch is normal if it is displayed in reverse video while pressed.
Reference:
To end the check, press the touch switch at the top right corner (NT31: displayed in reverse video; NT31C: displayed in yellow). The NT31/NT31C will return to the DEVICE CHECK MENU.
• The hosts is not notified of the operation of touch switches pressed during the I/O check.
• The check cannot be performed until the touch switch at the top right corner is displayed in reverse video (for NT31) or displayed in yellow
(NT31C). Start the check after the status of the touch switch at the top right corner has changed.
212
System Maintenance
Checking the Battery
Voltage
Section 6-11
Check the voltage of the NT31/NT31C’s built-in battery by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select I/O Check.
Select Device Check.
Select Battery.
The voltage is within the normal range. or The voltage is lowered. is displayed.
After confirming the result of the check, press Quit. The NT31/NT31C returns to the DEVICE CHECK MENU screen.
213
System Maintenance
Section 6-11
Note
When The voltage is lowered is displayed, replace the built-in battery immedi-
ately. For details on the replacement method, refer to 7-3-1 Replacing the Bat-
6-11-8 Checking Interfaces
The NT31/NT31C allows the following communications functions to be checked.
• Communications with the Support Tool
• Communications at serial ports
• Communications with printers
Checking
Communications with the
Support Tool
Check communications with the Support Tool by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select I/O Check.
Select I/F Check.
214
System Maintenance
Select Tool Comm..
Section 6-11
The check on communications with the
Support Tool starts.
Checking
Communications at Serial
Ports
• If communications with the Support Tool is normal, data transmitted from the Support Tool is displayed as hexadecimal data when received by the
NT31/NT31C.
After confirming the result of the test, press Quit. The NT31/NT31C returns to the I/F CHECK MENU screen.
Check communications at the serial ports (A, B).
Check Screen
The check screen and check method differ according to the communications method set for the port to be checked.
For Host Link
Example: Serial port A while using the host link
Press Execute to start the check. The data for checking communications is sent to the host, and is displayed as the Sending Data in hexadecimal.
• If communications with the host is normal, the reply from the host is displayed at Received Data in hexadecimal.
• If a communications error occurs while checking the communications conditions with the host, a communications error screen is displayed. Since this indicates that there is a communications fault, check the communications cables and settings.
215
System Maintenance
For NT Link (1:1 or 1:N)
Example: Serial port B while using the NT Link (1:N)
Section 6-11
Press Execute to start the check. The data for checking communications is sent to the host, and is displayed as
∗∗ symbols at Sending Data.
• If communications with the host are normal, the reply from the host is displayed at Received Data as
∗∗ symbols.
• If a communications error occurs while checking the communications conditions with the host, a communications error screen is displayed. Since this indicates that there is a communications fault, check the communications cables and settings.
For Memory Link
Example: Serial port A while using the memory link
The check is started as soon as the check screen is displayed. Send the command from the host.
• If communications with the host is normal, the data received from the host is displayed in hexadecimal text code at Received Data.
• If nothing is displayed at Received Data when the command is sent from the host, there is a communications fault: check the communications cables and settings.
For a Bar Code Reader
The check starts when the check screen is displayed. Read data with the bar code reader in this status.
• If communications with the bar code reader is normal, the read character strings are displayed in hexadecimal text code at Received Data.
216
System Maintenance
Section 6-11
• If nothing is displayed at Received Data when data is read with the bar code reader, there is a communications fault: check the communications cables and settings.
Check Method
Check communications with the serial ports by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select I/O Check.
Select I/F Check.
Select Comm. Port A or Comm. Port B.
The check screen is displayed (Check
After confirming the result of the check, press Quit. The NT31/NT31C returns to the I/F CHECK MENU screen.
217
System Maintenance
Checking
Communications with a
Printer
Section 6-11
Check communications with a printer by following the menu operation from the System Menu shown below.
Ver 4.12
Select Maintenance Mode.
Select I/O Check.
Select I/F Check.
Select Printer.
Confirm that a printer is connected to the
NT31/NT31C, then press Execute:
Printer Interface Check will be printed out at the printer.
• While data is being sent to the printer, the message Checking Now... is displayed.
218
Programming Console Function
Section 6-12
• When the sending of data to the printer is completed, Finished Normal by
Printer Interface Check is displayed.
• If data does not reach the printer within 60 seconds after sending starts, the message ‘Finished Printer output failed’ is displayed.
After confirming the result of the check, press Quit. The NT31/NT31C returns to the I/F CHECK MENU screen.
6-12 Programming Console Function
The NT31/NT31C has been equipped with the Programming Console function, which allows it to be used like a C200H-PRO27-E Programming Console for CPM1, CPM2A, CPM2C, CQM1, CQM1H, C200HX/HG/HE (-Z)E, CS/CJseries, or SRM1 PLCs.
Except for recording (saving) ladder programs on cassette tape and replaying
(reading) them, almost all the functions of a Programming Console can be executed.
Note
When the programmable controller functions are used, carefully check that the system is safe before carrying out the following operations.
• Changing monitor data
• Switching the operating mode
• Forced set or reset
• Changing a present value or set value
219
Programming Console Function
Section 6-12
6-12-1 Usable Systems
The Programming Console function can communicate with the PLC with the communications methods indicated in the following table.
Communications
Method
Communications
Type
NT Link (1:1) RS-232C
Applicable PLCs Connected
Port
NT Link
(1:N)
C200HE-CPU42-(Z)E
(*1)
C200HG-CPU43/63-(Z)E
(*1)
C200HX-CPU44/64-(Z)E
(*1)
C200HX-CPU65-ZE
(*1)
C200HX-CPU85-ZE
(*1)
CPM2A-30CD @@-@
(*1)
CPM2A-40CD @@-@
(*1)
CPM2A-60CD @@-@
(*1)
CPM2C-10 @@@@@@-@
(*2)
CPM2C-20 @@@@@@-@
(*2)
CQM1-CPU4
@-EV1
(*1)
CQM1H-CPU21/51/61
(*1)
SRM1-C02-V2
CPM1-10CDR-
@
CPM1-20CDR@
CPM1A-10CD @-@
CPM1A-20CD @-@
CPM1A-30CD @-@
CPM1A-40CD @-@
CS1G-CPU42/43/44/45-E(V1)
(*1)
CS1H-CPU63/64/65/66/67-E(V1)
(*1)
CSJG-CPU42H/43H/44H/45H
CS1H-CPU63H/64H/65H/66H/67H
CS1D-CPU66H/67H
CJ1G-CPU44/45
CJ1G-CPU42H/43H/44H/45H
CJ1H-CPU65H/66H/67H
CJ1M-CPU11/12/13/21/22/23
CPU Unit’s built-in RS-
232C port
Peripheral port
(*3)
• CPU Unit’s built-in RS-
232C port
• Peripheral port
(*4)
Reference:
*1
The peripheral port Programming Console always has priority. If a Programming Console is connected later, the Programming Console function of the NT31/NT31C is invalidated and operation from the NT31/NT31C becomes impossible.
*2
The CPM2C-CN111 Connecting Cable splits the PLC’s Communications
Port into a RS-232C port and a peripheral port.
*3
An RS-232C cable cannot be connected to the peripheral port. An RS-
232C adapter (CPM1-CIF01) is required.
*4
The RS-232C cable cannot be directly connected to the peripheral port. An
RS-232C converting cable (CS1W-CN118) is required.:
Note that the Programming Console function cannot be used with CPM1,
CQM1, and C200HX/HG/HE PLCs of the following lot numbers.
CPM1: @@@5, @@*6
220
Programming Console Function
Section 6-12
where * is a number in the range 1 to 9 or the letter X or Y.
CQM1: @@@3, @@@4, @@@5, @@*6 where * is a number in the range 1 to 9 or the letter X or Y.
C200HX/HG/HE: @@@5 @@*6 where * is a number in the range 1 to 9 or the letter X or Y.
6-12-2 Connection Method
CQM1, CQM1H, C200HX/
HG/HE(-ZE), or SRM1
CPM1 or CPM2A
CPM2C
CS/CJ Series
The connection method is exactly the same as for the NT Link (1:1). Refer to
SECTION 4 Connecting to the Host from the RS-232C Port or SECTION 5
Connecting to the Host from the RS-422A/485 Port for details on connecting
to the PLC.
* When using the Programming Console function with a CQM1H, turn ON pin
7 of the DIP switch on the front of the CQM1H’s CPU Unit.
The connection method is the same as for the NT Link (1:1). With a CPM1, connect the RS-232C cable to the peripheral port via a CPM1-CIF01 RS-
232C Adapter or CPM1-CIF11 RS-422A Adapter.
Refer to SECTION 4 Connecting to the Host from the RS-232C Port or SEC-
TION 5 Connecting to the Host from the RS-422A/485 Port for details on con-
necting to the PLC.
The connection method is the same as for the NT Link (1:1). Connect to the
PLC’s communications connector with a CPM2C-CN111 or CS1W-CN114/
118 Connecting Cable, a CPM1-CIF01 RS-232C Adapter, or a CPM1-CIF11
RS-422A Adapter.
Refer to SECTION 4 Connecting to the Host from the RS-232C Port or SEC-
TION 5 Connecting to the Host from the RS-422A/485 Port for details on con-
necting to the PLC.
* When using the Programming Console function with a CPM2C, turn ON pin
2 of the DIP switch on the front of the CPM2C’s CPU Unit.
The connection method is exactly the same as for the NT Link (1:N) (standard
or high-speed). Refer to SECTION 4 Connecting to the Host from the RS-
232C Port or SECTION 5 Connecting to the Host from the RS-422A/485 Port
for details on connecting to the PLC. The standard or high-speed 1:N NT Link can be used.
The Programming Console function can be used only when the PT’s unit number is set to 0. Only one Unit using the Programming Console function can be connected to each of the PLC’s ports (built-in RS-232C port and peripheral port).
When using the Programming Console function, make sure that the maximum unit number for the PT is set to 0 in the PLC Setup of the CS/CJ-series PLC.
With a CS/CJ-series PLC, the Programming Console function cannot be used simultaneously at both the built-in RS-232C port and peripheral port. Furthermore, the Programming Console function cannot be started at the RS-232C port while a Programming Console is connected to the peripheral port.
221
Programming Console Function
Section 6-12
6-12-3 Method of Use
The Programming Console screen is displayed by operating the system menu as described below.
Ver 4.12
Select Expansion Mode.
Select Programming Console.
Reference:
The Programming Console screen is displayed.
Press the Programming Console sheet keys (touch switches) for the operation.
Press the Quit touch switch to exit the screen.
An error is displayed if a wrong communications protocol is selected or a
Programming Console is connected to the peripheral port.
(*1)
*1
With the CS1G/CS1H, the Programming Console function cannot be used simultaneously at both the built-in RS-232C port and peripheral port.
When an error screen is displayed, the system menu can be displayed by pressing two of the four corners of the touch panel simultaneously. The Check touch switch on the screen can also be used to display the system menu, but it will not work unless the cause of the error has been removed. If the system menu is not displayed when the Check touch switch is pressed, press two of the four corners of the touch panel to return to the system menu.
222
Programming Console Function
Key Operations
Section 6-12
Mode Selection Keys, Mode Lock Key
The display element on the Programming Console screen shown below comprises the mode selection keys, which change the operation mode of the PLC, and the mode lock key, which prevents unintended mode changes.
Mode selection keys
Mode lock key
The RUN, MONITOR, and PROGRAM mode selection key elements are touch switches and pressing them causes the PLC operation mode to change
(unlike an actual Programming Console, it is possible to switch directly between the RUN mode and the PROGRAM mode.)
When the Programming Console function is started, the PLC operation status is read and reflected at the PLC.
The mode lock key element is also a touch switch, and it alternates between the lock ON (with no key displayed) and lock OFF (with key displayed) states when pressed. During the lock ON state, mode selection key operations are ineffective. The mode displays change as indicated in the figures below during the lock ON status and during the lock OFF status.
When the Programming Console function starts, the lock ON status is established.
If the RUN, MONITOR, or PROGRAM mode selection key is pressed in the lock OFF status, the mode changes and the lock ON status is established.
During Lock OFF
RUN mode MONITOR mode PROGRAM mode
During Lock ON
RUN mode MONITOR mode PROGRAM mode
Programming Console Keyboard
The Programming Console keyboard used on the screen when the Programming Console function is used is comprised entirely of touch switches (shown by the dashed line frames in the figure below). On pressing a touch switch, a key operation is executed. However, since there is a discrepancy between the size of the displayed keys and the size of the touch switches, take care to press as close to the center of the key as possible by referring to the figure below.
223
Programming Console Function
Section 6-12
In addition, if the connected host is the CS1G/CS1H, the Programming Console key sheet for the CS Series is automatically displayed.
Standard Programming Console Key Sheet
Programming Console Key Sheet for CS1 Series
Differences with Respect to Programming Consoles
• Programs cannot be stored (recorded) or read (replayed). If it is necessary to store or read a program, use a Programming Device.
• It is not possible to adjust the volume of the key press sound. Whether or not the key press sound sounds is determined by the setting for the Key
Press Sound memory switch of the NT31/NT31C. It sounds when the set-
ting is ON and does not when the setting is OFF (page 171).
• If an error occurs when using the Programming Console function, an error screen is displayed. Whether or not the buzzer sounds at this time is determined by the setting for the Buzzer Sound memory switch of the
224
Device Monitor Function
Reference:
Section 6-13
A communications error will occur if you use the Programming Console function to change the communications settings (in the PLC Setup) that govern the port to which the NT31/NT31C is connected. In this case, the Programming
Console function will be unusable.
6-13 Device Monitor Function
The NT31/NT31C has been equipped with the Device Monitor function which can be used to change the PLC’s operating mode, read/change words in the
PLC’s data areas, and display the PLC’s error log of a CS/CJ-series PLC,
CPM1, CPM2A, CPM2C, CQM1, CQM1H, C200HX/HG/HE(-Z)E, or SRM1.
The Device Monitor can perform the following operations:
• Changing the PLC’s operating mode
• Displaying/changing the contents of words, displaying/changing the status of bits, force-setting/force-resetting the status of bits (Registration Monitor)
• Listing the contents of a range of words (Continuous Monitor)
• Displaying the error log and clearing errors (Error Log)
This section provides an overview of the Device Monitor function and explains how to connect to the PLC. For more details, refer to 2-16 Device Monitor
Function in the Reference Manual.
!Caution Be sure that it is safe to proceed before using the Device Monitor function to perform one of the following operations from the PT.
Reference:
Changing monitored data
Switching the PLC’s operating mode
Force setting or force resetting bits
Changing PVs or SVs
• The Device Monitor function can be used with Ver. 3.0 and higher versions of the PT system program only.
• The Device Monitor functions are almost identical to the functions of the
Data Access Console (DAC).
• The Device Monitor function cannot be used with host link or memory link communications.
225
Device Monitor Function
Section 6-13
6-13-1 Compatible Systems
The following table shows the combinations of communications methods and
PLCs that can support the PT’s Device Monitor function.
Communications method
1:1 NT Link
1:N NT Link
PLC model
C200HS-CPU21/23/31/33-E
C200HE-CPU32/42 (-Z)E
C200HG-CPU33/43/53/63 (-Z)E
C200HX-CPU34/44/54/64 (-Z)E
C200HX-CPU65-ZE
C200HX-CPU85-ZE
CPM1-10CDR-
@
*1
CPM1-20CDR@
*1
CPM1A-10CD @-@
*1
CPM1A-20CD @-@
*1
CPM1A-30CD @-@
*1
CPM1A-40CD
@-@
*1
CPM2A-30CD
@@-@
CPM2A-40CD
@@-@
CPM2A-60CD
@@-@
CPM2C-10 @@@@@@-@
*2
CPM2C-20 @@@@@@-@
*2
CQM1-CPU4 @-EV1
CQM1H-CPU21/51/61
SRM1-C02-V2
C200HE-CPU32/42 (-Z)E
C200HG-CPU33/43/53/63 (-Z)E
C200HX-CPU34/44/54/64 (-Z)E
C200HX-CPU65-ZE
C200HX-CPU85-ZE
CQM1H-CPU21/51/61
SRM1-C02-V2
CS1G-CPU42/43/44/45-E(V1)
CS1H-CPU63/64/65/66/67-E(V1)
CS1G-CPU42H/43H/44H/45H
CS1H-CPU63H/64H/65H/66H/67H
CS1D-CPU65H/67H
CJ1G-CPU44/45
CJ1G-CPU42H/43H/44H/45H
CJ1H-CPU65H/66H/67H
CJ1M-CPU11/12/13/21/22/23
*1
A CPM1-CIF01 RS-232C Adapter is required.
*2
Use a Conversion Cable (CPM2C-CN111 or CS1W-CN114/118), CPM1-
CIF01 RS-232C Adapter, or CPM1-CIF11 RS-422A Adapter to connect to the PLC.
6-13-2 Connection Method
CQM1H or C200HX/HG/
HE(-ZE)
CQM1 or C200HS
The 1:1 NT Link or 1:N NT Link can be used. The connection method is
exactly the same as for the 1:1 NT Link or 1:N NT Link. Refer to SECTION 4
Connecting to the Host from the RS-232C Port or SECTION 5 Connecting to
the Host from the RS-422A/485 Port for details on connecting to the PLC.
The 1:1 NT Link can be used. The connection method is exactly the same as
for the 1:1 NT Link. Refer to SECTION 4 Connecting to the Host from the RS-
232C Port or SECTION 5 Connecting to the Host from the RS-422A/485 Port
for details on connecting to the PLC.
226
Device Monitor Function
CPM1, CPM2A, or SRM1
CPM2C
CS/CJ Series
Section 6-13
The 1:1 NT Link can be used in all CPU Units and the 1:N NT Link can also be used in -V2 and higher versions of the SRM1. The connection method is exactly the same as for the 1:1 NT Link or 1:N NT Link. With a CPM1, connect the RS-232C cable to the peripheral port via a CPM1-CIF01 RS-232C
Adapter or CPM1-CIF11 RS-422A Adapter.
Refer to SECTION 4 Connecting to the Host from the RS-232C Port or SEC-
TION 5 Connecting to the Host from the RS-422A/485 Port for details on con-
necting to the PLC.
The 1:1 NT Link can be used. The connection method is the same as for the
NT Link (1:1). Connect to the PLC’s communications connector with a
CPM2C-CN111 or CS1W-CN114/118 Connecting Cable, a CPM1-CIF01 RS-
232C Adapter, or a CPM1-CIF11 RS-422A Adapter.
Refer to SECTION 4 Connecting to the Host from the RS-232C Port or SEC-
TION 5 Connecting to the Host from the RS-422A/485 Port for details on con-
necting to the PLC.
The 1:N NT Link (standard or high-speed) can be used. The connection method is exactly the same as for the 1:N NT Link.
Refer to SECTION 4 Connecting to the Host from the RS-232C Port or SEC-
TION 5 Connecting to the Host from the RS-422A/485 Port for details on con-
necting to the PLC.
227
Version Display
Section 6-14
6-13-3 Method of Use
The Device Monitor screen is displayed by operating the system menu as described below.
Ver 4.12
Select Expansion Mode.
Select Device Monitor.
An error message will be displayed if the wrong communications protocol is selected.
The Device Monitor screen is displayed.
Reference:
When an error screen is displayed, the system menu can be displayed by pressing two of the four corners of the touch panel simultaneously. The Check touch switch on the screen can also be used to display the system menu, but it will not work unless the cause of the error has been removed. If the system menu is not displayed when the Check touch switch is pressed, press two of the four corners of the touch panel to return to the system menu.
For more details on operations of the Device Monitor function, refer to 2-16
Device Monitor Function in the Reference Manual.
6-14 Version Display
Use the Version Display function to check the version of the NT31/NT31C’s system program. The Version Display screen shows the model, creation date, and version of the system program installed in the NT31/31C.
228
Version Display
Section 6-14
6-14-1 Method of Use
The Version Display screen is displayed by operating the system menu as described below.
Ver 4.12
Select Expansion Mode.
Select Version Display.
Reference:
The system program's version information will be displayed as described below.
Press the Quit touch switch to exit the
Version Display screen and return to the
Expansion Mode screen.
• PT Model:
PT model number
• System program: System program name
• Version
• Date
System program version
Date program was created.
This screen is an example. Actual screens will show the information specific to the PT and system program being used.
After checking the version information, press the Quit touch switch to exit the
Version Display screen and return to the Expansion Mode screen.
• The PT model always shows the model number of the ivory model of the
PT. The B suffix will not be displayed, even for black models.
• The system program’s version number is also displayed in the upper-right corner of the System Menu.
• The creation date does not always match the file date of the system program installed with the System Installer.
229
Version Display
Section 6-14
230
SECTION 7
Troubleshooting and Maintenance
This section describes the action to take when errors occur in the PT, and how to carry out maintenance and inspection to prevent the occurrence of errors.
7-2 Responding to Displayed Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-2-1 Errors Occurring at Start of Operation and Their Remedies . . . . . .
7-2-2 Errors Occurring during Operation and Their Remedies. . . . . . . . .
7-2-3 Errors Occurring on Screen Data Initialization and Transmission .
7-2-4 Errors in the System Installer Mode and Their Remedies . . . . . . . .
7-2-5 Communications Errors and Their Remedies . . . . . . . . . . . . . . . . .
7-3 Maintenance of the NT31/NT31C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-3-1 Replacing the Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
231
Troubleshooting
Section 7-1
7-1 Troubleshooting
When a fault relating to the operation of the NT31/NT31C occurs, find the symptoms in the table below and respond by following the corresponding
Remedy indicated in the table.
Note
1.
Confirm system safety before turning the power ON/OFF or resetting.
2.
Do not disassemble the PT for repair or modification.
NT31/NT31C Symptoms
Power LED fails to come
ON.
Nothing is displayed on the screen.
Cannot communicate with the Support Tool.
Cannot communicate with the host.
Cannot switch from the system initializing screen.
Communications error message is displayed when communicating to the host.
The buzzer has sounded and the RUN LED is OFF.
The touch panel does not respond.
The PLC mode has changed to the monitor mode.
Power supply fuse has blown.
Screen No. 0 has been read at the host side.
Cause
Power is not being supplied.
Remedy
Check the connections and make sure that power is
supplied correctly. (3-1-3 Power Supply Connection, page 31)
Contact your OMRON service center.
This is not an error. Change the screen number from screen number 0. (Setting the screen number to 0 turns the screen off.)
The system startup waiting time has not elapsed yet.
The Transmit mode has not been established.
Not connected to the Support Tool.
This is not an error. The display will appear after the waiting time has elapsed.
Display the System Menu and select the Transmit
mode. (6-6 Transmitting the Screen Data)
Check the installation of the connector cable. (3-2
Connecting to the Support Tool)
The PT model setting and direct connection setting at the Support Tool do not match the NT31/NT31C.
Using the PT Configuration settings of the Support
Tool, set the PT model and direct connection settings that match the NT31/NT31C.
Memory switch settings do not match. Check the communications setting in the Memory
Switch menu of the Maintenance mode, and match the communications protocol settings for the host and
NT31/NT31C. (6-7 Setting Conditions for Communi-
cations with Host by Using Memory Switches)
NT31/NT31C and host are not correctly connected.
Check that the type, length, and installation of the
connector cable match the specifications. (SECTION
4 Connecting to the Host from the RS-232C Port, and
SECTION 5 Connecting to the Host from the RS-
In an RS-422A/485 connection, the terminator setting is incorrect.
Make the NT31/NT31C and PLC termination resis-
tance settings correctly. (SECTION 4 Connecting to
the Host from the RS-232C Port, and SECTION 5
Connecting to the Host from the RS-422A/485 Port)
In an NT Link (1:N) connection, there is duplication in the unit numbers.
Make the settings again so that there is no duplica-
tion. (6-7-4 Setting the NT Link (1:N) Method (Stan-
Check the power supply.
The power to the NT31/NT31C, NT-
AL001 or host is OFF.
Malfunction due to external noise Carry out grounding work in accordance with the
conditions by referring to 3-1-4 Grounding, page 32.
Contact your OMRON service center.
The NT31/NT31 has developed trouble.
Malfunction due to external noise
The touch panel is broken.
The NT31/NT31C changes the mode when host link communications are used.
Carry out grounding work in accordance with the
conditions by referring to 3-1-4 Grounding, page 32.
Test the touch panel with I/O Check in the MAINTE-
NANCE MODE menu. If there is an error, contact your OMRON service center.
This is an NT31/NT31C specification. When using a
PLC that can also be connected using the NT Link method, use an NT Link connection (there is no mode change with the NT Link method).
232
Troubleshooting
Section 7-1
NT31/NT31C Symptoms
The graph display does not change.
The trend graph display does not agree with the actual time axis.
The Programming Console function cannot be used.
The Device Monitor function cannot be used.
The memory table display contents differ from the initial value set at the Support Tool.
Updating of numeric values and text is delayed.
Cause
One of the percentage display settings —
−100%, 0%, or 100% — is incorrect.
The cycle for graph display update processing is longer than the set sampling cycle.
The communications settings are incorrect.
A Programming Console is connected.
The PLC does not support the Programming Console function.
The system program for other vendor’s PLCs has been installed. (PLC models other than OMRON.)
The communications settings are not correct.
Remedy
Set the
−100%, 0%, and 100% values in the following relationship:
−100% value < 0% value < 100% value
Delete other elements on the same screen as the trend graph that are allocated to the host and have a high update frequency. Or lengthen the sampling cycle.
Set the communications method as follows when using the Programming Console function.
With C-series PLC: 1:1 NT Link
With CS/CJ-series PLC:
1:N NT Link (standard or high-speed)
It is not possible to use a Programming Console and the Programming Console function at the same time.
Disconnect the Programming Console.
Not all PLCs support the Programming Console func-
tion. Check the model of PLC you are using. (6-12
The Programming Console function can be used only when the system program for OMRON PLCs is installed. Install the correct system program.
Set the communications method as follows when using the Device Monitor function.
With C-series PLCs: 1:1 NT Link or 1:N NT Link
With CS/CJ-series PLCs:
1:N NT Link (standard or high-speed)
The PLC does not support the Device
Monitor function.
The system program installed in the
PT is for a PLC maker other than
OMRON.
Not all PLCs support the Device Monitor function.
Check the model of PLC you are using. Refer to 6-13
Device Monitor Function for details.
The Device Monitor function can be used only when the PT is connected to a PT with the system program for OMRON PLCs installed. Install a system program that supports the Device Monitor function.
When the contents of the memory table are set as a fixed value, do not allocate the memory table to the host.
Since the memory table is allocated to the host memory, the display is updated in accordance with the contents of the host memory.
The battery voltage has dropped and the data in the memory table has been destroyed.
Since ON is set for the resume function, the initial values of the screen data memory are not written to the memory tables.
The numeral memory table is specified as the destination for a mathematical table’s results.
Malfunction due to external noise
There are too many numeral/text displays on the displayed screen.
The cycle time is extended due to heavy processing at the host.
In an RS-422A/485 connection, there is illegal branching or an erroneous terminator setting.
Replace the battery and execute memory table initial-
ization. (7-3-1 Replacing the Battery, page 243, and
6-4-5 Initializing the Memory Tables, page 147)
Execute memory table initialization. (6-4-5 Initializing
If the resume function does not need to be used, use
the NT31/NT31C with the resume function OFF. (6-9-
10 Setting the Resume Function, page 182)
Calculations are executed continuously while the PT is operating and the calculation results are automatically written to the memory table. Specify another numeral memory table or a word in the host.
Carry out grounding work in accordance with the
conditions by referring to 3-1-4 Grounding, page 32.
Reduce the number of numeral/text displays on the screen for which updating is delayed.
Shorten the host cycle time.
Wire correctly by referring to SECTION 5 Connecting
to the Host from the RS-422A/485 Port.
233
Troubleshooting
Section 7-1
NT31/NT31C Symptoms
Some of the elements arranged on a normal screen are not displayed.
On an overlapping screen, some of the set elements are not displayed.
Cause
The quantity of read data exceeds the stipulated restriction.
The total of the element coefficients for the displayed screen is greater than 1024.
Since the data is transmitted from the host in screen units, the number of elements on the overlapping screen has exceeded the maximum permissible without being checked by the
Support Tool.
Remedy
Check the maximum number of elements by referring to Display Restrictions in Appendix A of the Refer-
ence Manual. Create the screen data again and then transmit all of the screen data in a batch to the NT31/
NT31C.
Check the maximum number of elements by referring to Display Restrictions in Appendix A of the Refer-
ence Manual. Create the screen data again and then send all the screen data in a batch to the NT31/
NT31C.
The System Menu cannot be called up.
The following System
Menu operations are not possible.
-Establishing the Transmit mode
-Displaying the memory switch setting screens
-Screen data memory check
-Displaying the initialization menu
-Displaying the calendar/ time setting screen
Cannot input numeric values
Display System Menu under Change
System Settings in the System
Installer mode is set to Disabled.
Screen Memory Protect under
Change System Setting in the System Installer mode is set to Disabled.
Screen Memory Protect has been set to Disabled because the PT power supply was turned OFF during deletion of screen data.
In the System Installer mode, set Display System
In the System Installer mode, set Screen Memory
Protect to Enabled (page 153).
Do not turn the PT power OFF during deletion of screen data.
In the System Installer mode, first change the setting for Screen Memory Protect to Enabled, then repeat
the screen data delete operation (pages 153 and
Cannot input numeric values/character strings.
Window screen does not open
Cannot switch screens with touch switches
Touch switch does not work. (Buzzer sounds.)
The display is dim.
The display is too faint.
The upper/lower (max./min.) limit check for numeric value input is in effect.
Bit 5 of the PT status control area
(numeral/character string input) is set to 1 (ON).
The interlock function is set for the input field and the controlling interlock bit is OFF.
Bit 6 of the PT status control area (PT window opening) is set to 1 (ON).
Bit 4 of the PT status control area (PT screen switching) is set to 1 (ON).
The interlock function is set for the touch switch and the controlling interlock bit is OFF.
Insufficient contrast or brightness
Backlight defective, or its life has expired
The contrast is too high.
Check the screen data’s upper/lower (max./min.) limit check setting for numeric value input, and correct it if necessary. Refer to 2-12 Inputting Numeric Values in the Reference Manual for details.
Set bit 5 to 0 (OFF). Refer to 2-2-1 PT Status Control
Area (Host
↔ PT) in the Reference Manual for details.
Inputs are prohibited in input fields when the corresponding interlock bit is OFF. Check the status of the corresponding interlock bit and turn it ON.
Set bit 6 to 0 (OFF). Refer to 2-2-1 PT Status Control
Area (Host
↔ PT) in the Reference Manual for details.
Set bit 4 to 0 (OFF). Refer to 2-2-1 PT Status Control
Area (Host
↔ PT) in the Reference Manual for details.
Touch switches are disabled when the corresponding interlock bit is OFF. Check the status of the corresponding interlock bit and turn it ON.
Increase the contrast/brightness (pages 191 and
Replace the backlight (page 241).
Reduce the contrast (page 191).
234
Responding to Displayed Error Messages
Section 7-2
NT31/NT31C Symptoms
The digits in numeral display come out as
*.
Cause
The number of digits of a numeric value in a numeral memory table exceeds the set number.
Remedy
Confirm the values of the PLC words allocated to the numeral memory table.
Allocate one PLC word to each numeral memory table.
”
**” or ”***” is displayed in the numeral display or numeral input field.
The numeric value in the numeral memory table exceeds the number of display digits.
Check the values of the PLC words allocated to the numeral memory table entry.
Allocate only one word to each numeral memory table entry if the numeral display or numeral input field has 4 digits or less.
7-2 Responding to Displayed Error Messages
When the NT31/NT31C displays an error message, find the corresponding symptoms in the appropriate table below and respond by following the Remedy indicated in the table.
For details of the error messages displayed when using Memory Unit and cor-
rective action to take for them, refer to 3-5 Using a Memory Unit.
7-2-1 Errors Occurring at Start of Operation and Their Remedies
The table below shows the errors that can occur when the power to the NT31/
NT31C is turned ON and when operation starts, and their remedies.
Message
[No Comm. Protocol]
Set the comm. Protocol by MAINTE-
NANCE MODE.
[Screen Data Error]
Screen Data corrupted.
Initialize Screen Memory, and download
Screen Data again.
Cause
No communications protocol has been set.
Communications protocol and screen data type are mismatched
• The power was switched OFF during screen data initialization, checking, or transmission.
• Transmission of screen data was interrupted.
• Illegal data has been written to the screen data memory.
No screen data is registered.
Remedy
Using the memory switches, set the communications method to be used for com-
munications with the host. (6-7 Setting
Conditions for Communications with Host
Initialize the screen data memory by operation at the System Menu, then re-transmit
the screen data. (6-4-1 Clearing Screen
If the problem persists, contact your
OMRON service center.
Transmit screen data from the Support
Tool.
[No Screen Data]
No Screen Data is saved in Screen Memory.
Download Screen Data using by the Support Tool.
Then set the PT to the TRANSMIT
MODE, and download Screen Data again.
[No Direct Connection Info.]
No Direct Connection Information is set in Screen Data.
Set Direct Connecting Information in
Screen Data using by the Support Tool.
Then set the PT to the TRANSMIT
MODE and download Screen Data again.
[Incorrect Screen Data]
Screen Data in Screen Memory do not match with the System Program.
Initialize Screen Memory, and download
Screen Data again.
Allocated words have not been set for the PT status control area and
PT status notify area.
Allocate words for the PT status control area and PT status notify area with the
Support Tool and then transmit the direct connection information to the NT31/
NT31C.
The type of registered screen data does not match that at the NT31/
NT31C.
Initialize the screen data memory, then
transmit the correct screen data. (6-4-1
Clearing Screen Data, page 140)
235
Responding to Displayed Error Messages
Section 7-2
Message
[No Starting Screen]
Specified Starting Screen is not saved.
Fix Screen Data using by the Support
Tool.
Then set the PT to the TRANSMIT
MODE and download Screen Data again.
[Touch Panel is disconnected]
Cause
No data is registered for either the screen number set in the PT status control area or the Initial
Screen set with the Support Tool.
Or the screen number which does not exist are registered.
Remedy
Either specify a screen number for which data is registered at the PT status control area, or set the screen as the Initial
Screen in the System settings under PT
Configuration at the Support Tool.
[Memory Switch Corrupted]
Because Memory Switch setting was last. Initialized Memory Switch setting.
Press Confirm to return to the SYSTEM
MENU.
[Calendar Data Error]
Calendar Data is incorrect.
Set to the MAINTENANCE MODE and set Calendar Data.
[Backup Data Error]
Memory table and History data was initialized by backup failure.
It can be caused by lowered voltage of the battery.
[With memory switch setting screen]
Invalid Comm. Method
The touch panel cable (film cable) inside the NT31/NT31C is disconnected.
The memory switches have been initialized due to discovery of an error in the memory switch settings.
Contact your OMRON service center.
Set the memory switches again using the
System Menu and the System settings under PT Configuration at the Support
Tool. (SECTION 6 System Menu Opera-
If the problem recurs, contact your
OMRON service center.
There is an error in the date/time values due, for example, to low battery voltage.
Initialization has been executed because of an error in the backup data area.
Protocol settings for serial port A and serial port B are mismatched.
Check the battery voltage by checking the color of the RUN LED and with the battery check in the System Menu; if the voltage is low, replace the battery with a new one.
(Checking the Battery Voltage, page 213,
and 7-3-1 Replacing the Battery, page 243)
If the battery voltage is confirmed to be normal, set the calendar clock correctly
from the System Menu. (6-11-2 Display-
ing/Setting the Calendar and Clock, page 195)
Check the battery voltage by checking the color of the RUN LED and with the battery check in the System Menu; if the voltage is low, replace the battery with a new one.
(Checking the Battery Voltage, page 213,
and 7-3-1 Replacing the Battery, page 243) The re-transmit the memory
table data from the Support Tool.
If the voltage is normal and the problem recurs, contact your OMRON service center.
Refer to Possible Combinations of Com-
munications Method Settings on page 160
and set the protocol of serial port A and serial port B so that their settings are matched.
* Set serial port A to “None” when connecting the Support Tool and the host at the same time.
236
Responding to Displayed Error Messages
Section 7-2
7-2-2 Errors Occurring during Operation and Their Remedies
The table below shows the errors that can occur during operation of the NT31/
NT31C and their remedies.
Message
[Address Setting Error]
Addressing Error exists in the
Screen.
Correct address setting by the
Support Tool.
[Memory Table No. Error]
Memory table No. is out of limit.
Correct the table No. by the Support Tool.
[Programming Console Error]
Setting of Programming Console
Function is inadequate. It can be caused by:
• This PLC does not support Programming Console Function.
• Protocol mismatch. Set the PLC to NT Link.
• “PROGRAMMING CONSOLE” is connected to PLC.
[Programming Console Error]
Programming Console Function does not RUN. It can be caused by:
• Connecting cable is faulty.
• “PROGRAMMING CONSOLE” is connected to PLC.
• Protocol mismatch between the
PT and PLC. Set the PLC to NT
Link.
Cause
The host side allocated words and bits set with the Support Tool are incorrect.
Remedy
Set correct words and bits after checking the area used at the host side by referring to PLC Memory
Map in Appendix D of the Reference Manual or the operation manual for the PLC being used.
The memory table number set with the Support Tool is outside the range for the number of memory tables set in the system memory.
The communications settings are incorrect.
Either increase the number of memory tables in the System settings under PT Configuration at the Support Tool, or set the memory table number again within the established range.
The PLC used does not support the Programming Console function.
Set the communications method/communications port as follows when using the Programming
Console function.
• With C-series PLCs:1:1 NT Link
• With CS/CJ-series PLCs:
1:N NT Link (standard or high-speed)
Not all PLCs support the Programming Console function. Check the model of the PLC you are
using. (6-12 Programming Console Function)
A Programming Console is connected.
It is not possible to use a Programming Console and the Programming Console function at the same time. Disconnect the Programming Console.
The connecting cable is defective. Check the cable connection and perform a conductivity test. If there is a fault, replace the cable.
Malfunction due to external noise Carry out grounding work in accordance with the
conditions by referring to 3-1-4 Grounding, page 32.
A Programming Console is connected.
It is not possible to use a Programming Console and the Programming Console function at the same time. Disconnect the Programming Console.
The communications conditions at the PLC have been changed in accordance with the NT31/NT31C
Programming Console function.
Set the communications conditions at the PLC to match the conditions set in the System Menu.
7-2-3 Errors Occurring on Screen Data Initialization and Transmission
The table below shows the errors that can occur when the NT31/NT31C data is initialized, and during data setting and transmission, and their remedies.
Message
[Flash Memory Error]
Flash Memory I/O Error.
If this happens frequently, Flash
Memory may be broken.
Press Reset Switch to restart.
[Calendar Data Error]
Calendar Data is incorrect.
Set to the MAINTENANCE MODE and set Calendar Data.
Cause
There is a hardware fault, or the flash memory (memory for storing screen data) has reached the end of its service life.
Remedy
If the same message is displayed even after clearing the screen data or transmitting screen data several times, contact your OMRON service center.
Hardware fault, or system program error
Set the calendar clock again from the System
Menu. If the problem recurs, delete the program in the System Installer mode, then re-install the
program. (6-5-2 Clearing/Installing the System
If this does not solve the problem, contact your
OMRON service center.
237
Responding to Displayed Error Messages
Section 7-2
Message
[Tool Transmit Error]
∗∗∗∗ Error detected while downloading by the following case:
• faulty connecting cable.
• corrupted data by noise.
Cause Remedy
The connecting cable is defective. Check the cable connection and perform a conductivity test. If there is a fault, replace the cable.
(Appendix F Making the Cable for Connecting a
PLC)
Malfunction due to external noise Carry out grounding work in accordance with the
conditions by referring to 3-1-4 Grounding, page 32.
Malfunction due to external noise Carry out grounding work in accordance with the
conditions by referring to 3-1-4 Grounding, page 32.
[Tool Transmit Error]
Check Sum Error occurs while downloading by the following case:
• corrupted data by noise.
[Tool Transmit Error]
Time-out Error occurs while downloading by the following case:
• faulty connecting cable.
[Tool Transmit Error]
Reception was failed by Buffer
Over Flow Error.
The connecting cable is defective. Check the cable connection and perform a conductivity test. If there is a fault, replace the cable.
The receive buffer has overflowed. Retransmit the data from the Support Tool.
7-2-4 Errors in the System Installer Mode and Their Remedies
This section describes the errors that may occur in the System Installer mode of the NT31/NT31C, and the remedies for these errors.
System Program not exist or incorrect.
Message Cause
• The system program has not been installed.
• The system program has been deleted due to a hardware fault, or because the flash memory
(memory for storing the system program) has reached its life.
Unable to erase System Program. Hardware fault, or flash memory
(memory for storing the system program) has reached its life.
Unable to download System Program.
Remedy
Select Download System Program and download
the system program (6-5-2 Clearing/Installing the
If this does not solve the problem, contact your
OMRON service center.
• A communications error occurred during downloading of the system program.
• Illegal data has been written into the screen data memory.
• Hardware fault, or flash memory
(memory for storing the system program) has reached its life.
If the same message is displayed on repeating selection of Download System Program and attempting to delete the system program several
times, contact your OMRON service center (6-5-2
Clearing/Installing the System Program, page 151)
Select Download System Program and download
the system program again (6-5-2 Clearing/Install-
ing the System Program, page 151)
Also refer to 7-2-3 Errors Occurring on Screen
Data Initialization and Transmission (page 237),
and take the corrective action described for tool transmission errors.
If this does not solve the problem, contact your
OMRON service center.
238
Responding to Displayed Error Messages
Section 7-2
Message Cause
Unable to write System Settings.
Hardware fault, or flash memory
(memory for storing the system program) has reached its life.
Unable to erase Screen Data.
Hardware fault, or flash memory
(memory for storing the system program) has reached its life.
Remedy
If the same message is displayed on repeating writing of system settings several times, contact your OMRON service center.
If writing is normally terminated after the error message was once displayed, the Memory
Switch setting for system program may have been altered. In such a case, check and re-set the setting in the Memory Switch menu of the Maintenance mode.
If the same message is displayed on repeating screen data deletion several times, contact your
OMRON service center.
7-2-5 Communications Errors and Their Remedies
This section describes the errors relating to communications that can occur during operation, and their remedies.
Operation When a
Communications Error
Occurs
Operation When
Communications Errors
Occur
Display of
Communications Errors
When a communications error occurs, the error message is displayed at the
NT31/NT31C, and the buzzer sounds, provided the setting made for Buzzer
Sound in the System Menu is other than OFF. An error message is displayed provided the setting for the Comm. Auto-Return memory switch is not ON
(note that some error messages are displayed even if the setting is ON).
When an error message is displayed, remove the cause of the error and then press the OK touch switch displayed on the screen. The NT31/NT31C will return to the screen that was displayed before the error occurred, and operation will restart.
For communications errors, the name of the port at which the error occurred, the error classification (send or receive error), the details of the error, the probable cause, and the remedy, are displayed as shown below.
Example:
Parity error at serial port A
Receive Errors
The following errors can occur when receiving data.
• Parity error
• Framing error
• Overrun error
• FCS (sum value) error
• Time out error
• Data over flow error
• PLC unit No. error (host link only)
• NAK received (in the case of the host link, the end code is also displayed)
• Undefined command error
239
Responding to Displayed Error Messages
Section 7-2
Send Errors
The following errors can occur when receiving data.
• Time out error
• Data over flow error
Probable Causes and
Remedies
The remedies to take in accordance with the displayed cause are indicated in the table below.
Error Details
Parity Error
Framing Error
Over-run Error
FCS (Check Sum) Error
Time-out Error
Displayed Probable Cause
Communications parameters/ conditions set incorrectly.
The connecting cables are not connected correctly.
Remedy
Check if the settings at the host for parity bit, frame length, communications speed, stop bit length and flow control agree with those at the NT31/NT31C.
Check the communications cable connection and perform a conductivity test. If there is a fault, replace the cable. For details on communications cables,
refer to SECTION 4 Connecting to the Host from the
RS-232C Port, and SECTION 5 Connecting to the
Host from the RS-422A/485 Port.
Carry out grounding work in accordance with the
conditions by referring to 3-1-4 Grounding, page 32.
Carry out grounding work in accordance with the
conditions by referring to 3-1-4 Grounding, page 32.
Noise caused data corruption during communications.
Noise caused data corruption during communications.
The PLC is transmitting incorrect data.
The connecting cables are not connected correctly. (Send/Receive)
Check the operation at the host side.
Check the communications cable connection and perform a conductivity test. If there is a fault, replace the cable. For details on communications cables,
refer to SECTION 4 Connecting to the Host from the
RS-232C Port, and SECTION 5 Connecting to the
Host from the RS-422A/485 Port.
The communications service of the host is stopped. (Send/Receive)
Check that the host is capable of communicating with the NT31/NT31C (confirm that the communications settings of the host and NT31/NT31C match).
Time-out Interval is too short. (Send) Set a longer value for Time-out Interval at the host side.
PLC Unit No. Error
NAK received
Time-out Interval is too short.
(Receive)
The unit # does not match that set on the PLC.
Noise caused data corruption during communications.
——
Set a longer value for Time-out Interval in the System
Menu. (6-9-12 Setting the Time-out Interval, page 186) It may also be possible to solve the prob-
lem by shortening the host cycle time.
Re-set the unit number at the host side to 0.
Carry out grounding work in accordance with the
conditions by referring to 3-1-4 Grounding, page 32.
Check the settings for allocated words and bits.
If noise is a possible factor, distance the cable from sources of noise and insert a noise filter in the power supply line.
If using the equipment in a location subject to a lot of noise, use a cable with a high degree of protection against noise for the transmission route. Also make the cable as short as possible.
Undefined Command Error The host is not supported.
Instruction level 3 is not effective.
Check the PLC model used for the host.
Check that the instruction level setting for the host is level 1, 2, 3.
240
Maintenance of the NT31/NT31C
Section 7-3
Error Details
Data Over Flow Error
Displayed Probable Cause
Communications command from the host is too long. (With memory link)
Command transmission to the host is not possible.
Remedy
Set flow control method in the host.
Increase transmission interval.
Check the communications cable.
Check the control method at the PT and the host.
Increase the communications on speed when it to slow.
7-3 Maintenance of the NT31/NT31C
Carry out maintenance work in order to ensure that the NT31/NT31C is always used in its optimum condition.
WARNING
Do not attempt to take the unit apart and do not touch any internal parts while the power is being supplied.
Doing either of these may result in electrical shock.
Spare PT
Backlight
Notes on Replacing the
Backlight
It is advisable to have a spare NT31/NT31C available to minimize system downtime in the event of an NT31/NT31C failure or if the screen display becomes difficult to read due to deterioration of the display unit.
When the backlight in the display is getting dim and the screen cannot be read easily, replace the backlight. The backlight can be replaced at the rear of the
NT31-ST121 @-EV2/NT31C-ST141@-EV2 while it is mounted in an operation panel. The backlight for the NT31-ST122 @-EV2, NT31-ST123@-EV3, NT31C-
ST142 @-EV2, and NT31C-ST143@-EV3 cannot be replaced by the user.
Contact your OMRON service center when the backlight needs to be replaced.
Replaceable Backlight Model
NT31C-CFL01 (for both NT31-ST121 @-EV2/NT31C-ST141@-EV2)
Guide to Backlight Replacement
Under normal conditions it can be assumed that the backlight will need to be replaced after about 25,000 hours when used at medium brightness (the figure is about 10,000 hours when used at the high brightness setting). However, the life of the backlight does vary, particularly in accordance with the temperature in the environment in which it is used, and it should be replaced when it is getting dim and the screen is getting hard to read. The life expectancy of the backlight for the NT31-ST122 @-EV2, NT31-ST122@-EV3, /NT31C-ST142@-
EV2, and NT31C-ST142 @-EV3 at high brightness is 50,000 hours. The backlight cannot be replaced by the user, however. Contact your OMRON service center when the backlight needs to be replaced.
Pay attention to the following points when replacing the backlight.
• Carry out the replacement work in a location where there is no danger that dust or foreign bodies will enter the PT, and where no water will drip onto it.
Do not touch the printed circuit boards of the NT31-ST121 @-EV2/
NT31C-ST141 @-EV2 with your bare hands.
241
Maintenance of the NT31/NT31C
Replacing the Backlight
Section 7-3
Also, discharge the static electricity from your body before starting the work.
• Do not carry the backlight unit by holding only its cable, or pull on the cable. Do not subject the backlight to excessive force or shock.
• Do not disassemble the product to repair or modify it.
Use the following procedure to replace the backlight.
WARNING
Switch OFF the NT31-ST121j-EV2/NT31C-ST141j-EV2 power before replacing the backlight. Otherwise you could sustain an electric shock.
CAUTION
Do not touch the backlight immediately after switching
OFF the power supply.
Otherwise burn injuries may result due to the high temperatures.
1,2,3...
Replace the backlight by following the procedure given below:
Procedure
1.
Turn the power supply to the NT31-ST121 @-EV2/NT31C-ST141@-EV2
OFF.
2.
Disconnect the terminal block wiring, the communications cable, and the printer cable. If a Memory Unit or Interface Unit is mounted, remove that
Unit also.
3.
Open the cover of the CFL unit housing by following the procedure described below.
a.
Unscrew the screw in the center of the cover.
The screw is designed so that it cannot be removed, but if it does come out for some reason and falls inside the PT, it must be extricated without fail.
b.
Open the cover while pressing the tabs at its left and right inward.
c.
When the cover has opened far enough, remove it.
b b b
4.
Remove the CFL unit by following the procedure described below.
a.
Disengage the connector.
242
Maintenance of the NT31/NT31C
Section 7-3
b.
Sufficiently loosen the screw that secures the CFL unit.
The screw is designed so that it cannot be removed, but if it does come out for some reason and falls inside the PT, it must be extricated without fail.
c.
Shift the CFL unit to the right.
d.
Pull out the CFL unit.
5.
Fit a new CFL unit by following the procedure described below.
a.
Slot the projection on the left end of the CFL unit into the hole in the fixture inside the PT.
b.
Engage the CFL unit with the fixture inside the PT.
Check that the CFL unit is in contact with the left end of the fixture and is parallel with the fixture during this engagement.
c.
Tighten the screw of the CFL unit to secure it.
The tightening torque is 0.2 N
⋅m.
d.
Engage the connector of the CFL unit with the connector of the PT so that the red cable is at the left side.
Insert the connector so that it clicks firmly into place.
Red cable
White cable d b
Fixture inside the
NT31-ST121 @-EV2/NT31C-ST
141 @-EV2
Backlight unit
6.
Fit the cover and secure it with the screw.
7.
Reconnect the wiring, cables, and units disconnected in 2, and tighten the screws.
8.
Before starting normal operation, confirm that the following tests can be executed correctly by using the I/O check in the Maintenance menu. Also perform a communications test with the host.
• Touch switch
• Backlight
9.
On confirming that all the tests in 8 can be executed normally, start operation.
7-3-1 Replacing the Battery
The NT31/NT31C uses a lithium battery to back up the memory contents.
243
Maintenance of the NT31/NT31C
1,2,3...
Reference:
Section 7-3
The battery life is about 5 years if the NT31/NT31C is used in a location where the ambient temperature is 25
°C. If the temperature at the location of use is higher than this, the battery life will be shorter. Change the battery at suitable intervals in accordance with the operating environment of the NT31/NT31C.
It is advisable to keep a spare battery so that the battery can be replaced immediately when replacement becomes necessary.
Battery Type
3G2A9-BAT08 (for both NT31 and NT31C)
Guide to Replacement
Replace the Battery in the following cases.
If the power supply to the PT is left turned OFF after a low battery voltage has been detected, the memory backed up by the battery may be corrupted.
Replace the Battery within 5 minutes of turning OFF the power supply to the
PT.
• When 5 years have passed since the installation of a new battery.
• When the RUN LED is lit in orange (during operation) or in red (when stopped).
• When the message The voltage is lowered. is displayed on switching on the power or resetting the NT31/NT31C.
• When The voltage is lowered is displayed in the Battery check in the battery check menu of the Maintenance mode.
Battery Replacement Method
Replace the battery by following the procedure given below.
To protect the contents of the memory, the battery must be replaced within 5 minutes.
Procedure
1.
Keep the power ON for at least 5 minutes and then turn it OFF.
Unless the power is kept ON for at least 5 minutes, the memory contents cannot be retained for more than 5 minutes without a battery.
2.
Insert a flat blade screwdriver at the top of the battery cover located at the left of the rear face of the NT31/NT31C and pull it toward you.
3.
Remove the battery that is secured under the battery cover, grip the cable, and pull the connector straight out.
244
Inspection and Cleaning
Section 7-4
4.
Insert the connector of the new battery into the connector on the NT31/
NT31C and fit the battery under the battery cover.
When inserting the battery connector, make sure that the projection on it faces to the left, and press it fully home while keeping it straight.
The connector of the new battery must be connected within 5 minutes after disconnecting the old battery’s connector. However, the battery can be replaced while the NT31/NT31C power is on, and in this case there is no time restriction.
5.
Close the battery cover, making sure that the cable is not trapped.
7-4 Inspection and Cleaning
Clean and inspect the NT31/NT31C regularly to ensure that it is always used in its optimum condition.
Cleaning Method
Inspection Method
Note
If the display is dirty the screen is difficult to see. Clean the screen from time to time as follows.
• In daily cleaning, wipe the display with a soft dry cloth. If the soiling is particularly heavy, attempting to remove it by wiping with a dry cloth may damage the front sheet of the PT. In this case, wipe with a damp cloth.
• If the soiling cannot be removed with a dry cloth, wet the cloth with diluted neutral detergent (2%), wring it out well and wipe the display with it.
• If rubber or vinyl products, tape, etc., are left stuck to the display for long periods they will cause staining. If such items are stuck to the display, remove them during cleaning.
Never use volatile solvents such as benzene or thinners, or chemical dusters.
In normal environments, inspect the NT31/NT31C at intervals of between 6 months and a year. In environments that are extremely hot and humid, or very dusty environments, shorten the inspection interval.
Items Required for The Inspection
Prepare the following items before starting the inspection.
• Screwdrivers (Phillips, flat head)
• Tester (or digital voltmeter)
• Industrial alcohol
• 100% cotton cloth
• Hygrometer (required in some cases)
• Thermometer (required in some cases)
• Synchroscope (required in some cases)
• Pen-writing oscilloscope (required in some cases)
245
Inspection and Cleaning
Section 7-4
Points Inspected
Inspect the following points to determine if there is any divergence from the stated criteria. If there is, either improve the surrounding environment so that the values fall within the stated range, or adjust the NT31/NT31C, for example by re-tightening screws.
Point
Inspected
Power supply voltage
Inspection Details Criterion Inspection
Instrument
Tester Fluctuation in power supply terminal voltage
Permissible voltage fluctuation range
20.4 to 26.4 VDC
(24 VDC –15%, +10%)
0 to 50
°C
Ambient environmental conditions
Mounting conditions
Components with limited lives
Ambient temperature (temperature in the operation panel)
Ambient humidity (humidity in the operation panel)
Presence/absence of dust
Looseness of mounting brackets, etc.
35% to 85% RH
Dust must not be settled
To be no looseness
Thermometer
Hygrometer
Visual inspection
Phillips screwdriver
Connector connections of connecting cable
To be fully inserted and locked, with no looseness
Phillips screwdriver
Looseness of screws in external wiring To be no looseness Phillips screwdriver
Conditions of external connecting cables Faults such as incipient disconnection Visual inspection
Brightness of the backlight Visual inspection Must be sufficiently bright.
Backlight life:
Brightness is halved after about
50,000 hours of use at high brightness.
Note
Reference:
1.
Do not disassemble for repairs or modification.
2.
The disposal of the PT (including batteries to be disposed and backlight) may be regulated by national or local authorities. Dispose of them in accordance with the laws and regulations of the relevant country and local authority.
Desire on replacing the NT31/NT31C
When replacing the NT31/NT31C after discovering a fault during inspections, note the following points:
• Be sure to switch the power OFF before starting replacement.
• After replacement, check that the new NT31/NT31C is not subject to the same error.
• If a faulty PT is returned for repairs, write as detailed a description of the fault as possible and send this description together with the PT to the
OMRON address indicated on the back cover of this book.
246
Appendix A
Specifications
General Specifications
Item Specification
NT31-ST123 @-EV3
Rated power supply voltage 24 VDC
Allowable power supply voltage range
20.4 VDC to 26.4 VDC (24 VDC –15% to +10%)
No regulation Allowable power interruption time
Power consumption
Operating ambient temperature
Storage ambient temperature
15 W max.
0 to 50
°C
–20 to 60
°C
NT31C-ST143 @-EV3
Operating ambient humidity 35% to 85% (with no condensation)
Operating environment No corrosive gases
Noise immunity
Vibration resistance
(operating)
*1
Conforms to IEC 61000-4-4, 2 kV (power line).
5 to 9 Hz with 3.5-mm single amplitude and 9 to 150 Hz with 9.8 m/s
2
acceleration
10 times each in X, Y, and Z directions (1 octave/min)
Shock resistance (operating) 147 m/s 2
{15G}
3 times in each of X, Y, and Z directions
Dimensions
Panel cutout dimensions
Weight
195
× 142 × 54 (W × H × D) mm
(With Expansion Unit mounted: 195
× 142 × 74 (W × H × D) mm)
184
× 131 mm
Circle of panel pressure 1.6 to 4.8 mm
1 kg max.
Degree of protection
Grounding
Front panel: Protection equivalent to oil-proof IP65 (NEMA4).
*2
D-type grounding (Ground to 100
Ω or less)
*1
Version 2 (-V2) PTs: 10 to 57 Hz with 0.075-mm amplitude and 57 to 150 Hz with 9.8-m/s
2
acceleration for
30 minutes each in X, Y, and Z directions
*2
Application may not be possible in locations subject to long-term exposure to oil.
247
Specifications
Appendix A
Performance Specifications
Display Specifications
Display panel
Backlight
(white cold cathode tube)
Item Specification
NT31-ST123 @-EV3
Display device NT31: Monochrome STN LCD (with backlight)
NT31C: Color STN LCD (with backlight)
320 dots horizontally
× 240 dots vertically
Number of dots
(resolution)
Size of a standard character
5.76 mm
Effective display area
View angle
118.2 mm horizontally
× 89.4 mm vertically (5.7 inches)
Display color
NT31C-ST143 @-EV3
Up: 20
°
Down: 40
°
Left/right:
±45°
NT31:Black, white (2 colors)
Up: 65
°
Down: 70
°
Left/right:
±55°
NT31C:8 colors (and intermediate colors can be displayed with tiling patterns)
50,000 hours minimum Life expectancy
(until brightness reduced by half)
Contrast adjustment
Life expectancy
(See note.)
Replacement
Brightness adjustment
Adjustable in 100 levels by operation at the touch panel
At high brightness: 50,000 hours minimum
Cannot be replaced by the user.
Adjustable in 3 levels by touch switch operation at the touch panel
Automatic turnoff function
Indicators POWER (green
LED)
RUN
Can be set to turn off in 1 to 255 minutes, or to remain on.
Lit while power is being supplied
Lit in green: Running normally, Memory Unit automatic transmission done
Flash in green: Memory Unit automatic transmission being executed, Memory Unit automatic transmission error
Lit in orange: Low battery voltage (during operation)
Flash in red: Low battery voltage (when NT31/NT31C is stopped)
Note Time taken for brightness to reduce to half at normal temperature and humidity
Version 2 (-V2) PTs: 25,000 hours min. at medium brightness, 10,000 hours min. at high brightness
248
Specifications
Appendix A
Panel Specifications
Item
Touch panel
Specification
Type:
Number of switches:
Maximum number that can be registered on one screen: 192
Cell size: NT31/NT31C 6.3
× 6.3 mm
Input: Pressure-sensitive type
Resistive type
192 (16 horizontally
× 12 vertically)
Operating force: 1 N minimum
Life expectancy: One million operations minimum
External Interface Specifications
Item
Serial communications Serial port A
Parallel interface
Expansion interface
Serial port B
Specification
Conforms to EIA RS-232C
D-SUB 9-pin connector (female)
+5 V (250 mA max.) output at pin No. 6
EIA RS-232C or RS-422A/485 (selectable, by memory switch setting)
D-SUB 25-pin connector (female)
Conforms to Centronics standard, 20-pin half pitch connector
Dedicated connector
Note Check that the current capacity of the equipment to be supplied is within 250 mA before using the +5 V output of pin No. 6. The +5 V output of the PT delivers +5 V
± 5% and 250 mA maximum.
Programming Environment
Item Specification
Programming System Programming support software
Programming Tool Programming support software: NT-series Support Tool for Windows (Ver. 4.
@), by OMRON
Special Features
Item
Buzzer
Touch switch input sound
Maintenance function
Specifications
Three kinds of buzzer sound (continuous, short intermittent, and long intermittent)
ON: On reception of a command from the host, display of a screen with a buzzer setting, or display of an error screen such as for a receive error.
OFF: On reception of a command from the host, or display of a screen with no buzzer setting.
Setting: Set “ON” for “Buzzer Sound” in the memory switch menu, or set “ERROR
ON” for the buzzer to sound only when an error occurs.
The buzzer sounds three times in response to prohibited input.
Touch switches
Input sound: Sounding for 0.2 seconds
Setting: Set “ON” for “Key Press Sound” in the memory switch menu.
- Memory switch setting
- Self-test functions, such as for the memory and external interface
- Setting condition confirmation function
- Communications check function
- Initialization of internal memory data
- Display of display/alarm history data
- Registered data test display function
249
Specifications
Appendix A
Battery backup
Item
Resume function
Screen print function
Specifications
- Backup of numeral/character string memory table data in the NT31/NT31C
- Backup of display/alarm history data
- Backup of calendar and clock setting
Battery life: 5 years (at 25
°C)
When voltage becomes low: RUN LED lights in orange or red
The communications flag to the PLC (BAT LOW) comes ON (1).
Retains the contents of the numeral/character string memory tables (i.e., they are not initialized) when the power is turned ON, when the NT31/NT31C is reset, and when the operation mode is changed.
Setting: Set “ON” for “Resume Function” in the memory switch menu.
Functions: - Prints a hard copy of the screen display
- Prints display/alarm histories
Setting: Set the printing protocol (“Print Controller”) and printing type (“Print
Method”) in the memory switch menu.
“ESC/P”, “Color”: Color printing conforming to ESC/P 24-J83C
“PC-PR201H”, “Color”: Color printing conforming to PC-PR201PL
“ESC/P”, “Tone”: Monochrome printing in 8 grayscale levels, conforming to ESC/P 24-J82
“PC-PR201H”, “Tone”: Monochrome printing in 8 grayscale levels, conforming to PC-PR201PL
“PCL 5”, “Tone”: Monochrome printing in 8 grayscale levels, conforming to PCL 5
However, the NT31 supports monochrome printing only.
- Displays the current time in accordance with the built-in clock Calendar and clock function
- Displayed and set with “Calendar Check” in the “MAINTENANCE MODE” menu
Programming Console function Executes functions equivalent to those of al C200H-PRO27-E Programming Console for CPM1, CPM1A, CPM2A, CPM2C, CQM1 (-EV1 only), CQM1H, C200HX/HG/
HE(-Z)E, and SRM1 (C02-V2 only) PLCs.
Executes functions as a Programming Console for CS/CJ-series PLC.
Device Monitor function
Mathematical function
Transmission functions
System program transmission
Screen data transmission
History data uploading
The Device Monitor function can be used to change the PLC’s operating mode, read/ change words in the PLC’s data areas, and display the PLC’s error log. Compatible
PLCs include the CPM1, CPM1A, CPM2A, CPM2C, CQM1, CQM1H, C200HX/HG/
HE(-Z)E, SRM1, and CS/CJ-series PLCs.
Up to 256 calculation expressions can be registered along with the screen data. The calculation function reads the required data from numeral memory tables or host words, executes the registered calculations, and writes the results.
Arithmetic operators, logic operators, bit operators, and comparative operators can be used.
Downloads the system program from the system installer
Downloads/Upload the system program with a Memory Unit.
- Function for downloading screen data to and uploading screen data from the
Support Tool
- Function for transmitting screen data to and from the Memory Unit.
Function for uploading display/alarm history data from PT.
250
Specifications
Communications Specifications
For a Host Link, RS-232C Type
Item
Communications standard
Communications settings
Connector
Number of Units connected
Transmission distance
Communications protocol
Specification
EIA RS-232C
Start-stop synchronization
Communications speed: 9600, 19200 bps
Data length: 7 bits
Stop bit:
Parity:
2 bits
Even
9-pin D-SUB connector (female) (serial port A)
25-pin D-SUB connector (female) (serial port B)
1:1
Max. 15 m*
C-series SYSMAC WAY (1:N)
* When using an NT-AL001, the specifications are as follows.
• RS-232C cable: 2 m max.
• RS-422A cable: Total length 500 m max.
For a Host Link, RS-422A Type
Item
Communications standard
Communications settings
Connector
Number of Units connected
Transmission distance
Communications protocol
Specification
EIA RS-422A
Start-stop synchronization
Communications speed: 9600, 19200 bps
Data length: 7 bits
Stop bit:
Parity:
2 bits
Even
25-pin D-SUB connector (female) (serial port B)
1:1
Max. 500 m
C-series SYSWAY (1:N)
For an NT Link, 1:1, RS-232C Type
Item
Communications standard
Connector
Number of Units connected
Transmission distance
Specification
EIA RS-232C
9-pin D-SUB connector (female) (serial port A)
25-pin D-SUB connector (female) (serial port B)
1:1
Max. 15 m
*
* When using an NT-AL001, the specifications are as follows.
• RS-232C cable: 2 m max.
• RS-422A cable: Total length 500 m max.
Appendix A
251
Specifications
Appendix A
For an NT Link, 1:1, RS-422A Type
Item
Communications standard
Connector
Number of Units connected
Transmission distance
Specification
EIA RS-422A
25-pin D-SUB connector (female) (serial port B)
1:1
Max. 500 m
For an NT Link, 1:N, RS-232C Type
Item
Communications standard
Connector
Number of Units connected
Transmission distance
Specification
EIA RS-232C
9-pin D-SUB connector (female) (serial port A)
25-pin D-SUB connector (female) (serial port B)
1:1 to 8
Max. 15 m
*
* To connect two or more PTs, NT-AL001 Adapters are required. When using an NT-AL001, the specifications are as follows.
• RS-232C cable: 2 m max.
• RS-422A/485 cable: Total length 500 m max.
For an NT Link, 1:N, RS-422A/485 Type
Item
Communications standard
Connector
Number of Units connected
Transmission distance
Specification
EIA RS-422A/485
25-pin D-SUB connector (female) (serial port B)
1:1 to 8
Max. 500 m
For a High-speed NT Link, 1:N, RS-232C Type
Item
Communications standard
Connector
Number of Units connected
Transmission distance
Specification
EIA RS-232C
9-pin D-SUB connector (female) (serial port A)
25-pin D-SUB connector (female) (serial port B)
1:1 to 8
Max. 15 m
*
* To connect two or more PTs, NT-AL001 Adapters are required. When using an NT-AL001, the specifications are as follows.
• RS-232C cable: 2 m max.
• RS-422A/485 cable: Total length 500 m max.
252
Specifications
For a High-speed NT Link, 1:N, RS-422A/485 Type
Item
Communications standard
Connector
Number of Units connected
Transmission distance
Specification
EIA RS-422A/485
25-pin D-SUB connector (female) (serial port B)
1:1 to 8
Max. 500 m
For a Memory Link, RS-232C Type
Item
Communications standard
Communications settings
Connector
Number of Units connected
Transmission distance
Communications protocol
Specification
EIA RS-232C
Start-stop synchronization
Communications speed: 1200, 2400, 4800, 9600, 19200, 38400 bps
Data length:
Stop bit:
Parity:
7, 8 bits
1, 2 bits
None, even, odd
Flow control:
Response:
None, RS/CS, XON/XOFF
Presence/absence
9-pin D-SUB connector (female) (serial port A)
25-pin D-SUB connector (female) (serial port B)
1:1
Max. 15 m*
Memory link
* When using NT-AL001, specification is as follows:
• RS-232C: Max. 2 m
• RS-422A: Max. total length 500 m
Appendix A
253
Specifications
For a Memory Link, RS-422A Type
Item
Communications standard
Communications settings
Connector
Number of Units connected
Transmission distance
Communications protocol
Specification
EIA RS-422A
Start-stop synchronization
Communications speed: 1200, 2400, 4800, 9600, 19200, 38400 bps
Data length: 7, 8 bits
Stop bit:
Parity:
1, 2 bits
None, even, odd
Flow control:
Response:
None, XON/XOFF
Presence/absence
25-pin D-SUB connector (female) (serial port B)
1:1
Max. 500 m*
Memory link
For a Bar Code Reader
Item
Communications standard
Communications settings
Connector
Number of Units connected
Transmission distance
Communications protocol
Data format
Specification
EIA RS-232C
Start-stop synchronization
Communications speed: 4,800, 9600, 19200 bps
Data length:
Stop bit:
7, 8 bits
1, 2 bits
Parity:
Flow control:
None, even, odd
RS/CS
9-pin D-SUB connector (female) (serial port A)
1:1
Max. 15 m
Non-protocol mode
[STX] Data (0 to 40 bytes) [ETX]
Appendix A
254
Body
183.5 (7.22)
Appendix B
Dimensions
POWER
RUN
Units: mm (inch)
195 (7.68)
142 (5.59)
130.5 (5.14)
5 (0.20)
54 (2.13)
With memory unit installed
(NT-MF261)
74 (2.91)
255
Dimensions
Mounting Dimensions
POWER
RUN
Appendix B
Mounting panel
Mounting fixture
25 (0.98)
145 (5.71)
15.5 (0.61)
5 (0.2)
34 (1.34) (min.)
38 (1.5) (max.)
Units: mm (inch)
206 (8.11)
153 (6.02)
256
Dimensions
Cable Connection Dimensions (with NT-MF261)
96 (3.78)
10.2 (0.47)
PRINTER
PORT B PORT A
91 (3.58)
26.7 (1.05)
5 (0.20)
50 (1.97) 60 (2.36)
Units: mm (inch)
Appendix B
257
Dimensions
Appendix B
258
Appendix C
Using an RS-232C/RS-422A Adapter
This section outlines the external dimensions, procedure for mounting and removal, and specifications of an
RS-232C/RS-422A Adapter (NT-AL001-E). Refer to this information when designing the control panel. For details, refer to the instruction manual supplied with the NT-AL001-E.
Dimensions
53.5
(2.11)
110 (4.33)
4 (0.16)
74.5 (2.93)
100.2 (3.94)
105 (4.13) max.
NT-AL001-E
(30)
(1.18)
45 (1.77)
30 (1.18)
Units: mm (inch)
30 (W)
× 114 (H) × 100.2 (D) mm: with the RS-422A terminal block cover closed
30 (W)
× 114 (H) × 119.5 (D) mm: with the RS-422A terminal block cover open
Methods for Mounting and Removal
The RS-232/RS-422 Adapter (NT-AL001-E) can be mounted on a DIN rail or in an operation panel.
The RS-422A terminal block of the Adapter can be easily removed.
Mounting to a DIN Rail
Latch the top part of the rear face of the Adapter (a in the figure) onto the top edge of the DIN rail, and push the
Adapter in the direction indicated by b in the figure.
Now fit end plates at the right and left of the Adapter to secure it and ensure that it cannot shift laterally.
(a)
(b)
259
Using an RS-232C/RS-422A Adapter
Appendix C
Removal from a DIN Rail
Remove the end plates at right and left of the Adapter and, as shown in the figure below, insert a flat blade screwdriver into the rail stopper at the bottom face of the Adapter and prize it free.
Mounting to an Operation Panel
Drill two mounting screw holes in an operation panel with a thickness of at least 2 mm (0.08 inch) and secure the Adapter with screws.
30
(1.18)
100
(3.94)
110
(4.33)
21
(0.83)
2-M4
Units: mm (inch)
Note In order to ensure a secure and strong mount, mount the Adapter in an operation panel with a thickness of at least 2 mm (0.08 inch).
260
Using an RS-232C/RS-422A Adapter
Appendix C
Specifications
The general specifications and communications specifications of the Adapter are shown below.
General Specifications
Item
Dimensions
Weight
Operating ambient temperature
Operating ambient humidity
Rated power supply voltage
Rated power supply current
Rush current
Insulation resistance
Dielectric strength
Operating environment
Storage ambient temperature
Vibration resistance
Shock resistance
Specification
30 (W)
× 114 (H) × 100.2 (D) mm: with the RS-422A terminal block cover closed
30 (W)
× 114 (H) × 119.5 (D) mm: with the RS-422A terminal block cover open
200 g max.
0 to 55
°C
10% to 90% (with no condensation)
+5 V
± 10% (using pin No. 6 of the RS-232C connector)
150 mA max.
0.8 A max.
20 M
Ω or higher, measured between all RS-422A terminal signal lines collectively and functional ground terminal with at 500 VDC
1500 VAC for 1 minute between all RS-422A terminal signal lines collectively and functional ground terminal
Leakage current: 10 mA max.
No corrosive gases
−20 to +75°C
10 to 57 Hz with 0.075-mm amplitude and 57 to 150 Hz with 9.8-m/s
2
acceleration for
60 minutes each in X, Y, and Z directions
147 m/s
2
, 3 times in each of X, Y, and Z directions
Communications Specifications
RS-232C Interface
Item
Communications speed
Transmission distance
Connector
Max. 115.2k bps
Max. 2 m
9-pin D-SUB connector (female)
Specification
RS-422A/485 Interface
Item
Communications speed
Transmission distance
Connector
Specification
Max. 115.2k bps (depends on the RS-232C communications speed)
Max. 500 m
8-terminal detachable terminal block, M3.0
261
Using an RS-232C/RS-422A Adapter
DIP Switch Settings
The Adapter has 6 digits DIP switch for setting the RS-422A/485 communications conditions.
Before connecting the cable to the Adapter, make the DIP switch settings.
Appendix C
ON
1 2 3 4 5 6
(Factory settings)
NT-AL001-E
[SW1-1] Not used (always ON)
[SW1-2] Setting for built-in terminal resistance
- OFF Terminator not set
- ON Terminator set
[SW1-3, 4] Selection of 2-wire type/4-wire type
SW1-3 SW1-4
OFF
ON
2-wire type (RS-485)
SW1-3 SW1-4
OFF
ON
4-wire type (RS-422A)
[SW1-5, 6] Selection of the RS-422A send mode
SW1-5 SW1-6
OFF
ON
Continual sending
SW1-5 SW1-6
OFF
ON
Complies with CS control of RS-232C
(Data sent at CS high)
OFF
ON
SW1-5 SW1-6
Complies with CS control of RS-232C
(Data sent at CS low)
When using the host link or 1:1 NT Link, set the RS-422A send mode to continual sending (set both SW1-5 and
6 OFF).
When using the 1:N NT Link (standard or high-speed), set the RS-422A send mode to complies with CS control of RS-232C (i.e., one of SW1-5 and SW1-6 must be ON).
Note
(1) Do not set both SW1-5 and SW1-6 ON at the same time. This may damage internal circuits.
(2) The power supply to the device supplying +5 V must be turned OFF before starting wiring work.
(3) Before connecting the RS-232C cable and turning on the power to an RS-232C device such as a
PT (i.e., turning on the power to the Adapter), check that the cable is wired correctly and that the
DIP switch settings are correct. If the power is turned on while there is a wiring fault, the internal circuits of the Adapter or the RS-232C device may be damaged.
(4) When the Adapter is connected to a C200HX/HG/HE (-ZE), CQM1H, CS/CJ-series OMRON PLC as an RS-422A device, set DIP switches SW1-5 and SW1-6 as indicated below.
SW1-5
OFF
SW1-6
ON
5 6
262
Using an RS-232C/RS-422A Adapter
Appendix C
Pin Arrangement
The Adapter has a terminal block for an RS-422A/485 interface connection and a connector for an RS-232C interface connection.
The pin arrangements for the RS-422A/485 terminal block and the RS-232C connector are as follows.
3
1
7
5
RS-422A/485 Terminal Block
Signal name
8
6
4
2
4
3
6
5
8
7
2
1
Terminal block pin
No.
Request to send (
−)
Request to send (+)
Receive data (
−)
Receive data (+)
Send data (
−)
Send data (+)
Signal ground
Functional ground
Abbreviation
CSA
CSB
RDA
RDB
SDA
SDB
SG (GND)
→
→
←
←
→
→
–
–
Signal direction
(Adapter
⇔ RS-422 device)
* The CSB and CSA signals are for specialized applications.
1
2
3
4
5
RS-232C Connector
6
7
8
9
3
4
1
2
Connector pin No.
5
6
7
8
9
Signal name
Not used
Send data
Receive data
Request to send
(shorted to CS internally)
Clear to send
(shorted to RS internally)
+5 V (150 mA) input for Adapter
Data set ready
(shorted to ER internally)
Data terminal ready
(shorted to DR internally)
Signal ground
–
SD
RD
RS
Abbreviation
←
→
←
–
Signal direction
(Adapter
⇔ RS-232C device)
CS
+5 V
DR
ER
→
→
→
←
SG –
* The hood is connected to the functional ground terminal of the RS-422A terminal block.
263
Using an RS-232C/RS-422A Adapter
Appendix C
Block Diagram
A diagram showing the internal blocks of the Adapter is shown below. Refer to this diagram when making cables yourself, or when connecting devices with special interfaces.
RS-232C side
D-SUB 9P CASE
R
RS-422A/485 side
8P terminal block
1
FG
+5 V
6
Fuse
POWER
LED
RS-422A/485 Dr/Rec
DC-DC
Convertor
IS_5 V
L L REG
IS_0 V
SG
9 2
SG
RS-232C
Dr/Rec
RD
3
2
SD
RS
4
CS
DR
5
7
8
ER
R
Photocoupler
R R R
SW1-6
SW1-5
SW1-3
Terminator
R
RS-422A Dr
SW1-2
3
SDB
4
2-wire type/
4-wire type
SDA
SW1-4
5
6
RDB
RDA
7
8
CSB
CSA
264
Appendix D
Transporting and Storing the NT31/NT31C
• When transporting the NT31/NT31C, use the packaging intended for it.
• When storing the NT31/NT31C, observe the following conditions.
Storage ambient temperature: –20 to +60
°C
Storage ambient humidity: 35% to 85%
265
Transporting and Storing the NT31/NT31C
Appendix D
266
Appendix E
Making the Cable
The procedure for making up the cable is described below.
Also refer to this procedure for making a connecting cable for use with RS-422A/485 type connections.
Cable Preparation
The preparation of the cable differs according to whether or not the shielding wire is to be connected to the FG.
Cable with Shielding Wire Connected to FG
1,2,3...
1.
Cut the cable to the required length.
2.
Remove the external vinyl insulation from the cable with a razor blade. Take care not to damage the shielding underneath.
3.
Cut back the shielding wire with scissors.
4.
Use wire strippers to strip the insulation from each wire.
5.
Fold back the shielding wire.
6.
Wrap aluminum foil tape around the folded-back shielding wire.
(1)
(2)
40 (1.57) (RS-232C)
25 (0.98) (RS-422A)
(3)
10
(0.39)
(4)
5
(0.19)
(5)
(6)
Units: mm (inch)
Aluminum foil tape
Cable with Shielding Wire Not Connected to FG
1,2,3...
1.
Cut the cable to the required length.
2.
Remove the external vinyl insulation from the cable with a razor blade. Take care not to damage the shielding underneath.
3.
Cut back the shielding wire with scissors.
4.
Use wire strippers to strip the insulation from each wire.
5.
Wrap vinyl tape over the cut off end of the shielding wire.
267
Making the Cable
(1)
(2)
40 (1.57) (RS-232C)
25 (0.98) (RS-422A)
(3)
(4)
(5)
5
(0.19)
Units: mm (inch)
Soldering
1,2,3...
1.
Slide heat-shrink tube over each wire.
2.
Pre-solder each wire and connector terminal.
3.
Solder each wire to each connector terminal.
Vinyl tape
1 mm
Soldering iron
Heat-shrink tube
(F, 1.5 mm dia., l = 10 mm)
4.
Push the heat shrink tube over the soldered joint and heat the tube to shrink it in place.
Appendix E
Heat-shrink tube
Hood Assembly
Assemble the connector hood as shown below.
End connected to FG
Aluminum foil tape
End not connected to FG
268
Appendix F
Making the Cable for Connecting a PLC
Refer to the following when making a cable for connecting the Support Tool.
Assembly of Connecting Cables
Wiring should be carried out in one of the following ways, depending on the type of RS-232C connector.
25-pin Connector
SD
RD
Personal computer
RS
CS
SG
FG
2
3
4
5
7
1
4
5
2
3
9
SD
RD
RS
Connector for peripheral devices on PT
Shielding wire
CS
SG
Connector hood
Connector hood
Note Please connect the shielding wire to the connector hood at both the personal computer and the peripheral device connector on the PT.
Use the following recommended products when making the connecting cable.
Connector
Cable
Name
Connector hood
Model
XM2D-2501
XM2A-0901
XM2S-2511
XM2S-0911
AWG28
×5P IFVV-SB
CA-MA-VV-SB 5P
×28AWG
Remarks
25-pin, made by OMRON, for personal computer side
9-pin, made by OMRON, for PT side
25-pin, made by OMRON, for personal computer side
9-pin, made by OMRON, for PT side
Multi-core shielded cable, made by Fujikura Ltd.
Multi-core shielded cable, made by Hitachi Cable, Ltd.
9-pin Connector
RD
SD
Personal computer
RS
CS
SG
2
3
7
8
5
2
3
4
5
9
SD
RD
RS
Connector for peripheral devices on PT
CS
SG
Shielding wire
Connector hood
Connector hood
Note Please connect the shielding wire to the connector hood at both the personal computer and the peripheral device connector on the PT.
Use the following recommended products when making the connecting cable.
Connector
Connector hood*
Cable
Name Model
XM2D-0901
XM2A-0901
XM2S-0911
XM2S-0913
AWG28
×5P IFVV-SB
CA-MA-VV-SB 5P
×28AWG
Remarks
9-pin, made by OMRON, for personal computer
9-pin, made by OMRON, for PT
9-pin, mm pitch screw, made by OMRON
9-pin, inch pitch screw, made by OMRON
Multi-core shielded cable, made by Fujikura Ltd.
Multi-core shielded cable, made by Hitachi Cable, Ltd.
* One XM2S-0911 (for PT) and either one XM2S-0911 or -0913 (for your personal computer) are needed.
269
Making the Cable for Connecting a PLC
Appendix F
270
Appendix G
Making the Cable for Connection to a Bar
Code Reader
Refer to the following when making the cable for connection to a bar code reader.
Wiring Method
NT31/NT31C side
Abbr. Pin No.
1
RS-232C interface
SD
RD
RS
CS
+5 V
SG
2
3
4
5
6
7
8
9
Bar code reader side
Abbr.
SD
RD
RS
CS
ER
SG
+5 V
When using the +5 V output of the NT31/NT31C, limit the cable length to within 2 m. If a cable longer than 2 m is used, connect an external power supply to the bar code reader.
Connector and Related Parts
Use the parts which are specified by bar code reader and following recommended products when making the connecting cable.
Name
Connector
Connector hood
Cable
Model
XM2A-0901
XM2S-0911
AWG28
×5P IFVV-SB
CA-MA-VV-SB 5P
×28AWG
Remarks
9-pin type, made by OMRON, PT side
9-pin, made by OMRON
Multi-core shielded cable, made by Fujikura Ltd.
Multi-core shielded cable, made by Hitachi Cable, Ltd.
271
Making the Cable for Connection to a Bar Code Reader
Appendix G
272
Appendix H
Making the Cable for Connection to a Printer
The following product is recommended as the cable for connecting a printer.
NT-CNT121 (made by OMRON, cable length 1.5 m, 20-pin – 36-pin)
Refer to the following when making a cable for connection to a printer.
• Connector pin arrangement and wiring
Connector for a printer on PT side
Abbr.
11 1
0 V
D7
N.C.
20 10
D6
D5
0 V
D4
N.C
D3
0 V
0 V
D2
N.C.
D1
D0
0 V
STROB
N.C.
BUSY
0 V
16
7
17
8
18
9
19
10
20
Pin No.
Connector hood
1
11
2
12
3
13
4
14
5
15
6
Shielding wire
Pin No.
Connector hood
20
9
N.C.
8
7
21
6
N.C.
5
22
23
4
N.C.
3
2
24
1
N.C.
11
19
18
Printer side
36
1
19
273
Making the Cable for Connection to a Printer
Appendix H
274
Appendix I
Relationship between System Program and
Hardware
Here, relationship between system program and hardware is described.
System programs indicated below are installed for the models shown above in the default state. Also, system programs are supplied with the Support Tool as follows.
Model
NT31-ST121 @-E
NT31C-ST131
@
NT31-ST121 @-EV1
NT31C-ST141 @-EV1
NT31-ST121 @-EV2
NT31C-ST141 @-EV2
NT31-ST122
@-EV2
NT31C-ST142 @-EV2
NT31-ST123 @-EV3
NT31C-ST143
@-EV3
History
Conventional product
Version upgrade of the above products
(December 1998)
Version upgrade of the above products
(December 1999)
Version upgrade of the above products
(October 2004)
Version upgrade of the above products
(September 2006)
System Program version
2.0
@ or 2.1@
(supplied with the
NT-ZJCMX1-EV3)
System program
System Program version 1.
(supplied with the
NT-ZJCMX1-EV2)
@ Same for pre-version-1 and version-2 hardware, but there are restrictions to some functions depending on the version of the hardware that is installed.
System Program version
3.0
@ or 3.1@
(supplied with the
NT-ZJCMX1-V4.00)
System Program version 3.1
(supplied with the
NT-ZJCMX1-V4.05)
System Program version
4.0
@
(supplied with the
NT-ZJCMX1-V4.08)
Only for hardware for version-3 (EV3) PTs. Cannot be installed with pre-version-1 or version-2 hardware.
Note NT System Installer version 2.0 or higher is required to install the NT31/31C-V3 system program. (NT
System Installer version 2.0 is provided with NT-series Support Tool version 4.08 or higher.)
These system programs are mutually compatible, therefore, they can be installed and used for the NT31-
ST121
@-E, NT31C-ST141@-E, NT31-ST121@-EV1, NT31C-ST141@-EV1, NT31-ST121@-EV2, NT31-
ST122
@-EV2, NT31C-ST141@-EV2, and NT31C-ST142@-EV2.
However, there will restrictions in some functions depending on the combination. Refer to the following table.
System program version 4.0
@ can be used only with the NT31-ST123@-EV3 or NT31C-ST143@-EV3. This system program cannot be installed on pre-version-2 hardware. System programs earlier than version 3.1
@ cannot be installed in the NT31-ST123
@-EV3 or NT31C-ST143@-EV3.
The following table shows only the relationship between the hardware and system program.
For details of the relationship with the screen data created using the Support Tool, refer to NT-series Support
Tool for Windows (Ver. 4.
@
) Operation Manual (V061-E1-
@).
Limitations of System Program/PT Combinations
The following table shows only the relationship between the hardware and system program.
For details of the relationship with the screen data created using the Support Tool, refer to NT-series Support
Tool for Windows (Ver. 4.
@ ) Operation Manual (V061-E1@).
275
Relationship between System Program and Hardware
Appendix I
Combining a -EV1 Version and Version without a -EV @ Suffix
System program Ver. 1.0
@
System program Ver. 2.0
@ or
Ver. 2.1
@
NT31-ST121 @-E
NT31C-ST141 @-E
The following functions cannot be used
Hardware
• Analogue meter
• High-definition font display
• Installation of system programs using
Memory Unit
• Connection to Mitsubishi PLCs
• Memory link
• Window control from the host
• Multiple display of window screens
• Moving a window
• Refer to the following table for details on new functions supported by the -V2 versions.
NT31-ST121 @-EV1
NT31C-ST141 @-EV1
The following functions cannot be used
• Analogue meter
• High-definition font display
• Connection to Mitsubishi PLCs
• Memory link
• Window control from the host
• Multiple display of window screens
• Moving a window
• Refer to the following table for details on new functions supported by the -V2 versions.
* Installation of system programs using
Memory Unit is possible
The following functions cannot be used
• Installation of system programs using
Memory Unit
• High-definition font display
• Refer to the following table for details on new functions supported by the -V2 versions.
The new functions supported by the -V2 versions cannot be used. Refer to the following table for details.
* The system program’s version can be checked from the System Menu.
Combining a -EV1 Version and -EV2 Version
System program Ver. 2.0
@ or
Ver. 2.1
@
System program Ver. 3.0
@
Hardware
NT31-ST121 @-EV1
NT31C-ST141 @-EV1
NT31-ST121/122
NT31C-ST141/142
@-EV2
@-EV2
The following functions (new functions supported by the -V2) cannot be used:
• Additional data areas accessible in CS/CJ-series PLCs
• The CS/CJ-series high-speed 1:N NT Link
• Interlock function that controls touch switches, numeral inputs, and character string inputs
• Mathematical function
• Device Monitor function
• NT30/620 compatible mode
• Expanded capabilities for label (guide character) displays, including multiple lines of text, ON/OFF switching displays, numeral memory table displays, and character string memory table displays
All of the functions described in the Setup Manual and Reference Manual can be used.
* The system program’s version can be checked from the System Menu.
276
Relationship between System Program and Hardware
Appendix I
Combining a -EV2 Version and Version without a -EV @ Suffix
System program Ver. 1.0
@
System program Ver. 3.0
@
NT31-ST121 @-E
NT31C-ST141 @-E
The following functions cannot be used
Hardware
• Analogue meter
• High-definition font display
• Installation of system programs using
Memory Unit
• Connection to Mitsubishi PLCs
• Memory link
• Window control from the host
• Multiple display of window screens
• Moving a window
• Additional data areas accessible in CS/
CJ-series PLCs
• The CS/CJ-series high-speed 1:N NT
Link
• Interlock function that controls touch switches, numeral inputs, and character string inputs
• Mathematical function
• Device Monitor function
• NT30/620 compatible mode
• Expanded capabilities for label (guide character) displays, including multiple lines of text, ON/OFF switching displays, numeral memory table displays, and character string memory table displays
NT31-ST121/122 @-EV2
NT31C-ST141/142 @-EV2
The following functions cannot be used
• Analogue meter
• High-definition font display
• Connection to Mitsubishi PLCs
• Memory link
• Window control from the host
• Multiple display of window screens
• Moving a window
• Additional data areas accessible in CS/
CJ-series PLCs
• The CS/CJ-series high-speed 1:N NT
Link
• Interlock function that controls touch switches, numeral inputs, and character string inputs
• Mathematical function
• Device Monitor function
• NT30/620 compatible mode
• Expanded capabilities for label (guide character) displays, including multiple lines of text, ON/OFF switching displays, numeral memory table displays, and character string memory table displays
* Installation of system programs using
Memory Unit is possible
The following functions cannot be used
• Installation of system programs using
Memory Unit
• High-definition font display
All of the functions described in the Setup
Manual and Reference Manual can be used.
* The system program’s version can be checked from the System Menu.
277
Relationship between System Program and Hardware
Appendix I
278
Appendix J
Model List
PTs
Model
NT31-ST123-EV3
NT31-ST123B-EV3
NT31C-ST143-EV3
NT31C-ST143B-EV3 STN color display, black
Specification
STN monochrome display, beige
STN monochrome display, black
STN color display, beige
Host Link Units
Model
3G2A6-LK201-EV1
3G2A6-LK202-EV1
Specification
CPU-mounting Unit with RS-232C connector
CPU-mounting Unit with RS-422A connector
C200H-LK201-V1
C200H-LK202-V1
3G2A5-LK201-EV1
C500-LK203
CV500-LK201
Rack-mounting Unit with RS-232C connector for C200H
Rack-mounting Unit with RS-422A connector for C200H
Features a selectable RS-232C/RS-422A connector
Rack-mounting Unit for C500
Features an RS-232C connector and a selectable RS-232C/
RS-422A connector
Rack-mounting Unit for CVM1/CV
Applicable PLC
C-series
C1000H
C2000H
C-series
C200HS
C200HX/HG/HE(-Z)E
C-series
C1000H
C2000H
CVM1/CV-series
CV500
CV1000
CV2000
CVM1
CompoBus/S Master Control Unit
Model
SRM1-C02-V2
Specification
Features an RS-232C port SRM1
Model Name
Communications Unit
Model
CS1W-SCU21(-V1)
CS1W-SCU31-V1
CJ1W-SCU21(-V1)
CJ1W-SCU31-V1
CJ1W-SCU41(-V1)
RS-232C (2 ports)
Rack-mounting Unit
RA-422A/485 (2 ports)
Rack-mounting Unit
RS-232C (2 ports)
RA-422A/485 (2 ports)
RS-232C (1 port)
RA-422A/485 (1 port)
Specification Applicable PLC
CS-series
CS1G/H/D
CJ-series
CJ1G/H/M
279
Model List
Appendix J
CPU Units for Connection via a Host Link
Model
CPM1-10CDR@
CPM1-20CDR@
CPM1A-10CD @-@
CPM1A-20CD @-@
CPM1A-30CD @-@
CPM1A-40CD @-@
CPM2A-30CD @@-@
CPM2A-40CD @@-@
CPM2A-60CD @@-@
CPM2C-10 @@@@@@-@
CPM2C-20 @@@@@@-@
Specification
RS-232C adapter/RS-422A adapter connected to the peripheral port
C-series
CPM1
PLC Type
Features a 9-pin connector for RS-232C connections
C-series
CPM2A
The PLC’s communications connector can be split into an RS-232C port and peripheral port with a CPM2C-CN111 Connecting Cable. (The
CS1W-CN114/118 Connecting Cables convert the connector to a single RS-232C or peripheral port.)
C-series
CPM2C
Features a 9-pin connector for RS-232C connections
C-series
CQM1
CQM1-CPU21-E
CQM1-CPU41-EV1
CQM1-CPU42-EV1
CQM1-CPU43-EV1
CQM1-CPU44-EV1
CQM1-CPU45-EV1
CQM1H-CPU11
CQM1H-CPU21
CQM1H-CPU51
CQM1H-CPU61
C200HS-CPU21-E
C200HS-CPU23-E
C200HS-CPU31-E
C200HS-CPU33-E
C200HE-CPU32-(Z)E
(*)
C200HE-CPU42-(Z)E
C200HG-CPU33-(Z)E
(*)
C200HG-CPU43-(Z)E
C200HG-CPU53-(Z)E
(*)
C200HG-CPU63-(Z)E
C200HX-CPU34-(Z)E
(*)
C200HX-CPU44-(Z)E
C200HX-CPU54-(Z)E
(*)
C200HX-CPU64-(Z)E
C200HX-CPU65-ZE
C200HX-CPU85-ZE
CS1G-CPU42/43/44/45-E(V1)
CS1H-CPU63/64/65/66/67-E(V1)
CS1G-CPU42H/43H/44H/45H
CS1H-CPU63H/64H/65H/66H/67H
CS1D-CPU65H/67H
CJ1G-CPU44/45
CJ1G-CPU42H/43H/44H/45H
CJ1H-CPU65H/66H/67H
CJ1M-CPU11/12/13/21/22/23
CV500-CPU01-EV1
CV1000-CPU01-EV1
CV2000-CPU01-EV1
CVM1-CPU01-EV2
CVM1-CPU11-EV2
CVM1-CPU21-EV2
Features a 9-pin connector for RS-232C connections
(The CQM1H-CPU11-E has only a peripheral port.)
C-series
CQM1H
Features a connector for RS-232C connections
(selectable/9-pin)
C-series
C200HS
Features a connector for RS-232C connections
(selectable/9-pin)
C-series
C200HE(-Z)E
Features a connector for RS-232C connections
(selectable/9-pin)
C-series
C200HG(-Z)E
Features a connector for RS-232C connections
(selectable/9-pin)
C-series
C200HX(-Z)E
Features a connector for RS-232C connections
(9-pin)
CS-series
CS1G/H/D
Features a connector for RS-232C connections
(9-pin)
CJ-series
CJ1G/H/M
Features a connector for RS-232C connections
(selectable/9-pin)
CVM1/CV-series
CV500
CV1000
CV2000
CVM1
* Either of the Communications Boards C200HW-COM02/COM04/COM05/COM06-EV1 is required.
280
Model List
Appendix J
CPU Units for Connection via a 1:1 NT Link
Model
CPM1-10CDR@
CPM1-20CDR@
CPM1A-10CD @-@
CPM1A-20CD @-@
CPM1A-30CD @-@
CPM1A-40CD @-@
CPM2A-30CD @@-@
CPM2A-40CD @@-@
CPM2A-60CD @@-@
CPM2C-10 @@@@@@-@
CPM2C-20 @@@@@@-@
CQM1-CPU41-EV1
CQM1-CPU42-EV1
CQM1-CPU43-EV1
CQM1-CPU44-EV1
CQM1-CPU45-EV1
CQM1H-CPU21
CQM1H-CPU51
CQM1H-CPU61
C200HS-CPU21-E
C200HS-CPU23-E
C200HS-CPU31-E
C200HS-CPU33-E
C200HE-CPU32-(Z)E
(*)
C200HE-CPU42-(Z)E
C200HG-CPU33-(Z)E
(*)
C200HG-CPU43-(Z)E
C200HG-CPU53-(Z)E
(*)
C200HG-CPU63-(Z)E
C200HX-CPU34-(Z)E
(*)
C200HX-CPU44-(Z)E
C200HX-CPU54-(Z)E
(*)
C200HX-CPU64-(Z)E
C200HX-CPU65-ZE
C200HX-CPU85-ZE
CV500-CPU01-EV1
CV1000-CPU01-EV1
CV2000-CPU01-EV1
CVM1-CPU01-EV2
CVM1-CPU11-EV2
CVM1-CPU21-EV2
Specification
RS-232C adapter connected to the peripheral port
(RS-422A adapter cannot be used)
C-series
CPM1
Features a 9-pin connector for RS-232C connections C-series
CPM2A
Connect to the RS-232C port of a CPM2C-CN111 Connecting Cable.
C-series
CPM2C
Features a 9-pin connector for RS-232C connections C-series
CQM1
Features a 9-pin connector for RS-232C connections C-series
CQM1H
Features a connector for RS-232C connections (selectable/9-pin)
C-series
C200HS
PLC Type
Features a connector for RS-232C connections (selectable/9-pin)
C-series
C200HE(-Z)E
Features a connector for RS-232C connections (selectable/9-pin)
C-series
C200HG(-Z)E
Features a connector for RS-232C connections (selectable/9-pin)
C-series
C200HX(-Z)E
Features a connector for RS-232C connections (selectable/9-pin)
CVM1/CV-series
CV500
CV1000
CV2000
CVM1
* Either of the Communications Boards C200HW-COM02/COM04/COM05/COM06-EV1 is required.
281
Model List
Appendix J
CPU Units for Connection via a 1:N NT Link
Model
CQM1H-CPU51
(*1)
CQM1H-CPU61
(*1)
C200HE-CPU32-(Z)E
(*)
C200HE-CPU42-(Z)E
C200HG-CPU34-(Z)E
(*)
C200HG-CPU43-(Z)E
C200HG-CPU53-(Z)E
(*)
C200HG-CPU63-(Z)E
C200HX-CPU34-(Z)E
(*)
C200HX-CPU44-(Z)E
C200HX-CPU54-(Z)E
(*)
C200HX-CPU64-(Z)E
C200HX-CPU65-ZE
C200HX-CPU85-ZE
CS1G-CPU42/43/44/45-E(V1)
CS1H-CPU63/64/65/66/67-E(V1)
CS1G-CPU42H/43H/44H/45H
CS1H-CPU63H/64H/65H/66H/67H
CS1D-CPU65H/67H
CJ1G-CPU44/45
CJ1G-CPU42H/43H/44H/45H
CJ1H-CPU65H/66H/67H
CJ1M-CPU11/12/13/21/22/23
Specification
Features a 9-pin connector for RS-232C connections
Features a connector for RS-232C connections (selectable/9pin)
Features a connector for RS-232C connections (selectable/9pin)
Features a connector for RS-232C connections (selectable/9pin)
Features a connector for RS-232C connections (9-pin)
Features a connector for RS-232C connections (9-pin)
PLC Type
C-series
CQM1H
C-series
C200HE(-Z)E
C-series
C200HG(-Z)E
C-series
C200HX(-Z)E
CS-series
CS1G/H/D
CJ-series
CJ1G/H/M
*1: A CQM1H-SCB41 Serial Communications Board is required.
*2: Either of the Communications Boards C200HW-COM02/COM04/COM05/COM06-EV1 is required.
CPU Units for Connection via a High-speed NT Link (1:N)
Model
CS1G-CPU42/43/44/45-E(V1)
CS1H-CPU63/64/65/66/67-E(V1)
CS1G-CPU42H/43H/44H/45H
CS1H-CPU63H/64H/65H/66H/67H
CS1D-CPU65H/67H
CJ1G-CPU44/45
CJ1G-CPU42H/43H/44H/45H
CJ1H-CPU65H/66H/67H
CJ1M-CPU11/12/13/21/22/23
Specification
Features a connector for RS-232C connections (9-pin)
Features a connector for RS-232C connections (9-pin)
PLC Type
CS-series
CS1G/H/D
CJ-series
CJ1G/H/M
Reference: CS-series PLCs earlier than versions -V1 and H, and Serial Communications Boards and Units and Serial Communications Units with lot number 991220 (12/20/99) and later support the highspeed 1:N NT Link. Boards and Units with earlier lot numbers cannot be used.
282
Model List
Appendix J
RS-232C/RS-422A Adapter
Model
NT-AL001
Specification
RS-232C: 9-pin connector
RS-422A: 8-pin terminal block
RS-232C Adaptor, RS-422A Adaptor
CPM1-CIF01
Model
CPM1-CIF11
Specification
Links the RS-232C port of an NT31/NT31C and the peripheral port of a CPM1,
CPM2A, CPM2C, SRM1 (compatible with host link, and NT Link (1:1))
Links the RS-422A port of an NT31/NT31C and the peripheral port of a CPM1,
CPM2A, CPM2C, SRM1 (compatible with host link)
Related Parts and Equipment for PT
Name
Support Tool*
Options
Model
NT-ZJCAT1-EV4
NT31C-CFL01
NT30-KBA04
NT30-KBA01
NT-MF261
3G2A9-BAT08
Remark
Compatible with PC/AT personal computers
For Windows 95/98/NT4.0/2000/XP (English version)
CD-ROM
Replaceable backlight (common to NT31 and NT31C)
Reflection suppressing protective sheet for NT31/NT31C
Chemical-resistant cover for NT31/NT31C
Memory Unit for NT31/NT31C
Spare battery
* The Support Tool indicated above includes the system installer and the standard system programs (Ver. 3.
@/
Ver. 4.
@) for the NT31, NT31C, NT631, and NT631C. System programs for the earlier NT30/620 PTs are also included.
Cables with Connectors for PT
↔ PLC/NT-AL001-E
Model
XW2Z-200S
XW2Z-500S
XW2Z-200T
XW2Z-500T
XW2Z-200P
XW2Z-500P
XW2Z-200S
XW2Z-500S
XW2Z-070T-1
XW2Z-200T-1
Cable Length
2 m
5 m
2 m
5 m
2 m
5 m
2 m
5 m
0.7 m
2 m
Applicable Units
Host Link Units with a 25-pin connector
Communications Method
Serial port A host link
(RS-232C only)
Host Link Units with a 9-pin connector
Serial port A host link, NT Link
(1:1) (RS-232C only)
Host Link Units with a 25-pin connector
Serial port B host link
(RS-232C only)
Host Link Units with a 9-pin connector
Serial port B host link, NT Link
(1:1) (RS-232C only)
CPU Units with a 9-pin connector (The PLC
(*1)
supplies +5 V for NT-AL001-E connections.)
Host Link, 1:1 NT Link, or 1:N
NT Link using NT-AL001-E
Specification
9-pin
↔ 25-pin
9-pin
↔ 9-pin
25-pin
↔ 25-pin
25-pin
↔ 9-pin
9-pin
↔ 9-pin
* The following PLCs can supply +5 V: C200HX/HG/HE(-Z)E, CQM1H, CPM2A, CPM2C, CS1G/H/D, and
CJ1G/H/M.
283
Model List
Appendix J
Cables with Connectors
CV500-CN228
XW2Z-S001*
XW2Z-S002
Model
2 m
15 cm
2 m
Cable Length Specification
25-pin (male)
↔ 9-pin (male)
25-pin (female)
↔ 14-pin (male)
9-pin (female)
↔ 9-pin (male)
* The XW2Z-S001 is a converting cable. A CV500-CN228 must be purchased separately for connection to a computer.
Connection Cable
Model
AWG28
×5P IFVV-SB
CO-MA-VV-SB 5P
×28AWG
Specification
Multicore cable, manufactured by Fujikura, Ltd.
Multicore cable, manufactured by Hitachi Cable, Ltd.
Applicable Connectors
Connector
Name
Connector hood
Model
XM2A-2501
XM2D-2501
XM2A-0901
XM2D-0901
DB-25P
XM2S-2511
XM2S-2513
Specification
25-pin type (male), made by OMRON
25-pin type (female), made by OMRON (for personal computers)
9-pin type (male), made by OMRON
9-pin type (female), made by OMRON (for personal computers)
25-pin type (male), made by JAE
25-pin type, mm pitch screw, made by OMRON
25-pin type, inch pitch screw, made by OMRON
XM2S-0911 9-pin type, mm pitch screw, made by OMRON
XM2S-0911-E 9-pin type, mm pitch screw, made by OMRON
XM2S-0913
DB-C2-J9
9-pin type, inch pitch screw, made by OMRON
25-pin type, made by JAE
Printer Cable
Model
NT-CNT121
Specification
Printer cable for half pitch (1.5 m), made by OMRON
Cable for Peripheral Port of CS/CJ-series PLC
Model
CS1W-CN118
Specification
Made by OMRON (CS-series peripheral port
↔ D-Sub, 9-pin, female)
Connecting Cable for the CPM2C Communications Connector
Model
CPM2C-CN111
Specification
Made by OMRON (CPM2C communications port
↔ D-Sub, 9-pin, female, C-series peripheral port)
284
Appendix K
Option List
Replaceable Backlight ... NT31C-CFL01 (Used for NT31-ST121 @-EV2,
NT31C-ST141
@-EV2 Only)
This is a backlight (CFL unit) for replacement purposes.
Protective Sheet ... NT30-KBA04 (Used for Both NT31/NT31C)
Stuck to the display to prevent irregular reflection or contamination. The entire sheet is colorless and transparent. The five sheets make a set.
285
Option List
Appendix K
Chemical-resistant Cover ... NT30-KBA01
Covers the front panel and protects it from various chemical agents. The entire sheet is milky white and made of silicone rubber.
The sheet offers protection against the following chemical agents.
Boric acid
Sulfuric acid
Protects against
Nitrogen
Ammonia gas
Carbonic acid gas
Phenol
Glycerin
Ammonia water
Calcium chloride
Developing fluid (hypo)
Acetaldehyde
Lard
Hexane
Does not protect against
Lubricating oil
Benzene
Butane
Carbonic acid
Chlorinated solvents
Napthalene
Soy bean oil
Toluene
For information on chemical agents not listed in the table above, please inquire whether or not protection is offered (if the chemical agent is one against which silicone rubber is recognized as offering protection, please use this product even if the agent is not listed in the “Protects against” column of the table above).
Replacement Battery ... 3G2A9-BAT08
This is a lithium battery used for memory backup.
286
Option List
Appendix K
Memory Unit ... NT-MF261
This is a dedicated unit for reading/writing the screen data and the system programs in an NT31/NT31C. Data is transmitted by DIP switch setting at the Memory Unit.
287
Option List
Appendix K
288
Index
Numerics
1:N connection among RS-422A ports
,
1:N connection among RS-485 ports
,
1:N connection between RS-422A/485 at the NT31/NT31C and RS-232C at the host
,
A
Allowable power supply voltage range
,
Applicable connectors
Automatic transmission (memory unit)
,
B
Backlight
,
Backlight brightness adjustment
,
Battery cover
Before operating
Brightness adjustment
,
C
Cable connection dimensions
,
Cable for peripheral port of CS1-series PLC
,
Cables with connectors
,
Calling the System Installer mode
Calling the System Menu
Cell size (Touch panel)
,
Changing the system settings
,
Checking communications at serial ports
,
Checking communications with a printer
,
Checking communications with the Support Tool
,
Checking interfaces
Checking screen data
,
Checking the backlight
,
Checking the battery voltage
,
Checking the buzzer
,
Checking the LCD (screen display)
,
Checking the PT setting status
,
Checking the RUN LED
Checking touch switches
,
Chemical-resistant cover
,
Cleaning method
Clearing screen data
,
Clearing/installing the system program
,
Comm. A Method
Comm. B Method
,
Comm. B Select
,
Communications Board
Communications Boards
,
Communications by Using Memory Link
,
Communications condition
Communications condition settings for bar code readers
,
Communications condition settings for the host link method
,
Communications errors and their remedies
,
Communications method for communications with the host
,
Communications method settings
Communications methods
,
Communications port
,
Communications specifications
,
Communications type
,
Communications Unit
Comparison between NT31 and NT31C
,
Connecting a bar code reader
,
Connecting a printer
,
Connecting directly between RS-232C ports
,
Connecting to other model PLCs
Connecting to the Support Tool
,
Connection cable
Connection method
Contrast adjustment
,
CPU Unit
,
CPU Units
,
,
,
CPU Units (for connection via a host link)
CPU Units connectable with Host Link Units or Communications Board
D
Device check
Device Monitor function
,
Dimensions
,
Direct connection function
Disabling/enabling System Menu display
Disabling/enabling writing to the screen data memory
Display
,
Display color
289
290
Display device
Display specifications
Displaying and printing the display history record
,
Displaying/setting the calendar and clock
,
Downloading the system program
,
E
Effective display area
Enclosure ratings
Error messages
,
Errors in the system installer mode and their remedies
,
Errors occurring at start of operation
,
Errors occurring during operation
,
Errors occurring on screen data initialization and transmission
,
Errors when using a memory unit
Expansion interface connector
,
Expansion Mode
,
External interface specifications
,
F
Functional ground terminal
G
General specifications
,
GR terminal
Grounding
,
H
Host link
,
Host link method
Host link unit
,
I
I/O settings
In the panel
Initializing alarm history record data
,
Initializing display history record data
,
Initializing the memory switches
,
Initializing the memory tables
,
Initializing the recipe tables
,
Index
Inspection method
Installation environment
,
Installation in the operation panel
,
L
Life expectancy (backlight)
,
Life expectancy (display panel)
,
Life expectancy (touch panel)
,
M
Maintenance Mode
Making the cable
Making the cable for connecting a PLC
Making the cable for connection to a bar code reader
,
Making the cable for connection to a printer
Manual transmission (memory unit)
Manuals
,
Memory initialization
Memory link method
Memory switch
Memory switch setting screen
,
Memory unit
,
Menu tree
Mounting dimensions
N
Noise resistance
NT link
,
NT link (1:1) method
,
NT link (1:N) method
,
high-speed
NT-AL001
Number of dots
Number of switches (touch panel)
O
Operating ambient humidity
,
Operating ambient temperature
Operating environment
Operating force
Operation at startup
,
Operation modes
,
P
Peripheral devices that can be connected
,
Power consumption
,
Power input terminals
,
POWER LED
Power supply connection
precautions
,
Precautions to be observed when transmitting screen data
,
Principal functions of NT31/NT31C
,
Printer cable
,
Printer connector
Programming console function
,
Programming environment
Protective sheet
PT
,
PT Memory
,
R
Rated power supply voltage
,
Recipe function
Recommended printers
,
Relationship between system program and hardware
,
Relationships among modes
,
Replaceable backlight
,
Replacement battery
Replacing the backlight
,
Replacing the battery
Reset switch
,
RS-232C adaptor
,
RS-232C/RS-422A Adapter
RS-422A adaptor
RUN
RUN LED
,
RUN mode
S
Screen data composition and transmission units
Screen data memory check
Selecting menu items
,
Index
Serial Communications Board
Serial Communications Unit
Serial port A
,
Serial port A connector
,
Serial port B
,
Serial port B connector
,
Set
,
Setting "Screen Saver Movement"
,
Setting the "Buzzer Sound"
Setting the "Key Press Sound"
,
Setting the "Print Method"
,
Setting the "Printer Controller"
,
Setting the "Start-up Wait Time"
Setting the automatic reset function
,
Setting the bar code reader input function
Setting the communications type for serial port B
,
Setting the conditions for communications with the memory link method
Setting the display language in the System Installer mode
,
Setting the history display method
,
Setting the host link method
,
Setting the Memory Link Method
,
Setting the NT link (1:1) method
,
Setting the NT link (1:N) method
,
Setting the resume function
Setting the retry count
Setting the screen saver start-up time
Setting the terminal resistance
,
Setting the time-out interval
Shock resistance (operating)
,
Special features
Starting operation
,
Starting the NT31/NT31C
,
Storage ambient temperature
,
Support Tool
,
Switching from the System Menu to the RUN mode
Switching to the RUN mode
,
System configuration
System Installer Mode
,
System Menu
,
T
Terminal resistance setting terminal
Transmit Mode
,
291
292
Transmitting the screen data
,
Transporting and storing the NT31/NT31C
,
U
Usable systems (programming console function)
Using a Memory Unit(NT31/NT31C with V1)
,
Using an RS-232C/RS-422A Adapter
V
Vibration resistance (operating)
View angle
,
W
Warning label
,
Waterproofed
,
Weight
Index
Revision History
A manual revision code appears as a suffix to the catalog number on the front cover of the manual.
Cat. No. V062-E1-04
Revision code
The following table outlines the changes made to the manual during each revision. Page numbers refer to the previous version.
Revision code
1
02
03
04
Date
July 2000
June 2004
Original production
Revised content
January 2003 Page 73: Description on connections added under Connecting to CS1-series CPU
Units.
Page 185: Setting range of 0 to 10 seconds corrected to 1 to 10 seconds under Set-
ting the Time-out Interval and “00” deleted from the sequence in the bottom graphic.
Page 224: Description on error display under Reference changed.
Page 235: One row about the numeral display or numeral input field added to the table.
Page 269: Indications inside connector graphics corrected and a note about the use of shielding wire added to each graphic.
CS1 was changed to CS, and the abbreviation for Programmable Controllers was unified to PLC.
The following changes were also made.
Page 5: Added new models to table.
Page 7: Added information on backlight color. Also added details on battery replacement for new models.
Page 17: Added information on backlight replacement for new models.
Page 23: Corrected and added information on reference manuals to table.
Page 29: Added new models to table.
Page 33: Changed information in table on power supply specifications.
Page 39: Added new models to introduction.
Page 59: Corrected DIP switch setting for SW3–6 from “ON” to “OFF” in graphic.
Page 79: Added CS-series PLC to graphic.
Page 82: Added information on cables for CS-series CPU Units.
Page 90: Removed information on cables with connectors.
Page 91: Added information on cables for CS-series CPU Units.
Page 150: Added information on System Installer mode versions.
Page 193: Added information on backlight brightness.
Page 223: Added and corrected information on CS1G/CS1H PLCs.
Page 224: Corrected “can” to “cannot” in note.
Page 241: Added information on backlight replacement for new models.
Page 242: Added information on backlight replacement for new models, and changed model numbers.
Page 243: Changed “NT31/NT31C” to “PT” in text and changed model numbers in graphic.
Page 246: Changed and added information in table on power supply voltage and backlight brightness.
Pages 247 and 248: Changed specifications tables to add information on new models.
Pages 275, 276, and 277: Added new models
Page 281: Removed information on SJ cables with connectors.
Page 283: Changed PT models that support replaceable backlights.
September 2007 New models added, descriptions added, and errors corrected.
293
294
Revision History
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V062-E1-04
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8 OMRON ELECTRONICS LLC
Printed in the U.S.A.
Specifications subject to change without notice.

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Key features
- Downsized Body
- Construction Best Suited to the FA Environment
- Touch Switch Operation
- Compatibility with Other PTs
- Rapid System Program & Screen Data Changes Possible Using a Memory Unit
- Screen Data Check Function
- Increased Screen Data Capacity
- Large Increase in Maximum Number of Registered Elements
- Binary Data can be Read to/Written from the Host
- Character Display Using High Definition Fonts