Cat. No. W174-E1-07 SYSMAC C-series SYSMAC LINK SYSTEM MANUAL

Cat. No. W174-E1-07 SYSMAC C-series SYSMAC LINK SYSTEM MANUAL
Cat. No. W174-E1-07
SYSMAC C-series SYSMAC LINK
SYSTEM MANUAL
Cat. No. W174-E1-07
SYSMAC
C-series
SYSMAC LINK
C-series SYSMAC LINK
System Manual
Revised September 2003
SLK11
SLK21-V1
RUN
ERC
P/S
ERH
RUN
ERC
ERH
INS
M/S
INS
M/S
SD
RD
SD
RD
TS
LNK
TS
LNK
SLK24
SLK14
RUN
ERC
INS
SD
P/S
ERH
M/S
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LNK
RUN
ERC
INS
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M/S
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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 the product.
DANGER
Indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.
! WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
! 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 “PC” means Programmable Controller and is not used as an abbreviation for anything else.
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, 1990
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.
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TABLE OF CONTENTS
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1
1-2
1-3
1-4
1-5
OMRON Network Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SYSMAC LINK System Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 2
Unit Components and Switch Settings . . . . . . . . . . . . . . .
2-1
2-2
2-3
2-4
2-5
C1000H-SLK11/SLK21-V1 Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C200HW-SLK13/14/23/24 Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1
3-2
3-3
3-4
3-5
Mounting Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Unit Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bus Connector (C200HX/HG/HE/HS/H only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 4
Basic Communications . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1
4-2
4-3
4-4
4-5
4-6
4-7
4-8
SYSMAC LINK System Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Node Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PC Mode at Start-up (C1000H only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Polling Unit Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Network Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Parameter Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Active Node Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 5
Data Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1
5-2
5-3
5-4
5-5
5-6
5-7
5-8
5-9
5-10
Data Link Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Creating Data Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Generation of Data Link Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Generation of Data Link Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Data Link Table Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Restrictions on C200HW-SLK13/14/23/24 Data Link Areas . . . . . . . . . . . . . . . . . . . . . .
Controlling Data Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Data Link Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Data Link Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Data Link Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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6
8
9
10
12
13
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15
17
18
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25
26
33
35
36
37
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41
42
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45
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51
55
58
59
60
63
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TABLE OF CONTENTS
SECTION 6
Data Read/Write Services . . . . . . . . . . . . . . . . . . . . . . . . .
6-1
6-2
6-3
6-4
6-5
6-6
About Data Read/Write Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NETWORK READ/WRITE Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CV-mode Command/Response Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Memory Area Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CV-mode Commands for PCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CV-mode Commands for SYSMAC LINK Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 7
Special Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-1
7-2
Remote Programming and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RAS Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 8
Error Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-1
8-2
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 9
Inspection and Maintenance . . . . . . . . . . . . . . . . . . . . . . .
9-1
9-2
Periodic Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing SYSMAC LINK Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
73
74
74
86
88
90
103
111
112
113
117
118
124
129
130
131
Appendices
A Standard Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C Internal Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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137
139
141
153
157
About this Manual:
This manual describes the installation and operation of C-series SYSMAC LINK Units and includes the
sections described below.
Please read this manual completely and be sure you understand the information provide before attempting to install and operate a C-series SYSMAC LINK System.
Section 5 Introduction introduces the features and operations possible with SYSMAC LINK Units. It also
describes the possible system configurations and compatibility with PCs and other Link Units.
Section 6 Unit Components and Switch Settings presents the names and functions of the SYSMAC
LINK Units’ components and the switch settings.
Section 7 Installation explains how to install SYSMAC LINK Systems.
Section 8 Basic Communications introduces the token bus method of communications used in SYSMAC LINK Systems and explains the basic settings necessary for operation.
Section 9 Data Links describes the operation of data links, procedures required to establish data links,
and methods of monitoring data link operations.
Section 10 Data Read/Write Services describes the data read/write services, which provide data transmission between nodes and distributed control. The data read/write services include the NETWORK
READ (RECV(98)) and NETWORK WRITE (SEND(90)) and instructions and CV-mode commands.
Section 11 Special Services provides information on remote programming and monitoring and RAS
functions.
Section 12 Error Processing provides information to help identify and correct errors that might occur in
the System.
Section 13 Inspection and Maintenance describes periodic maintenance required by the System and
how to replace a SYSMAC LINK Unit.
! 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
PRECAUTIONS
This section provides general precautions for using the Programmable Controller and related devices.
The information contained in this section is important for the safe and reliable application of the PC. You must read
this section and understand the information contained before attempting to set up or operate a PC system.
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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5
Safety Precautions
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 installing FA systems.
• Personnel in charge of designing FA systems.
• Personnel in charge of managing FA systems and facilities.
2
General Precautions
The user must operate the product according to the performance specifications
described in the relevant 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 programming and operating the Unit. Be
sure to read this manual before attempting to use the Unit and keep this manual
close at hand for reference during operation.
! WARNING It is extremely important that a PC and all PC Units 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 a PC system to the above-mentioned
applications.
3
Safety Precautions
! WARNING Do not attempt to take any Unit apart while the power is being supplied. Doing so
may result in electric shock.
! WARNING Do not touch any of the terminals or terminal blocks while the power is being
supplied. Doing so may result in electric shock.
! WARNING Do not attempt to disassemble, repair, or modify any Units. Any attempt to do so
may result in malfunction, fire, or electric shock.
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5
Application Precautions
4
Operating Environment Precautions
! Caution
Do not operate the control system in the following locations:
• Locations subject to direct sunlight.
• Locations subject to temperatures or humidity outside the range specified in
the specifications.
• Locations subject to condensation as the result of severe changes in temperature.
• Locations subject to corrosive or flammable gases.
• Locations subject to dust (especially iron dust) or salts.
• Locations subject to exposure to water, oil, or chemicals.
• Locations subject to shock or vibration.
! Caution
Take appropriate and sufficient countermeasures when installing systems in the
following locations:
• Locations subject to static electricity or other forms of noise.
• Locations subject to strong electromagnetic fields.
• Locations subject to possible exposure to radioactivity.
• Locations close to power supplies.
! Caution
5
The operating environment of the PC system can have a large effect on the longevity and reliability of the system. Improper operating environments can lead to
malfunction, failure, and other unforeseeable problems with the PC system. Be
sure that the operating environment is within the specified conditions at installation and remains within the specified conditions during the life of the system.
Application Precautions
Observe the following precautions when using the PC system.
! WARNING Always heed these precautions. Failure to abide by the following precautions
could lead to serious or possibly fatal injury.
• Always ground the system to 100 Ω or less when installing the Units. Not connecting to a ground of 100 Ω or less may result in electric shock.
• Always turn OFF the power supply to the PC before attempting any of the following. Not turning OFF the power supply may result in malfunction or electric
shock.
• Mounting or dismounting Power Supply Units, I/O Units, CPU Units,
Memory Units, or any other Units.
• Assembling the Units.
• Setting DIP switches or rotary switches.
• Connecting cables or wiring the system.
• Connecting or disconnecting the connectors.
! Caution
Failure to abide by the following precautions could lead to faulty operation of the
PC or the system, or could damage the PC or PC Units. Always heed these precautions.
• Fail-safe measures must be taken by the customer to ensure safety in the
event of incorrect, missing, or abnormal signals caused by broken signal lines,
momentary power interruptions, or other causes.
xiii
5
Application Precautions
• Always use the power supply voltages specified in this manual. An incorrect
voltage may result in malfunction or burning.
• Take appropriate measures to ensure that the specified power with the rated
voltage and frequency is supplied. Be particularly careful in places where the
power supply is unstable. An incorrect power supply may result in malfunction.
• Install external breakers and take other safety measures against short-circuiting in external wiring. Insufficient safety measures against short-circuiting may
result in burning.
• Do not apply voltages to the Input Units in excess of the rated input voltage.
Excess voltages may result in burning.
• Do not apply voltages or connect loads to the Output Units in excess of the
maximum switching capacity. Excess voltage or loads may result in burning.
• Disconnect the functional ground terminal when performing withstand voltage
tests. Not disconnecting the functional ground terminal may result in burning.
• Be sure that all the mounting screws, terminal screws, and cable connector
screws are tightened to the torque specified in this manual. Incorrect tightening torque may result in malfunction.
• Leave the label attached to the Unit when wiring. Removing the label may result in malfunction if foreign matter enters the Unit.
• Remove the label after the completion of wiring to ensure proper heat dissipation. Leaving the label attached may result in malfunction.
• Double-check all wiring and switch settings before turning ON the power supply. Incorrect wiring may result in burning.
• Wire correctly. Incorrect wiring may result in burning.
• Mount Units only after checking terminal blocks and connectors completely.
• Be sure that the terminal blocks, Memory Units, expansion cables, and other
items with locking devices are properly locked into place. Improper locking
may result in malfunction.
• Check the user program for proper execution before actually running it on the
Unit. Not checking the program may result in an unexpected operation.
• Confirm that no adverse effect will occur in the system before attempting any of
the following. Not doing so may result in an unexpected operation.
• Changing the operating mode of the PC.
• Force-setting/force-resetting any bit in memory.
• Changing the present value of any word or any set value in memory.
• Resume operation only after transferring to the new CPU Unit the contents of
the DM Area, HR Area, and other data required for resuming operation. Not
doing so may result in an unexpected operation.
• Do not pull on the cables or bend the cables beyond their natural limit. Doing
either of these may break the cables.
• Do not place objects on top of the cables or other wiring lines. Doing so may
break the cables.
• Use crimp terminals for wiring. Do not connect bare stranded wires directly to
terminals. Connection of bare stranded wires may result in burning.
• When replacing parts, be sure to confirm that the rating of a new part is correct.
Not doing so may result in malfunction or burning.
• Before touching a Unit, be sure to first touch a grounded metallic object in order
to discharge any static built-up. Not doing so may result in malfunction or damage.
xiv
SECTION 1
Introduction
This section introduces the features and operations of the SYSMAC LINK Units. It also describes the possible system configurations and compatibility with PCs and other Link Units.
1-1
1-2
1-3
1-4
1-5
OMRON Network Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SYSMAC LINK System Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3-1 Single-level Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3-2 Multilevel System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4-1 Compatibility with PCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4-2 Compatibility with Other Link Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
3
4
4
5
6
6
6
8
1
Section 1-1
OMRON Network Systems
1-1
OMRON Network Systems
As production processes become more complex and diversified, it is necessary to develop networks that link control components such as PCs to more
powerful host computers in LANs that control entire production processes.
OMRON provides 3 types of network systems for large, medium, and smallscale networks.
SYSMAC NET Link System
The SYSMAC NET Link System is a high-speed, high-capacity LAN. It can be
used as a gateway to a general LAN composed of different kinds of computers or
to an Ethernet to create a large-scale network.
SYSMAC LINK System
The SYSMAC LINK System provides high-speed, high-capacity communications between any nodes (PCs, or IBM-PC/AT or compatible running SSS) in the
network, as well as remote monitoring and programming functions and automatic data transfer via data links.
SYSMAC BUS System
The SYSMAC BUS Remote I/O System is used to link a single PC to remote
racks called Slave Racks and/or components (e.g., I/O Terminals or Programmable Terminals) to form a small, decentralized control network.
Depending on the size and complexity of the production process, these systems can be used alone or in combination as shown below.
Host
computer
PC
Bridge
SYSMAC NET Link System
PC
SYSMAC NET
Link System
PC
SYSMAC LINK System
PC
PC
PC
Host
computer
SYSMAC BUS Remote I/O System
Expansion
I/O Rack
2
Expansion
I/O Rack
I/O Terminal
Expansion
I/O Rack
SYSMAC LINK System Features
1-2
Section 1-2
SYSMAC LINK System Features
SYSMAC LINK Units are equipped with a variety of special features.
High Speed, Reliability, and
Flexibility
The specialized communications LSIs used in all SYSMAC LINK Units deliver
high speed, reliability, and flexibility in an advanced data link system, while optical fiber cable systems provide high-speed communications with unparalleled
immunity to noise.
In the event of an error or failure in the polling unit, another node automatically takes over management of the SYSMAC LINK System without stopping
the entire network. SSS or CVSS running on an IBM-PC/AT or compatible
can monitor and/or program PCs anywhere in the network via the SYSMAC
LINK System.
Distributed Control with
Data Links
The data link function transfers data to and from other nodes automatically,
establishing simple but powerful peer-to-peer links between nodes. Data links
can be generated automatically between 2, 4, 8, or 16 nodes by changing the
value of just one byte in the AR Area of the start-up node. Or the user can use the
flexibility of manually generating data links to eliminate unused link words,
improve data link I/O response time, and to even create several data link groups
in one network.
The data link communications cycle time can be fixed at a constant value, so
even simultaneous remote programming/monitoring and NETWORK READ/
WRITE instruction (RECV(98)/SEND(90)) execution have no effect on the
data link I/O response time.
Active PC Transmission
1, 2, 3...
PCs can communicate actively with other PCs in the network. The four functions
listed below can be performed from the PC’s program using the SEND(90) and
RECV(98) instructions (SEND(192), RECV(193), and CMND(194) in the CVseries).
1. Broadcast transmission
2. Response monitoring time setting (response time-out setting)
3. Transmit retry setting
4. Enabling/disabling response
RAS Functions
SYSMAC LINK Units are equipped with three RAS functions (RAS is an acronym for reliability, availability, and serviceability). The Polling Unit Backup and
Failed Node Bypass (optical systems only) functions prevent the network from
failing when one Unit fails. The Internode Echo Test function aids in communications troubleshooting.
Remote monitoring of the network’s operating status also aids in troubleshooting and quick correction of communications problems.
Improvements on the
C200HS-SLK12/SLK22
(C200HW-SLK13/SLK14/
SLK23/SLK24)
Up to 2,966 words can be linked using the data link function with the C200HWSLK14/SLK24.
The input interrupt response time is 1 ms maximum when the new SYSMAC
LINK Units are mounted to a C200HX, C200HG, or C200HE PC.
3
Section 1-3
System Configuration
1-3
System Configuration
Up to 62 nodes (including all PCs and, in coaxial systems, computers) can be
connected in a SYSMAC LINK Network via SYSMAC LINK Units or Network
Service Boards. One of the Units in the network will function as the polling
unit and the remainder will be polled units. The polling unit manages the System communications during and after configuration.
1-3-1 Single-level Systems
The following diagrams show the general configuration of Single-level SYSMAC LINK Systems connected with coaxial and optical fiber cables. The Systems are considered single-level because each PC has only one SYSMAC
LINK Units mounted to it.
The SSS/CVSS connection is not a required part of the System. It is shown
here because of its usefulness in monitoring and controlling not only the
operation of the SYSMAC LINK System itself, but the general operation of all
the PCs connected in the System.
Coaxial System
The abbreviation NSB indicates a SYSMAC LINK Network Service Board.
CPU Rack
CPU Rack
CPU Rack
SYSMAC LINK Unit
SYSMAC LINK Unit
SYSMAC LINK Unit
CPU Unit
CPU Unit
CPU Unit
Computer
NSB
SSS/
CVSS
Note Terminators must be connected to the Units on the ends of the network.
Optical System
The abbreviation APS indicates an Auxiliary Power Supply Unit.
CPU Rack
CPU Rack
CPU Rack
APS
APS
APS
APS
SYSMAC LINK Unit
SYSMAC LINK Unit
SYSMAC LINK Unit
SYSMAC LINK Unit
CPU Unit
CPU Unit
CPU Unit
CPU Unit
Backup Power Supply
4
CPU Rack
SSS/
CVSS
Section 1-3
System Configuration
1-3-2 Multilevel System
Each PC can have up to two SYSMAC LINK Units mounted. Each SYSMAC
LINK Unit will connect it to a SYSMAC LINK Network, i.e., if a PC has two
SYSMAC LINK Units mounted, it is part of two SYSMAC LINK Networks and
the overall system is considered a Multilevel SYSMAC LINK System. Operating levels, which are described later in this manual, are used to differentiate
between the two Networks to which one PC might belong.
The SSS/CVSS connection is not a required part of the System. It is shown
here because of its usefulness in monitoring and controlling not only the
operation of the SYSMAC LINK System itself, but the general operation of all
the PCs connected in the same Network(s) as the PC to which the SSS/
CVSS is connected.
The abbreviation SLK indicates a SYSMAC LINK Unit.
Subsystem 1
operating level 1
CPU Rack
CPU Rack
CPU Rack
CPU Rack
SYSMAC LINK Unit
SYSMAC LINK Unit
SYSMAC LINK Unit
CPU Unit
CPU Unit
CPU Unit
SSS/
CVSS
SYSMAC LINK Unit
SYSMAC LINK Unit
CPU Unit
Subsystem 3
operating level 1
CPU Rack
CPU Rack
CPU Rack
SYSMAC LINK Unit
Subsystem 2
operating level 0
SSS/
CVSS
SYSMAC LINK Unit
SYSMAC LINK Unit
SYSMAC LINK Unit
CPU Unit
CPU Unit
CPU Unit
Note Terminators must be connected to the Units on the ends of networks connected
by coaxial cable.
5
Section 1-4
Unit Compatibility
1-4
Unit Compatibility
There are some restrictions regarding the models and versions of PCs to
which SYSMAC LINK Units can be mounted. There are also limitations in
using SYSMAC LINK Units together with other Link Units. These limitations
are described in this section.
1-4-1 Compatibility with PCs
The following table shows which CPU Units are compatible with which SYSMAC LINK Units. The SYSMAC LINK Units cannot be used with other CPU
Units or with a C2000H Duplex System (even one set for Simplex operation.)
A Communications Board equipped with a Link Interface (C200HWCOM01/04-EV1) is required to mount a SYSMAC LINK Unit to a C200HX,
C200HG, or C200HE PC.
SYSMAC LINK Unit
Cable
C1000H-SLK21-V1
C1000H-SLK11
Coaxial
Optical fiber
C200HW-SLK23
C200HW-SLK24
Coaxial
C200HW-SLK13
C200HW-SLK14
Optical fiber
Applicable CPU Unit(s)
C1000H-CPU01-EV1 or
C2000H-CPU01-EV1
C200H-CPU11-E
C200H-CPU31-E
C200HS-CPU31-E
C200HS-CPU33-E
C200HE-CPU32-E
C200HE-CPU42-E
C200HG-CPU33-E
C200HG
CPU33 E
C200HG-CPU43-E
C200HG-CPU53-E
C200HG-CPU63-E
C200HX-CPU34-E
C200HX-CPU44-E
C200HX-CPU54-E
C200HX-CPU64-E
1-4-2 Compatibility with Other Link Units
C1000H-SLK11 and C1000H-SLK21-V1
The following combinations of Units can be mounted on a single C1000H or
C2000H PC.
1, 2, 3...
1. Two SYSMAC LINK Units
2. One SYSMAC LINK Unit and one SYSMAC NET Link Unit
3. One SYSMAC LINK Unit and one Rack-mounting Host Link Unit
In addition to the Units in the above combinations you may also mount one
CPU Unit-mounting Host Unit or up to two PC Link Units. Only one PC Link
Unit can be mounted on the C500-BC081 and C500-BC051 Backplanes,
because these Backplanes have only 3 linkable slots.
6
Section 1-4
Unit Compatibility
When combining Units as shown above, use the following models.
Name
SYSMAC LINK Unit
Remarks
Optical type
C1000H-SLK21-V1
Coaxial type
SYSMAC NET Link Unit
C500-SNT31-V4
Rack-mounting Host Link Units
C500-LK103
C500-LK103-P
C500-LK203
Other versions cannot
be used.
Other versions cannot
be used.
CPU Unit-mounting Host Link
Units
3G2A6-LK101-EV1
3G2A6-LK101-PEV1
3G2A6-LK201-EV1
3G2A6-LK202-EV1
C500-LK009-V1
C500-LK009
PC Link Units
! Caution
Model
C1000H-SLK11
---
---
Be sure to set a unique operating level for each system when combining SYSMAC LINK Units, SYSMAC NET Link Units, and/or Host Link Units (SYSMAC
WAY) on the same PC.
C200HW-SLK13, C200HW-SLK14, C200HW-SLK23, and C200HW-SLK24
The following combinations of Units can be mounted on a single PC. Some
power supplies might not have sufficient capacity for all system configurations; be sure to check power supply requirements and capacities carefully.
1, 2, 3...
1. Two SYSMAC LINK Units
2. One SYSMAC LINK Unit and one SYSMAC NET Link Unit
In addition to the Units in the above combinations you may also mount one
CPU Unit-mounting Host Link Unit, up to two rack-mounting Host Link Units,
or up to two PC Link Units. For the C200HX, C200HG, or C200HE PC, one
SYSMAC LINK Unit and one PC Card Unit may be mounted.
When combining Units as shown above, use the following models.
Name
SYSMAC LINK Unit
Model
Remarks
Optical type
SYSMAC NET Link Unit
C200HW-SLK13
C200HW-SLK14
C200HW-SLK23
C200HW-SLK24
C200HS-SNT32
PC Card Unit
C200HW-PCU01
Can be used only with
with the C200HX,
C200HG, or C200HE.
Rack-mounting Host Link Units
C200H-LK101 (-PV1)
C200H-LK201-V1
C200H-LK202-V1
---
CPU Unit-mounting Host Link
Units
3G2A6-LK101-EV1
3G2A6-LK101-PEV1
3G2A6-LK201-EV1
3G2A6-LK202-EV1
C200H-LK401
Cannot be used with
the C200HS, C200HX,
C200HG, or C200HE.
PC Link Units
Coaxial type
---
---
Note Be sure to set a unique operating level for each system when combining SYSMAC LINK Systems, SYSMAC NET Link Systems, and the PC Card Unit on the
same PC.
7
Precautions
1-5
Section 1-5
Precautions
• A Bus Connector is required to mount the C200HW-SLK13, C200HW-SLK14,
C200HW-SLK23, or C200HW-SLK24. Refer to Section 3 Installation for
details.
• Be sure to set different operating levels when mounting a SYSMAC LINK Unit
on the same PC with a SYSMAC NET Link Unit, Host Link Unit (Rack-mounting type), or PC Card Unit. Refer to Section 2 Unit Components and Switch
Settings for details.
• The input interrupt response speed is 1 ms max. for the C200HW-SLK13,
C200HW-SLK14, C200HW-SLK23, or C200HW-SLK24 when mounted to the
C200HX/HG/HE and 10 ms max. when mounted to the C200H or C200HS.
• The C200HW-SLK13, C200HW-SLK14, C200HW-SLK23, or C200HWSLK24 are totally upwardly compatible from the C200HS-SLK12 and
C200HS-SLK22.
• The power supply capacity depends on the CPU Unit that is being used. Refer
to you PC’s Installation Guide for details and do not run over the power supply
capacity.
8
SECTION 2
Unit Components and Switch Settings
The names and functions of the SYSMAC LINK Units’ components and switch settings are described in this section.
2-1
2-2
2-3
2-4
2-5
C1000H-SLK11/SLK21-V1 Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C200HW-SLK13/14/23/24 Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-4-1 C1000H-SLK11/SLK21-V1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-4-2 C200HW-SLK13/14/23/24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-5-1 Node Number Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-5-2 C1000H-SLK11/SLK21-V1 DIP Switch 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-5-3 C200HW-SLK13/14/23/24 DIP Switches 1 and 2 . . . . . . . . . . . . . . . . . . . . . . . .
10
12
13
14
14
14
15
15
16
16
9
Section 2-1
C1000H-SLK11/SLK21-V1 Components
2-1
C1000H-SLK11/SLK21-V1 Components
Front
C1000H-SLK11
C1000H-SLK21-V1
SLK11
SLK21-V1
RUN
ERC
P/S
ERH
INS
M/S
SD
RD
TS
LNK
RUN
ERC
Indicators
Indicate operational status.
ERH
INS
M/S
SD
RD
TS
LNK
Node number switches
Used to set the node number.
Reset switch
Used to reinitialize the SYSMAC
LINK Unit.
DIP switch 1
Remove this cover to gain access to
DIP switch 1. The switch is used to set
a variety of operating parameters.
Power supply connector
Connect to the Auxiliary Power
Supply Unit.
Optical fiber connectors
Used to connect optical fiber cables.
Coaxial connector
Used to connect coaxial cable.
Note Do not push the Reset Switch on SYSMAC LINK Units when the RUN indicator is
not lit (watchdog timer error).
10
Section 2-1
C1000H-SLK11/SLK21-V1 Components
Back
The backs of the C1000H-SLK11 and C1000H-SLK21-V1 are identical.
Mounting screw
Secures Unit to Backplane
Connector
Used to connect the SYSMAC
LINK Unit to the Rack.
Mounting screw
Secures Unit to Backplane
11
Section 2-2
C200HW-SLK13/14/23/24 Components
2-2
C200HW-SLK13/14/23/24 Components
Front
C200HW-SLK13/14
C200HW-SLK23/24
SLK24
SLK14
RUN
ERC
INS
SD
P/S
ERH
M/S
RD
TS
LNK
Indicators
Indicate operational status.
RUN
ERC
INS
SD
ERH
M/S
RD
TS
LNK
Node number switches
Used to set node number.
DIP switch 1
Remove this cover to gain access to
DIP switch 1. The switch is used to set
a variety of operating parameters.
SYSMAC LINK Unit Connector
Used to connect the SYSMAC
LINK Unit to the CPU Unit.
Power supply connector
Connect to the Auxiliary Power
Supply Unit.
Coaxial connector
Used to connect coaxial cable.
Optical fiber connectors
Used to connect optical fiber cables.
Back
The backs of the C200HW-SLK13/14 and C200HW-SLK23/24 are identical.
DIP switch 2
Used to set a variety of
operating parameters.
Connector
Used to connect the
SYSMAC LINK Unit
to the Rack.
12
Section 2-3
Indicators
2-3
Indicators
The status of the SYSMAC LINK Unit is indicated by the indicators shown below.
The Units that use coaxial cables (C1000H-SLK21-V1 and C200HW-SLK23/24)
are not equipped with the P/S indicator.
C1000H-SLK11 C1000H-SLK21-V1
RUN
ERC
P/S
ERH
RUN
ERC
ERH
INS
M/S
INS
M/S
SD
RD
SD
RD
TS
LNK
TS
LNK
Name
RUN
Indicator
Color
Green
P/S
(power supply on,
optical units only)
Green
ERC
(communications
error)
Red
ERH (PC error)
Red
INS (Network
inclusion)
M/S (polling unit)
SD (transfer)
RD (receive)
TS (test)
LNK (data link)
Orange
Orange
Orange
Orange
Orange
Orange
C200HW-SLK13/14
RUN
ERC
INS
SD
P/S
ERH
M/S
RD
C200HW-SLK23/24
TS
LNK
RUN
ERC
INS
SD
ERH
M/S
RD
TS
LNK
Meaning
Condition
Lit
Unit is operating normally.
Not lit
Watchdog timer error has occurred.
Lit
Power is being supplied from the Auxiliary Power Supply Unit.
Not lit
Power is not being supplied from the Auxiliary Power Supply Unit.
Lit
Communications error has occurred, node number setting is incorrect,
or same node number has been set twice.
Not lit
None of the above errors has occurred.
Lit
Not lit
PC CPU, PC model, PC version, PC interface, or EEPROM error has
occurred.
None of the above errors has occurred.
Lit
Unit is part of Network.
Not lit
Unit is not part of Network.
Lit
Unit is polling unit.
Not lit
Unit is not part of Network or is polled unit.
Lit
Unit is sending data.
Not lit
Unit is not sending data.
Lit
Unit is receiving data.
Not lit
Unit is not receiving data
Lit
Test is being executed.
Flashing
Test setting error has occurred.
Not lit
Test is not being executed.
Lit
Unit is part of active data link.
Flashing
Data link error has occurred.
Not lit
Unit is not part of active data link.
13
Section 2-4
Switches
2-4
Switches
2-4-1 C1000H-SLK11/SLK21-V1
DIP switch 1 can be accessed by removing the cover from the front of the
Unit with a standard screwdriver.
NODE NO.
x101
x100
Node number switches
Used to set node number.
RESET
8
7
6
5
SW
DIP switch 1
4
3
2
1
Standard screwdriver
2-4-2 C200HW-SLK13/14/23/24
The node number switches and DIP switch 1 are located on the front of the
Unit, and DIP switch 2 is located on the back.
Front
NODE NO.
x101
x100
Node number switches
Used to set node number.
4
SW
3
2
1
14
DIP switch 1
Section 2-5
Setting Switches
Back
4
3
2
DIP switch 2
1
2-5
Setting Switches
Switch settings determine how the SYSMAC LINK Units will work together in
a Network. Be sure to turn the power off to the PC before setting the
switches. Errors in switch settings, which may not always be detected by the
System, can cause faulty data communications. Set and check all switch settings carefully.
2-5-1 Node Number Switches
Turn off the power to the PC before setting the node number switches. Node
number switches determine the node number. The left switch sets the tens
digit; the right switch sets the ones digit. The node number must be between
01 and 62. Each SYSMAC LINK Unit in a Network must have a unique node
number.
Use a small flat-blade screwdriver to set node number switches, being careful not to damage them.
Note Units in the same network must have unique node numbers.
15
Section 2-5
Setting Switches
2-5-2 C1000H-SLK11/SLK21-V1 DIP Switch 1
Turn off the power to the PC before setting the DIP switch. DIP switch 1 is
used to control the communications test, data link activation, operating level,
PC operating mode when power is applied, network parameter initialization,
and polling/polled unit operation. Refer to the pages indicated in the table for
more details on these settings.
Pin
Function
When ON
Note
Page
When OFF
1
Test activated.
Test stopped.
111
2
Data link activated.
Data link stopped.
58
3
Operating level 0
Operating level 1
38
41
For maintenance use only. Leave this switch set to OFF.
---
5
38
61
PC enters MONITOR mode at PC enters usual mode at
start-up.
start-up.
Not used. Leave this switch set to OFF.
72
Network Parameters initialized.
40
82
Polled unit
Network Parameters not initialized.
Polling unit
---
39
1. Pins 4 and 6 should always be OFF.
2. Pins 7 and 8 are normally OFF.
2-5-3 C200HW-SLK13/14/23/24 DIP Switches 1 and 2
Turn off the power to the PC before setting the DIP switches. DIP switch 1 is
used to control the communications test, data link activation, and operating
level. DIP switch 2 is used to control network parameter initialization and polling/polled unit operation Refer to the pages indicated in the tables for more
details on these settings.
DIP Switch 1
(Front of the Unit)
Pin
Function
When ON
Page
When OFF
1
Test activated.
Test stopped.
111
2
Data link activated.
Data link stopped.
58
3
Operating level 0
Operating level 1
38
4*
For maintenance use only. Leave this switch set to OFF.
---
Note *Pin 4 should always be OFF.
DIP Switch 2
(Back of the Unit)
Pin
Function
When ON
Note
11
Not used. Leave this switch set to OFF.
---
21
Not used. Leave this switch set to OFF.
---
32
Network Parameters initialized.
40
42
Polled unit
Network Parameters not initialized.
Polling unit
1. Pins 1 and 2 should always be OFF.
2. Pins 3 and 4 are normally OFF.
16
Page
When OFF
39
SECTION 3
Installation
This section explains how to install SYSMAC LINK Systems.
3-1
3-2
3-3
3-4
3-5
Mounting Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1-1 C1000H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1-2 C2000H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1-3 C200H/C200HS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1-4 C200HX/C200HG/C200HE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Unit Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2-1 Specifications and Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2-2 Installation and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bus Connector (C200HX/HG/HE/HS/H only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-4-1 Coaxial Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-4-2 Optical Fiber Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18
18
18
18
19
20
20
22
25
26
26
28
33
17
Section 3-1
Mounting Position
3-1
Mounting Position
Note
1. Turn off power to the PC before mounting Units to the Backplane.
2. Tighten Backplane mounting screws firmly.
3-1-1 C1000H
The C1000H-SLK11/SLK21-V1 can be mounted in one of the first three slots
to the left of (i.e., next to) the CPU Unit when using the 3G2A5-BC081/051
Backplane, and in one of the first five slots to the left of the CPU Unit when
using a C500-BC082/052 Backplane.
3G2A5-BC081/051 Backplane:
Mount only in one of the three slots
immediately to the left of the CPU Unit.
CPU Rack
I/O
Control
Unit
CPU
Unit
Power
Supply
Unit
C500-BC082/052 Backplane:
Mount only in one of the five slots
immediately to the left of the CPU Unit.
3-1-2 C2000H
C1000H-SLK11/SLK21-V1 can be mounted in any slot in 3G2C5-BC061
Backplanes.
CPU Rack
I/O
Control
Unit
CPU
Unit
Power
Supply
Unit
3G2C5-BC061
Any slot
3-1-3 C200H/C200HS
The C200HW-SLK13/14/23/24 must be mounted in one of the two slots
immediately to the left of the CPU Unit when using the C200H-BC081-V2 or
C200H-BC051-V2 Backplane.
18
Section 3-1
Mounting Position
If only one Unit is mounted, it must in the slot immediately to the left of the CPU
Unit. If two SYSMAC LINK Units, or one together with a SYSMAC NET Link Unit,
are mounted, the SYSMAC LINK Unit can be mounted in either of the two slots
immediately to the left of the CPU Unit.
CPU Rack
CPU Unit
C200H-BC081-V2/BC051-V2 Backplane
The two slots to left of CPU Unit if two Units are mounted.
CPU Rack
CPU Unit
C200H-BC081-V2/BC051-V2 Backplane
The slot to left of CPU Unit if only one Unit is mounted.
Note Refer to 1-4-2 Compatibility with other Link Units for details on using a C200HWSLK13/14/23/24 SYSMAC LINK Unit with a SYSMAC NET Link Unit.
3-1-4 C200HX/C200HG/C200HE
The C200HW-SLK13/14/23/24 must be mounted in one of the two slots
immediately to the left of the CPU Unit when using a C200HWBC101/081/051/031 Backplane. If only one Unit is mounted, it must be in the
slot immediately to the left of the CPU Unit. If two SYSMAC LINK Units, or
one together with a SYSMAC NET Link Unit, are mounted, the SYSMAC
LINK Unit can be mounted in either of the two slots immediately to the left of
the CPU Unit. If one SYSMAC LINK Unit and one PC Card Unit are mounted,
the SYSMAC LINK Unit must be in the slot immediately to the left of the CPU
Unit.
CPU Rack
CPU Rack
CPU Unit
C200HW-BC101/081/051/031 Backplane
Two slots to left of CPU Unit if two Units are mounted.
CPU Unit
C200HW-BC101/081/051/031 Backplane
Slot to left of CPU Unit if only one Unit is mounted.
CPU Rack
CPU Unit
PC Card Unit
C200HW-BC101/081/051/031 Backplane
Two slots to left of CPU Unit if the SYSMAC LINK
Unit and PC Card Unit are mounted.
SYSMAC LINK Unit
Note
1. Refer to 1-4-2 Compatibility with other Link Units for details on using a
C200HW-SLK13/14/23/24 SYSMAC LINK Unit with a SYSMAC NET Link
Unit.
19
Section 3-2
Power Supply Unit Connection
2. A Communications Board equipped with a Link Interface (C200HWCOM01/04-EV1) is required when mounting a SYSMAC LINK Unit to a
C200HX, C200HG, or C200HE PC.
3-2
Power Supply Unit Connection
SYSMAC LINK Units that are connected with optical fiber cable (the
C1000H-SLK11 and C200HW-SLK13/14) can be connected to an Auxiliary
Power Supply Unit to provide backup power. By connecting the Unit to an
Auxiliary Power Supply Unit, the entire system won’t go down if the Unit fails
for some reason.
The table below shows which Power Supply Units can be connected to the
SYSMAC LINK Units.
SYSMAC LINK Unit
Corresponding Power Supply
C1000H-SLK11
C1000H-APS01
C200HW-SLK13/14
C200H-APS03
3-2-1 Specifications and Components
Specifications
The following specifications apply to both the C1000H-APS01 and
C200H-APS03.
Item
20
Specification
Power supply voltage
100 to 120 VAC or 200 to 240 VAC (switchable)
Acceptable voltage range
85 to 132 VAC or 170 to 264 VAC
Power consumption
40 VA max.
Weight
0.5 kg max.
Other
Conform to C-series specifications
Section 3-2
Power Supply Unit Connection
Auxiliary Power Supply Unit Components
C1000H-APS01
The diagram below shows the components of the C1000H-APS01 Auxiliary
Power Supply Unit and their functions.
APS01
P/S
Indicators
Indicate operational status.
Power supply connector 1
Supplies backup power to a SYSMAC LINK Unit.
P/S1
Power supply connector 2
Supplies backup power to a SYSMAC LINK Unit.
P/S2
L1
100240
VAC
Power supply terminals
Backup AC power is supplied through these terminals.
L2/N
LG
Ground
Connect LG to a separate 100 W max. ground to
prevent electrical shock.
Connect GR to a separate 100 W max. ground to
reduce noise and prevent electrical shock.
GR
C200H-APS03
The diagram below shows the components of the C200H-APS03 Auxiliary
Power Supply Unit and their functions.
APS03
P/S
CN
(OUT)
L1
100240
VAC
L2/N
Indicators
Indicate operational status.
Power supply connector
Supplies backup power to a SYSMAC LINK Unit.
Power supply terminals
Backup AC power is supplied through these terminals.
LG
GR
Ground
Connect LG to a separate 100 W max. ground to
prevent electrical shock.
Connect GR to a separate 100 W max. ground to
reduce noise and prevent electrical shock.
21
Section 3-2
Power Supply Unit Connection
Power Cables
The following table shows which power cables are included with the
C1000H-APS01 and C200H-APS03 as accessories.
Unit
Power cable
Notes
C1000H-APS01
C1000H-CN111
1 cable provided
C200H-APS03
C200H-CN111
1 cable provided (for 1 SYSMAC LINK Unit)
When connecting 2 SYSMAC LINK Units to an Auxiliary Power Supply Unit,
order the following cables separately as required.
Unit
Power cable
C1000H-APS01
C1000H-CN111
Same as the one provided with the Unit.
Notes
C200H-APS03
C200H-CN211
For connection to 2 SYSMAC LINK Units
Indicators
Name
Indicator
Color Condition
P/S
Green
Meaning
Lit
Power is being supplied to the SYSMAC LINK Unit.
Not lit
Power is not being supplied to the SYSMAC LINK
Unit.
Precautions
The backup function will be disabled when the PC’s power is off, so connect
the power supply terminals to an AC power supply other than the one connected to the PC.
Always supply power to the Power Supply Unit before supplying power to the
PC.
Note
1. Turn off the power supply to the PC before mounting the Power Supply Unit.
2. Firmly tighten the Backplane mounting screws for the Power Supply Unit.
3. Leave the protective sticker in place on the Unit when wiring to prevent clippings and other foreign matter from entering the Unit during the wiring procedure.
4. Remove the protective sticker after completion of wiring before turning on
power to the Unit. If Unit is operated with the protective sticker in place, the
Unit may overheat, causing operational errors.
5. Do not pull on the cable. Pulling on the cable could break wires inside.
6. Do not bend the cable past the minimum radius. Bending the cable too far
could break wires inside.
3-2-2 Installation and Wiring
C1000H/C2000H
Mounting Position
The C1000H-APS01 can be mounted in any slot, but the power cables are relatively short, so the Power Supply Unit cannot be more than 2 slots from the SYSMAC LINK Unit. One Power Supply Unit can supply backup power to two SYSMAC LINK Units, as shown below.
APS SLK SLK
22
CPU PS
Section 3-2
Power Supply Unit Connection
In the following diagram, a Power Supply Unit is connected to just one SYSMAC LINK Unit.
APS SLK
Wiring
CPU PS
The Power Supply Unit and SYSMAC LINK Unit are connected by a power supply cable, as shown below. The cable can be plugged into either power supply
connector on the Power Supply Unit.
Power cable
Power Supply Unit or
SYSMAC LINK Unit
power supply connector
The tab should be on the left.
Note
1. Turn off the power supply to the PC before mounting the Power Supply Unit.
2. Firmly tighten the Backplane mounting screws for the Power Supply Unit.
3. Leave the protective sticker in place on the Unit when wiring to prevent clippings and other foreign matter from entering the Unit during the wiring procedure.
4. Remove the protective sticker after completion of wiring before turning on
power to the Unit. If Unit is operated with the protective sticker in place, the
Unit may overheat, causing operational errors.
5. Do not pull on the cable. Pulling on the cable could break wires inside.
6. Do not bend the cable past the minimum radius. Bending the cable too far
could break wires inside.
C200H/C200HS
Mounting Position
The C200H-APS03 can be mounted in any slot, but the power cable included
with the Unit will only reach to the next slot, so the Power Supply Unit must be
mounted next to the SYSMAC LINK Unit.
In the following diagram, a Power Supply Unit is connected to just one SYSMAC LINK Unit.
APS SLK
CPU
23
Section 3-2
Power Supply Unit Connection
One Power Supply Unit can supply backup power to two SYSMAC LINK
Units. In this case an optional power cable that will supply the two SYSMAC
LINK Units must be purchased separately. One branch of the cable will reach
two slots from the Power Supply Unit, as shown below.
APS SLK SLK
CPU
Note Connect the C200H-APS01 Power Supply Unit (for single-unit power supply) or
the C200H-APS02 Power Supply Unit (for double-unit power supply) to the
SYSMAC NET Link Unit. The C200H-APS03 Power Supply Unit cannot be connected to the SYSMAC NET Link Unit.
If the SYSMAC Link Unit is used in combination with the SYSMAC NET Link
Unit, be sure to mount them and the Power Supply Unit in the correct positions.
Wiring
The Power Supply Unit and SYSMAC LINK Unit are connected by a power supply cable, as shown below. The tab on the connector should be on the right.
Power cable
The tab should be on the right.
Note
1. Turn off the power supply to the PC before mounting the Power Supply Unit.
2. Leave the protective sticker in place on the Unit when wiring to prevent clippings and other foreign matter from entering the Unit during the wiring procedure.
3. Remove the protective sticker after completion of wiring before turning on
power to the Unit. If Unit is operated with the protective sticker in place, the
Unit may overheat, causing operational errors.
4. Do not pull on the cable. Pulling on the cable could break wires inside.
5. Do not bend the cable past the minimum radius. Bending the cable too far
could break wires inside.
24
Section 3-3
Bus Connector (C200HX/HG/HE/HS/H only)
3-3
Bus Connector (C200HX/HG/HE/HS/H only)
A Bus Connector is required to connect a C200HW-SLK13/14/23/24 SYSMAC LINK Unit to the CPU Unit of a C200HX, C200HG, C200HE, C200HS,
or C200H PC.
There are three models of Bus Connector available. One is used when a
single SYSMAC LINK Unit is being mounted on the CPU Rack, one is used
when two Units are being mounted (either two SYSMAC LINK Units or a
SYSMAC LINK Unit and a SYSMAC NET Link Unit), and one is used when a
single SYSMAC LINK Unit and a single PC Card Unit are mounted (C200HX/
HG/HE CPU Units only).
CPU Unit
C200HX,,
C200HG
C200HG,
C200HE
C200H,,
C200HS
Communications
Board
C200HW-COM01 or
C200HW COM04 EV1
C200HW-COM04-EV1
---
Bus Bar Connection
Bus Connector
Function
C200HW-CE001 Used when mounting just one SYSMAC LINK Unit.
C200HW-CE002 Used when mounting two SYSMAC LINK Units or a SYSMAC
LINK Unit and a SYSMAC NET Link Unit.
C200HW-CE012 Used when mounting one SYSMAC LINK Unit and one PC
Card Unit.
C200H-CE001
Used when mounting just one SYSMAC LINK Unit.
C200H-CE002
Used when mounting two SYSMAC LINK Units or a SYSMAC
LINK Unit and a SYSMAC NET Link Unit.
Connect the Bus Connector as described below after turning off the PC.
1, 2, 3...
1. When using the C200HS or C200H PC, align the Bus Connector so it fits into
the connectors on both the SYSMAC LINK Unit and PC CPU Unit, and then
press it into the connectors.
or When using the C200HX, C200HG, or C200HE PC, mount the Communica-
tions Board on the CPU Unit, align the Bus Connector so it fits into the connectors on both the SYSMAC LINK Unit and Communications Board, and
then press it into the connectors.
2. Tighten the two screws on the Bus Connector to secure it.
C200HS, C200H
C200HX, C200HG, C200HE
Communications Board
C200HW-COM01 or
C200HW-COM04-EV1
Note
1. Turn off the power supply to the PC before connecting the Bus Connector.
2. Firmly tighten the mounting screws of the Bus Connector.
25
Section 3-4
Cable Connection
3-4
Cable Connection
SYSMAC LINK Units can be connected with either coaxial cable or optical
fiber cable. This section describes the procedures required to connect both
types of cable.
3-4-1 Coaxial Cable
The diagram below shows a SYSMAC LINK System connected by coaxial
cables.
F Adapter
Terminator
Connector
Terminator
5C-2V
coaxial cable
Required Components
1, 2, 3...
1. Coaxial cable and connectors:
Use 5C-2V coaxial cable designed for indoor use. Install connectors on
each end of the cable. Cables must be continuous lengths only. No intervening cable connectors or breaks are permitted.
2. F Adapters (C1000H-CE001):
Coaxial cables are connected to the SYSMAC LINK Units via F Adapters.
One F Adapter is included as an accessory with SYSMAC LINK Units that
use coaxial cables (C1000H-SLK21-V1 and C200HW-SLK23/24). An
Attachment Stirrup (C200H-TL001) is also included with the C200HWSLK23/24.
3. Terminator (C1000H-TER01):
Two Terminators (sold separately) are required for the F Adapters at the
ends of the network.
Connection Procedure
The connection procedure is described briefly below.
Note
1, 2, 3...
26
1. Turn off the power supply to the PC before connecting the cables.
2. Leave the protective sticker in place on the Unit when wiring to prevent wire
clippings and other foreign matter from entering the Unit during the wiring
procedure.
3. Remove the protective sticker after completion of wiring before turning on
power to the Unit. If Unit is operated with the protective sticker in place, the
Unit may overheat, causing operational errors.
1. Install connectors on each end of the cables.
2. Connect the Terminators to the F Adapters at the ends of the network (i.e., to
the unused connectors at the last Unit on each end). Hold the connector in
one hand and press the resistor into it firmly with the other.
Section 3-4
Cable Connection
3. Connect the F Adaptors to the SYSMAC LINK Units by firmly pushing the
adapter onto the coax connector on the Unit and turning the locking ring to
the right until it locks. Start at one end of the network and connect the F
Adapters to the other end in order.
Turn locking ring to
the right.
With the C200H, C200HS, C200HX, C200HG, or C200HE, secure the
F Adapter to the coaxial connector with an attachment stirrup.
C200H-TL001
Attachment Stirrup
4. Place an insulation cover over the F Adapter.
Insulation cover
27
Section 3-4
Cable Connection
5. Any bends in the coaxial cable must be 45 mm in radius or greater (six times
the outer diameter of the cable). When laying the cable, make wider bends
of 110 mm in radius or greater (15 times the outer diameter of the cable).
Radius
> 45 mm
Note
1. Check to be sure that the coaxial cable if firmly locked into place after connecting it.
2. Do not pull on the cable. Pulling on the cable could break wires inside.
3. Do not bend the cable past the minimum radius. Bending the cable too far
could break wires inside.
4. Do not place heavy objects on the cable or connectors. Heavy objects could
break wires inside.
3-4-2 Optical Fiber Cable
Required Components
1, 2, 3...
1. Optical fiber cable:
Use Hard Plastic-clad Optical Fiber Cable (H-PCF). Refer to Appendix A
Standard Models for details on available lengths and colors.
2. Optical Connectors:
There are two types of Optical Connector available, as shown below. Use
the cable splicing connector to splice cable.
Function
Model number
Number required
Node-cable connection
S3200-COCF2071
2 for each node
Cable splicing
S3200-COIAT2000
(inline adapter)
1 for each break in the cable
Note Using an inline adapter to splice the cable will reduce the maximum
transmission distance because of loss at the junction. Refer to your
hard plastic-clad optical fiber cable (H-PCF) installation manual for
details.
3. Optical Connector Assembly Tools:
These tools are required to attach the Optical Fiber Cable to the Optical
Connector.
Optical Connector Assembly Tool Set
S3200-CAK1062
Applicable Connectors
S3200-COCF2071 (C1000H)
S3200-COCF2571 (C200HS)
Note Optical fiber cable cutters are included.
4. Optical Fiber Tester (Optical Power Tester):
Tester Set
S3200-CAT2700
28
Head Unit
S3200-CAT2702
Applicable Connectors
S3200-COCF2071 (C1000H)
S3200-COCF2571 (C200HS)
Section 3-4
Cable Connection
5. Master Fiber:
Master Fiber
S3200-CAT2001H
Applicable Connectors
S3200-COCF2071 (C1000H)
S3200-COCF2571 (C200HS)
Discontinued Products:
Name
Optical
p
C
Connector
Model number
Recommended
replacement
models
Manufacturer
S3200-COCF2011 S3200-COCF2071 OMRON
S3200-COCF2511 S3200-COCF2571 OMRON
Optical Connector Assembly
Follow the instructions provided with the S3200-CAK1062 Optical Connector
Assembly Tool Set.
Connection Procedure
The connection procedure is described briefly below. Begin with the highest
node in the network and connect the lower nodes in order.
Note
1. Turn off the power supply to the PC before connecting the cables.
2. Leave the protective sticker in place on the Unit when wiring to prevent clippings and other foreign matter from entering the Unit during the wiring procedure.
3. Remove the protective sticker after completion of wiring before turning on
power to the Unit. If Unit is operated with the protective sticker in place, the
Unit may overheat, causing operational errors.
4. Do not pull on the cable. Pulling on the cable could break fibers inside.
5. Do not bend the cable past the minimum radius. Bending the cable too far
could break fibers inside.
6. Do not place heavy objects on the cable or connectors. Heavy objects could
break fibers inside.
C1000H-SLK11
1, 2, 3...
1. Insert the terminals into the mounting bracket so that the tension wire holes
are vertical, and then secure the terminals by tightening the nuts on the
other side.
2. Insert the bushings into the mounting bracket and secure the bracket to the
Unit with the Philips head screws provided.
3. If the cable has tension wires, thread them through the terminals and tighten
the terminal screws to secure them.
4. Place the cables behind the clamp and secure them by tightening the Philips
head screw provided. Secure both cables at once.
29
Section 3-4
Cable Connection
5. Align the cable’s Optical Connectors so that the tabs are on the left and
insert them into the Unit’s Optical Connectors.
Nut
Terminal
Mounting
bracket
(1)
(5)
(1)
(2)
(3)
Tension
wires
(4)
Note Tighten the screws on the mounting bracket firmly.
C200HW-SLK13/14
1, 2, 3...
1. Insert the terminals into the mounting bracket so that the tension wire holes
are vertical, and then secure the terminals by tightening the nuts on the
other side.
2. Secure the bracket to the Unit with the Philips head screws provided.
3. If the cable has tension wires, thread them through the terminals.
4. Insert the cable’s Optical Connectors into the Unit’s Optical Connectors.
5. Place the cables behind the clamp and secure them by tightening the Philips
head screw provided. Secure both cables at once.
30
Section 3-4
Cable Connection
6. If the cable has tension wires, tighten the terminal screws to secure them.
Nut
Terminal
Mounting
bracket
(1)
(2)
(1)
(3)
(4)
(6)
Tension
wires
(5)
Note Tighten the screws on the mounting bracket firmly.
Precautions
1, 2, 3...
1. Use only the Hard Plastic-clad Optical Fiber Cable (H-PCF) listed in Appendix A Standard Models.
2. Any bends in the cable must be 10 cm in radius or greater.
3. Always hold the connector firmly when inserting or removing the cables.
31
Section 3-4
Cable Connection
4. As shown in the diagram below, begin connecting the highest node of the
network and connect the lower nodes in order. Cover the upper connector
(SL1) of the highest node, and connect SL2 to SL1 of the next node. Continue connecting this way until the lowest node is reached and cover SL2 of
the lowest node.
Higher nodes
Lower nodes
Optical
Connector
Cover
Optical
Connector
Cover
C1000H-SLK11
C1000H-SLK11
C200HW-SLK13/14
5. Allow sufficient clearance between the bottom of the Unit and the cable to
prevent the cable from being bent too much, as shown in the diagram below.
(The clearances are in millimeters.)
C1000H-SLK11
60
55
200
32
C200HW-SLK13/14
200
Section 3-5
Dimensions
3-5
Dimensions
Dimensions for the SYSMAC LINK Units are shown below. All dimensions
are in millimeters.
C1000H-SLK11
34.5
93
SLK11
RUN
ERC
P/S
ERH
INS
M/S
SD
RD
TS
LNK
250
105
C200HW-SLK13/14
34.5
125
SLK14
130
P/S
ERH
M/S TS
RD
LNK
C200HS–SLK14
RUN
ERC
INS
SD
33
Section 3-5
Dimensions
C1000H-SLK21-V1
34.5
93
SLK21-V1
RUN
ERC
ERH
INS
M/S
SD
RD
TS
LNK
250
109
C200HW-SLK23/24
34.5
125
C200H-TL001 F Adapter
Attachment Stirrup
SLK24
130
ERH
M/S TS
LNK
RD
54
C200HS–SLK24
RUN
ERC
INS
SD
8.25
34
SECTION 4
Basic Communications
A description of the token bus method of communications used in SYSMAC LINK Systems is described briefly in this section. The basic settings necessary for operation are also explained.
4-1
4-2
4-3
4-4
4-5
4-6
4-7
4-8
SYSMAC LINK System Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Node Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PC Mode at Start-up (C1000H only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Polling Unit Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Network Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Parameter Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Active Node Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
36
37
38
38
39
40
41
42
35
Section 4-1
SYSMAC LINK System Communications
4-1
SYSMAC LINK System Communications
SYSMAC LINK Units communicate through the SYSMAC LINK Network, a
token bus LAN. This section describes the token bus communications used in
the SYSMAC LINK Network.
Token Bus Communications
In token bus communications, individual nodes are connected to a main trunk
line as a common bus line, as shown in the figure below.
To avoid having two nodes attempt to transmit simultaneously, only one node
has the right to transmit at a time. The Unit with that right is called the polling unit. The polling unit is identified by a token that is passed in sequence
from the node to node, beginning with the node with the lowest node number.
If the token is passed to a node that doesn’t have data to transmit, the token
is immediately passed to the node with the next higher node number. The
node with the highest node number passes the token back to the node with
the lowest node number. In this way, each node in the network has its turn to
transmit data without interfering with other nodes.
Lowest node number
Node
Node
Node
Node
Connecting cable
(trunk line)
Node
Node
Node
Highest node number
Polling Unit
In a SYSMAC LINK Network there is one node, called the polling unit, that controls communications in the network. Normally, the Unit with the lowest node
number is the polling unit. If the polling unit happens to fail, the node with the next
higher node number becomes the polling unit, preventing the whole network
from failing.
Start-up Node
The node that starts the data link in a SYSMAC LINK Network is called the
start-up node. The data link operates using the settings in the memory area
of the PC at the start-up node. With automatic allocation of link words the
settings in AR 07 are used, and with manual allocation the common link
parameters in the start-up node are used.
The start-up node controls not only data link table generation, but is used to
start and stop data link operation. Be sure to designate a Unit or Units participating in the data link as the start-up node(s) to enable this control.
Communications Cycle
The token in a SYSMAC LINK Network is first sent out from the polling unit. The
token is then is passed in sequence from the node to node by node number until
it is finally returned to the polling unit. One complete circuit around the network is
known as a token cycle.
At the end of each token cycle, the polling unit polls all of the nodes in the
network to check whether any nodes have been added to or removed from
the network. The updated information on the network is transmitted to all
nodes. This polling and updating process is known as the polling cycle.
36
Section 4-2
Setting Node Numbers
When the control cycle is completed, the polling unit once again sends out
the token, beginning the next token cycle. Together the token cycle and control cycle make up the communications cycle, and the time required for the
communications cycle is known as the communications cycle time.
Communications cycle
Token cycle
Polling cycle
Communications cycle
Token cycle
Polling cycle
Network Parameters
The communications cycle time is one of the network parameters. The other network parameters are the number of polled units, maximum number of frames,
and the maximum node number. These parameters are transmitted from the
polling unit to the other nodes in the network. Refer to 4-6 Setting Network
Parameters for details on the network parameters.
Refresh Cycle Time
Data is refreshed between the SYSMAC LINK Unit and the PC’s CPU Unit while
a data link is active. The PC passes the data for the local words to the SYSMAC
LINK Unit and receives the words written by other nodes from the SYSMAC
LINK Unit. The time required to refresh the data is called the refresh cycle time.
The refresh cycle time can be monitored from Peripheral Devices.
4-2
Setting Node Numbers
In token bus communications used in the SYSMAC LINK Network, the node
numbers make a logical ring that the token is passed around. The logical ring
of node numbers takes the place of the actual physical ring used in some
other networks. Consequently, proper setting of the node numbers is essential to network operations.
Node number switches determine the node number. The left switch sets the
tens digit; the right switch sets the ones digit. The node number must be in
the range from 01 through 62. Each SYSMAC LINK Unit in a Network must
have a unique node number.
Note Always turn the PC’s power off before setting a Unit’s node number.
Use a small flat-blade screwdriver to set node number switches, being careful not to damage them. The following example shows the node number set
to 50.
NODE No.
x101
Note
x100
1. If the node number set on the Unit is outside of the allowed range (01 to 62),
a communications error will occur and the red ERC indicator will light on the
Unit’s display.
2. Each Unit in the network must have a unique node number, so be sure not to
use the same number in more than one Unit.
37
Section 4-4
PC Mode at Start-up (C1000H only)
3. The token is passed from node to node according to node numbers, so the
more dispersed the node numbers are, the greater distance the token has to
travel. In optical fiber systems, the communications cycle time depends on
the distance the token has to travel, so set node numbers according to the
nodes positions in the network if possible.
4. When a node number has been changed, activate that node last.
4-3
Operating Levels
Up to 2 Link Units can be mounted on a C-series PC at one time. Link Units
include SYSMAC LINK Units, SYSMAC NET Link Units, Host Link Units, and
PC Card Unit (C200HX/HG/HE CPU Units only). For details refer to 1-4-2
Compatibility with other Link Units.
When two Link Units are mounted on one PC, it is necessary to differentiate
between the two Networks to which the PC belongs. Units in one Network
are assigned to operating level 0; Units in the other Network are assigned to
operating level 1. These operating levels only distinguish between the two
Networks and do not imply that one Network is operating above or below the
other in any functional sense.
Setting Operating Levels
The operating level of all SYSMAC LINK Units (C1000H-SLK11/SLK21-V1 and
C200HW-SLK13/14/23/24) is set with pin 3 of DIP switch 1, as shown below.
DIP switch 1, pin 3
Note
4-4
Operating level
ON (1)
Operating level 0
OFF (0)
Operating level 1
1. Always turn the PC’s power off before setting a Unit’s operating level.
2. When mounting a SYSMAC LINK Unit on the same PC with a SYSMAC NET
Link Unit, Host Link Unit (Rack-mounting type), or PC Card Unit, be sure
they are set to different operating levels.
PC Mode at Start-up (C1000H only)
This setting is available on the C1000H-SLK11 and C1000H-SLK21-V1 only.
The PC mode at start-up can be set to MONITOR if it is not being controlled
from the Programming Console of other Peripheral Device that might be connected to the PC.
Setting PC Mode at Start-up
The PC mode at start-up is set with pin 5 of DIP switch 1, as shown in the table
below.
Pin 5
ON (1)
Other unit connected
None1
---
PC mode at
start-up
MONITOR
Programming Console
RUN
RUN
MONITOR
MONITOR
PROGRAM
PROGRAM
Host Link Unit
DIP switch 1, pin 8: ON (1)
See note 2.
(CPU Unit-mounting type)
DIP switch 1, pin 8: OFF (0)
MONITOR
Host Link Unit
DIP switch 1, pin 8: ON (1)
MONITOR3
(Backplane-mounting type) DIP switch 1, pin 8: OFF (0)
MONITOR3
SYSMAC NET Link Unit
DIP switch 3, pin 1: ON (1)
MONITOR3
DIP switch 3, pin 1: OFF (0)
MONITOR3
DIP switch 1, pin 5: ON (1)
MONITOR3
DIP switch 1, pin 5: OFF (0)
MONITOR3
---
MONITOR
SYSMAC LINK Unit
Other Peripheral
38
Setting on other unit
Devices4
Section 4-5
Polling Unit Setting
Pin 5
OFF (0)
Other unit connected
None1
---
PC mode at
start-up
RUN
Programming Console
RUN
RUN
MONITOR
MONITOR
PROGRAM
PROGRAM
Host Link Unit
DIP switch 1, pin 8: ON (1)
RUN
(CPU Unit-mounting type)
DIP switch 1, pin 8: OFF (0)
PROGRAM
Host Link Unit
DIP switch 1, pin 8: ON (1)
MONITOR3
(Backplane-mounting type) DIP switch 1, pin 8: OFF (0)
RUN3
SYSMAC NET Link Unit
DIP switch 3, pin 1: ON (1)
MONITOR3
DIP switch 3, pin 1: OFF (0)
RUN3
DIP switch 1, pin 5: ON (1)
MONITOR3
DIP switch 1, pin 5: OFF (0)
RUN3
---
PROGRAM
SYSMAC LINK Unit
Other Peripheral Devices4
Note
Setting on other unit
1. None of the Link Units or Peripheral Devices listed in the table.
2. Never make this combination of pin settings.
3. When a Programming Console is also connected, the PC’s start-up mode is
always controlled by the mode setting on the Programming Console.
4. Other Peripheral Devices include Floppy Disk Interface Units, Printer Interface Units, PROM Writers, and Peripheral Interface Units.
5. Always turn the PC’s power off before setting the PC mode at start-up.
4-5
Polling Unit Setting
The polling unit setting is used only when replacing a SYSMAC LINK Unit
and is otherwise left set to OFF. Be sure to set the data link tables if data
links are being set manually and to change any network parameters in Unit
before performing the following procedure.
1, 2, 3...
1. When replacing a SYSMAC LINK Unit, set the Unit as the polling unit and
then initialize the Unit by pressing the reset switch or turning on the power.
2. Check the status of the Unit’s indicators to see whether the Unit has entered
the network normally. The INS indicator should be ON, and the ERC and
ERH indicators should be OFF.
3. If the indicators show that the Unit has entered the network normally, set the
Unit as a polled Unit and initialize it again.
4. Check the status of the Unit’s indicators to see whether the Unit has entered
the network normally. The INS indicator should be ON, and the ERC and
ERH indicators should be OFF.
If the indicators show that the Unit has entered the network normally again, it
is ready to be used in the Network. If the indicators do not show the expected
status, check the all switch and software settings and repeat the procedure.
C1000H Units
The polling unit is set with DIP switch 1, pin 8 on the C1000H-SLK11 and
C1000H-SLK21-V1 Units, as shown below.
DIP switch 1, pin 8
Polling unit operation
ON (1)
Polled unit
OFF (0)
Polling unit
39
Section 4-6
Setting Network Parameters
C200HW Units
The polling unit is set with DIP switch 2, pin 4 on the C200HW-SLK13/14/23/24
Units, as shown below.
DIP switch 2, pin 4
Polling unit operation
ON (1)
Polled unit
OFF (0)
Polling unit
Note Always turn the PC’s power off before changing the polling unit setting
4-6
Setting Network Parameters
The operation of the SYSMAC LINK Network is determined by the network
parameters. Network parameters are set with Peripheral Devices such as the
SSS/CVSS, and are automatically backed up in EEPROM within the SYSMAC
LINK Unit.
The following table shows the network parameters, their default values, and the
range within which the parameters can be set by the user. Default values and
setting ranges are in decimal.
Network parameter
Default value
Setting range
Communications cycle time
Automatic
5 to 255
Maximum node number
62
2 to 62
Number of polled units per
communications cycle
Maximum number of frames per
communications cycle
4
1 to 62
10
5 to 255
Communications Cycle Time This parameter sets a timer that fixes the length of the communications cycle to
the specified time. The timer operates only when the data link is in operation. Set
the communications cycle time when setting the data link table’s common link
parameters.
When the timer is in operation, the communications cycle time is fixed at the specified value, independent of the number of events that occur. Refer to 5-10 Data
Link Characteristics for the formula needed to calculate the communications
cycle time when the data link is set for automatic generation.
Maximum Node Number
This parameter sets the maximum node number that a node can have and still
be a part of the network. Nodes with node numbers greater than the maximum
node number will not be polled, and therefore cannot participate in network communications. This eliminates unnecessary polling of units with node numbers
above the maximum, and thus reduces the time required for communications.
Note Set the maximum node number above the highest node number set on the SYSMAC LINK Units currently connected.
Number of Polling Units
This parameter determines how many nodes will be polled by the polling unit
during a polling cycle. Setting this to a high value increases the communications
cycle time, but reduces the time required to recognize that nodes have been
removed from or added to the network.
Maximum Number of Frames This parameter determines how many event transmissions can take place during a token cycle when the data link is operating. With the default value of 10
frames, up to 4 event transmissions can be issued.
Event transmissions include instructions such as SEND(90) or RECV(98)
instructions, as well as processes such as remote monitoring and remote programming from a SSS or CVSS.
Setting this parameter to a high value increases the communications cycle time,
while setting it to a low value will cause errors because of restrictions on event
transmissions when the data link is operating. Increase the number of frames by
3 for each additional event transmission when 5 or more event transmissions will
occur while the data link is operating.
40
Section 4-7
Network Parameter Initialization
Setting Network Parameters
Network parameters are set with Peripheral Devices such as the SSS/CVSS.
For details, refer to the Peripheral Device’s Operation Manual. Set the network
parameters after installing the network.
The network parameters must be set after the network has been assembled,
and while data links are halted. Network parameters cannot be set while the
data link is operating. Once the network parameters has been set, any new
Units must be connected only while the System is in operation. A special procedure is required if new Units are connected while System operation is
halted. Refer to Section 9 Inspection and Maintenance for this procedure.
Note If a Unit is initialized while the network parameters are being set, the network
parameters will not be backed up properly and an EEPROM error might occur.
Conflicting Network
Parameter
When the network parameters set from the Peripheral Device differ from existing
network parameters, a flag is set in the AR area of the PC in the way shown
below. The same AR bits are used in all PCs.
Word: AR 24
15 14 13 12 11 10
9
8
Undefined
–
–
7
6
5
4
3
2
1
0
Undefined
Operating Level 1 Conflicting Network Parameter Flag
Operating Level 0 Conflicting Network Parameter Flag
ON (1): Conflicting network parameters
OFF (0): Normal network parameters
4-7
Network Parameter Initialization
The SYSMAC LINK Unit can be set so that the network parameters are initialized when the PC is turned on or the Unit is reset. Network parameters are otherwise not usually initialized unless an error has developed in the network parameters.
C1000H-SLK11/SLK21-V1
If pin 7 of DIP switch 1 is ON, the network parameters will be initialized when the
PC is turned on or the C1000H-SLK11/SLK21-V1 is reset.
DIP switch 1, pin 7
C200HW-SLK13/14/23/24
Network parameter initialization
ON (1)
Network parameters will be initialized.
OFF (0)
Network parameters will be not be initialized.
If pin 3 of DIP switch 2 is ON, the network parameters will be initialized when the
PC is turned on or the C200HW-SLK13/14/23/24 is reset.
DIP switch 2, pin 3
Network parameter initialization
ON (1)
Network parameters will be initialized.
OFF (0)
Network parameters will be not be initialized.
41
Section 4-8
Active Node Flags
4-8
Active Node Flags
The AR Area of the PC contains a record of the nodes that are active in the
SYSMAC LINK System at the current time. Words AR 08 to AR 11 contain
information on operating level 0, and words AR 12 to AR 15 contain information on operating level 1. These flags are refreshed every cycle while the
SYSMAC LINK System is operating.
The body of the following table shows the node number assigned to each bit.
If the bit is ON, the node is currently active.
Level 0
Level 1
Bit (body of table shows node numbers)
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
AR 08
AR 12
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
AR 09
AR 13
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
AR 10
AR 14
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
AR 11
AR 15
49
50
51
52
53
54
55
56
57
58
59
60
61
62
*
**
*Communication Controller Error Flag
**EEPROM Error Flag
Note If one of the operating levels is not being used, the words allocated to it for active
node flags are available for use in the program as work words.
42
SECTION 5
Data Links
The operation of data links, procedures required to establish data links, and methods of monitoring data link operations are
explained in this section.
5-1
5-2
5-3
5-4
5-5
Data Link Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Creating Data Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Generation of Data Link Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Generation of Data Link Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Data Link Table Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-5-1 Identical Data Link Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-5-2 Different Data Link Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-5-3 Multiple Data Link Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-6 Restrictions on C200HW-SLK13/14/23/24 Data Link Areas . . . . . . . . . . . . . . . . . . . . . . .
5-6-1 Combining the C200HW-SLK13/23 with other SYSMAC LINK Units . . . . . . .
5-6-2 Installing C200HW-SLK14/24 SYSMAC LINK Units on C200H PCs . . . . . . . .
5-7 Controlling Data Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-7-1 DIP Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-7-2 DATA LINK START/HALT Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-8 Data Link Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-9 Data Link Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-9-1 Automatic Data Link Table Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-9-2 Manual Data Link Table Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-10 Data Link Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-10-1 Data Link Communications Cycle Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-10-2 Data Exchange Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-10-3 Data Link I/O Response Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
44
45
46
48
51
51
52
55
55
55
58
58
58
59
59
60
62
62
63
63
65
66
43
Section 5-1
Data Link Overview
5-1
Data Link Overview
Data links can be created between the PCs in the same SYSMAC LINK Network
to exchange data between the PCs. This data is transferred between interconnected PCs automatically without requiring the use of normal I/O Units.
A region of the LR and/or DM Areas is set aside as the data link area in each PC
that is in the data link. A part of the data link area is allocated to the local node and
the rest is allocated to other nodes. Data can be written to the part of the data link
area allocated to the local node only. During data link refreshing, data written in
the local node is transferred to those parts of other nodes’ data link areas allocated to the local node. The result is that each PC in the data link has a common
data link area, the only difference being in the read/write permissions for the various parts of it, i.e., it can write to only those words allocated to it.
Data Link Tables
The data link area in each PC is defined by a data link table. Data link tables can
be generated automatically or manually. Automatic generation is accomplished
simply by setting the value of a single word (AR 07) in the start-up node. Data link
tables generated automatically are identical in all PCs in the data link, with the
regions of the data areas listed below divided equally among 2, 4, 8, or 16 nodes.
The areas used by each PC are listed in the following table.
CV Series
C200H, C200Hj, C1000H/C2000H
LR 00 to LR 63
CIO 1000 to CIO 1063
DM 0000 to DM 0127
D00000 to D00127
Manual generation requires generation of a separate data link table for each
node, but provides much greater flexibility in making data links among PCs. The
following table shows the data areas in which data link tables can be manually
generated.
C200H
C200Hj
C1000H/C2000H
LR 00 to LR 63
LR 00 to LR 63
LR 00 to LR 63
DM 0000 to DM 0999
DM 0000 to DM 5999
DM 0000 to DM 4095
The maximum number of linked words in a node depends on the SYSMAC LINK
Units used in the System, as shown in the following table.
SYSMAC LINK Unit
Note
Max. link words
C200HW-SLK13/23 only
918 words
C200HW-SLK14/24
2,966 words
C1000H-SLK14/24-V1
2,966 words
C200H-SLK11/SLK21-V1
918 words
1. In a system that uses only C200HW-SLK13/23 Units, the maximum number
of linked words is 918. If the C200HW-SLK13/23 is used in a system that
contains C200HW or C1000H SYSMAC LINK Units, 2,966 words can be
linked, but there is a limit on the words that can be accessed by the
C200HW-SLK13/23. Refer to 5-6-1 Combining the C200HW-SLK13/23
with other SYSMAC LINK Units.
2. The data link is restricted to a maximum of 918 words whenever one or more
C200H-SLK11/SLK21-V1 SYSMAC LINK Units are participating in the link.
3. When the C200HW-SLK14/24 is mounted to the C200H, data links for up to
2,966 words can be set, but only 918 words can be refreshed at the C200H
node. There are no restrictions in node address or common link parameters
when using the C200HW-SLK14/24.
44
Section 5-2
Creating Data Links
The following diagram shows the operation of a data link among four nodes in a
network. This data link was generated manually.
Data link area
LR00
Node 2
Node 5
LR Area
LR Area
LR10
#2
LR10
Node 6
LR Area
LR05
#5
#5
#5
#6
LR35
LR39
#6
#2
LR15
LR20
LR39
LR30
LR Area
LR00
#2
LR20
#5
Node 8
#6
LR49
LR54
Data link table
Refresh parameters
(can differ from
node to node)
Refresh parameters
(can differ from
node to node)
Refresh parameters
(can differ from
node to node)
Refresh parameters
(can differ from
node to node)
Common link
parameters
(the same in all
nodes)
Data Link Activation
Data links are activated either by a command sent from a CV-series PC, SSS, or
CVSS or by SYSMAC LINK Unit switch settings. (Refer to Section 2 Unit Components and Switch Settings for details on hardware switch settings.) When activated, the settings in AR 07 of the PC at the start-up node will determine the
nature of the links, i.e., whether the data link tables will be generated automatically or manually.
Data Link Operation
The orange LNK indicator on the front of the SYSMAC LINK Unit indicates the
operational status of the data link, as shown below.
LNK indicator
5-2
Data link status
ON
The Unit is part of an active data link.
Flashing
A data link error has occurred.
OFF
The Unit is not part of an active data link.
Creating Data Links
There are two ways to create a data link between PCs, automatically and manually. The value of AR 07 not only determines whether data links will be created
automatically or manually. If automatic generation is specified, the value of
AR 07 also determines how many nodes will be linked and whether the LR Area,
DM Area, or both will be used.
The other way to establish links is to create the link tables from the SSS/CVSS.
When the SSS/CVSS is used to create link tables manually, there is far more
flexibility in the structure of the data links than with automatic generation.
45
Section 5-3
Automatic Generation of Data Link Tables
Basic specifications for data links are provided in the following table.
Item
Description
No. of data link nodes
62 max., 2 min.
No. of linked words per node
LR area: 64 words max. (128 bytes)
DM area: 254 words max. (508 bytes)
2,966 words total in the LR and DM areas
(918 words total when only C200HW-SLK13/23 Units are being used.)
Settings in AR 07 determine whether LR 00 to LR 63 and/or DM 0000 to
DM 0127 will be used as data link areas, and whether these areas will be
divided equally among 2, 4, 8 or 16 nodes.
Max. number of linked words
Automatically generated data links
Manually generated data links
Set from the SSS/CVSS.
Data link table backup
EEPROM inside each SYSMAC LINK Unit
Other Link Systems
When both a SYSMAC LINK System data link and a SYSMAC NET Link System
data link exist between two PCs, the words that are linked and the data link status area must not overlap; each System must have unique link words and status
areas.
When a SYSMAC LINK Unit and a PC Link Unit are mounted on the same PC, do
not use the LR area for a SYSMAC LINK System data link or data link status
area.
5-3
Automatic Generation of Data Link Tables
AR 0700 through AR 0703 and AR 0704 through AR 0707 are used to specify
both automatic generation and data link table structure, as shown below. The
status of these bits is effective only in the PC at the start-up node.
The data in the first table is used to designate whether word allocation will be
automatic (according to these AR bits) or whether it will be set manually (from a
SSS/CVSS), and to designate which areas will be linked. The data in the second
table is used to designate the number of words per node. If manual generation
(the first setting in the first table) is used, the settings in the second table are
ignored.
Operating level 0
AR 0700
AR 0701
Operating level 1
AR 0704
AR 0705
Setting
OFF
OFF
OFF
OFF
Manual generation
ON
OFF
ON
OFF
Automatic
LR area only
OFF
ON
OFF
ON
generation
DM area only
ON
ON
ON
ON
LR and DM
areas
Words per Node
Operating level 0
AR 0702 AR 0703
Operating level 1
AR 0706 AR 0707
Words per node
LR area
DM area
Nodes in
data link
OFF
OFF
OFF
OFF
4
8
Up to 16
ON
OFF
ON
OFF
8
16
Up to 8
OFF
ON
OFF
ON
16
32
Up to 4
ON
ON
ON
ON
32
64
2
These settings are read every cycle while the SYSMAC LINK System is in
operation.
46
Section 5-3
Automatic Generation of Data Link Tables
Allocated Words
If automatic generation is specified by bits AR 0700/0701 or AR 0704/0705, the
words allocated to each Unit are determined by the node number of the Unit and
the Words per Node settings in the AR word shown above. Words are allocated
as shown in the following table.
LR words*
DM words*
Words per node
4
00 to 03
0000 to 0007
Node #1
04 to 07
0008 to 0015
Node #2
08 to 11
0016 to 0023
Node #3
12 to 15
0024 to 0031
Node #4
16 to 19
0032 to 0039
Node #5
20 to 23
0040 to 0047
Node #6
24 to 27
0048 to 0055
Node #7
28 to 31
0056 to 0063
Node #8
32 to 35
0064 to 0071
Node #9
36 to 39
0072 to 0079
Node #10
40 to 43
0080 to 0087
Node #11
44 to 47
0088 to 0095
Node #12
48 to 51
0096 to 0103
Node #13
52 to 55
0104 to 0111
Node #14
56 to 59
0112 to 0119
Node #15
60 to 63
0120 to 0127
Node #16
8
Node #1
16
Node #1
32
Node #1
Node #2
Node #3
Node #2
Node #4
Node #5
Node #3
Node #2
Node #6
Node #7
Node #4
Node #8
Note *When combining CV-series PCs in data links with C-series PCs, LR 00 to LR 63
in C-series PCs correspond to CIO 1000 to CIO 1063 in CV-series PCs and
DM 0000 to DM 0127 correspond to D00000 to D00127.
Data Flow
This example shows data flow resulting from automatic generation with four PCs
exchanging 16 LR words each. The data link table information in AR 07 of the
start-up node, indicates that only the LR Area will be used and it will be divided
into 4 parts; this information is transmitted to all nodes. The AR 07 settings in
other nodes are ignored. Shading indicates the words written and transmitted by
each PC; non-shaded words are those received from other PCs.
Node #1
Data Link Area Refresh
Node #2
Node #3
Node #4
LR 00 to
LR 15
LR 00 to
LR 15
LR 00 to
LR 15
LR 00 to
LR 15
(Node #1 data)
LR 16 to
LR 31
LR 16 to
LR 31
LR 16 to
LR 31
LR 16 to
LR 31
(Node #2 data)
LR 32 to
LR 47
LR 32 to
LR 47
LR 32 to
LR 47
LR 32 to
LR 47
(Node #3 data)
LR 48 to
LR 63
LR 48 to
LR 63
LR 48 to
LR 63
LR 48 to
LR 63
(Node #4 data)
Data links are refreshed for all nodes between the lowest-numbered and the
highest-numbered node designated to participate in the data link. Link words
automatically allocated to nodes assigned numbers lower than the lowest-number participating node or higher than the highest-number participating node can
be used as work words. Words allocated to a node number between the lowest
and highest-numbered nodes cannot be used as work words even if there isn’t a
node with that node number.
47
Section 5-4
Manual Generation of Data Link Tables
The example below shows a configuration consisting of four nodes that have
been set to link 8 words per node in the LR area only. Of the eight possible nodes,
only nodes #2, #4, #5, and #6 are actually in the System. Words normally allocated to nodes #1, #7, and #8 can therefore be used as work words, but words
normally allocated to node #3 cannot, because they are refreshed by the System.
System Configuration
Node 2
Node 4
Node 5
Node 6
Refreshing for the above System will be as shown below:
Node #1
Node #2
Node #3
Node #4
Node #5
Node #6
Node #7
Node #8
LR 00 to LR 07
Not refreshed.
LR 08 to LR 15
LR 16 to LR 23
LR 24 to LR 31
Refreshed.
LR 32 to LR 39
LR 40 to LR 47
LR 48 to LR 55
Not refreshed.
LR 56 to LR 63
5-4
Manual Generation of Data Link Tables
The CVSS is required to specify data link tables manually. Generating data link
tables manually allows considerable flexibility in data links. Each PC can be set
up independently to link to the desired PCs only.
To designate manual generation of data link tables, AR 0700 and AR 0701, or
AR 0704 and AR 0705 (depending on the operating level) must be all turned
OFF in the start-up node. The structure and operation of data link tables are
described in this manual. Refer to the CVSS Operation Manuals for specific procedures and displays used in setting the tables.
Data link tables contain two types of information: common link parameters,
which are the same in all nodes and control the overall structure of the data links,
and refresh parameters, which are set independently for each node to determine which links are to be established for that node.
Common Link Parameters
48
Common link parameters determine the communications cycle time of the data
link, which areas will be enabled for data links, and how many LR and DM words
will be transmitted from each PC. The same common link parameters must be
set in all nodes that are to be part of a data link in a Network. The displays used to
input the common link parameters are shown following the table.
Section 5-4
Manual Generation of Data Link Tables
It is possible to transfer the common link parameters from the node to which the
CVSS is connected to all the nodes designated by the CVSS.
Parameter
Communications cycle
time
The data link communications time between 5 and
255 ms. The communications cycle time will be selfgenerating if not specified.
No. of nodes in data link
and their node numbers
This information is set automatically when the No. of LR
words and No. of DM words parameters (see below)
are entered.
No. of LR words*
transmitted by each node
The number of LR words transmitted by each node
1 to 64: 1 to 64 words
-:
Not part of data link
0:
Can read LR words from other nodes only.
The number of DM words transmitted by each node
1 to 254: 1 to 254 words
-:
Not part of data link
0:
Can read DM words from other nodes only.
No. of DM words*
transmitted by each node
Note
Description
1. *When combining CV-series PCs in data links with C-series PCs, LR 00 to
LR 63 in the C-series PCs correspond to CIO 1000 to CIO 1063 in the CVseries PCs and DM 0000 to DM 0127 correspond to D00000 to D00127.
2. When combining C1000H-SLK11/SLK21-V1 or C200HW-SLK14/24 Units
with C200HW-SLK13/23 Units, all of the C200HW-SLK13/23 Units in the
data link must be within the last 918 words in the data link area.
CVSS
49
Section 5-4
Manual Generation of Data Link Tables
Refresh Parameters
Refresh parameters are set for each node to determine what links will actually be
created for that node, i.e., the words whose contents will be automatically transferred from other nodes. Enter the link words in the LR and DM Areas for the
local node as well as all of the nodes that the local node will link to.
Parameter
PC model
Node number
Description
Enter the model number of the PC at the local node (the node for
which the refresh parameters are being set).
Enter the node numbers of the local node and nodes that the
local node will link to. Nodes not set (set to “-”) in the Common
Link Parameters cannot be specified here.
No. of words
per node
Indicates the number of LR and DM words in the data link for
each node designated above. (Same as the “No. of LR words”
and “No. of DM words” in the Common Link Parameters.)
Beginning
status word
Sets the beginning word of the region in memory that will contain
the Data Link Status Flags for the nodes in the data link. Refer to
5-9 Data Link Status for details.
Beginning LR
word
Beginning DM
word
Sets the first word of the data link area in the LR Area (between 0
and 63).
Sets the first word of the data link area in the DM area.
0 to 999 for the C200H
0 to 5999 for the C200HX, C200HG, C200HE, or C200HS
0 to 4095 for the C1000H/C2000H
Note Refer to the CVSS Operation Manual for details on editing and setting data link
tables.
CVSS
Note Refer to the following when creating a data link table with the CVSS in a SYSMAC LINK network that includes CV- and C-series PCs.
• The PC setting in the refresh parameter table of each C-series PC must be
set to “Others.”
• LR 00 to LR 63 of the C-series PC’s LR area correspond to the CV-series
PC’s CIO 1000 to CIO 1063.
Table Backup
50
Data link tables are automatically backed up in the EEPROM of the Unit
involved. Previously set data link tables are completely overwritten whenever
new tables are created. If a Unit is turned off or re-initialized while the data link
table is being set, the table might not be backed up properly.
Section 5-5
Data Link Table Examples
5-5
Data Link Table Examples
Three examples of manually generated data links are presented in this section.
In the first, identical data link tables are set up in all nodes. In the second, a different data link table is set up in each node. In the third, data links are set up in two
separate groups of PCs.
5-5-1 Identical Data Link Tables
To generate the same data link tables in all PCs in the Network, set the same
refresh parameters for each node. Although refresh parameters must be set for
each node, the copy function in the computer can copy a node’s refresh parameters and greatly simplify the generation of the data link.
The data flow for an example configuration is shown below.
Data Flow
Node #1
Node #3
Node #5
Node #7
LR 05 to
LR 09
LR 05 to
LR 09
LR 05 to
LR 09
LR 05 to
LR 09
(Node #1 data)
LR 10 to
LR 14
LR 10 to
LR 14
LR 10 to
LR 14
LR 10 to
LR 14
(Node #3 data)
LR 15 to
LR 19
LR 15 to
LR 19
LR 15 to
LR 19
LR 15 to
LR 19
(Node #5 data)
LR 20 to
LR 29
LR 20 to
LR 29
LR 20 to
LR 29
LR 20 to
LR 29
(Node #7 data)
51
Section 5-5
Data Link Table Examples
5-5-2 Different Data Link Tables
In this example, the refresh parameters differ from node to node, so the data link
tables will also differ from node to node. There are four nodes in the network (2,
5, 6, and 8), but some nodes will not receive data from others. The settings for
the common link and refresh parameters are shown after the data flow.
Node 2
Node 5
Node 6
Node 8
LR Area
LR Area
LR Area
LR Area
LR Area
LR00
LR00
#2
LR10
LR05
#2
LR10
#5
LR10
#5
#5
#2
#6
LR25
#5
LR25
#6
LR29
#6
LR39
LR29
DM Area
DM Area
DM0020
DM0000
DM0000
#5
#5
DM0040
DM0020
#6
#6
DM0044
DM0025
#8
DM Area
DM0000
#5
#2
#6
DM0014
DM0015
#5
DM0025
#8
DM0029
Words written by local node
Words read by local node
52
#6
DM0005
DM0010
DM0030
DM0010
DM Area
#2
#2
DM0029
LR15
LR20
LR24
LR25
#6
Section 5-5
Data Link Table Examples
Common Link Parameters
These parameters are set from a SSS/CVSS, and need to be set only once for a
SYSMAC LINK Network. Enter the communications cycle time and the number
of DM and LR Area link words for each node in the data link, as shown below.
(Setting the number of LR Area link words to zero for node 8 means that node 8
will be able to receive but not send data.)
With manual data link table generation, the number of link words sent from each
node can be set in 1 word increments.
Refresh Parameters
These parameters are also set from a SSS/CVSS, and need to be set separately
for each node in the data link. Enter the PC model, beginning LR and DM words,
and beginning status word, then set the number of LR and DM link words for the
local node each node that the local node will link to.
The number of LR and DM words set for each node in the common link parameters will be allocated to nodes automatically in the order that they have been
entered into the refresh parameters table. Link word allocation starts at the
beginning LR and DM words. The order of nodes in the refresh parameters table
can be changed freely.
Node #2
In node 2, the data link area will be allocated to nodes 2, 5, 6, and 8 in that order,
so the node 2 refresh parameters are set as shown below.
53
Data Link Table Examples
Section 5-5
Node #5
In node 5, the data link area will be allocated to nodes 2, 5, and 6 in that order, so
the node 5 refresh parameters are set as shown below. DM Area allocation is set
to begin at DM 0020. (Node 8 data will not be received at node 5, so node 8 is not
entered in the table.)
Node #6
In node 6, the data link area will be allocated to nodes 5 and 6 in that order, so the
node 6 refresh parameters are set as shown below. LR Area allocation is set to
begin at LR 05. (Data from nodes 2 and 8 will not be received at node 6, so they
are not entered in the table.)
Node #8
In node 8, the data link area will be allocated to nodes 6, 2, 5, and 8 in that order,
so the node 5 refresh parameters are set as shown below. LR Area allocation is
set to begin at LR 10.
54
Section 5-6
Restrictions on C200HW-SLK13/14/23/24 Data Link Areas
5-5-3 Multiple Data Link Groups
The refresh parameters can be set up to simulate two or more groups of data
links within one Network. Although the common link parameters must designate
all the words to be transmitted by all nodes that are part of a data link, the refresh
parameters can be set up so the PCs in the Network are separated into groups of
PCs that only receive data from other PCs in the same group.
Although data is refreshed only within data link groups, all groups in one Network
are always started and stopped together. The data flow for this System is shown
below.
Data Flow
Node #1
Node #2
Node #3
Node #4
LR 00 to
LR 09
(#1 data)
LR 00 to
LR 09
(#1 data)
LR 00 to
LR 19
(#3 data)
LR 20 to
LR 39
(#3 data)
LR 10 to
LR 2
(#2 data)
LR 10 to
LR 29
(#2 data)
LR 20 to
LR 39
(#4 data)
LR 40 to
LR 59
(#4 data)
Group 1
5-6
Group 2
Restrictions on C200HW-SLK13/14/23/24 Data Link Areas
5-6-1 Combining the C200HW-SLK13/23 with other SYSMAC LINK Units
Manually generated data link areas can contain up to 2,966 words with C1000HSLK11/SLK21-V1 or C200HW-SLK14/24 SYSMAC LINK Units but only 918
words max. with C200HW-SLK13/23 SYSMAC LINK Units, so the following
conditions must be met in the common parameter table when the data link contains both C200HW-SLK13/23 and other SYSMAC LINK Units.
• Add the total number of words used by the nodes in the data link area (LR area
+ DM area) beginning with the node with the highest node number; all of the
C200HW-SLK13/23 Units in the data link must be within the last 918 words in
the data link area.
• The order in which the nodes are connected isn’t important.
• Even when the C200HW-SLK13/23 Units only receive data from other nodes,
they must be within the last 918 words in the data link area, because the maximum amount of data that can be received by C200HW-SLK13/23 Units is the
last 918 words in the data link area.
• C1000H-SLK11/SLK21-V1 and C200HW-SLK14/24 SYSMAC LINK Units can
use up to 2,966 words.
Note The simplest method to put the C200HW-SLK13/23 SYSMAC LINK Units within
the last 918 words in the data link area is to increase their node numbers and
place them at the end of the data link, but the following problems occur if the
node numbers are raised:
• The data link communications cycle is longer because it is necessary to
increase the maximum node number. (Refer to page 64 for details.)
• It takes longer to recognize the withdrawal or addition of nodes in the network.
55
Section 5-6
Restrictions on C200HW-SLK13/14/23/24 Data Link Areas
Case 1
C200HX: C200HW-SLK13/23
C1000H: C1000H-SLK11/21-V1
C200HX
C200HX
C200HX
C1000H
C1000H
C200HX
Node #13
Node #7
Node #6
Node #1
Node #11
Node #4
Nodes marked with an X
cannot be in the data link.
Common parameter table
Receivable data
918 words
X
#1
LR
#1
DM
#4
#1
LR
#1
DM
LR
#4
#4
DM
#6
LR
#6
#1
LR
#1
LR
#1
LR
#1
DM
#1
DM
#1
DM
LR
#4
LR
#4
LR
#4
#4
DM
#4
DM
#4
DM
#6
LR
#6
LR
#6
LR
DM
#6
DM
#6
DM
#6
#7
LR
#7
LR
#7
LR
#7
DM
#7
DM
#7
DM
#11
LR
#11
LR
#11
(3)
(4)
#11
DM
#11
DM
#13
LR
#13
LR
#13
DM
#13
DM
1, 2, 3...
56
X
(2)
(3)
(2)
(4)
#1
LR
#1
DM
LR
#4
LR
#4
DM
#4
DM
#6
LR
#6
LR
DM
#6
DM
#6
DM
#7
LR
#7
LR
#7
LR
#7
DM
#7
DM
#7
DM
LR
#11
LR
#11
LR
#11
LR
#11
DM
#11
DM
#11
DM
#11
DM
#13
LR
#13
LR
#13
LR
#13
LR
#13
DM
#13
DM
#13
DM
#13
DM
(1)
(5)
(5)
(5)
(5)
(1)
1. The C200HW-SLK13/23 SYSMAC LINK Units with node numbers 4 and 6
cannot be in the data link because the local nodes’ total transmission data
would exceed 918 words (counting from the highest node number) if those
nodes were in the data link. The SYSMAC LINK Units with node numbers 1
and 11 can be in the data link even if the total amount of data exceeds 918
words because they are C1000H-SLK11/SLK21-V1 Units.
2. The C200HW-SLK13/23 SYSMAC LINK Units with node numbers 7 and 13
can be in the data link because the local nodes’ total transmission data does
not exceed 918 words (counting from the highest node number).
3. The Units with node numbers 7 and 13 cannot receive data from node 1
because that node’s data is beyond the 918-word limit.
4. The Units with node numbers 7 and 13 can receive data from nodes 7, 11,
and 13 because these nodes’ data is within the 918-word limit.
5. The Units with node numbers 1 and 11 can receive data from nodes 1, 7, 11,
and 13. (These nodes can receive up to 2966 words.)
Section 5-6
Restrictions on C200HW-SLK13/14/23/24 Data Link Areas
Case 2
C200HX: C200HW-SLK13/23
C1000H: C1000H-SLK11/21-V1
C200HX
C200HX
C1000H
C1000H
C200HX
C200HX
C1000H
Node #17
Node #2
Node #18
Node #7
Node #4
Node #10
Node #1
Nodes marked with an X
cannot be in the data link.
X
X
Common Link Parameter Table
Data Link Area
#1
LR (Wd 10)
#1
DM (Wd 254)
#4
LR (Wd 10)
#4
DM (Wd 254)
#7
LR (Wd 10)
#7
DM (Wd 254)
C1000H
C200HX
C1000H
#17 LR (Wd 10)
C200HX
#17 DM (Wd 254)
#2 C200HX
(Read only)
#10 C200HX
(Read only)
918 words
#18 LR (Wd 10)
C1000H
#18 DM (Wd 254)
In this example the Units with node numbers 1, 7, 10, 17, and 18 can be part of
the data link. Even though it is a read-only node and doesn’t have transmission
data, the C200HX with node number 2 cannot be part of the data link because its
reception data would exceed 918 words.
The Units with node numbers 10 and 17 cannot receive data from node 1
because that node’s data is beyond the 918-word limit, however the
C1000H-SLK11/SLK21-V1 Units with node numbers 1, 7 and 18 can receive
data from nodes 1, 7, 17, and 18.
57
Section 5-7
Controlling Data Links
Case 3
C1000H: C1000H-SLK11/21-V1
CV1000 CV500-SLK11/21
C200HX: C200HW-SLK13/23
C1000H
C1000H
CV1000
C200HX
C200HX
C200HX
Node #1
Node #2
Node #3
Node #4
Node #5
Node #6
#1
LR
#1
LR
#1
LR
#1
DM
#1
DM
#1
DM
#2
LR
#2
LR
#2
LR
#2
DM
#2
DM
#2
DM
#3
LR
#3
LR
#3
LR
#3
DM
#3
DM
#3
DM
#4
LR
#4
LR
#4
LR
#4
LR
#4
LR
#4
LR
#4
DM
#4
DM
#4
DM
#4
DM
#4
DM
#4
DM
#5
LR
#5
LR
#5
LR
#5
LR
#5
LR
#5
LR
#5
DM
#5
DM
#5
DM
#5
DM
#5
DM
#5
DM
#6
LR
#6
LR
#6
LR
#6
LR
#6
LR
#6
LR
#6
DM
#6
DM
#6
DM
#6
DM
#6
DM
#6
DM
All nodes can be in the
data link.
Common parameter table
918 words
In this example node numbers 1 through 6 can all be in the data link.
The C200HW-SLK13/23 Units with node numbers 4 through 6 can be in the data
link because the local nodes’ transmission data is within the 918-word limit.
The Units with node numbers 1 through 3 can receive data from all 6 nodes
because they have a 2966-word limit.
The C200HW-SLK13/23 Units with node numbers 4 through 6 can receive data
from the other nodes with node numbers 4 through 6.
5-6-2 Installing C200HW-SLK14/24 SYSMAC LINK Units on C200H PCs
When a C200HW-SLK14/24 SYSMAC LINK Unit is installed on a C200H PC, a
data link with up to 2966 linked words can be made, but the maximum number of
words that can be refreshed in a C200H node is 918. There are no restrictions on
the node number settings or common link parameter settings when C200HWSLK14/24 SYSMAC LINK Units are used.
5-7
Controlling Data Links
Data links can be activated or halted by changing the settings of the DIP
switches on the start-up Unit, sending a command to the start-up Unit from a CVseries PC, SSS, or CVSS.
5-7-1 DIP Switch Settings
Data links can be started by turning ON pin 2 of DIP switch 1 of the SYSMAC
LINK Unit that is to be used as the start-up Unit. This Unit (node) must be part of
the data link. The AR settings in the start-up Unit will be used in creating data
links.
Data link operation can be stopped by turning OFF pin 2 of DIP switch 1 on all
nodes which are active in data link.
Note The PC must be turned off before changing DIP switch settings.
58
Section 5-8
Data Link Precautions
5-7-2 DATA LINK START/HALT Commands
Data link operations can be initiated by issuing a DATA LINK START command
from a CV-series PC or CVSS to the start-up node.
Data link operation can be stopped by issuing a DATA LINK HALT command
from a CV-series PC or CVSS to the start-up node.
Refer to 6-6-1 DATA LINK START and 6-6-2 DATA LINK HALT for details.
5-8
Data Link Precautions
Be sure to consider the precautions listed below when activating a data link or
adding a node to an existing data link.
Set-up and Activation
1, 2, 3...
Be sure to consider the precautions listed below when setting up and activating a
data link.
1. Refresh parameters must be set for each node in the data link when manually generating data link tables. When a data link is started in a node that
doesn’t have a data link table, a data link table error will occur and the LNK
indicator on that node will flash.
Refresh parameters must be set for all nodes that are included in the common link parameters in the start-up node.
2. With automatic generation of data link tables, the start-up node must be one
of the nodes in the data link defined by the settings in AR 07. The node numbers of the other nodes in the data link must also be in the range defined by
the settings in AR 07.
For example, if the settings in AR 07 divide the data link area among 4 nodes
(node numbers 1 to 4), node 5 cannot be the start-up node or participate in
the data link.
3. With manual generation of data link tables, the node number of the local
node must be included in the local refresh parameters.
4. If the beginning LR or DM word in the refresh parameters is set too high, the
LR or DM Area will be exceeded during automatic allocation of link words.
If the data area is exceeded in the start-up node, the LNK indicator on the
start-up node will flash and the data link will not operate. If the data area is
exceeded in another node, the LNK indicator on that node will flash and it will
not participate in the data link.
5. Do not turn on the data link activation switch (DIP switch 1, pin 2) on more
than one node. Doing so will not trigger an error, but the start-up node cannot be correctly determined.
Adding Nodes
Be sure to consider the precautions listed below when adding a node to an operating data link.
1, 2, 3...
1. The node number of the node being added must be in the common link
parameters of the operating data link.
2. If the start-up node of the operating data link is using manual generation of
data link tables, the node being added must have its refresh parameters set.
3. If the start-up node of the operating data link is using automatic generation
of data link tables, the common link parameters of the node being added
must match those of the operating data link, or it cannot be a part of data link
operations.
59
Section 5-9
Data Link Status
5-9
Data Link Status
The operational status of the data links in operating levels 0 and 1 is indicated in
the data link operating flags. SR 25202 is turned ON when a data link is active in
operating level 0 and SR 25205 is turned ON when a data link is active in operating level 1. These flags and corresponding SR bits are shown below.
SR bit
Node Status
Flag
25202
Operating Level 0 Data Link Operating Flag
25205
Operating Level 1 Data Link Operating Flag
In addition to the overall operational status of the data link, the status of any node
involved in data link operations can be checked from any other node included in
data link operations. The Data Link Status Flags are contained in SR 238 to
SR 245 when data link tables are generated automatically. The user selects the
location of the data link status flags in the refresh parameters when data link
tables are generated manually.
Note
1. If the Data Link Operating Flag for the local node is OFF, the data link status
will remain the same as the status right before the data link was stopped.
Therefore, there is no guarantee that other status information will be correct.
When using the data link status, make sure that the Data Link Operating
Flag for the local node is ON.
2. The Data Link Operating Flag for other nodes and PC Operating Flags are
used to confirm that the system has been properly started. These flags
alone cannot be used to detect communications errors. To detect communications errors, use the Communications Error Flag and PC Error Flag. The
operation of each flag is described in the following table.
Flag
Data Link Operating
Flag for local node
PC Operating Flag
PC Error Flag
Communications Error
Flag
Data Link Operating
Flag for other nodes
Programming Example
Flag operation
ON when the local node is participating in the data links.
When this flag is OFF, data link communications will not
be performed properly., and there is no guarantee that
other status information is correct.
ON when the PC in the node is operating. This flag
operates according to data sent from the remote node
and is thus valid only when the Communications Error
Flag is OFF.
ON when an error (fatal error or watchdog timer error)
has occurred in the PC. This flag operates according to
data sent from the remote node and is thus valid only
when the Communications Error Flag is OFF.
ON when data link data is not received continually from
the subject node due to a disconnection or other cause.
The flag will turn OFF when data is received properly
from the remote node.
ON after the remote node properly participates in the
data links. The flag will remain ON even after the remote
node ends participation in the data links.
Programming examples using data link status are shown below for the C200H,
C200HS, and C200HX/C200HG/C200HE.
Checking Data Link Participation of Other Nodes
As shown below, use an AND condition of a NO input of the Data Link Operating
60
Section 5-9
Data Link Status
Flag for the local node, a NC input of the Communications Error Flag for each
node, and a NO input of the Data Link Operating Flag for each node.
Node A: Data link participation
Local Node
Data Link Operating
Flag
Node A
Communications
Error Flag
Node A
Data Link Operating Flag
Node B: Data link participation
Node B
Communications
Error Flag
Node B
Data Link Operating Flag
Node n
Communications
Error Flag
Node n
Data Link Operating Flag
Node n: Data link participation
Checking for Data Link Errors any Node
As shown below, use an OR condition of a NC input of the Data Link Operating
Flag for the local node and NO inputs of the Communications Error Flags of the
other nodes.
Data link error occurred in
one of the nodes.
Local Node
Data Link Operating
Flag
Node A
Communications
Error Flag
Node B
Communications
Error Flag
Node n
Communications
Error Flag
Outputting a Local Node Error
The following programming can be used to output an error signal when local
node data link operation stops.
Local Node
Data Link Operating Flag
DIFU (13)
10000
10000
Reset bit
Local node
error output
Local node
error output
61
Section 5-9
Data Link Status
5-9-1 Automatic Data Link Table Generation
When data link tables are generated automatically, data link status is output to
SR 238 through SR 241 for the operating-level-0 data link. And to SR 242
through SR 245 for the operating-level-1 data link.
Level 0
Level 1
Bits
00 to 03
04 to 07
08 to 11
12 to 15
SR 238
SR 242
Node 1
Node 2
Node 3
Node 4
SR 239
SR 243
Node 5
Node 6
Node 7
Node 8
SR 240
SR 244
Node 9
Node 10
Node 11
Node 12
SR 241
SR 245
Node 13
Node 14
Node 15
Node 16
Each of the above sets of four bits contains the four flags indicating data link status for a node, as shown below.
Bits
Flag
Function
00, 04, 08, or 12
PC Mode*
Turned ON to indicate the PC is in RUN or
MONITOR mode. OFF indicates
PROGRAM mode.
01, 05, 09, or 13
PC Fatal Error*
02, 06, 10, or 14
Communications
Error
03, 07, 11, or 15
Data Link Status
Turned ON to indicate the PC has stopped
because of a fatal error.
Turned ON to indicate that there is a
communications error (time out), that the
Unit is not part of the System, or that the
data link is not active.
Turned ON to indicate the node is part of
the data link. OFF indicates that the data
link tables of the start-up node do not
match, or no operation is possible because
the data link table has not been created.
Note *The PC Mode and PC Fatal Error Flags are not valid when a communications
error has occurred.
Any of the above bits that are not used by the System (i.e., those bits assigned to
node numbers beyond the possible range) can be used for work bits.
5-9-2 Manual Data Link Table Generation
When data link tables are generated manually, data link status is output to consecutive words starting with the beginning status word designated in the refresh
parameters. Data status is only available for the nodes designated in the refresh
parameters, i.e., the nodes from which link data is being received. In the following table “m” is the beginning status word.
Word
Bits
00 to 03
04 to 07
08 to 11
12 to 15
m
Link no. 1
Link no. 2
Link no. 3
Link no. 4
m+1
Link no. 5
Link no. 6
Link no. 7
Link no. 8
m+2
Link no. 9
Link no. 10
Link no. 11
Link no. 12
m+3
Link no. 13
Link no. 14
Link no. 15
Link no. 16
...
...
...
...
...
m+14
Link no. 57
Link no. 58
Link no. 59
Link no. 60
m+15
Link no. 61
Link no. 62
The actual link status table will be only as long as required to store the status of
each node for which there is a link (see Example, below. Each of the above sets
of four bits operates as shown below.
62
Section 5-10
Data Link Characteristics
Each of the above sets of four bits contains the four flags indicating data link status for a node, as shown below.
Bits
Note
Example
Flag
Function
00, 04, 08, or 12
PC Mode*
Turned ON to indicate the PC is in RUN or
MONITOR mode. OFF indicates
PROGRAM mode.
01, 05, 09, or 13
PC Fatal Error*
02, 06, 10, or 14
Communications
Error
03, 07, 11, or 15
Data Link Status
Turned ON to indicate the PC has stopped
because of a fatal error.
Turned ON to indicate that there is a
communications error (time out), that the
Unit is not part of the System, or that the
data link is not active.
Turned ON to indicate the node is part of
the data link. OFF indicates that the data
link tables of the start-up node do not
match, or no operation is possible because
the data link table has not been created.
1. *The PC Mode and PC Fatal Error Flags are not valid when a communications error has occurred.
2. This status must not overlap other areas which may be in use (for example,
the data link area, SEND(90)/RECV(98) area, or areas used by the other
Network).
This example illustrates the location of data link status flags for a 10-node data
link with the following parameters. These are the only words that will be used.
Refreshed nodes
1, 2, 3, 4, 10, 15, 20, 28, 55, 62
Beginning status word
DM 0120
Word
Bits
00 to 03
Status Areas
04 to 07
08 to 11
12 to 15
DM 0120
Node 1
Node 2
Node 3
Node 4
DM 0121
Node 10
Node 15
Node 20
Node 28
DM 0122
Node 55
Node 62
(Not used.)
(Not used.)
The following memory areas can be used to store the status data. Be sure to
allow enough words after the beginning status word so that the entire link status
area fits within the same data area.
Area
C200H
C200Hj
C1000H
C2000H
IR and SR 0 to 252, 300 to 511
0 to 252
0 to 252
0 to 252
LR
0 to 63
0 to 63
0 to 63
0 to 63
HR
0 to 99
0 to 99
0 to 99
0 to 99
AR
0 to 27
0 to 27
0 to 27
0 to 27
T/C
0 to 511
0 to 511
0 to 511
0 to 511
DM
0 to 5999
0 to 999
0 to 4095
0 to 4095
Note The C200Hj PCs include the C200HX, C200HG, C200HE, and C200HS.
5-10 Data Link Characteristics
5-10-1 Data Link Communications Cycle Time
Data link servicing is given priority in SYSMAC LINK Systems. The communications time for a data link can thus be maintained as a constant, regardless of
whether or not SEND(90)/RECV(98) are used. Fixing the data link communications time at a constant value fixes the data link I/O response time as well.
63
Section 5-10
Data Link Characteristics
The communications cycle time can be set either automatically (the default) or
controlled externally.
Automatic Generation
When data link tables have been generated automatically, the communications
time will be as follows for systems using coaxial cable:
No. of nodes
Data link area
LR and DM Areas
LR Area only
DM Area only
2
19 ms
17 ms
18 ms
4
19 ms
17 ms
18 ms
8
19 ms
18 ms
18 ms
16
19 ms
18 ms
19 ms
The communications time will be as follows for systems using optical fiber cable.
No. of nodes
Data link area
LR and DM Areas
LR Area only
DM Area only
2
21 ms
20 ms
21 ms
4
22 ms
20 ms
21 ms
8
22 ms
21 ms
21 ms
16
22 ms
21 ms
22 ms
Manual Generation
When data link tables have been generated manually, the communications
cycle time can be set to a constant value or generated automatically.
The communications cycle time can be set as a constant from 5 to 255 ms in
increments of 1 ms via the SSS/CVSS to eliminate variations caused by noise or
other factors. When the communications cycle time is not set as a constant, it will
be generated automatically according to the equations below. Round the result
of the calculation to the nearest millisecond.
Communications cycle time (coaxial cable systems) =
Maximum node number × 85 ms + maximum number of frames × 654 ms
+ number of polled units × 750 ms + number of Link Units × 56 ms
+ total number of words × 10 ms + 1.322 ms
Communications cycle time (optical fiber cable systems) =
maximum node number × 111.5 ms + maximum number of frames × 770 ms
+ number of polled units × 750 ms + number of Link Units × 56 ms
+ total number of words × 10 ms + 1.322 ms
Note The present and maximum values of the communications cycle time can be
monitored from a SSS/CVSS.
3.Example Calculations
The examples below calculate the communications cycle time for both coaxial
and optical fiber cable with the following characteristics:
Maximum node number: . . . . . . 62
Maximum number of frames: . . 10
Number of polled units: . . . . . . . 4
Number of Link Units . . . . . . . . 32
Total number of words . . . . . . . 2000
Communications cycle time (coaxial cable systems) =
62 × 85 ms + 10 × 654 ms + 4 × 750 ms + 32 × 56 ms + 2000 × 10 ms + 1.322 ms
= 37.924 ms (38 ms after rounding)
Communications cycle time (optical fiber cable systems) =
62 × 111.5 ms + 10 × 770 ms + 4 × 750 ms + 32 × 56 ms + 2000 × 10 ms + 1.322 ms
= 40.727 ms (41 ms after rounding)
64
Section 5-10
Data Link Characteristics
Note Data links might not operate correctly if the communications cycle time is set to a
value shorter than that generated automatically by the system.
Changing the Communications Cycle Time
When the communications cycle time is generated automatically, it can be
changed by changing the other network parameters at the SSS/CVSS. The
default values and setting ranges of the other network parameters are shown in
the table below.
Network parameter
Default value
Setting range
Maximum node number
62
2 to 62
Number of polled units
4
1 to 62
Maximum number of frames
10
5 to 255
Use the following formulae to calculate the change in the communications cycle
time that results from a change in other network parameters. A positive result
indicates the communications cycle time has been decreased and a negative
result indicates it has been increased. Round the result of the calculation to the
nearest millisecond.
Change of the communications cycle time (coaxial cable systems) =
(old maximum node number - new maximum node number) × 85 ms
+ (old maximum number of frames - new maximum number of frames) × 654 ms
+ (old number of polled units - new number of polled units) × 750 ms
Change of the communications cycle time (optical fiber cable systems) =
(old maximum node number - new maximum node number) × 111.5 ms
+ (old maximum number of frames - new maximum number of frames) × 770 ms
+ (old number of polled units - new number of polled units) × 750 ms
Example Calculations
The examples below calculate the change of the communications cycle time for
both coaxial and optical fiber cable when the other network parameters are
changed as shown below:
Maximum node number: . . . . . . Changed from 62 to 16
Maximum number of frames: . . Changed from 10 to 13
Number of polled units: . . . . . . . Changed from 4 to 5
Change of the communications cycle time (coaxial cable systems) =
(62 – 16) × 85 ms + (10 – 13) × 654 ms + (4 – 5) × 750 ms =
1.198 ms (1 ms after rounding)
Change of the communications cycle time (optical fiber cable systems) =
(62 – 16) × 111.5 ms + (10 – 13) × 770 ms + (4 – 5) × 750 ms =
2.069 ms (2 ms after rounding)
Note
1. If the maximum node number is set below the node number of any nodes in
the data link, those nodes will no longer be part of the data link.
2. If the maximum number of frames is set too low, errors might occur during
execution of events such as SEND(90) and RECV(98) instructions, internode echo tests, and remote monitoring.
3. Lowering the number of polled units will increase the delay between resetting a Unit or turning on its PC’s power and its entrance into the network.
5-10-2 Data Exchange Timing
Data exchange takes place at the end of the cycle during CPU Unit servicing for
the SYSMAC LINK Unit, as indicated by the shaded areas in the diagrams. Data
exchange is limited to maximum of 1,642 words per cycle.
65
Section 5-10
Data Link Characteristics
The timing relationship between program execution and the exchange of data
between the PC and the SYSMAC LINK Unit’s buffer memory is illustrated in the
diagram below.
1 cycle
Program
executed
Program
executed
Program
executed
Program
executed
Data exchange
I/O refresh
Note Data exchange is not synchronized with data link processing.
5-10-3 Data Link I/O Response Time
The data link I/O response time is the time it takes for data to be transferred to
another node via the data link and output after it is input to the local node. In this
section, example calculations of the minimum and maximum data link I/O
response time are provided. The following system configuration is used in both
calculations (just one SYSMAC LINK Unit is mounted on each PC):
System Configuration
Cable type: . . . . . . . . . . . . . . . . .
Maximum node number: . . . . . .
Number of Link Units . . . . . . . .
Number of LR words . . . . . . . . .
Number of DM words . . . . . . . .
Maximum number of frames: . .
Number of polled units: . . . . . . .
Unit 1
Coaxial
62
8
8 words/node
16 words/node
10
4
SYSMAC LINK Unit
SYSMAC LINK Unit
PC
PC
Input
Input on PC
of Unit 1
LR bit
Output on PC
of Unit 7
Unit 7
X
Output
X
Input
LR XXXX
LR XXXX
Output
X
The data link I/O response time depends on the communications cycle time,
input ON delay, output ON delay, and the cycle times of the PCs involved. The
values are detailed below.
Communications Cycle Time The communications cycle time is calculated in the manner described in 5-10-1
Data LInk Communications Cycle Time.
Communications cycle time =
62 × 85 ms + 10 × 654 ms + 4 × 750 ms + 8 × 56 ms + 24 × 10 ms + 1.322 ms
= 18.500 ms (19 ms after rounding)
Input ON Delay
The input ON delay is the time it takes for an input device to turn ON an input to
the PC after receiving an input signal. In this system the input ON delay is 1.5 ms.
Output ON Delay
The output ON delay is the time it takes for an output device to turn ON an output
signal after receiving an output from the PC. In this system the output ON delay
is 15 ms.
Node #1 PC Cycle Time
The cycle time of the PC at node #1 is 20 ms or 15 ms.
66
Section 5-10
Data Link Characteristics
Node #7 PC Cycle Time
The cycle time of the PC at node #7 is 50 ms or 15 ms.
Minimum Response Time
The following diagram illustrates the data flow that will produce the minimum
response time, i.e., the time required if all signals and data transmissions are
processed as soon as they occur.
Input
I/O refresh
Input device
Data exchange
Input ON delay
1 cycle
Program
PC at node #1
SYSMAC LINK Unit
transmission processing
Data link transmission
1 cycle
Communications
cycle time
Program
PC at node #7
Output device
Output ON
delay
Data link I/O response time
Output
The equation for minimum data link I/O response time is as follows:
Response time =
input ON delay (0 ms) + cycle time of PC at node #0 (20 ms)
+ communications cycle time (19 ms) × 2 + cycle time of PC at node #7 (50 ms)
+ output ON delay (0 ms)
= 108 ms
Note Noise may increase I/O delays.
67
Section 5-10
Data Link Characteristics
Maximum Response Time
The maximum data link I/O response time is calculated for four cases.
Case 1
The following diagram illustrates the data flow that will produce the maximum
data link I/O response time when the cycle time of the PC at nodes #1 and 7 are
greater than the communications cycle time.
Input
I/O refresh
Input device
Data exchange
Input ON delay
X
1 cycle
(1)
Program
PC at node #1
X
(2)
SYSMAC LINK Unit
transmission processing
Data link transmission
Communications
cycle time
X
(3)
X
SYSMAC LINK Unit
transmission processing
Previous communications cycle data
X
(4)
Program
PC at node #7
1 cycle
Output device
Data link I/O response time
Output ON delay
Output
There are four points shown in the diagram above where processing is delayed,
increasing the data link I/O response time.
1, 2, 3...
Note
68
1. The input arrives in the PC just after I/O refreshing, causing a delay of up to
one cycle before the input is read into the PC.
2. Data exchange occurs just after the PC at node #1 passes the token that
makes it the polling unit, causing a delay of up to one communications cycle
time before the data is transferred in data link processing.
3. At node #7, data from the previous data exchange is still being transferred,
causing a delay of up to one cycle before the input is read into the PC.
4. The data transferred in data link processing arrives at the PC at node #7
after data exchange, so the data will not be read into the PC until the next
data exchange, causing a delay of up to one cycle.
Up to 1,642 words can be transferred in a single data exchange, so a delay
of another cycle will occur if more than 1,642 words are being transferred.
The equation for maximum data link I/O response time is as follows:
Response time =
input ON delay (1.5 ms) + cycle time of PC at node #1 (20 ms) × 2
+ communications cycle time (19 ms) × 3 + PC cycle time at node #7 (50 ms) × 3*
+ output ON delay (15 ms) = 263.5 ms*
1. *If more than 1,642 words are being transferred, 4 cycles of the PC at node
#7 are required and the total response time becomes 313.5 ms.
2. Noise may increase I/O delays.
Section 5-10
Data Link Characteristics
Case 2
The following diagram illustrates the data flow that will produce the maximum
data link I/O response time when the cycle time of the PC at node #1 y the communications cycle time and the cycle time of the PC at node #7 t the communications cycle time.
Input
I/O refresh
Input device
Data exchange
Input ON delay
X
1 cycle
(1)
Program
PC at node #1
X
(2)
SYSMAC LINK Unit
transmission processing
Data link transmission
SYSMAC LINK Unit
transmission processing
Communications
cycle time
X
(3)
Program
PC at node #7
1 cycle
Output device
Output ON
delay
Data link I/O response time
Output
There are three points shown in the diagram above where processing is
delayed, increasing the data link I/O response time.
1, 2, 3...
1. The input arrives in the PC just after I/O refreshing, causing a delay of up to
one cycle before the input is read into the PC.
2. Data exchange occurs just after the PC at node #1 passes the token that
makes it the polling unit, causing a delay of up to one communications cycle
time before the data is transferred in data link processing.
3. The data transferred in data link processing arrives at the PC at node #7
after data exchange, so the data will not be read into the PC until the next
data exchange, causing a delay of up to one cycle.
Up to 1,642 words can be transferred in a single data exchange, so a delay
of another cycle will occur if more than 1,642 words are being transferred.
The equation for maximum data link I/O response time is as follows:
Response time =
input ON delay (1.5 ms) + cycle time of PC at node #1 (20 ms) × 2
+ communications cycle time (19 ms) × 3 + PC cycle time at node #7 (15 ms) × 2*
+ output ON delay (15 ms)
= 143.5 ms*
Note
1. *If more than 1,642 words are being transferred, 3 cycles of the PC at node
#7 are required and the total response time becomes 158.5 ms.
2. Noise may increase I/O delays.
69
Section 5-10
Data Link Characteristics
Case 3
The following diagram illustrates the data flow that will produce the maximum
data link I/O response time when the cycle time of the PC at node #1 t the communications cycle time and the cycle time of the PC at node #7 y the communications cycle time.
Input
I/O refresh
Input device
Data exchange
Input ON delay
X
1 cycle
(1)
Program
PC at node #1
A
X
(2)
SYSMAC LINK Unit
transmission processing
Data link transmission
Communications
cycle time
(3)
X
SYSMAC LINK Unit
transmission processing
Previous communications cycle data
X
(4)
Program
PC at node #7
1 cycle
Output device
Data link I/O response time
Output ON delay
Output
There are three points shown in the diagram above where processing is
delayed, increasing the data link I/O response time.
1, 2, 3...
Note
70
1. The input arrives in the PC just after I/O refreshing, causing a delay of up to
one cycle before the input is read into the PC.
2. At point A, data from the previous exchange is still being transferred, so new
data cannot be exchanged, causing a delay of one communications cycle
time. Furthermore, the data exchange then occurs just after the PC at node
#1 passes the token for the polling unit, causing another delay of one communications cycle time before the data is transferred in data link processing.
3. At node #7, data from the previous data exchange is still being transferred,
causing a delay of up to one cycle before the input is read into the PC.
4. The data transferred in data link processing arrives at the PC at node #7
after data exchange, so the data will not be read into the PC until the next
data exchange, causing a delay of up to one cycle.
Up to 1,642 words can be transferred in a single data exchange, so a delay
of another cycle will occur if more than 1,642 words are being transferred.
The equation for maximum data link I/O response time is as follows:
Response time =
input ON delay (1.5 ms) + cycle time of PC at node #1 (15 ms) × 2
+ communications cycle time (19 ms) × 3 + PC cycle time at node #7 (50 ms) × 3*
+ output ON delay (15 ms) = 253.5 ms*
1. *If more than 1,642 words are being transferred, 4 cycles of the PC at node
#7 are required and the total response time becomes 303.5 ms.
2. Noise may increase I/O delays.
Section 5-10
Data Link Characteristics
Case 4
The following diagram illustrates the data flow that will produce the maximum
data link I/O response time when the cycle time of the PC at node #1 t the communications cycle time and the cycle time of the PC at node #7 t the communications cycle time.
Input
I/O refresh
Input device
Data exchange
Input ON delay
X
1 cycle
(1)
Program
PC at node #1
A
X
(2)
SYSMAC LINK Unit
transmission processing
Data link transmission
SYSMAC LINK Unit
transmission processing
Communications
cycle time
(3)
X
Program
PC at node #7
1 cycle
Output device
Output ON
delay
Data link I/O response time
Output
There are three points shown in the diagram above where processing is
delayed, increasing the data link I/O response time.
1, 2, 3...
Note
1. The input arrives in the PC just after I/O refreshing, causing a delay of up to
one cycle before the input is read into the PC.
2. At point A data from the previous data exchange is still being transferred, so
the new data cannot be exchanged, causing a delay of up to one communications cycle time. Furthermore, the data exchange then occurs just after
the PC at node #1 passes the token that makes it the polling unit, causing
another delay of up to one communications cycle time before the data is
transferred in data link processing.
3. The data transferred in data link processing arrives at the PC at node #7
while data exchange is taking place, so the data will not be read into the PC
until the next data exchange, causing a delay of up to one cycle.
Up to 1,642 words can be transferred in a single data exchange, so a delay
of another cycle will occur if more than 1,642 words are being transferred.
The equation for maximum data link I/O response time is as follows:
Response time =
input ON delay (1.5 ms) + cycle time of PC at node #1 (15 ms) × 2
+ communications cycle time (19 ms) × 3 + PC cycle time at node #7 (15 ms) × 2*
+ output ON delay (15 ms) = 133.5 ms*
1. *If more than 1,642 words are being transferred, 3 cycles of the PC at node
#7 are required and the total response time becomes 148.5 ms.
2. Noise may increase I/O delays.
71
SECTION 6
Data Read/Write Services
The data read/write services include the SEND(90) and RECV(98) instructions and CV-mode commands. SYSMAC LINK
Units can receive but not transmit CV-mode commands. The data read/write services allow data transmission between nodes
and distributed control.
6-1
6-2
6-3
6-4
6-5
6-6
About Data Read/Write Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NETWORK READ/WRITE Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-2-1 Specifying Destination Nodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-2-2 Instruction Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-2-3 NETWORK WRITE - SEND(90) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-2-4 NETWORK READ - RECV(98) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-2-5 Response Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-2-6 Network Instruction Status Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-2-7 Delay Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CV-mode Command/Response Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-3-1 List of CV-mode Commands for PCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-3-2 List of CV-mode Commands for SYSMAC LINK Units . . . . . . . . . . . . . . . . . . .
6-3-3 CV-mode Response Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Memory Area Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-4-1 Word/Bit Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-4-2 Memory Area Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-4-3 Data Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CV-mode Commands for PCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-1 MEMORY AREA READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-2 MEMORY AREA WRITE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-3 MULTIPLE MEMORY AREA READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-4 PARAMETER AREA WRITE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-5 PROGRAM AREA READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-6 PROGRAM AREA WRITE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-7 RUN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-8 STOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-9 CONTROLLER DATA READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-10 CONTROLLER STATUS READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-11 CLOCK READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-12 CLOCK WRITE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-13 ERROR CLEAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-14 FILE MEMORY INDEX READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-15 FILE MEMORY BLOCK READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-16 FILE MEMORY BLOCK WRITE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-17 FORCED SET/RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-18 FORCED SET/RESET CANCEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-19 FORCED STATUS READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CV-mode Commands for SYSMAC LINK Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-6-1 DATA LINK START . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-6-2 DATA LINK HALT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-6-3 RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-6-4 CONTROLLER DATA READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-6-5 CONTROLLER STATUS READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-6-6 NETWORK STATUS READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-6-7 DATA LINK STATUS READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-6-8 INTERNODE ECHO TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-6-9 BROADCAST TEST RESULTS READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-6-10 BROADCAST TEST DATA SEND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
74
74
74
75
76
77
79
80
84
86
87
87
88
88
89
89
89
90
90
90
91
92
92
93
94
94
95
95
97
97
98
98
99
100
101
102
102
103
103
103
104
104
105
107
108
109
110
110
73
Section 6-2
NETWORK READ/WRITE Instructions
6-1
About Data Read/Write Services
In addition to SEND(90) and RECV(98) instructions, a C-series PC equipped
with a SYSMAC LINK Unit* can receive but not issue CV-mode commands.
With these data read/write services, data can be transmitted between PCs
and CVSS or CV-series PCs in the network and operation at other nodes can
be controlled remotely.
The data read/write services use a command/response format. Each time
that data or a command from a CVSS or CV-series PC is transmitted, the
receiving node returns a response. If responses aren’t needed, the Unit can
be set so that responses are not returned. The same transmission can be
broadcast simultaneously to all nodes on the network.
Note *The SYSMAC LINK Units covered in this manual can receive and process the
CV-mode commands issued from a computer or CV-series PC, but the
C200H-SLK21 and C1000H-SLK21 SYSMAC LINK Units cannot receive CVmode commands.
Data Read/Write Service Transmissions
The data read/write services with the SYSMAC LINK Unit are primarily used
in the 4 situations described below.
Computer Transmission
Prepare a program in the computer that transmits commands and receives
responses. Should the SYSMAC LINK Support Board be used, make sure that
the proper drivers and files are installed. (When programming in the C code,
transmit commands with slksend and receive responses with slkrecv or
slkrcvw.)
PC Transmission
Transfer data using the SEND(90) and RECV(98) instructions. You may need to
move data being transferred to/from the location in memory specified in the
instruction, but the actual transmission and reception is handled automatically.
(No commands can be transmitted other than SEND(90) and RECV(98).)
Computer Reception
A program that returns proper responses for received commands must be prepared in the computer prior to command reception.
PC Reception
The SYSMAC LINK Unit receives and processes SEND(90), RECV(98), and
CV-mode commands and returns the proper responses automatically. Since all
of the processing is handled automatically, it isn’t necessary to prepare a routine
for command reception in the PC program.
6-2
NETWORK READ/WRITE Instructions
Data is sent from the PC to other nodes (PCs or computers) using the NETWORK READ/WRITE instructions (SEND(90) or RECV(98)) in the PC user program.
6-2-1 Specifying Destination Nodes
The following two types of communications, based on specifying destination
nodes, are possible.
Sending and Receiving
Data Between Specific
Nodes
The SEND(90) and RECV(98) instructions can be used to transfer control data
to or from a node specified by node address.
Send data
Receive data
Node 1
74
Node 2
Node 3
Node 4
Node 5
Section 6-2
NETWORK READ/WRITE Instructions
Broadcasting Data
It is possible to transfer the same data to all nodes in a network simultaneously
by designating the destination node as 00. This transmission is called broadcasting. No responses are returned to broadcasts. (Broadcasting cannot be performed with the RECV(98) instruction.)
Broadcast data
Node 1
Node 2
Node 3
Node 4
Node 5
Note With C200HX/HG/HE PCs, two Communications Units can be connected but
the bridge function and gateway function cannot be used.
C200HX/HG/HE
CS, CVM1/CV
6-2-2 Instruction Specifications
The NETWORK READ/WRITE instructions (SEND(90)/RECV(98)) enable
data to be sent and received between nodes within a single network under
control of a user program. The user can specify that a receiving node send a
response to the sending node to acknowledge receipt of the data. The basic
specifications of these instructions are given in the following table.
Transmission format
Packet length
Data content
Response time-out
parameters
Number of retries
Data Transfer Area
1:1 data transfer
1:N data transmit only (broadcast mode; no response)
256 words max. (within the same memory area only)
When SEND(90) is executed, command/response data
for a data transmission request is transferred.
When RECV(98) is executed, command/response data
for a data reception request is transferred.
00:
2 seconds
FF:
Response time-out ignored.
01 to FE: user-definable
(in increments of 100 ms, 100 to 25,400 ms)
0 to 15
The data transfer area, which is used for data transmission and reception using
the SEND and RECV instructions, varies with the PC.
Area
C200HX/HG/HE
C200HS
IR and
SR
000 to 511 (SEND)
000 to 252, 256 to
511 (RECV)
000 to 511 (SEND)
000 to 252, 256 to
511 (RECV)
LR
00 to 63
HR
AR
C200H
C1000H
C2000H
000 to 255 (SEND)
000 to 252 (RECV)
000 to 255 (SEND)
000 to 252 (RECV)
000 to 255 (SEND)
000 to 252 (RECV)
00 to 63
00 to 63
00 to 63
00 to 63
00 to 99
00 to 99
00 to 99
00 to 99
00 to 99
00 to 27
00 to 27
00 to 27
00 to 27
00 to 27
T/C
000 to 511
000 to 511
000 to 511
000 to 511
000 to 511
DM
0000 to 6655
0000 to 6655
0000 to 1999 (SEND)
0000 to 0999 (RECV)
0000 to 4095
0000 to 6655
EM
0000 to 6143
None
Unit: word
75
Section 6-2
NETWORK READ/WRITE Instructions
Note The data transfer area must not exceed the above ranges.
6-2-3 NETWORK WRITE - SEND(90)
The ladder diagram programming symbols, operand names, and allowable
data areas for SEND(90) are shown below.
Operand Data Areas
Ladder Symbols
S: Source beginning word
SEND(90)
@SEND(90)
S
S
D
D
C
C
IR, SR, AR, DM, HR, TC, LR
D: Destination beginning word
IR, AR, DM, HR, TC, LR
C: First control data word
IR, AR, DM, HR, TC, LR
Limitations
C through C+2 must be within the same data area and must be within the values
specified below. The first and last source word must be within the same data
area.
Description
When executed with an ON execution condition, SEND(90) transfers data
beginning at word S, to addresses specified by D in the designated node on the
SYSMAC LINK System. The control words, beginning with C, specify the number of words to be sent, the destination node, and other parameters.
Bit 15 of C+1 determines whether the instruction is for a SYSMAC NET Link
System or a SYSMAC LINK System.
Control Data
Set the destination node number to 00 to broadcast the data to all nodes in the
network.
Word
Bits 00 to 07
C
Number of words (0 to 256 in 4-digit hexadecimal, i.e., 0000hex to
0100hex)
C+1
Response time limit (0.1 and 25.4
seconds in 2-digit hexadecimal
without decimal point, i.e., 00hex to
FFhex)
Note: The response time will be 2
seconds if the limit is set to 0hex.
There will be no time limit if the
time limit is set to FFhex.
C+2
Note
Bits 08 to 15
Destination node number
(1 to 62 in 2-digit hexadecimal,
i.e., 01hex to 3Ehex)2
Bits 08 to 11:
No. of retries (0 to 15 in
hexadecimal,
i.e., 0hex to Fhex)
Bit 12: Indirectly addressed
beginning reception flag
ON: Indirect addressing
OFF: No indirect addressing
Bit 13 ON: Response not returned.
OFF: Response returned.1
Bit 14 ON: Operating level 0
OFF: Operating level 1
Bit 15: Set to 1.
(SYSMAC LINK flag)
Bits 08 to 12:
Destination node unit
number (0 to 4)3
Bits 13 to 15: Set to 0.
1. If the instruction is set for broadcast transmission, no response will be
returned even if bit 13 is OFF.
2. The node number of the PC executing the send cannot be set.
3. Set the destination node unit number to 00 when sending data to a PC. Settings 01 to 04 specify computer applications 1 to 4.
76
Section 6-2
NETWORK READ/WRITE Instructions
4. Indirectly Addressed Beginning Reception Flag:
The CV-series PC has a larger data area than the C-series PC. Therefore,
the beginning reception word of the destination node cannot be always designated by the operand of the SEND(90). If the beginning reception word
cannot be designated, set the indirectly addressed beginning reception flag
to 1 (ON: indirect addressing), in which case the second operand (D) will be
the indirect beginning reception word, and it will be possible to designate the
beginning reception word (rightmost word) of the destination node in BCD
with the word designated by the second operand (D).
Bit
15
14
12
11
10
9
8
Data area code
D+0
D+1
13
Word no. (fourth digit)
7
6
5
4
3
0
0
0
0
Word no. (fifth digit)
Word no. (second
digit)
Word no. (third digit)
2
1
0
Word no. (first digit)
This operation is possible with a C200HW-SLK13/14/23/24 SYSMAC LINK
Unit mounted in a C200HX, C200HG, C200HE, C200HS, or C200H PC
only.
Refer to the following table to designate the data area.
Destination node (C-series PC)
Area
Destination node (CV-series PC)
I/O (IR)
Data area
code
00
Area
Core I/O (CIO)
Data area
code
00
Link Relay (LR)
06
CPU Bus Link (G)
01
Holding Relay (HR)
07
Auxiliary (A)
02
Auxiliary Relay (AR)
08
Timer (T)
03
Timer/Counter (T/C)
03
Counter (C)
04
Data Memory (DM)
05
Data Memory (D)
Extended
Banks 0 to 7
Data
Current bank
Memory (E)
05
10 to 17
18
6-2-4 NETWORK READ - RECV(98)
The ladder diagram programming symbols, operand names, and allowable
data areas for RECV(98) are shown below.
Operand Data Areas
Ladder Symbols
S: Source beginning word
RECV(98)
@RECV(98)
S
S
D
D
C
C
IR, SR, AR, DM, HR, TC, LR
D: Destination beginning word
IR, AR, DM, HR, TC, LR
C: First control data word
IR, AR, DM, HR, TC, LR
Limitations
C through C+2 must be within the same data area and must be within the values
specified below.
Description
When executed with an ON execution condition, RECV(88) transfers data
beginning at S from a node on the SYSMAC LINK System to words beginning at
D. The control words, beginning with C, provide the number of words to be
received, the source node, and other transfer parameters.
77
Section 6-2
NETWORK READ/WRITE Instructions
Bit 15 of C+1 determines whether the instruction is for a SYSMAC NET Link
System or a SYSMAC LINK System.
Word
Bits 08 to 15
C
Number of words (0 to 256 in 4-digit hexadecimal, i.e., 0000hex to
0100hex)
C+1
Response time limit (0.1 and 25.4
seconds in 2-digit hexadecimal
without decimal point, i.e., 00hex to
FFhex)
C+2
Note
Bits 00 to 07
Note: The response time will be 2
seconds if the limit is set to 0hex.
There will be no time limit if the
time limit is set to FFhex.
Bits 08 to 11:
No. of retries (0 to 15 in
hexadecimal,
i.e., 0hex to Fhex)
Bit 12: Indirectly addressed
beginning destination flag
ON: Indirect addressing
OFF: No indirect addressing
Bit 13: Set to 0.
Bit 14 ON: Operating level 0
OFF: Operating level 1
Bit 15: Set to 1.
(SYSMAC LINK flag)
Source node number
(1 to 62 in 2-digit hexadecimal,
i.e., 01hex to 3Ehex)1
Bits 08 to 11:
Source node unit
number (0 to 4)2
Bits 13 to 15: Set to 0.
1. The node number of the PC executing RECV(98) cannot be set.
2. Set the source node unit number to 00 when sending data to a PC. Settings
01 to 04 specify computer applications 1 to 4.
3. Indirectly Addressed Beginning Destination Flag:
The CV-series PC has a larger data area than the C-series PC. Therefore,
the beginning destination word of the destination node cannot be always
designated by the operand of the RECV instruction. If the beginning destination word cannot be designated, set the indirectly addressed beginning destination flag to 1 (ON: indirect addressing), in which case the first operand
(S) will be the indirect beginning destination word, and it will be possible to
designate the beginning destination word (rightmost word) of the destination node in BCD with the word designated by the first operand (S).
Bit
15
14
S+0
S+1
13
12
11
10
9
8
Data area code
Word no. (fourth digit)
Word no. (third digit)
7
6
5
4
3
0
0
0
0
Word no. (fifth digit)
Word no. (second
digit)
2
1
0
Word no. (first digit)
This operation is possible with a C200HW-SLK13/14/23/24 SYSMAC LINK
Unit mounted in a C200HX, C200HG, C200HE, C200HS, or C200H PC
only.
Refer to the following table to designate the data area.
Destination node (C-series PC)
Area
78
Destination node (CV-series PC)
I/O (IR)
Data area
code
00
Area
Core I/O (CIO)
Data area
code
00
Link Relay (LR)
06
CPU Bus Link (G)
01
Holding Relay (HR)
07
Auxiliary (A)
02
Auxiliary Relay (AR)
08
Timer (T)
03
Timer/Counter (T/C)
03
Counter (C)
04
Data Memory (DM)
05
Data Memory (D)
Extended
Banks 0 to 7
Data
Current bank
Memory (E)
05
10 to 17
18
Section 6-2
NETWORK READ/WRITE Instructions
6-2-5 Response Codes
When SEND(90) or RECV(98) is used in a SYSMAC LINK System, a
response code is returned to indicate that the data transfer was completed
successfully or identify the nature of the error when communications are not
completed successfully.
The most recent response code will be retained until another SEND(90) or
RECV(98) instruction is executed. The output bits and the error codes are as
follows:
PC
C200HX,, C200HG,, C200HE,,
C200HS C200H
C200HS,
C1000H/C2000H
Response
code
Name
Bits1
Operating level
Level 0
Level 1
Levels 0 and 12
SR 23700 to SR 23707
SR 23708 to SR 23715
SR 23700 to SR 23707
Meaning
00
Normal end3
Data transfer was completed successfully.
01
Parameter error
SEND(90)/RECV(98) instruction operands are not within specified ranges.
02
Transmission impossible
The System was reset during execution of the instruction or the destination
node is not in the System.
03
Destination not in System
The destination node is not in the System.
04
Busy error
The destination node is busy and cannot receive the transfer.
05
Response timeout
A response was not received within the time limit.
06
Response error
The response received from the destination node was incorrect.
07
Communications controller An error occurred in the communications controller.
error
08
Setting error
The node number was set incorrectly.
09
CPU Unit error
A CPU Unit error occurred in the PC of the destination node.
Note
1. The response codes listed here occupy only one byte, unlike the command/
response response codes which occupy two bytes.
2. Only the most recent response code, from either level, is retained.
3. The response code will also be 00 while the instruction is being executed.
79
Section 6-2
NETWORK READ/WRITE Instructions
6-2-6 Network Instruction Status Flags
SEND(90) and RECV(98) are based on command/response processing. That
is, the transmission is not complete until the sending node receives and
acknowledges a response from the destination node. Operation without a
response is also possible for SEND(90), if desired. The SEND(90)/RECV(98)
Enable Flag is not turned ON until the first END(01) after the transmission is
completed.
If multiple SEND(90)/RECV(98) operations are used, the following flags must
be used to ensure that any previous operation is completed before attempting another. Because the C200H/C200HS provides separate flags for each
operating level, it is possible to control these independently and have operations going on in both levels simultaneously. With the C1000H/C2000H, only
one SEND(90)/RECV(98) operation should be performed in the network at a
time, regardless of the number of operating levels.
C200HX/C200HG/C200HE/
C200HS/C200H
Enable Flag
Level 0: SR 25201
Level 1: SR 25204
Error Flag
Level 0: SR 25200
Level 1: SR 25203
C1000H/C2000H
Functions
Enable Flag
All levels SR 25204
OFF during SEND(90)/RECV(98) execution (including command
response processing). Do not start a SEND(90)/RECV(98)
operation unless this flag is ON.
Error Flag
All levels: SR 25203
OFF following normal completion of SEND/RECV (i.e., after
reception of response signal)
ON after an unsuccessful SEND(90)/RECV(98) attempt. Error
status is maintained until the next SEND(90)/RECV(98) operation.
Error types:
Time-out error (command/response time greater than 1 second)
Transmission data errors
Timing
The following diagram shows the status of the Enable Flag, Error Flag, and
response code while two network instructions are issued in the C1000H PC. An
error occurs during execution of first instruction.
1
Enable Flag
0
1
Error Flag
0
Response code
Previous
response code
00
Instruction #1
received
Instruction
#1
00
response code
Instruction #1 completed
Instruction #2
received
Instruction #2
response code
Instruction #2
completed
Data Processing for
SEND(90)/RECV(98)
Data is transmitted for SEND(90) and RECV(98) for the C1000H/C2000H when
SEND(90)/RECV(98) is executed and for the C200H/C200Hj when END(01) is
executed. Final processing for transmissions/receptions is performed when
END(01) is executed for all PCs.
Programming Example:
Multiple
SEND(90)/RECV(98)
To ensure successful SEND(90)/RECV(98) operations, the program must use
the SEND(90)/RECV(98) Enable Flag and SEND(90)/RECV(98) Error Flags to
confirm that execution is possible. The following program shows one way to do
this:
80
Section 6-2
NETWORK READ/WRITE Instructions
00000
25204
12802
S
KEEP(11)
12800
(Enable Flag)
12801
12800 prevents execution of SEND(90) until
RECV(98) (below) is completed. IR 00000 is
turned ON to start transmission.
R
12800
@MOV(21)
#000A
DM 0000
@MOV(21)
Data is placed into control data words to specify the 10 words to be transmitted to node 3 in
operating level 0.
#8000
DM 0001
@MOV(21)
DM 000
DM 001
DM 002
00
80
00
0A
00
03
10 words
Node 3 (a PC)
#0003
DM 0002
XFER(70)
#0010
Transfers the 10 words beginning at IR 000 to
the 10 words beginning at DM 0010.
000
DM 0010
@SEND(90)
DM 0010
DM 0020
DM 0000
12800
25204
DIFU(13)
12800
25203
12801
SEND(90)/RECV(98)
Error Flag
00200
00001
25204
12800
S
KEEP(11)
12802
Turns ON to indicate transmission error.
12802 prevents execution of RECV(98) when
SEND(90) above has not completed. IR
00001 is turned ON to start transmission.
12803
R
12802
@MOV(21)
#0010
DM 0003
@MOV(21)
#8000
Data moved into control data words to specify
the 16 words to be transmitted from node 4 in
operating level 0.
DM 0004
@MOV(21)
#0004
DM 0005
DM 003
DM 004
DM 005
00
80
00
10
00
04
16 words
Node 4 (a PC)
@RECV(98)
HR 10
LR 10
DM 0003
12802
25204
DIFU(13)
12802
25203
12801
SEND(90)/RECV(98)
Error Flag
00201
12802
25204
Turns ON to indicate reception error.
12800
XFER(70)
#0016
LR 10
Transmitted data moved into words
beginning at DM 0030 for storage.
DM 0030
81
Section 6-2
NETWORK READ/WRITE Instructions
Indirect Addressing of Beginning Words for C200H/C200Hj PCs
00000
25204
12802
S
KEEP(11)
12800
(Enable Flag)
12801
R
12800
The transmission program is started when IR
00000 goes ON, provided that the
SEND(90)/RECV(98) Enable Flag is ON (indicating RECV(98) isn’t being executed).
IR 12800 is ON while SEND(90) is being
executed.
@MOV(21)
#000A
DM 0000
Data is placed into control data words to specify the 10 words to be transmitted to node 3 in
operating level 0.
@MOV(21)
#8000
DM 0001
DM 000
DM 001
DM 002
00
80
00
0A
00
03
10 words
Node 3 (a PC)
@MOV(21)
#0003
DM 0002
@MOV(21)
#0500
Indirectly addressed beginning destination
word. Beginning destination word in destination node = DM 4000.
DM 0020
@MOV(21)
#4000
DM 020
DM 021
05
40
00
00
DM 0021
XFER(70)
#0010
Transfers the 10 words beginning at IR 000 to
the 10 words beginning at DM 0010.
000
DM 0010
@SEND(90)
DM 0010
DM 0020
DM 0000
12800
25204
DIFU(13)
12800
25203
12801
SEND(90)/RECV(98)
Error Flag
00200
00001
25204
12800
S
KEEP(11)
12802
12803
R
(Continued on the next page)
82
Turns ON to indicate transmission error.
12802 prevents execution of RECV(98) when
SEND(90) above has not completed. IR
00001 is turned ON to start transmission.
Section 6-2
NETWORK READ/WRITE Instructions
(Continued from previous page)
12802
@MOV(21)
#0010
Data moved into control data words to specify
the 16 words to be transmitted from node 4 in
operating level 0.
DM 0003
@MOV(21)
#8000
DM 0004
DM 003
DM 004
DM 005
00
80
00
10
00
04
16 words
Node 4 (a PC)
@MOV(21)
#0004
DM 0005
@MOV(21)
#0500
Indirectly addressed beginning destination
word. Beginning destination word in destination node = DM 5000.
HR 10
HR 10
HR 11
@MOV(21)
05
50
00
00
#5000
HR 11
@RECV(98)
HR 10
LR 10
DM 0003
12802
25204
DIFU(13)
12802
25203
12801
SEND(90)/RECV(98)
Error Flag
00201
12802
25204
Turns ON to indicate reception error.
12800
XFER(70)
#0016
LR 10
Transmitted data moved into words beginning
at DM 0030 for storage.
DM 0030
83
Section 6-2
NETWORK READ/WRITE Instructions
6-2-7 Delay Times
The two charts which follow indicate the sequence of processing which will
enable users to calculate the maximum delay time to be expected between
the time SEND(90) or RECV(98) is executed and the time the data is stored
in the remote or local node’s memory area, ready for use by other instructions in the program.
SEND(90)
The following diagram indicates the data flow which will yield the maximum
delay time from the time SEND(90) is executed by the user program to the time
the SYSMAC LINK Unit stores the data in the destination Unit’s memory.
Note Be sure to take into account the time required for data links and program execution, which are not included in the following example.
SEND(90)
executed
SYSMAC LINK Unit servicing
(source node)
Transmission processing
Communications cycle
Reception processing
SYSMAC LINK Unit servicing
(destination node)
Max. transmission delay
Data stored
Max. transmission delay = LINK Unit servicing interval (source node) +
Transmission processing + Communications cycle time + Reception processing + LINK Unit servicing interval (destination node).
SYSMAC LINK Unit servicing is performed once per PC scan.
Delay cause
Transmission/reception
processing
Communications
Coaxial
cycle time1
Optical
Note
Delay (ms)
No. of words transferred × 0.013 ms + 5 ms
Max. node no. × 0.01 ms + no. of nodes × 0.075 ms
+ no. of polled units × 0.75 ms + 1.322 ms
Max. node no. × 0.01 ms + no. of nodes × 0.133 ms
+ no. of polled units × 0.75 ms + 1.322 ms
1. When the data link is halted. Refer to 5-10-1 Data Link Communications
Cycle Time for details on the communications cycle time when the data link
is operating.
2. The I/O response time might increase due to noise or restrictions on the
number of frames that can be transmitted while the data link is operating.
84
Section 6-2
NETWORK READ/WRITE Instructions
Example
In this example, the maximum transmission delay is calculated for an instruction
sending 256 words of data in a system with 32 nodes. Network specifics are
detailed below:
Max. node number:
Number of nodes:
Number of polled units:
Number of words:
Communications:
Data link:
32
32
4
256
coaxial cable
halted
Delay cause
Maximum delay (ms)
LINK Unit servicing
PC scan time
Transmission processing
8.328 ms
Communications cycle time
7.042 ms
Reception processing
8.328 ms
The maximum transmission delay is thus:
(PC scan time × 2) + 23.698 ms.
The following indicates the data flow which will yield the maximum transfer interval from the time the RECV(98) instruction is executed by the user program to
the time the SYSMAC LINK Unit stores the data in the local Unit’s memory area.
RECV(98) Instruction
Maximum Delay Time
Note Be sure to take into account the time required for data links and program execution, which are not included in the following example.
RECV(98) executed
Data stored
Max. transmission delay
SYSMAC LINK Unit servicing
(source node)
Transmission processing
(command)
Reception processing
(response)
Communications cycle
Reception processing
(command)
Transmission processing
(response)
SYSMAC LINK Unit servicing
(destination node)
Max. transmission delay = LINK Unit servicing interval (source node) +
Transmission processing (command) + Communications cycle + Reception
processing (command) + LINK Unit servicing interval (destination node) +
Transmission processing (response) + Communications cycle + Reception
processing (response) + LINK Unit servicing interval (source node).
SYSMAC LINK Unit servicing is performed once per PC scan.
Delay cause
Transmission/reception
processing (command)
Transmission/reception
processing (response)
Communications
Coaxial
cycle time1
Optical
Delay (ms)
5 ms
No. of words transferred × 0.013 ms + 5 ms
Max. node no. × 0.01 ms + no. of nodes × 0.075 ms
+ no. of polled units × 0.75 ms + 1.322 ms
Max. node no. × 0.01 ms + no. of nodes × 0.133 ms
+ no. of polled units × 0.75 ms + 1.322 ms
85
Section 6-3
CV-mode Command/Response Format
Note
1. When the data link is halted. Refer to 5-10-1 Data Link Communications
Cycle Time for details on the communications cycle time when the data link
is operating.
2. The I/O response time might increase due to noise or restrictions on the
number of frames that can be transmitted while the data link is operating.
Example
In this example, the maximum transmission delay is calculated for an instruction
receiving 256 words of data in a system with 32 nodes. Network specifics are
detailed below:
Max. node number:
Number of nodes:
Number of polled units:
Number of words:
Communications:
Data link:
32
32
4
256
coaxial cable
halted
Delay cause
Maximum delay (ms)
LINK Unit servicing
PC scan time
Transmission processing (command)
5 ms
Reception processing (command)
5 ms
Communications cycle time (× 2)
7.042 ms (× 2)
Transmission processing (response)
8.328 ms
Reception processing (response)
8.328 ms
The maximum transmission delay is thus:
(PC scan time × 3) + 40.74 ms.
6-3
CV-mode Command/Response Format
This section describes the format of commands that can be received from computers or CV-series PCs and the responses that are returned. C-series SYSMAC LINK Units (except models C1000H-SLK21 and C200H-SLK21) can
receive CV-mode (FINS) commands, but cannot transmit commands in this
command/response format because they are not equipped with a COMMAND
instruction (CMND(194) in CV-series PCs).
Unless another format is specifically indicated, all commands and responses
are in hexadecimal. Commands that are sent to the PC CPU Unit differ from
those that are sent to the SYSMAC LINK Unit.
Command Format
Response Format
Commands have the following format:
2 bytes
540 bytes max.
Command
code
Data
Responses have the following format:
2 bytes
01
538 bytes max.
Response
code
Data
01
Command
code
86
2 bytes
Section 6-3
CV-mode Command/Response Format
6-3-1 List of CV-mode Commands for PCs
Command
Name
code
01
PC mode
RUN
MONITOR
Page
PROGRAM
01
MEMORY AREA READ
Valid
Valid
Valid
90
02
MEMORY AREA WRITE
Valid
Valid
Valid
90
04
MULTIPLE MEMORY AREA READ
Valid
Valid
Valid
91
02
02
PARAMETER AREA WRITE
Not valid
Not valid
Valid
92
03
06
PROGRAM AREA READ
Valid
Valid
Valid
92
07
PROGRAM AREA WRITE
Not valid
Not valid
Valid
93
01*
RUN
Valid
Valid
Valid
94
04
02*
STOP
Valid
Valid
Valid
94
05
01*
CONTROLLER DATA READ
Valid
Valid
Valid
95
06
01*
CONTROLLER STATUS READ
Valid
Valid
Valid
95
07
01
CLOCK READ
(C200H/C200Hj only)
Valid
Valid
Valid
97
02
CLOCK WRITE
(C200H/C200Hj only)
Not valid
Valid
Valid
97
21
01
ERROR CLEAR
Valid
Valid
Valid
98
22
0F
Valid
Valid
Valid
98
Valid
Valid
Valid
99
Not valid
Valid
Valid
100
01
FILE MEMORY INDEX READ
(C1000H/C2000H only)
FILE MEMORY BLOCK READ
(C1000H/C2000H only)
FILE MEMORY BLOCK WRITE
(C1000H/C2000H only)
FORCED SET/RESET
Not valid
Valid
Valid
101
02
FORCED SET/RESET CANCEL
Not valid
Valid
Valid
102
0A
FORCED STATUS READ
(C200H/C200j only)
Valid
Valid
Valid
102
10
11
23
Note *These command codes are also used for CV-mode commands sent to SYSMAC LINK Units.
6-3-2 List of CV-mode Commands for SYSMAC LINK Units
Command
Name
code
04
Data link mode
Operating
Page
Halted
01*
START DATA LINK
Not valid
Valid
103
02*
HALT DATA LINK
Valid
Not valid
103
03
RESET
Valid
Valid
104
05
01*
CONTROLLER DATA READ
Valid
Valid
104
06
01*
CONTROLLER STATUS READ
Valid
Valid
105
02
NETWORK STATUS READ
Valid
Valid
107
03
DATA LINK STATUS READ
Valid
Valid
108
01*
INTERNODE ECHO TEST
Valid
Valid
109
02
BROADCAST TEST RESULTS READ
Valid
Valid
110
03
BROADCAST TEST DATA SEND
Valid
Valid
110
08
Note *These command codes are also used for CV-mode commands addressed to
PCs.
87
Section 6-4
Memory Area Designations
6-3-3 CV-mode Response Codes
A 2-byte response code is returned with all responses. The first byte contains the
main code indicating the general category of the response, and the second byte
contains the sub-code giving more specific information. The table below shows
the main codes. Refer to 8-1 Troubleshooting for details on sub-codes.
Main code
6-4
Description
00
Normal completion
01
Source node error
02
Destination node error
03
Controller error
04
Not executable
05
Routing error
10
Command format error
11
Parameter error
20
Read not possible
21
Write not possible
22
Not executable in current PC mode
23
No Unit
24
Start/stop not possible
25
Unit error
26
Command error
30
Access right error
Memory Area Designations
The following table gives the addresses that can be used when reading or writing
PC data. The Data area address column gives the data area addresses normally
used in the PC program. The Address used in communications column are the
PC memory addresses used in CV-mode commands and responses. These
addresses are combined with the memory area codes to specify PC memory
locations. These addresses are not the same as the actual memory addresses
of the data.
The Bytes/item column specifies the smallest increment of data that can be read
or written for that area. The increment will be either words (2 bytes) or bytes (1
byte).
Memory area
Bit status
00000 to 25515
Address used in
communications
000000 to 00FF0F
Word contents
000 to 255
000000 to 00FF00
80
2
Bit status
LR 0000 to LR 6315
03E800 to 04270F
00
1
Word contents
LR 00 to LR 63
03E800 to 042700
80
2
Bit status
HR 0000 to HR 9915
042800 to 048B0F
00
1
Word contents
HR 00 to HR 99
042800 to 048B00
80
2
Bit status
AR 0000 to AR 2715
048C00 to 04A70F
00
1
Word contents
AR 00 to AR 27
048C00 to 04A700
80
2
Completion Flag status
TC 000 to TC 511
000000 to 01FF00
01
1
PV
TC 000 to TC 511
000000 to 01FF00
81
2
DM Area
Word contents
DM 0000 to DM 9999
000000 to 270F00
82
2
EM Area
Word contents
EM 0000 to EM 6143
000000 to 17FF00
90 to 98
2
IR and SR
Link Relay
Holding Relay
Auxiliary Relay
Timer/Counter
Data
Note
88
Data area address
Memory
area code
00
Bytes/
item
1
1. The actual size of memory areas depends on the PC model being used.
Refer to the PC Operation Manual for details on memory area ranges.
Section 6-4
Memory Area Designations
2. The memory area codes for the EM Area are as follows: codes 90 through
97 specify banks 0 through 7 and code 98 specifies the current bank.
6-4-1 Word/Bit Addresses
Each word/bit address specifies a specific bit or word. The rightmost two digits of
the address specify bit 00 to 15 (or 00 if not required), and leftmost four digits
specify the word address.
Specify the bit between 00 and 0F (00 to 15).
Set to 00 to specify word or flag data.
Specify the address of the word or flag.
To obtain the corresponding address of the desired word or bit, add the data area
word address (hexadecimal) to the first address of the range of addresses used
for that data area in communications. For example, the address for word AR 13
is computed as follows:
First address for AR Area;
048C + 0D (13 in BCD);
048C
0499
The word address for AR 13 would thus be 049900 (the memory area code
would specify this as a word) and the address of bit 12 in AR 13 would be
04990C.
6-4-2 Memory Area Code
The memory area code specifies the data area being accessed and whether a
bit or word is being accessed, as shown below.
Bit:
07
06
05
04
03
Access size
00: Bit
10: Word
02
01
00
Memory area designator
00: IR, SR, LR, HR, or AR
01: Timer/counter
02: Data Memory (DM)
If the access size indicates a bit is being accessed, one byte of data will be read
or written. If the access size indicates a word is being accessed, two bytes of
data (one word) will be read or written.
6-4-3 Data Configuration
The configuration of the types of data that can be read or written is shown below.
The number of bytes required for each type of data is also given.
Flag or Bit Status (One Byte) 00: Bit is OFF (0)
01: Bit is ON (1)
Word Contents, PV (Two Bytes)
Bits 0 to 7 (second byte)
Bits 8 to 15 (first byte)
89
Section 6-5
CV-mode Commands for PCs
6-5
CV-mode Commands for PCs
6-5-1 MEMORY AREA READ
Reads the contents of the specified number of consecutive memory area words
starting from the specified word. All words must be in the same memory area
(here, all memory areas with the same memory area code are considered as one
area).
Command Block
01
00
01
Command
First word
code
Memory area code
No. of items
Response Block
01
01
Command
code
Parameters
Response
code
Data
Memory area code (command): The data area to read.
First word (command): The address of the first word to read from memory. Set
the third byte of the First word to 00.
No. of items (command): The number of items to be read. The number of items
must be 0000 to 0100 (0 to 256 decimal). A normal completion response will be
returned even if the number of items is set to 00.
Data (response): The data from the specified words is returned in sequence
starting from the first word. Timer/counter PVs are returned in BCD. The total
number of bytes is calculated as follows:
Bytes/item x No. of items
Memory Areas
The following data can be read (refer to 6-4 Memory Area Designations for PC
word/bit address designations):
Memory area
Data
IR, SR, LR, HR, and AR
Word contents
Memory area Bytes/
code
item
80
2
Timer/Counter
Completion Flag status
01
1
PV
81
2
DM
Word contents
82
2
EM
Word contents
90 to 98
2
6-5-2 MEMORY AREA WRITE
Writes data to the specified number of consecutive words starting from the specified word. All words must be in the same memory area (here, all memory areas
with the the same memory area code are considered as one area).
Note
90
1. The MEMORY AREA WRITE command can be executed regardless of the
PC’s operating mode. It is the user’s responsibility to program steps to prohibit this command from being executed when the PC is in RUN mode if such
protection is necessary. Execute the CONTROLLER STATUS READ command (refer to 6-5-10 CONTROLLER STATUS READ) to read the PC’s
mode.
Section 6-5
CV-mode Commands for PCs
2. When data is written to the Timer/Counter PV Area, the Completion Flags
will be turned OFF (0).
Command Block
01
02
00
Command
First word
code
Memory area code
No. of items
Data
Response Block
01
02
Command
code
Parameters
Response
code
Memory area code (command): The data area to write.
First word (command): The first word to write. Set the third byte of the first word
to 00.
No. of items (command): The number of items to be written. The number of
items must be 0000 to 0100 (0 to 256 decimal). A normal completion response
will be returned even if the number of items is set to 00.
Data (command): The data to be written. Timer/counter PVs are returned in
BCD. The total number of bytes is calculated as follows:
Bytes/item x No. of items
The following data can be written (refer 6-4 Memory Area Designations for the
word/bit address designations):
Memory area
Data
IR, SR, LR, HR, and AR
Word contents
Memory area Bytes/
code
item
80
2
Timer/Counter
PV
81
2
DM
Word contents
82
2
EM
Word contents
90 to 98
2
6-5-3 MULTIPLE MEMORY AREA READ
Reads the contents of the specified non-consecutive memory area bytes or
words. Bytes or words can be read from up to 128 locations.
Note
1. If there is an error in even one memory area code or address, no data will be
read.
2. If EM is specified in the memory area code, the maximum number of locations from which bytes or words can be read will be 100.
Command Block
Up to 128 addresses
01
04
Command
Address
code
Memory area code
Address
Memory area code
91
Section 6-5
CV-mode Commands for PCs
Response Block
01
04
Command
code
Parameters
Response
Data
code
Memory area code
Data
Memory area code
Memory area code (command): The data area to read.
Address (command): The addresses of the words/bits/flags to read.
Data (response): The response returns the memory area code(s) paired with
the data from the specified memory area(s). There will be either one or two bytes
of data per memory area code depending on the access size specified in the
memory area code. Refer to 6-4-2 Memory Area Code for details on access size.
Memory Areas
The following data can be read (refer to 6-4 Memory Area Designations for
memory area designations):
Memory area
Data
Bit status
Memory area Bytes/
code
item
00
1
Word contents
80
2
Completion Flag status
01
1
PV
81
2
DM
Word contents
82
2
EM
Word contents
90 to 98
2
IR, SR, LR, HR, and AR
Timer/Counter
6-5-4 PARAMETER AREA WRITE
Writes data to the parameter area to designate the DM (data memory) size.
Note This command is available only on the SYSMAC C1000HF.
Command Block
02
02
Command
code
80
10
Parameter
code
00
00
First word
80
01
No. of
items
Data
Response Block
02
02
Command
code
Parameters
Response
code
Parameter code (command): 8010 (designate to change the DM size)
First word (command): 0000
No. of items (command): 8001
Data (command): Input 00 to designate a DM size of 4,095 words. If 00 is not
input, a DM size of 10,000 words will be designated.
6-5-5 PROGRAM AREA READ
Reads the contents of the specified number of consecutive program area words
starting from the specified word. The data is read in machine language (object
code level). A maximum of 512 bytes can be read with each command. To read
larger amounts of data, use multiple commands and specify the beginning word
and number of words for each.
92
Section 6-5
CV-mode Commands for PCs
Command Block
03
06
Command
code
00
00
Program
no.
First word
No. of
bytes
Response Block
03
06
Command
code
00
Response
code
Parameters
00
Program
no.
First word
No. of
bytes
Data (512 bytes max.)
Program no. (command and response): Set to 0000.
First word (command and response): The program area begins at 00000000.
The first word must be an even number and will be returned as is in the response.
No. of bytes (command and response): The number of bytes in an even number up to 0100 (512 decimal). Bit 15 will be ON (1) in the response block when the
last word of data from the program area is in the data returned.
In the response, the no. of bytes is the actual number of bytes read.
Bit 15 OFF (0): Without last word data
Bit 15 ON (1): With last word data
Bits 0 to 14: No. of bytes read
Bits 0 to 7 (second byte)
Bits 8 to 15 (first byte)
If the no. of bytes specified in the command exceeds the number of bytes
remaining in the program area, data will be read up to the last word in the program area and an 11 04 or 11 0B parameter error response code will be returned.
Data (response): The data in the specified program area will be returned in
sequence starting from the beginning word.
6-5-6 PROGRAM AREA WRITE
Writes data to the specified number of consecutive program area words starting
from the specified word. The data is written in machine language (object code
level). A maximum of 512 bytes can be written with each command. To write
larger amounts of data, use multiple commands and specify the beginning word
and number of words for each.
Note The PC will generate an index when bit 15 of the no. of bytes is ON, so bit 15 must
be ON when data is written through the last word in the program area. If the no. of
bytes is set to 8000, the PC will just generate an index.
Command Block
03
07
Command
code
00
00
Program
no.
First word
No. of
bytes
Data (512 bytes max.)
Response Block
03
07
Command
code
00
Response
code
00
Program
no.
First word
No. of
bytes
93
Section 6-5
CV-mode Commands for PCs
Parameters
Program no. (command and response): Set to 0000.
First word (command and response): The program area begins at 00000000.
The first word must be an even number and will be returned as is in the response.
No. of bytes (command and response): The number of bytes in an even number up to 0200 (512 decimal). Bit 15 must be ON (1) when data is written to the
last word in the program area.
In the response, the no. of bytes is the actual number of bytes read.
Bit 15 OFF (0): Without last word data
Bit 15 ON (1): With last word data
Bits 0 to 14: No. of bytes written
Bits 0 to 7 (second byte)
Bits 8 to 15 (first byte)
Data (command): The data to be written.
6-5-7 RUN
Changes the PC to MONITOR or RUN mode, enabling the PC to execute its program.
Command Block
04
01
Command
code
Program
no.
Mode
Response Block
04
01
Command
code
Parameters
Response
code
Program no. (command): Set to 0000.
Mode (command): As follows:
0002:
MONITOR mode
0004:
RUN mode
Note If the mode is not specified, the PC will go to MONITOR mode.
6-5-8 STOP
Changes the PC to PROGRAM mode, stopping program execution.
Command Block
04
02
Command
code
Response Block
04
02
Command
code
94
Response
code
Section 6-5
CV-mode Commands for PCs
6-5-9 CONTROLLER DATA READ
Reads the following data:
• PC model and version
• Area data
• PC status
Command Block
05
01
Command
code
Response Block
05
01
Command
code
Parameters
Response
code
20 bytes
20 bytes
16 bytes
10 bytes
PC model
PC version
All zeroes
Area data
65 bytes
All zeroes
PC status
PC model and version (response):
Both are read in ASCII codes (20 bytes (i.e. 20 ASCII characters) max. each). If
the model or version requires less than 20 characters, the remaining bytes will
be filled with spaces (ASCII code 20).
For the C1000H and C2000H, the version is returned for the MPU1 first followed
by the version for the MPU2. If a version does not required 20 characters, the
remaining bytes will be filled with spaces (ASCII code 20) for each.
All zeroes (response): These bytes contain zeroes.
Area data (response): As follows:
1st byte
10th byte
00
00
00
No. of DM words
Program
area size
Item
EM bank number
File memory
size
Kind of file memory
Meaning
Unit
Program area size
The size of PC Setup and program area
K words (1K words = 1,024 words)
No. of DM words
Total words in the DM area
Words
EM bank number
Extended Data Memory (EM) Area bank number
Bank
Kind of file memory
00: No file memory
01: SPRAM
04: First half RAM, second half ROM
---
File memory size
0000: 0 (no file memory)
0001: 1000
0002: 2000
Blocks
PC status (response): The value of the byte returned indicates whether or not a
Peripheral Device is connected.
00: No Peripheral Device connected.
80: Peripheral Device connected.
6-5-10 CONTROLLER STATUS READ
Reads the status of the PC.
95
Section 6-5
CV-mode Commands for PCs
Command Block
06
01
Command
code
Response Block
06
16 bytes
01
Command
code
Response
code
Fatal error
data
Non-fatal
error data
FAL no.
Error
message
Status Mode
Parameters
Status (response): The operating status of the PC as follows:
00: Stop (program not being executed)
01: Run (program being executed)
80: CPU Unit on standby (the start switch is OFF or the CPU Unit is waiting
for a Slave Rack to turn ON).
Mode (response): One of the following PC modes:
00: PROGRAM
02: MONITOR
04: RUN
Fatal error data (response): The information contained in the fatal error data is
shown below. Refer to the PC’s Operation Manual for details on fatal errors.
Bit
15
14
13
12
0
0
11
10
9
8
7
0
0
0
6
5
4
3
2
1
0
0
0
0
0
0
0
1: FALS error
1: I/O setting error
1: I/O point overflow
1: I/O bus error
1: Memory error
Non-fatal error data (response): The information contained in the non-fatal
error data is shown below. Refer to the PC’s Operation Manual for details on
non-fatal errors.
Bit
15
14
13
12
11
10
0
0
0
0
0
9
8
7
6
0
0
5
4
3
2
0
0
1
0
1: PC Link error
1: Host Link error
1: Battery error
1: Remote I/O error
1: Special I/O Unit error
1: I/O verification error
1: FAL error
FAL no. (response): The second byte contains the FAL or FALS number of the
highest priority error that has occurred in BCD. The first byte contains 00. The
FAL no. range is therefore 00 to 99.
If neither an FAL nor an FALS error has occurred, the FAL no. will be 0000.
Error message (response): The error message of the present FAL number.
The error message will be up to 16 ASCII characters. If there is no error message, the response will be shortened.
96
Section 6-5
CV-mode Commands for PCs
6-5-11 CLOCK READ
Reads the clock. This command can be used with the C200H, C200HS,
C200HX, C200HG, and C200HE PCs only.
Command Block
07
01
Command
code
Response Block
07
01
Command
code
Parameters
Response
code
Year Month Date Hour Minute Second Day
Year, month, date, hour, minute, second, day (response): Each value is
expressed in BCD.
Year: The rightmost two digits of the year.
Hour: 00 to 23.
Day: As follows:
Value
Day
00
Sun
01
02
03
04
Mon
Tues
Wed
Thur
05
Fri
06
Sat
6-5-12 CLOCK WRITE
Sets the clock. This command can be used with the C200H, C200HS, C200HX,
C200HG, and C200HE PCs only.
Command Block
07
02
Command
Year Month Date Hour Minute Second Day
code
Response Block
07
02
Command
code
Parameters
Response
code
Year, month, date, hour, minute, second, day (command): Each specified
value is expressed in BCD.
Year: The rightmost two digits of the year.
Hour: Specify 00 to 23.
Day: As follows:
Value
Day
00
Sun
01
02
03
04
Mon
Tues
Wed
Thur
05
Fri
06
Sat
97
Section 6-5
CV-mode Commands for PCs
6-5-13 ERROR CLEAR
Clears errors from the PC.
Command Block
21
01
Command
code
FF
FF
Error reset
Response Block
21
01
Command Response
code
code
Parameters
Error reset (command): The code must be FFFF.
6-5-14 FILE MEMORY INDEX READ
Reads out the indices of a specified number of blocks stored in file memory. This
command can be used with the C1000H and C2000H only.
Command Block
22
0F
Command
code
Beginning
block no.
No. of
blocks
Response Block
Index for
first block
22
0F
Command Response Remaining Total no.
code
code
no. of blocks of blocks
Kind of file
memory
Parameters
Index for
last block
Kind of
data
No. of
comments
Kind of
data
No. of
comments
Beginning block no. (command): The first block to be read. The beginning
block no. must be between 0000 and 03E7 (0 to 999 decimal) for 1000 block file
memory, or 0000 and 07CF (0 to 1999 decimal) for 2000 block file memory.
No. of blocks (command): The number of blocks to be read. The no. of blocks
must be between 01 and 80 (0 to 128 decimal).
Remaining no. of blocks (response): The number of blocks remaining after
the read. The remaining no. of blocks will be between 0000 and 07CF (0 to 1999
decimal).
Total no. of blocks (response): The number of blocks in the file memory. The
total no. of blocks will be between 0000 (0), 03E8 (1000), or 07D0 (2000).
Kind of file memory (response): The kind of file memory installed, as follows:
00: All RAM
01: First half RAM, second half ROM
98
Section 6-5
CV-mode Commands for PCs
Kind of data (response): The kind of data in this block, as follows:
Bit
7
6
5
4
3
0
0
0
2
1
0
Kind of data (see table below)
1: Protected
1: Block contains END(01)
(program data only)
Kind of data
Bits 0 to 2 indicate the kind of data, as shown in the following table.
Bit status
2
1
0
Kind of data
0
0
0
None
0
0
1
I/O data
0
1
0
Program
0
1
1
Comments
No. of comments (response): If the block contains comments data, this byte
indicates the number of comments.
6-5-15 FILE MEMORY BLOCK READ
Reads the contents of the indicated block of file memory. This command can be
used with the C1000H and C2000H only.
Command Block
22
10
Command
code
Block no.
Response Block
22
256 bytes
10
Command Response
Kind of
code
code
data
No. of
comments
Parameters
Block data
Block no. (command): The block number of the block to be read. The block no.
must be between 0000 and 03E7 (0 to 999 decimal) for 1000 block file memory,
or 0000 and 07CF (0 to 1999 decimal) for 2000 block file memory.
Kind of data (response): The kind of data in the block, as follows:
Bit
7
6
5
4
3
0
0
0
2
1
0
Kind of data (see table below)
1: Protected
1: Block contains END(01)
(program only)
99
Section 6-5
CV-mode Commands for PCs
Kind of data
Bits 0 to 2 indicate the kind of data, as shown in the following table.
Bit status
2
1
0
Kind of data
0
0
0
None
0
0
1
I/O data
0
1
0
Program
0
1
1
Comments
No. of comments (response): If the block contains comments data, this byte
indicates the number of comments.
Block data (response): The 256 bytes of data from the indicated block.
6-5-16 FILE MEMORY BLOCK WRITE
Writes the 256 bytes of data in the command to the indicated block of file
memory. This command can be used with the C1000H and C2000H only.
Command Block
22
11
256 bytes
Command
Block no.
Kind of
code
data
No. of
comments
Data
Response Block
22
11
Command
code
Parameters
Response
code
Kind of data (command): Indicate the kind of data in the block, as follows:
Bit
7
6
5
4
3
0
0
0
2
1
0
Kind of data (see table below)
1: Protected
1: Block contains END(01)
(program only)*
Kind of data
Bits 0 to 2 indicate the kind of data, as shown in the following table.
Bit status
2
1
0
Kind of data
0
0
1
I/O data
0
1
0
Program
0
1
1
Comments
Note *Turn bit 7 ON when the block contains the END(01) instruction or the
block is the last.
100
Section 6-5
CV-mode Commands for PCs
No. of comments (command): If the block contains comments data, indicate
the number of comments in this byte.
Block no. (command): The block number of the block to which data will be written. The block no. must be between 0000 and 03E7 (0 to 999 decimal) for 1000
block file memory, or 0000 and 07CF (0 to 1999 decimal) for 2000 block file
memory.
Data (command): The 256 bytes of data that will be written to the indicated
block.
6-5-17 FORCED SET/RESET
Force-sets (ON) or force-resets (OFF) bits/flags or releases forced status. Bits/
flags that are forced ON or OFF will remain ON or OFF and cannot be written to
until the forced status is released, e.g., by using this command.
Command Block
23
01
Command
No. of
code
bits/flags
Set/Reset
specification
Bit/flag
Set/reset
specification
Memory area code
Bit/flag
Memory area code
Forced set/reset data
Forced set/reset data
Response Block
23
01
Command
code
Parameters
Response
code
No. of bits/flags (command): The number of bits/flags to be forced set/reset or
released.
Set/Reset specification (command): The action to be taken for each bit/flag
Value
Note
Name
0000
Force-reset (OFF)
0001
Force-set (ON)
8000
Forced status released and bit turned OFF (0)
8001
Forced status released and bit turned ON (1)
FFFF
Forced status released
1. In the C1000H and C2000H, only the Force-reset (0000) and Force-set
(0001) actions can be specified. Furthermore, only one bit can be force set/
reset at a time. If force set/reset data for more than one bit is included in the
command, only the last bit will be force set/reset. The forced status of the
other bits/flags in the command will be released.
2. In the C200H/C200Hj, two or more bits can be force set/reset. (Forced status will be maintained unless a forced status release action is performed.)
3. The Forced status released and bit turned OFF (8000) and Forced status
released and bit turned ON (8001) actions cannot be performed on timer/
counter Completion Flags. If these actions are specified, they revert to the
Force-reset (0000) and Force-set (0001) actions, respectively.
Memory area code (command): The memory area of the bit or flag to be controlled.
Bit/Flag (command): The bit or flag to be controlled.
101
Section 6-5
CV-mode Commands for PCs
Memory Areas
The bits (flags) in the following memory areas can be forced set/reset or
released (refer to 6-4 Memory Area Designations for memory area designations):
Memory area
Data
IR, SR, LR, HR, and AR
Bit status
Memory area Bytes/
code
item
00
1
Timer/Counter
Completion Flag status
01
1
Only the number of bits/flags indicated in No. of bits/flags will be forced set/reset
or released.
6-5-18 FORCED SET/RESET CANCEL
Cancels all bits (flags) that have been forced ON or forced OFF.
Command Block
23
02
Command
code
Response Block
23
02
Command
code
Response
code
6-5-19 FORCED STATUS READ
Reads the forced status of a specified number of consecutive memory area
words or Timer/Counter Completion Flags starting from the specified word or
flag. All words must be in the same memory area (here, all memory areas with
the same memory area code are considered as one area). This command can
be used with the C200H, C200HS, C200HX, C200HG, and C200HE PCs only.
Command Block
23
0A
Command
First
code
word/flag
Memory area code
No. of items
Response Block
23
0A
Command
code
Parameters
102
Response
First
code
word/flag
Memory area code
No. of items
Data
Memory area code (command and response): The data area to read forced
status.
First word/flag (command and response): The address of the first word or
flag whose forced status will be read.
Section 6-6
CV-mode Commands for SYSMAC LINK Units
No. of items (command and response): The number of items to be read. The
number of items must be 0001 to 0040 (1 to 64 decimal).The forced status of up
to 64 consecutive words or 512 flags can be read.
Data (response): The forced status data from the specified words or flags is
returned in sequence starting from the first word/flag. The total number of bytes
is calculated as follows:
Bytes/item x No. of items
When a bit is ON in the forced status data returned in the response, the status of
the corresponding bit or flag has been forced (either force-set or force-reset).
When a bit is OFF in the forced status data, the status of the corresponding bit or
flag has not been forced.
Memory Areas
The following data can be read (refer to 6-4 Memory Area Designations for PC
word/bit address designations):
Memory area
6-6
Forced status data
IR, SR, LR, HR, and AR
Word
Memory area Bytes/
code
item
80
2
Timer/Counter
Completion Flag
01
1
CV-mode Commands for SYSMAC LINK Units
6-6-1 DATA LINK START
Activates data links in the SYSMAC LINK Network.
This command will be completed normally when link words are allocated automatically or via data link tables only.
Command Block
04
01
Command
code
Response Block
04
01
Command
code
Response
code
6-6-2 DATA LINK HALT
Stops data links in the SYSMAC LINK Network.
This command will be completed normally when the data link is in operation. If
the data link is not in operation, an error will occur.
Command Block
04
02
Command
code
103
Section 6-6
CV-mode Commands for SYSMAC LINK Units
Response Block
04
02
Command
code
Response
code
6-6-3 RESET
Resets the SYSMAC LINK Unit.
No response is returned when this command is executed.
Command Block
04
03
Command
code
6-6-4 CONTROLLER DATA READ
Reads the following data from the SYSMAC LINK Unit:
• Model and version
• Type of cable (coaxial or optical fiber)
• RAM size
• Node number
Command Block
05
01
Command
code
Response Block
05
01
Command
code
Parameters
104
Response
code
20 bytes
20 bytes
Model
Version
Node
number
Cable type, RAM size
Model and version (response):
Both the SYSMAC LINK Unit’s model and version are read in ASCII codes (20
bytes (i.e., 20 ASCII characters) max. each). If the model or version requires
fewer than 20 characters, the remaining bytes will be filled with spaces (ASCII
code 20).
Section 6-6
CV-mode Commands for SYSMAC LINK Units
Cable type and RAM size (response): The type of cable being used and the
size of the RAM buffer in the controller are provided as follows:
Bit
7
6
5
4
3
0
0
0
0
Cable type
0: Coaxial
1: Optical fiber
2
1
0
RAM size (see table below)
Bit status
2
1
0
RAM size
0
1
0
4K bytes (C200HW-SLK13/23)
0
1
1
8K bytes (C1000H-SLK11/SLK21-V1)
1
0
0
16K bytes (C200HW-SLK14/24)
Node number (response): The value of the byte returned indicates the Unit’s
node number in 2-digit hexadecimal. The node number range is 01 to 3E (1 to 62
decimal).
6-6-5 CONTROLLER STATUS READ
Reads the status of the SYSMAC LINK Unit.
Command Block
06
01
Command
code
Response Block
06
5 bytes
01
Command
code
Response
code
00
Current
status
8 bytes
8 bytes
Event
occurrences
Member
node list
Data link status
Parameters
Data link status (response): The operating status of the data link as follows:
00: Halted
01: Active
Current status (response): These five bytes provide information on the current
status of the Unit.
First byte:
Bit
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
Test operating status:
0: Stopped
1: Active
105
Section 6-6
CV-mode Commands for SYSMAC LINK Units
Second byte:
Bit
7
6
5
4
0
0
0
0
3
2
1
0
0
0
0
Power supply status:
0: No power
1: Power supplied
Third byte:
Bit
7
6
5
4
3
0
0
0
0
0
2
1
0
1: Node number range error
1: Node number duplication error
1: Network parameter mismatch error
A network parameter mismatch error occurs when the parameters set in the
Unit at initialization do not match those of the currently operating network.
The network parameters will be reset automatically.
Fourth byte:
Bit
7
6
0
5
4
3
0
0
2
1
0
1: Communications controller watchdog timer error
1: Communications controller memory error
1: Communications controller chip bad
1: Communications controller transmitter bad
1: Local node internode echo test error
Fifth byte:
Bit
7
6
5
4
0
0
0
3
2
1
0
0
1: Network parameter error
1: Data link table error
1: System setup error
1: EEPROM error
Event occurrences (response): These eight bytes indicate how many times
the following events have occurred. Each number is 2-digit hexadecimal, so 00
to FF (0 to 255 decimal) occurrences can be recorded. If an event occurs more
than 255 times, the number will remain at 255.
First byte:
CRC errors
Second byte: Token retransmission
Third byte:
Token rejections
Fourth byte: Token passing time outs
Fifth byte:
Polling time outs
Sixth byte:
Polling unit changes
Seventh byte: Member node changes
Eighth byte: Communication controller data transfer stops
106
Section 6-6
CV-mode Commands for SYSMAC LINK Units
Member node list (response): These eight bytes indicate which node numbers
are members of the network. When a bit in the following matrix is ON, the corresponding node is in the network. Bits 6 and 7 of the eighth byte are always OFF.
Bit
7
6
5
4
3
2
1
0
First byte
8
7
6
5
4
3
2
1
Second byte
16 15 14 13 12 11 10 9
Third byte
24 23 22 21 20 19 18 17
Fourth byte
32 31 30 29 28 27 26 25
Fifth byte
40 39 38 37 36 35 34 33
Sixth byte
48 48 46 45 44 43 42 41
Seventh byte
56 55 54 53 52 51 50 49
Eighth byte
-
-
62 61 60 59 58 57
6-6-6 NETWORK STATUS READ
Reads the status of the SYSMAC LINK Network.
Command Block
06
02
Command
code
Response Block
06
31 bytes
02
Command
code
Response
code
8 bytes
Network Communications
member data cycle time
62 bytes
Cyclic
Cyclic error
continuation errors
log
Current polling unit
node number
Cyclic
transmission status
Cyclic operation
Parameters
Network member data (response): Four bits are allocated to each node number to provide information on the status of nodes in the network as shown below.
The function of each of the 4 bits is shown in the diagram following the table.
Byte
Bits 4 to 7
Bits 0 to 3
Byte 1
Node number 2
Node number 1
Byte 2
Node number 4
Node number 3
Byte 3
Node number 6
Node number 5
Byte 31
Node number 62
Node number 61
Bit
3/7 2/6 1/5 0/4
0
1: In network (0: Not in network)
1: Exited because of an error.* (0: Normal exit)
1: Unit does not respond to polling.
107
Section 6-6
CV-mode Commands for SYSMAC LINK Units
Note *Bit 1/5 is used to indicate why the node is not in the network when bit 0/4 is OFF.
Communications cycle time (response): The actual communications cycle
time is provided here in 4-digit hexadecimal in increments of 100 ms.
Current polling unit node number (response): The node number of the unit
that currently is the polling unit.
Cyclic operation (response): Indicates the current status of cyclic operation,
as follows:
00: Stopped
01: Active
Cyclic transmission status (response): Indicates the current status of cyclic
transmission, as follows:
00: No transmission
01: Transmission
Cyclic continuation errors (response): These eight bytes indicate nodes in
which non-fatal errors occurred in cyclic transmission. When a bit in the following
matrix is ON, a non-fatal error occurred in the corresponding node. Bit 0 of the
first byte and bit 7 of the eighth byte are always OFF.
Bit
7
6
5
4
3
2
1
0
First byte
7
6
5
4
3
2
1
-
15 14 13 12 11 10 9
8
Second byte
Third byte
23 22 21 20 19 18 17 16
Fourth byte
31 30 29 28 27 26 25 24
Fifth byte
39 38 37 36 35 34 33 32
Sixth byte
47 46 45 44 43 42 41 40
Seventh byte
55 54 53 52 51 50 49 48
Eighth byte
-
62 61 60 59 58 57 56
Cyclic error log (response): One of these 62 bytes is allocated to each node to
indicate how many cyclic errors occurred since start-up. The first byte is allocated to node number 1, the second to node number 2, etc. Each number is
2-digit hexadecimal, so 00 to FF (0 to 255 decimal) errors can be recorded for
each node. If more than 255 errors occur, the number will remain at 255.
6-6-7 DATA LINK STATUS READ
Reads the status of the data link.
The various data link status information described here will not be updated while
the data link is halted.
Command Block
06
03
Command
code
Response Block
06
Command
code
108
31 bytes
03
Response
Present
Max.
code
refresh time refresh time
Status flags
Data link
status
Section 6-6
CV-mode Commands for SYSMAC LINK Units
Parameters
Status flags (response): This byte contains flags providing information on
overall data link status, as follows:
Bit
7
6
5
4
3
2
0
0
0
0
1
0
1: Data link table error
1: No data link table
1: Automatic link word allocation
(0: Allocation via data link tables)
1: Data link is active.
(0: Data link is halted.)
Present and Max. refresh time (response): The present and maximum data
link refresh times in 4-digit hexadecimal in increments of 1 ms. The range is 0005
to 00FF (5 to 255 ms, in decimal).
Data link status (response): Four bits are allocated to each node number to
provide information on the status of the data links, as shown below. The function
of each of the 4 bits is shown in the diagram following the table.
Byte
Bits 4 to 7
Bits 0 to 3
Byte 1
Node number 2
Node number 1
Byte 2
Node number 4
Node number 3
Byte 3
Node number 6
Node number 5
Byte 31
Node number 62
Node number 61
Bit
3/7 2/6 1/5 0/4
1: PC is in RUN or MONITOR mode
1: PC is stopped because a fatal error has occurred.
1: Not in network or communication error has occurred.
1: Data link is active.
6-6-8 INTERNODE ECHO TEST
Performs an internode echo test with the indicated node.
Command Block
08
01
Command
code
512 bytes max.
Test data
Response Block
08
Command
code
Parameters
512 bytes max.
01
Response
code
Test data
Test data (command and response): Up to 512 byte of test data can be
included in the command. This data is transmitted to the indicated node and
returned unchanged if communications are normal. If the data returned in the
109
Section 6-6
CV-mode Commands for SYSMAC LINK Units
response differs from that transmitted in the command, an error occurred in the
internode echo test.
6-6-9 BROADCAST TEST RESULTS READ
Reads the results (number of receptions for each node) of the broadcast tests
carried out using the BROADCAST TEST DATA SEND command. Refer to
6-6-10 BROADCAST TEST DATA SEND for details on that command.
Command Block
08
02
Command
code
Response Block
08
02
Command
code
Parameters
Response
code
Number of
receptions
Number of receptions (response): The number of times that the BROADCAST TEST DATA SEND command has been executed since the last BROADCAST TEST RESULTS READ command was executed.
When this command is executed, the number of receptions data stored in the
destination nodes is cleared. If the number of receptions does not equal the
number of times that the BROADCAST TEST DATA SEND command has been
executed since the last BROADCAST TEST RESULTS READ command was
executed, an error has occurred.
6-6-10 BROADCAST TEST DATA SEND
Sends the test data in the command to all nodes in the specified network. No
response will be returned when this command is executed, but reception of the
test data can be verified by executing the BROADCAST TEST RESULTS READ
command. Refer to 6-6-9 BROADCAST TEST RESULTS READ for details.
Command Block
08
03
Command
code
512 bytes max.
Test data
Note Make the following control data settings when executing this command:
a) Destination node number:
FF (broadcast transmission)
b) Destination node unit number:
FE (to SYSMAC LINK Units)
c) Response Flag (bit 13 of C+1): ON (response not returned)
110
SECTION 7
Special Services
Information on remote programming and monitoring and RAS functions is provided in this section.
7-1
7-2
Remote Programming and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RAS Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-2-1 Internode Echo Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-2-2 Broadcast Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-2-3 Polling Unit Backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-2-4 Failed Node Bypass (Optical Networks Only) . . . . . . . . . . . . . . . . . . . . . . . . . . .
112
113
113
115
115
116
111
Section 7-1
Remote Programming and Monitoring
7-1
Remote Programming and Monitoring
Any C200HX, C200HG, C200HE, C200HS, C200H, C1000H, or C2000H
(simplex) PC on a SYSMAC LINK Network can be remotely programmed and
monitored using a SSS/CVSS connected to any other PC on the network.
C2000H Duplex PCs cannot be remotely programmed and monitored
through the SYSMAC LINK Network. Remote programming or monitoring of
the CVM1 and CV-series PCs is not possible.
Peripheral Device
Connection
The SSS is connected to C-series PCs via a C500-IP004 or C200H-IP006/007
Peripheral Interface Unit and can provide remote programming and monitoring
capability for PCs in the same Network. In addition, the CVSS (CV Support Software, see note following diagram) running on an IBM-PC/AT or compatible can
be used. The abbreviations in the diagram below indicate the following OMRON
products:
SLK: SYSMAC LINK Unit
NSB: SYSMAC LINK Network Service Board
IP:
Peripheral Interface Unit or Conversion Cable
IP
PC
PC
PC
SLK
SLK
SLK
SLK
NSB
PC
Computer
SSS
Note When the C- and CV-series PCs are in the same system configuration, CVSS on
an IBM-PC/AT or compatible can be used.
Remote Communications
Limits
112
The SSS can provide remote programming and monitoring capability for all PCs
in the same Network. If the SSS is connected to a PC that is part of two Networks,
i.e., one that has two SYSMAC LINK Units mounted to it, then remote programming and monitoring are possible for any PC in either Network.
Section 7-2
RAS Functions
The SSS can only access PCs within the Network of which the PC it is connected to is a part. In the following diagram SSS A is attached to PC 1 and
can remotely program and monitor PCs 1, 2, 3, 4, 5, 6, 7, and 8. SSS B is
attached to PC 2 and can program and monitor only PCs 1, 2, 3, and 4.
SSS
A
PC (1)
PC (2)
PC (3)
SLK
SLK
SLK
SLK
PC (4)
SSS
B
SLK
7-2
SLK
SLK
SLK
PC (5)
PC (6)
PC (7)
RAS Functions
RAS is an acronym for Reliability, Availability, and Serviceability, and the RAS
functions are intended to promote these three elements in the SYSMAC LINK
Network.
7-2-1 Internode Echo Test
The internode echo test involves transmitting data to a specific node and
requesting the node to send back the data that was sent. The results of the
test are stored in the IR area. The internode echo test can also be executed
with a CV-mode command. Refer to 6-6-8 INTERNODE ECHO TEST for
details.
Internode Test Functions
1, 2, 3...
Data Preparations
Internode Testing functions in the following manner:
1. Test data is transmitted to a specified node.
2. The specified node returns the test data unaltered.
3. The original test data is compared to the data which was echoed back. If
there is any discrepancy, an error code is generated.
Using the Programming Console, set the node number of the destination PC in
IR 23200 to IR 23207 for the C1000H/C2000H, IR 04000 to IR 04007 for the
C200H, and IR 50000 to IR 50007 for the C200HS, C200HX, C200HG, or
C200HE.
The node number must be between 1 and 62 ($01 to $3E) and can be
changed during the test. Do not set the node number to the local node’s node
number or $00 (broadcast mode).
113
Section 7-2
RAS Functions
Internode Test Execution
The test is initiated by moving the node number of the destination PC to IR 232
(IR 040 in the C200H and IR 500 in the C200HS, C200HX, C200HG, or
C200HE) and then turning ON pin 1 of DIP switch 1. The overall procedure is
listed below.
The PC that is initiating the test must be in PROGRAM mode. The PC receiving the transmission may be set in any mode.
The overall procedure for the test is as follows:
1, 2, 3...
Test Results
1.
2.
3.
4.
5.
Set the PC to PROGRAM mode.
Input the node number of the destination PC.
Turn ON pin 1 of DIP switch 1.
Check test results via indicators and/or returned data.
To test another node, change the destination node number and check
results for the new node.
6. Turn OFF pin 1 of DIP switch 1.
Test results are indicated both on the Unit indicators and stored in the IR area.
The TS indicator displays the results of the test for each node.
Lit: . . . . . . . . . . Testing in progress
Flashing: . . . . . Testing error
Not lit: . . . . . . . Test halted
The table below shows the results of the tests which will be stored in the IR
area of the PC which initiated the test.
IR 500
IR 040
C1000H/
C2000H
IR 232
IR 501
IR 041
IR 233
Number of test cycles
IR 502
IR 042
IR 234
Number of errors
IR 503
IR 043
IR 235
Number of times not able to transmit Test status
IR 504
IR 044
IR 236
Number of no responses
Number of busy responses
IR 505
IR 045
IR 237
Number of no-token time-outs
Number of data mismatches
C200Hj
C200H
Bits 00 to 07
Destination node number
Bits 08 to 15
* (07)
Set to zero.
* Bit 07 will be turned ON when the destination node number designation is incorrect.
Number of test cycles is the total number of data packets sent and echoes
received.
Number of errors is the total number of errors.
Test status is as follows.
15
14
13
12
11
10
09
08
Normal completion (0), Error (1)
Destination node not part of Network (1)
Token time-out (1)
Data mismatch (1)
Local node not part of Network* (1)
No response (1)
Destination node busy (1)
Not able to transmit (1)
Note *This error will occur when the communications chip is faulty, there is a node
number setting error, or node number duplication error.
114
Section 7-2
RAS Functions
Number of times not able to transmit is the number of times transmission
was impossible because the destination node or the local node were not part
of the Network, or node did not have the right to transmit.
Number of busy responses is number of times the node was unable to
transmit because destination node was busy.
Number of no responses is the number of times the destination node did
not respond.
Number of data conflicts is number of times test data did not match data
echoed back.
Number of token time-outs is the number of times transmission was impossible because the node did not receive the token giving it polling unit status.
Note
1. Responses are monitored for two seconds.
2. When the destination node number is changed in IR 232 (IR 040 in the
C200H and IR 500 in the C200HX, C200HG, C200HE, or C200HS), the test
results in IR 233 to IR 237 (IR 041 to IR 045 in the C200H and IR 505 in the
C200HX, C200HG, C200HE, or C200HS) will be initialized.
7-2-2 Broadcast Test
The broadcast test transmits data to all nodes in the network simultaneously and
then reads the results (number of receptions for each node) of the test. The
broadcast test can also be executed with CV-mode commands. Refer to 6-6-10
BROADCAST TEST DATA SEND for details.
Broadcast Test Execution
The test can be executed with a SSS/CVSS. Refer to the Peripheral Device’s
Operation Manual for details.
The test proceeds as follows:
1, 2, 3...
1. The test data is transmitted to all nodes the specified number of times.
2. The number of receptions at each node is read out.
3. The test results (the number of transmissions and successful receptions)
are displayed.
7-2-3 Polling Unit Backup
SYSMAC LINK Units provide an automatic backup function. In case of a failure or error in the SYSMAC LINK Unit which is currently the polling unit, the
Network is automatically restructured. The lowest numbered functional node
within the Network becomes the new polling unit, and the Network continues
to function.
While the Network is restructuring itself, all data transmission stops. If the
data link was operational when the polling unit failed, data is saved in the
state it was just prior to the failure and data link operations will continue.
The time required to restructure the Network in the event of an error or failure
may be calculated using the following formula:
Restructuring time =
(new polling unit node number + 1) x 20 ms + highest node number x 1 ms
115
Section 7-2
RAS Functions
7-2-4 Failed Node Bypass (Optical Networks Only)
SYSMAC LINK Networks using optical fiber cable and equipped with a
back-up power supply and Power Supply Units have an automatic bypass
function. If a failure or error occurs in a node of the network, that node will be
bypassed, and the rest of the network will continue functioning.
In the example shown below, node 3 fails, but communications continue by
bypassing node 3. The abbreviations in the diagram below indicate the following OMRON products:
SLK:
APS:
SYSMAC LINK Unit (optical type)
Auxiliary Power Supply Unit
Optical transmission path
SLK
(node #1)
SLK
(node #2)
SLK
(node #3)
SLK
(node #4)
APS
APS
APS
APS
PC
PC
PC
PC
Node #3 fails
Backup power supply
The following table shows which Auxiliary Power Supply Units can be used
with the SYSMAC LINK Units.
SYSMAC LINK Unit
! Caution
116
Auxiliary Power Supply Unit
C1000H-SLK11
C1000H-APS01
C200HW-SLK13/14
C200H-APS03
In an optical network, power supplied from the Power Supply Unit that is connected to each node will have precedence over power supplied from the back-up
Power Supply Unit of the system. Be sure to turn on the Power Supply Units and
the PCs simultaneously, or turn on the Power Supply Units first and then turn on
the PCs. If the Power Supply Units are turned on or off, a transmission data error
will result.
SECTION 8
Error Processing
Information to help identify and correct errors that might occur is provided in this section.
8-1
8-2
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
118
124
117
Section 8-1
Troubleshooting
8-1
Troubleshooting
Error Indications
The table below lists error conditions, their probable cause, and possible remedies.
Error indicator
RUN indicator not
lit
ERC indicator lit
Probable cause
Remedy
SYSMAC LINK Unit faulty.
Replace Unit.
PC not connected to power supply.
Connect to power supply (check connectors).
PC’s power supply voltage too low.
Adjust voltage to within recommended range.
SYSMAC LINK Unit mounting screws are loose.
Tighten screws.
SYSMAC LINK Unit mounted in wrong slot.
Move Unit to correct slot.
PC faulty.
Replace PC.
Node address
setting
i is
i
incorrect.
Not between 1 and 62
Duplicated setting
Communications Controly
ler is faulty.
Hardware problem in the
communications part of the
Unit.
Power supply Power Supply
se
ec o
selection
Unit is faulty.
circuit is
Power supply
unstable.
section of the
Unit is faulty.
Connectors
are broken or
have poor
contact.
External
power supply
has dropped.
ERH indicator lit
INS indicator not lit
Set the node address to between 1 and 62.
Set the node addresses again so that each
address is used only once and then restart.
Replace the SYSMAC LINK Unit.
Replace the Power Supply Unit.
Replace the SYSMAC LINK Unit.
Check connectors and replace them if
necessary.
Check the primary side of the Power Supply
Unit.
Unit mounted to faulty PC.
Replace PC.
Unit mounted to incompatible PC.
Replace PC.
EEPROM error.
Re-initialize network parameters and data link
tables or replace Unit.
Watchdog timer error in PC.
Replace PC.
Terminator connection faulty.
Connect Terminator correctly.
Cable connection faulty.
Connect cables correctly.
Local node’s node number greater than the
maximum node number set in the polling unit’s
network parameters.
Increase the maximum node number or
decrease the local node number.
LNK indicator flash- Data link table error on local node.
ing
Re-create data link table.
Error when reading EEPROM.
Re-create data link table or replace PC.
Data link table of currently operating node and
data link table of the local node don’t match.
Stop data link and modify the data link table of
either the currently operating node or the local
node so they match.
Local node has no data link table.
Create a data link table.
Note Node numbers cannot be modified with the power on. To change node numbers,
first turn off the power, then change the settings, making sure not to duplicate
any node numbers.
118
Section 8-1
Troubleshooting
Send (90)/RECV(98) Errors
Response code
00: Normal
completion
01: Parameter
error
02: Unable to
transmit
03: Destination
node not in
Network
The table below lists response codes returned after execution of the SEND(90)
and RECV(98) instructions, the probable cause of errors, and recommended
remedies.
Item to check
Probable cause
Remedy
---
---
---
---
Local node parameter is outside
of specified range.
Local node not part of Network.
Set the parameter correctly.
Local node SYSMAC LINK Unit
was initialized during instruction
execution.
Execute the instruction again.
Destination node not part of Network.
Add to Network.
Destination node SYSMAC LINK
Unit was initialized during instruction execution.
Execute the instruction again.
Increase the number of transmit retry
attempts or re-evaluate the system so
that the destination node is not so busy
receiving data.
Increase the number of transmit retry
attempts. Perform an internode echo test
to check noise level.
Network status of
local node
Network status of
destination node
Add to Network.
04: Busy error
---
Destination node is engaged in
receiving data.
05: Response
Time-out
---
Message packet was corrupted
by noise.
Control data
Response watchdog timer interval
too short.
DM Area overrun because of DM
Area size mismatch between
PCs.
Increase the value for the response
watchdog timer interval.
Check the first word of the data transfer
area at the destination node and reset if
necessary.
06: Response
Error
Destination node
parameters
07:
Communications
controller error
AR 1114 (level 0) or
AR 1514 (level 1)
An error has occurred in the local
node communications controller.
Take corrective action, referring to communications controller errors and remedies table at end of this section.
08: Setting error
Node number
Check node number of local
node.
09: PC error
Destination node
indicators
A CPU Unit error at the destination node has occurred.
Set the node number correctly. Make
sure the node number is within specified
range and that there are no duplicate
node numbers.
Clear the error in the CPU Unit (refer to
the PC’s Operating Manual).
CV-mode Command Errors
Main code
00: Normal completion
The table below lists response codes (main and sub-codes) returned after
execution of the CV-mode commands, the probable cause of errors, and recommended remedies. Upon receipt of some commands, the destination node will
issue a request to another node; the other node is referred to as the third node.
Subcode
00
Probable cause
Remedy
---
---
01
Service was interrupted.
Check the contents of the destination
transmission area of third node.
119
Section 8-1
Troubleshooting
Main code
01: Local node error
Subcode
01
02
03
02: Destination node
error
03: Communications
controller error
Add to Network.
Token time-out, node number too
high.
Number of transmit retries exceeded.
Set the local node’s node number below
the maximum node number.
Check communications with internode
echo test. If the test fails, check network.
Either check the execution of events in the
network and reduce the number of events
occurring in one cycle, or increase the
maximum number of frames.
Make sure the node number is within
specified range and that there are no
duplicate node numbers.
05
Node number setting error (range).
06
Node number duplication error.
01
Destination node not part of Network.
Make sure that there are no duplicate node
numbers.
Add to Network.
02
03
No node with the specified node
number.
Third node not part of Network.
Check the destination node’s node
number.
Check the third node’s node number.
04
Busy error, destination node busy.
05
Response time-out, message packet
was corrupted by noise.
Increase the number of transmit retry
attempts or re-evaluate the system so that
the destination node is not so busy
receiving data.
Increase the number of transmit retry
attempts. Perform an internode echo test
to check noise level.
Response time-out, response watchdog timer interval too short.
Error occurred in the communications
controller, ERC indicator is lit.
Increase the value for the response watchdog timer interval.
Take corrective action, referring to
communications controller errors and
remedies table at end of this section.
CPU Unit error occurred in the PC at
the destination node.
Node number setting error.
Clear the error in the CPU Unit (refer to the
PC’s Operating Manual)
Make sure the node number is within
specified range and that there are no
duplicate node numbers.
An undefined command has been
used.
Cannot process command because
the specified unit model or version is
wrong.
Check the command code.
02
Destination node number is not set in
the routing table.
Routing table isn’t registered.
03
Routing table error.
Set the destination node number in the
routing table.
Set the source nodes, destination nodes,
and relay nodes in the routing table.
Set the routing table correctly.
04
The maximum number of relay nodes
(2) was exceeded in the command.
01
01
02
120
Local node not part of Network.
Maximum number of frames
exceeded.
04
05: Routing error
Remedy
04
02
04: Not executable
Probable cause
01
Check the unit model and version.
Redesign the network or reconsider the
routing table to reduce the number of relay
nodes in the command.
Section 8-1
Troubleshooting
Main code
10: Command format
error
Subcode
01
Check the command format of the
command and set it correctly.
Check the command format of the
command and set it correctly.
Check the number of items and the data,
and make sure that they agree.
Check the command format of the
command and set it correctly.
05
An incorrect header has been used.
(The local node’s relay table or relay
node’s local network table is wrong.)
Set the routing table correctly.
01
A correct memory area code has not
Check the command’s memory area code
been used or Expansion Data Memory and set the appropriate code.
is not available.
02
The access size specified in the
command is wrong, or the first
address is an odd number.
Set the correct access size for the
command.
03
The first address is in an inaccessible
area.
The end of specified word range
exceeds the acceptable range.
Set a first address that is in an accessible
area.
Check the acceptable limits of the data
area and set the word range within the
limits.
A non-existent program no. has been
specified.
The sizes of data items in the
command block are wrong.
The response block is longer than the
max. permissible length.
An incorrect parameter code has been
specified.
Check the program number and be sure
that it is set correctly.
Check the command data and be sure that
the sixes of the data items are correct.
Check the command format and set the
number of items correctly.
Check the command data and reenter it
correctly.
02
The program area is protected.
Execute the instruction again after issuing
the PROGRAM AREA PROTECT CLEAR
command.
03
The registered table does not exist or
is incorrect.
Set or reset the registered table.
01
The specified area is read-only or is
write-protected.
If the specified area is read-only, the write
cannot be performed. If it is
write-protected, turn off the write-protect
switch and execute the instruction again.
02
The program area is protected.
Execute the instruction again after issuing
the PROGRAM AREA PROTECT CLEAR
command.
01
The mode is wrong (being executed).
Check the operating mode.
02
The mode is wrong (stopped).
Check the operating mode.
03
The PC is in the PROGRAM mode.
Check the PC’s mode.
04
The PC is in the DEBUG mode.
Check the PC’s mode.
05
The PC is in the MONITOR mode.
Check the PC’s mode.
06
The PC is in the RUN mode.
Check the PC’s mode.
07
Check which node is the control node.
02
The specified node is not the control
node.
The specified memory does not exist.
03
No clock exists.
01
The data link table either hasn’t been
created or is incorrect.
03
04
04
06
09
0B
0C
20: Read not possible
21: Write not possible
22: Not executable in
current mode
23: No Unit
24: Start/halt not
possible
Remedy
The command is longer than the max.
permissible length.
The command is shorter than min.
permissible length.
The designated number of data items
differs from the actual number.
An incorrect command format has
been used.
02
11: Parameter error
Probable cause
Check the specifications of the installed file
memory.
Check the model number.
Set the data link table correctly.
121
Section 8-1
Troubleshooting
Main code
25: Unit error
Subcode
12
26: Command error
05
The service is being executed.
07
Service cannot be executed from local
node because the local node is not
part of the data link.
0B
Cannot clear error because the cause
of the error still exists.
Data Link Status Errors
Data link status
PC Error ON
Communications
error ON
Node not in data
link
Probable cause
Execute the command again after the
service has been completed or aborted.
Execute the service from a node that is
part of the data link.
Eliminate the cause of the error and
execute the ERROR CLEAR command.
The following table lists data link status errors, their probable cause, and possible remedies. Check all nodes in question.
Point to check
PC Error Flag
(bit 01, 05, 09, or 13 in the
data link status flags)
Communications Error Flag
(bit 02, 06, 10, or 14 in the
data link status flags)
Data Link Member Flag
(bit 03, 07, 11, or 15 in the
data link status flags)
Data Link Table Error
Messages
Remedy
Probable cause
Remedy
A fatal error has caused the CPU
Unit to halt (FALS instruction generated, etc.) CPU Unit error.
Clear the error in the CPU Unit,
referring to the Unit’s Operating
Manual and Installation Guide.
Connected to an incompatible
PC.
Error resulting from noise.
Connect only to compatible PCs.
Unit in question is not part of the
Network.
Communications cycle time too
short.
Node in question is not part of the
data link.
Add the Unit to the Network.
Run an internode echo test; if the
results are not OK, re-check the
operating environment.
Increase communications cycle
time.
Add the node in question to the
data link.
The following tables list data link table errors, their probable cause, and possible
remedies for the SSS/CVSS.
SSS/CVSS
Error
Write not
possible
Probable Cause and Remedy
The number of LR Area data link words is greater than 64 words. The maximum number of LR Area
data link words is 64 words in C-series PCs.
The total number of data link words is greater than 2966 words (918 words when C200HW-SLK13/23
SYSMAC LINK Units are included). Make sure that the total number of data link words is 2966 words
or less (918 words or less when C200HW-SLK13/23 SYSMAC LINK Units are included).
The node number of a C200HW-SLK13/23 SYSMAC LINK Unit has been set incorrectly when the
total number of data link words exceeds 918. Refer to 5-8 Data Link Precautions for more details on
node number settings.
The refresh parameter’s beginning DM or LR word setting is incorrect. When setting the beginning LR
word for C-series SYSMAC LINK Units, LR words LR 00 to LR 63 correspond to CV-series addresses
CIO 1000 to CIO 1063. Refer to page 44 for details on data link areas for different PC models.
The refresh parameter’s beginning DM or LR word setting is incorrect and the regions specified by the
beginning DM or LR words cannot be used as a data link area. The data area regions that can be
used as a data link area vary from PC to PC. Refer to page 44 for details on data link areas for
different PC models. (Also, C-series addresses LR 00 to LR 63 correspond to CV-series addresses
CIO 1000 to CIO 1063.)
The refresh parameter’s beginning status word setting is incorrect. Make sure that the beginning
status word specifies a region that can be used for the data link status area (16 words). Refer to 5-8
Data Link Precautions for more details.
The refresh parameter’s PC model setting is set to “CV-series.” Set the PC model to “Other” when the
setting is for a C-series SYSMAC LINK Unit.
Other Errors
122
The table below lists other errors not covered above. Probable causes and remedies are also provided.
Section 8-1
Troubleshooting
Error
Communications
Controller error
Point to check
Remedy
AR 1114 for
operating level 0
Noise or environmental influences.
AR 1514 for
operating level 1
Consider replacing communications-reReinitialize the SYSMAC LINK Unit
lated hardware if one of the following
If the problem recurs, replace the
errors occurs:
Unit.
· Communications Controller watchdog
timer error · Communications Controller
memory error · Communications Controller chip bad · Transmitter portion of
Communications Controller bad · Local
node internode echo test error
ERC indicator
Communications
Controller error
Probable cause
AR 1114 for
operating level 0
AR 1514 for
operating level 1
Hardware problem
in the
communications
section of the Unit.
• Communications
Controller
memory error.
Run an internode echo test; if an
error occurs, recheck the operating
environment.
Replace the SYSMAC LINK Unit.
• Communications
Controller
chip
bad.
• Transmission
section of the
Communications
Controller bad.
• Local node loopback test error.
Power supply
selection
se
ec o ccircuit
cu is
s
unstable.
EEPROM error
• Communications
Controller watchdog timer error.
Power Supply Unit Replace the Power Supply Unit.
may be faulty.
Power supply
Replace the SYSMAC LINK Unit.
section of the Unit
is faulty.
Connectors are
broken or have
poor contact.
Check connectors and replace them
if necessary.
External power
supply on the
primary side of the
Power Supply Unit
has dropped.
Check the primary side of the
Power Supply Unit.
AR 1115 for
operating level 0
Network parameters backed up in the
EEPROM or data link table corrupted.
AR 1515 for
operating level 1
Network parameters or data link table
(1) Reset the network parameters
destroyed when backing up in EEPROM. and data link tables using the SSS/
CVSS.
When a network parameters mismatch
ERH indicator
occurs, the parameters have been
destroyed.
When the LNK indicator flashes, it indicates that the data link table has been
destroyed.
Network
Parameters
mismatch
AR 2406 for
operating level 1
AR 2407 for
operating level 0
Network parameters being used in the
currently operating Network do not
match the network parameters set in the
Unit in question.
Reset the network parameters and
data link tables in the node in question.
(2) Initialize the Unit by toggling DIP
switch 1, pin 7 (C1000H-SLK11 or
C1000H-SLK21) or DIP switch 2,
pin 3 (C200HW-SLK13/14/23/24).
a)If an EEPROM error continues to
occur even after performing the
reset actions above, the EEPROM
has failed. Replace the Unit.
Use the SSS/CVSS to check the
network parameters and reset them
if necessary.
123
Section 8-2
Network Troubleshooting
8-2
Network Troubleshooting
Use the headings in this section to troubleshoot problems that occur in the Network and find a list of the probable causes of the problem.
Unable to operate network
Check indicators on the entire Network.
RUN indicator not lit
• Check whether power is being supplied to the PC at adequate voltage.
• Check whether mounting screws on Unit are tight.
• Check whether the Unit is mounted in a permissible slot on the Rack.
• Check whether the Unit operates normally when mounted on another PC.
• If none of the actions above solve the problem, replace suspect SYSMAC
LINK Units.
INS indicator not lit
• Check whether local node number is greater than the maximum node number
setting. If it is, lower local node number or increase maximum node number.
• Check whether the same node number has been assigned twice.
• In coaxial cable systems, check whether the Terminators are connected properly.
• Check whether all cables are connected properly.
• Check whether the cables transmit properly.
Unable to add local node to network
A local node cannot be added to the Network. (Check indicators on the node
which cannot be added.)
RUN indicator not lit
• Check whether power is being supplied to the PC at adequate voltage.
• Check whether mounting screws on Unit are tight.
• Check whether the Unit is mounted in a permissible slot on the Rack.
• Check whether the Unit operates normally when mounted on another PC.
• If none of the actions above solve the problem, replace suspect SYSMAC
LINK Units.
ERC indicator lit
• Check the PC’s Communications Controller Error Flags. If ON, replace the
SYSMAC LINK Unit.
• Check whether node number is within the range of 1 to 62. If not, reset to a
unique node number from 1 to 62 (duplicate node numbers not permitted).
• Check for duplicate node numbers. Make sure each node number is assigned
to only one unit.
ERH indicator lit
• Check whether the Unit is mounted to an incompatible model or version or PC.
Replace PC if necessary.
• Check for CPU Unit error in the PC. Switch power off and turn on again. If problem occurs again, replace PC.
• Check for EEPROM error.
INS indicator not lit
• Check whether local node number is greater than the maximum node number
setting. If it is, lower local node number or increase maximum node number.
• Check whether the same node number has been assigned twice.
124
Section 8-2
Network Troubleshooting
• In coaxial cable systems, check whether the Terminators are connected properly.
• Check whether all cables are connected properly.
• Check whether the cables transmit properly.
Data link cannot be started
Data link does not operate properly. Check indicators on the data link nodes.
LNK indicator is not lit and
RUN indicator not lit
• Check whether power is being supplied to the PC at adequate voltage.
• Check whether mounting screws on Unit are tight.
• Check whether the Unit is mounted in a permissible slot on the Rack.
• Check whether the Unit operates normally when mounted on another PC.
• If none of the actions above solve the problem, replace SYSMAC LINK Units.
ERC indicator lit
• Check the PC’s Communications Controller Error Flags. If ON, replace the
SYSMAC LINK Unit.
• Check whether node number is within the range of 1 to 62. If not, reset to a
unique node number from 1 to 62 (duplicate node numbers not permitted).
• Check for duplicate node numbers. Make sure each node number is assigned
to only one unit.
ERH indicator lit
• Check whether the Unit is mounted to an incompatible model or version or PC.
Replace PC if necessary.
• Check for CPU Unit error in the PC. Switch power off and turn on again. If problem occurs again, replace PC.
• Check for EEPROM error.
INS indicator not lit
• Check whether local node number is greater than the maximum node number
setting. If it is, lower local node number or increase maximum node number.
• Check whether the same node number has been assigned twice.
• In coaxial cable systems, check whether the Terminators are connected properly.
• Check whether all cables are connected properly.
• Check whether the cables transmit properly.
LNK indicator flashing
• Check whether a data link table has been created. If not, generate one.
• Check whether an EEPROM error has occurred. If so, investigate EEPROM
error causes and remedies as outlined on page 123
• If a data link is already operating on the same Network, bring that data link to a
halt, and start the data link that has the problem.
• If the LNK indicator flashing on other nodes, stop the data links in those nodes.
Data link cannot be stopped
Data link does not operate properly. Check indicator indicators on the data
link nodes.
LNK indicator is not lit and
RUN indicator not lit
• Check whether power is being supplied to the PC at adequate voltage.
• Check whether mounting screws on Unit are tight.
125
Section 8-2
Network Troubleshooting
• Check whether the Unit is mounted in a permissible slot on the Rack.
• Check whether the Unit operates normally when mounted on another PC.
• If none of the actions above solve the problem, replace suspect SYSMAC
LINK Units.
ERC indicator lit
• Check the PC’s Communications Controller Error Flags. If ON, replace the
SYSMAC LINK Unit.
• Check whether node number is within the range of 1 to 62. If not, reset to a
unique node number from 1 to 62 (duplicate node numbers not permitted).
• Check for duplicate node numbers. Make sure each node number is assigned
to only one unit.
ERH indicator lit
• Check whether the Unit is mounted to an incompatible model or version or PC.
Replace PC if necessary.
• Check for CPU Unit error in the PC. Switch power off and turn on again. If problem occurs again, replace PC.
• Check for EEPROM error.
INS indicator not lit
• Check whether local node number is greater than the maximum node number
setting. If it is, lower local node number or increase maximum node number.
• Check whether the same node number has been assigned twice.
• In coaxial cable systems, check whether the Terminators are connected properly.
• Check whether all cables are connected properly.
• Check whether the cables transmit properly.
Node cannot join data link
Node cannot be entered into the data link. Check indicators on the node
which you want to add to data link.
LNK indicator is not lit and
RUN indicator not lit
• Check whether power is being supplied to the PC at adequate voltage.
• Check whether mounting screws on Unit are tight.
• Check whether the Unit is mounted in a permissible slot on the Rack.
• Check whether the Unit operates normally when mounted on another PC.
• If none of the actions above solve the problem, replace suspect SYSMAC
LINK Units.
ERC indicator lit
• Check the PC’s Communications Controller Error Flags. If ON, replace the
SYSMAC LINK Unit.
• Check whether node number is within the range of 1 to 62. If not, reset to a
unique node number from 1 to 62 (duplicate node numbers not permitted).
• Check for duplicate node numbers. Make sure each node number is assigned
to only one unit.
ERH indicator lit
• Check whether the Unit is mounted to an incompatible model or version or PC.
Replace PC if necessary.
• Check for CPU Unit error in the PC. Switch power off and turn on again. If problem occurs again, replace PC.
• Check for EEPROM error.
126
Network Troubleshooting
Section 8-2
INS indicator not lit
• Check whether local node number is greater than the maximum node number
setting. If it is, lower local node number or increase maximum node number.
• Check whether the same node number has been assigned twice.
• In coaxial cable systems, check whether the Terminators are connected properly.
• Check whether all cables are connected properly.
• Check whether the cables transmit properly.
LNK indicator flashing
• Confirm that a data link table has been created. If not, do so.
• Check whether the data link tables of nodes which are currently in the data link
match that of the local node. If not, stop data link operations and modify the
data link table either in the local node or the nodes which are currently linked.
• If the data link tables do match, check whether an EEPROM error has
occurred. If so, investigate EEPROM error causes and remedies.
LNK indicator still not lit
• When the data link tables have been generated automatically, confirm that the
node number of the local node is within the range of node numbers set automatically. If not, either lower the node number of the local node so that it is
within the range, or change the automatic settings in AR 07 to include the local
node.
• Check whether the node number of the local node is included in the common
link parameters in the data link tables of those nodes currently in the data link. If
not, stop data link operations and modify the data link tables of either the active
nodes or of the local node.
127
SECTION 9
Inspection and Maintenance
This section contains information describing periodic maintenance required by the System and how to replace a SYSMAC
LINK Unit.
9-1
9-2
Periodic Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing SYSMAC LINK Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
130
131
129
Section 9-1
Periodic Inspection
9-1
Periodic Inspection
SYSMAC LINK Units must be inspected on a regular basis to ensure correct
operation. SYSMAC LINK Units are built primarily of solid-state components
and contain almost no parts subject to wear. Nevertheless, the life span of
some solid-state components can be shortened as a result of adverse environmental conditions.
We recommend that the following points be checked at least once every 6 to
12 months as part of a standard inspection program. Ambient conditions
should be checked more frequently. If any of these items deviate from the
prescribed standards, take appropriate action to correct the condition.
Item
Description
Ambient conditions
Temperature: 0° to 55°C
Humidity: 10% to 90% (no condensation)
Dust-free
Installation
SYSMAC LINK Units securely attached?
Cable connectors tight?
Screws tightened on terminal blocks for external wiring?
Cabling used for external wiring intact (no breaks)?
We recommend that users have backup Units available to make repairs and
minimize down-time if a problem occurs in a SYSMAC LINK Unit.
Handling Precautions when
Replacing Units
Please observe the following precautions in the event of a problem:
• Always turn the power off when replacing a SYSMAC LINK Unit.
• After replacing a Unit, always make the required settings before restarting
operation.
• If a SYSMAC LINK Unit fails, replace it with a new one and immediately verify
that the new Unit is working properly.
• When returning a malfunctioning SYSMAC LINK Unit for repair, please attach
a detailed description of the problem to the Unit and return it to the sales office
nearest you (see listing at the end of this manual).
• If you suspect that a poor connection is the cause of a malfunction, clean the
connectors using a clean, soft cloth and industrial-grade alcohol. Remove any
lint or threads left from the cloth, and re-mount the SYSMAC LINK Unit.
Interchanging
C200HS-SLK12/22 and
C200HW-SLK13/14/23/24
SYSMAC LINK Units
The C200HW-SLK13/14/23/24 SYSMAC LINK Units’ functions are equal to or
superior to those of the C200HS-SLK12/22 Units, so C200HS-SLK12/22 Units
can be replaced with C200HW-SLK13/14/23/24 Units. Do not replace C200HWSLK13/14/23/24 Units with C200HS-SLK12/22 Units.
Tools and Equipment
Needed for Inspection
The following tools and equipment will be needed to perform inspection and
adjustments.
• Assorted flat-blade and Phillips screwdrivers
• Circuit tester or digital VOM
• Industrial-grade alcohol and clean cotton cloth
• Synchroscope
• Pen-chart recording oscilloscope
• Thermometer, hygrometer
130
Replacing SYSMAC LINK Units
9-2
Section 9-2
Replacing SYSMAC LINK Units
Note
1. Data link tables and network parameters are stored in the EEPROM in the
SYSMAC LINK Unit. Be extremely careful when removing this component
from the old SYSMAC LINK Unit and inserting it in the new Unit.
2. Always turn off the power supply to the PC before attempting to replace a
Unit.
Manually Set Data Link
If data links have been established manually, the data link table must be re-set
after mounting the new Unit and before activating data links. If data link areas are
set automatically, this re-set operation is unnecessary as long as SW1 and SW2
are set correctly.
Network Parameters
To use network parameters other than default values, use the following procedure after mounting the new Unit.
1, 2, 3...
1. Set SW1 pin 8 to ON (polling unit setting*).
2. After initializing the SYSMAC LINK Unit, confirm that it has correctly joined
the Network by checking the indicators (INS LED lit, and ERC and ERH
LEDs not lit indicate normal operation).
3. Set SW1 pin 8 to OFF (polled unit setting*).
4. After initializing the SYSMAC LINK Unit, confirm that it has correctly joined
the Network by checking the indicators (INS LED lit, and ERC and ERH
LEDs not lit indicate normal operation).
Note *Refer to 4-5 Polling Unit Setting for more information on the polling unit.
131
Appendix A
Standard Models
SYSMAC LINK Units
Name
SYSMAC LINK Unit
Specifications
Use optical fiber cable. Refer to the tables below for accessories.
Model
C200HW-SLK13
C200HW-SLK14
C1000H-SLK11
C200HW-SLK23
C200HW-SLK24
C1000H-SLK21-V1
Includes to secures the optical fiber cables to the Unit.
Use coaxial cable. Refer to the tables below for accessories.
Accessories
The required number of each of the following is included with the SYSMAC LINK Units. Replacement parts can be
ordered using the following model numbers.
• Optical-type Units
Name
Optical Fiber Cable
Mounting Bracket
Specifications
Secures the optical fiber cables to the Unit and includes the following:
Mounting Bracket
M3 hexagonal nuts (2)
Cable Retainer
Pan-head Phillips screws (M3 x 6) (2)
Terminal screws (2)
Binding Phillips screw (M3 x 10)
• Coaxial Units
Name
F Adapter
F Adapter cover
Specifications
One of each is included with the C200HW-SLK23/24 and
C1000H SLK21 V1
C1000H-SLK21-V1.
F Adapter Attachment Stirrup
One is included with the C200HW-SLK23/24 only.
Model
C1000H-CE001
C1000H-COV01
C200H-TL001
Related Items
The following items might be required depending on the SYSMAC LINK Unit and system configuration.
Name
Bus Connector
(F C200HX/HG/HE)
(For
Bus Connector
(F C200H/HS)
(For
Communications
Board
Terminator
Specifications
Required
q
to connect SYSMAC LINK Unit(s)
( ) to a Connects one Unit
C200HX/HG/HE
C200HX/HG/HE.
Connects two Units
Required to connect one SYSMAC LINK Unit
Connects two Units
and one PC Card Unit to a C200HX/HG/HE.
Required
q
to connect SYSMAC LINK Unit(s)
( ) to a Connects one Unit
C200H/HS
C200H/HS.
Connects two Units
Required to connect SYSMAC LINK Unit(s) to a C200HX/HG/HE.
Two required for each Network connected with coaxial cable.
Model
C200HW-CE001
C200HW-CE002
C200HW-CE012
C200H-CE001
C200H-CE002
C200HW-COM01
C200HW-COM04-EV1
C1000H-TER01
Auxiliary Power Supply Units
Name
Auxiliary
y Power Supply
pp y
U i
Unit
Specifications
For use with the C1000H-SLK11.
For use with the C200HW-SLK13/14.
Model
C1000H-APS01
C200H-APS03
133
Appendix A
Standard Models
Accessories
The required number of each of the following is included with the Auxiliary Power Supply Units. Replacement parts
can be ordered using the following model numbers.
Name
Specifications
Power Supply Cable (Supplies one Unit.)
Model
One is included with the C1000H-APS01.
C1000H-CN111
One is included with the C200H-APS03.
C200H-CN111
Related Items
The following items will be required when connecting two Units to one Power Supply Unit.
Name
Power Supply Cable
Specifications
Connects to one Unit. Order one more cable (one is included with the
Power Supply Unit) when connecting two C1000H-SLK11 Units.
Connects to two Units. Order one when connecting two C200HWSLK13/14 Units.
Model
C1000H-CN111
C200H-CN211
Applicable CPU Units
The following table shows which CPU Units are compatible with which SYSMAC LINK Units. The SYSMAC LINK
Units cannot be used with other CPU Units or with a C2000H Duplex System (even one set for Simplex operation.)
A Communications Board equipped with a Link Interface (C200HW-COM01/04-EV1) is required when mounting a
SYSMAC LINK Unit to a C200HX/HG/HE PC.
SYSMAC LINK Unit
Specifications
C1000H-SLK21-V1
C1000H-SLK11
C200HW-SLK23/24
Coaxial-type
Optical-type
Coaxial-type
C200HW-SLK13/14
Optical-type
Applicable CPU Unit(s)
C1000H-CPU01-EV1
C2000H CPU01 EV1
C2000H-CPU01-EV1
C200H-CPU11-E
C200H-CPU31-E
C200HS-CPU31-E
C200HS-CPU33-E
C200HX-CPU34-E
C200HX-CPU44-E
C200HX-CPU54-E
C200HX
CPU54 E
C200HX-CPU64-E
C200HG-CPU33-E
C200HG-CPU43-E
C200HG-CPU53-E
C200HG-CPU63-E
C200HE-CPU32-E
C200HE-CPU42-E
Connectors and Related Items
The following tables list the optical and coaxial connectors as well as tools used to attach the connectors and test
connections.
Optical-type
Name
Optical Connector
Optical Connector
Assembly Tools
Optical Power Tester
Master Fiber
Specifications
Connects the optical fiber cable to the C1000H-SLK11. (See note 1.)
Two are required for each node.
Connects the optical fiber cable to the C200HW-SLK13/14. Two are
required for each node. (Can be used with the C1000H-SLK11 too.)
This inline adapter splices optical fiber cable. One is required for each
break in the cable.
For use with the S3200-COCF2071/COCF2571 Optical Connector.
(Optical fiber cable cutters are included)
For use with the S3200-COCF2071/COCF2571 Optical Connector.
(Head Unit model number: S3200-CAT2702)
For use with the S3200-COCF2071/COCF2571 Optical Connector.
Model
S3200-COCF2071
S3200-COCF2571
S3200-COIA2000
CAK-0057
(See note 2.)
S3200-CAT2700
S3200-CAT2001H
Note 1. Never use the S3200-COCF2011 Optical Connector with C200HW-SLK13/14 SYSMAC LINK Units.
The connector might become stuck in the Unit if inserted.
134
Appendix A
Standard Models
2. The S3200-COCF2071/2571 Connectors can be assembled using the S3200-CAK1062 by adding the
JRFK-57PWS (made by Sumitomo Electric Industries, Ltd.).
Coaxial-type Units
Name
Specifications
Model
BNC Connector
Crimp-on connector.
BNC-P-5C-CR10-B
Crimping Tool
Attaches the connector.
CR-H-1130
Cables
Optical Fiber Cable
The following table lists the Hard Plastic-clad Optical Fiber Cables that can be used with the C200HW-SLK13/14
and C1000H-SLK11.
Name
Optical Fiber Cable
Specifications
Model
Black, 10 m long
S3200-HCCB101
Black, 50 m long
S3200-HCCB501
Black, 100 m long
S3200-HCCB102
Black, 500 m long
S3200-HCCB502
Black, 1000 m long
S3200-HCCB103
Orange, 10 m long
S3200-HCCO102
Orange, 50 m long
S3200-HCCO501
Orange, 100 m long
S3200-HCCO102
Orange, 500 m long
S3200-HCCO502
Orange, 1000 m long
S3200-HCCO103
The following table shows the code used the last 6 or 7 characters (after S3200-H) of the Optical Fiber Cable
model numbers.
Character
Possible characters
Meaning
First
C or B
C indicates cord, and B indicates cable.
Second
C or L
C indicates no power cable, and L indicates power cable attached.
Third
B or O
B indicates black, and O indicates orange.
Fourth
Fifth
A = 1 to 9
Always 0
Cable length in scientific notation. L = A : 10B.
Sixth
B = 1 to 3
Seventh
N or blank
N indicates no tension wires are attached.
Coaxial Cable
Use a high quality 5C-2V coaxial cable with the C200HW-SLK23/24 and C1000H-SLK21-V1.
Peripheral Devices
Name
Specifications
Model
SSS
IBM PC/AT or compatible, 3.5” disks
CVSS
IBM PC/AT or compatible, 3.5” disks
C500-ZL3AT1-E
V1.1
CV500-ZS3AT1-EV2
Programming Console
Vertical, w/backlight
3G2A5-PRO13-E
Horizontal, w/backlight
3G2A6-PRO15-E
Hand-Held, w/backlight Except for C200H and C20, the Programming C200H-PRO27-E
Console Adapter AP003 and connecting cable CN222/CN422 are
necessary. They are sold separately.
135
Appendix B
Specifications
Communications Specifications
Item
Specification
Communications method
C200HW-SLK23/SLK24 and
C1000H-SLK21-V1
Token ring (N:N)
Transmission method
Manchester encoding, baseband
Data transmission rate
2 Mbps
Media
Coaxial cable (5C-2V)
Hard-plastic-clad quartz optical fiber cable
Transmission path
Bus
Daisy chain
No. of nodes
62 max.
Distance between nodes
Total: 1 km
Message length
512 bytes max. (not including header)
Connectors
BNC (F Adaptor)
Link functions
Data link, data read/write service
Data link words
2,966 words max. in LR and DM Areas combined (918 words max. with only C200HWSLK13/SLK23 in data link) (see note 2)
Send/receive buffer capacity
Buffers for 13 messages (1-message send buffer +2-message receive buffer+10-message
send/receive buffer)
RAS functions
Automatic polling unit backup, self-diagnostics (internode echo tests), failed node bypass
(optical systems only), watchdog timer, error (CRC-CCITT) detection = X16 + X12 + X5 + 1
C200HW-SLK23/SLK24: 0.4 kg max.
C200HW-SLK13/SLK14: 0.5 kg max.
C1000H-SLK21-V1:
0.6 kg max.
C1000H-SLK11:
0.7 kg max.
Weight
C200HW-SLK13/SLK14 and
C1000H-SLK11
Total: 10 km (800 m max. between nodes
if press-fit; 1 km if polished and connected) (see note 1)
Full, half-lock press-in connector
Note 1. A press-fit type connector, which ensures a transmission distance of 800 m, can be made by the user. A
cable with connectors is a polished-connection type, and ensures a transmission distance of 1 km.
2. There are some usage restrictions in systems that incorporates the C200HW-SLK14/SLK24 or
C1000H-SLK11/SLK21-V1 with the in the same system. Refer to 5-6-1 Combining the C200HWSLK13/SLK23 with other SYSMAC LINK Units for details.
SR and AR Bits
Refer to your PC’s Operation Manual for tables of all SR and AR bits that can be used in relation to SYSMAC LINK
Units.
137
Appendix C
Internal Configuration
The diagrams below show the configuration of the internal components of SYSMAC LINK Units.
Optical Units
CPU
CPU bus
connector
System
ROM
C200H or
C1000H
Interface
Communications
controller
Buffer
memory
RAM
EEPROM*
Optical
interface
Optical
module
Optical
module
Note *Network parameters and data link tables are backed up in EEPROM.
Coaxial-cable Units
CPU
CPU bus
connector
System
ROM
C200H or
C1000H
Interface
Communications
controller
Buffer
memory
RAM
EEPROM*
Driver/
receiver
BNC
connector
Note *Network parameters and data link tables are backed up in EEPROM.
139
Glossary
address
A number used to identify the location of data or programming instructions in
memory or to identify the location of a node on a network.
AGF
All-glass optical fiber cable; also known as crystal optical fiber cable.
allocation
The process by which the PC assigns certain bits or words in memory for various
functions. This includes pairing I/O bits to I/O points on Units.
APF
An acronym for all-plastic optical fiber cable.
Auxiliary Area
A PC data area allocated to flags and control bits.
auxiliary bit
A bit in the Auxiliary Area.
Backplane
A base to which Units are mounted to form a Rack. Backplanes provide a
series of connectors for these Units along with wiring to connect them to the
CPU Unit. Backplanes also provide connectors used to connect them to other
Backplanes. In some Systems, different Backplanes are used for different
Racks; in other Systems, Racks differ only by the Units mounted to them.
basic Link System
A control system that includes only one of the following systems: SYSMAC
LINK System, Remote I/O System, PC Link System, Host Link System, or
NET Link System.
baud rate
The data transmission speed between two devices in a system measured in bits
per second.
BCD
Short for binary-coded decimal.
binary
A number system where all numbers are expressed in base 2, i.e., numbers are
written using only 0’s and 1’s. Each group of four binary bits is equivalent to one
hexadecimal digit. Binary data in memory is thus often expressed in hexadecimal for convenience.
binary-coded decimal
A system used to represent numbers so that every four binary bits is numerically
equivalent to one decimal digit.
bit
The smallest piece of information that can be represented on a computer. A bit
has the value of either zero or one, corresponding to the electrical signals ON
and OFF. A bit represents one binary digit. Some bits at particular addresses are
allocated to special purposes, such as holding the status of input from external
devices, while other bits are available for general use in programming.
bit address
The location in memory where a bit of data is stored. A bit address specifies the
data area and word that is being addressed as well as the number of the bit
within the word.
buffer
A temporary storage space for data in a computerized device.
building-block PC
A PC that is constructed from individual components, or “building blocks.”
With building-block PCs, there is no one Unit that is independently identifiable as a PC. The PC is rather a functional assembly of components.
141
Glossary
bus
A communications path used to pass data between any of the Units connected
to it.
byte
A unit of data equivalent to 8 bits, i.e., half a word.
central processing unit
A device that is capable of storing programs and data, and executing the instructions contained in the programs. In a PC System, the central processing unit
executes the program, processes I/O signals, communicates with external
devices, etc.
channel
See word.
C-mode
The form of communications useable with either C-series or CV-series PCs. See
CV-mode.
combined Link System
A control system that includes more than one of the following systems: SYSMAC LINK System, Remote I/O System, PC Link System, Host Link System,
or NET Link System.
common data
Data that is stored in a memory of a PC and which is shared by other PCs in the
same the same system. Each PC has a specified section(s) of the area allocated
to it. Each PC writes to the section(s) allocated to it and reads the sections allocated to the other PCs with which it shares the common data.
common data areas
LR data areas in separate PCs whose contents are kept the same. Each PC
writes data to certain LR area words, and then transfers this data to the same
LR area words in the other PCs that have a PC or SYSMAC LINK Unit connected in series with it. Common data areas are created in PC Link Systems
and SYSMAC LINK Systems.
communications cable
Cable used to transfer data between components of a control system and conforming to the RS-232C or RS-422 standards.
Control System
All of the hardware and software components used to control other devices.
A Control System includes the PC System, the PC programs, and all I/O
devices that are used to control or obtain feedback from the controlled system.
controlled system
The devices that are being controlled by a PC System.
controller
A device on a general-purpose interface bus that is capable of controlling communications.
Converting Link Adapter
A Link Adapter used to convert between different types of optical fiber cable, different types of wire cable, or between optical fiber cable and wire cable. Such
conversion is necessary to connect Units that use different forms of communication.
CPU Backplane
A Backplane used to create a CPU Rack.
CPU Rack
Part of a building-block PC, the CPU Rack contains the CPU Unit, a Power
Supply, and other Units. With most PCs, the CPU Rack is the only Rack that
provides linkable slots.
CPU Unit
See central processing unit.
C-series PC
Any of the following PCs: C2000H, C1000H, C500, C200H, C200Hj, C40H,
C28H, C20H, C60K, C60P, C40K, C40P, C28K, C28P, C20K, C20P, C120, or
C20.
142
Glossary
CTS
An acronym for clear-to-send, a signal used in communications between electronic devices to indicate that the receiver is ready to accept incoming data.
CTS signal
A signal used in communications between electronic devices to indicate that the
receiver is ready to accept incoming data.
CV Support Software
A programming package run on an IBM PC/AT or compatible to serve as a Programming Device for CV-series PCs.
CV-mode
A form of communications useable only with CV-series PCs. See C-mode.
CV-series PC
Either of the following PCs: CV500 or CV1000.
CVSS
See CV Support Software.
DAC
See Data Access Console.
daisy-chain
A serial connection method in which each device is connected through the previous device.
Data Access Console
A Programming Device used to monitor and control memory area contents. The
Data Access Console does not afford the wide range of programming capabilities as the GPC or CVSS and is designed for system monitoring and maintenance.
data area
An area in the PC’s memory that is designed to hold a specific type of data,
e.g., the LR area is designed for to hold common data in a PC Link System.
data area boundary
The highest address available within a data area. When designating an operand
that requires multiple words, it is necessary to ensure that the highest address in
the data area is not exceeded.
data length
In communications, the number of bits that is to be treated as one unit in data
transmissions.
data link
An automatic data transmission operation that allows PCs or Units within PC to
pass data back and forth via common data areas.
data link area
A common data area established through a data link.
data link table
A table of settings kept in memory that specifies what words are to be part of a
data link for all PCs involved in the link.
data sharing
An aspect of SYSMAC Link Systems and SYSMAC NET Link Systems in which
common data areas or common data words are created between two or more
PCs.
decrement
Decreasing a numeric value, usually by 1.
default
A value automatically set by the PC when the user does not specifically set
another value. Many devices will assume such default conditions upon the
application of power.
digit
A unit of storage in memory that consists of four bits.
DIN track
A rail designed to fit into grooves on various devices to allow the devices to be
quickly and easily mounted to it.
143
Glossary
DIP switch
Dual in-line package switch, an array of pins in a signal package that is mounted
to a circuit board and is used to set operating parameters.
distributed control
A automation concept in which control of each portion of an automated system is located near the devices actually being control, i.e., control is
decentralized and ‘distributed’ over the system. Distributed control is a concept basic to PC Systems.
electrical noise
Random variations of one or more electrical characteristics such as voltage, current, and data, which might interfere with the normal operation of a device.
error code
A numeric code generated to indicate that an error exists, and something about
the nature of the error. Some error codes are generated by the system; others
are defined in the program by the operator.
even parity
A communication setting that adjusts the number of ON bits so that it is always
even. See parity.
event (data) transfer
A data transfer that is performed in response to an event, e.g., an interrupt signal.
event processing
Processing that is performed in response to an event, e.g., an interrupt signal.
FA
Factory automation.
fatal error
An error that stops PC operation and requires correction before operation can
continue.
flag
A dedicated bit in memory that is set by the system to indicate some type of operating status. Some flags, such as the carry flag, can also be set by the operator
or via the program.
force reset
The process of forcibly turning OFF a bit via a programming device. Bits are usually turned OFF as a result of program execution.
force set
The process of forcibly turning ON a bit via a programming device. Bits are usually turned ON as a result of program execution.
frame checksum
The results of exclusive ORing all data within a specified calculation range. The
frame checksum can be calculated on both the sending and receiving end of a
data transfer to confirm that data was transmitted correctly.
gateway
An interface that connects two networks.
GPC
An acronym for Graphic Programming Console.
Graphic Programming Console
A programming device with advanced programming and debugging capabilities
to facilitate PC operation. A Graphic Programming Console is provided with a
large display onto which ladder-diagram programs can be written directly in ladder-diagram symbols for input into the PC without conversion to mnemonic
form.
hexadecimal
A number system where all numbers are expressed to the base 16. In a PC all
data is ultimately stored in binary form, however, displays and inputs on Programming Devices are often expressed in hexadecimal to simplify operation.
Each group of four binary bits is numerically equivalent to one hexadecimal digit.
host computer
A computer that is used to transfer data to or receive data from a PC in a Host
Link system. The host computer is used for data management and overall system control. Host computers are generally small personal or business computers.
144
Glossary
I/O allocation
The process by which the PC assigns certain bits in memory for various functions. This includes pairing I/O bits to I/O points on Units.
I/O bit
A bit in memory used to hold I/O status. Input bits reflect the status of input terminals; output bits hold the status for output terminals.
I/O capacity
The number of inputs and outputs that a PC is able to handle. This number
ranges from around one-hundred for smaller PCs to two-thousand for the
largest ones.
I/O Control Unit
A Unit mounted to the CPU Rack in certain PCs to monitor and control I/O
points on Expansion I/O Units.
I/O delay
The delay in time from when a signal is sent to an output to when the status of the
output is actually in effect or the delay in time from when the status of an input
changes until the signal indicating the change in the status is received.
I/O devices
The devices to which terminals on I/O Units, Special I/O Units, or Intelligent
I/O Units are connected. I/O devices may be either part of the Control System, if they function to help control other devices, or they may be part of the
controlled system.
I/O Interface Unit
A Unit mounted to an Expansion I/O Rack in certain PCs to interface the
Expansion I/O Rack to the CPU Rack.
I/O point
The place at which an input signal enters the PC System or an output signal
leaves the PC System. In physical terms, an I/O point corresponds to terminals or connector pins on a Unit; in terms of programming, an I/O point corresponds to an I/O bit in the IR area.
I/O refreshing
The process of updating output status sent to external devices so that it agrees
with the status of output bits held in memory and of updating input bits in memory
so that they agree with the status of inputs from external devices.
I/O response time
The time required for an output signal to be sent from the PC in response to an
input signal received from an external device.
I/O Unit
The most basic type of Unit mounted to a backplane to create a Rack. I/O
Units include Input Units and Output Units, each of which is available in a
range of specifications. I/O Units do not include Special I/O Units, Link Units,
etc.
I/O word
A word in the CIO area that is allocated to a Unit in the PC System and is used to
hold I/O status for that Unit.
IBM PC/AT or compatible
A computer that has similar architecture to, that is logically compatible with, and
that can run software designed for an IBM PC/AT computer.
increment
Increasing a numeric value, usually by 1.
initialize
Part of the startup process whereby some memory areas are cleared, system
setup is checked, and default values are set.
input
The signal coming from an external device into the PC. The term input is often
used abstractly or collectively to refer to incoming signals.
input bit
A bit in the CIO area that is allocated to hold the status of an input.
145
Glossary
input device
An external device that sends signals into the PC System.
input point
The point at which an input enters the PC System. Input points correspond
physically to terminals or connector pins.
input signal
A change in the status of a connection entering the PC. Generally an input signal
is said to exist when, for example, a connection point goes from low to high voltage or from a nonconductive to a conductive state.
instruction
A direction given in the program that tells the PC of the action to be carried out,
and the data to be used in carrying out the action. Instructions can be used to
simply turn a bit ON or OFF, or they can perform much more complex actions,
such as converting and/or transferring large blocks of data.
interface
An interface is the conceptual boundary between systems or devices and usually involves changes in the way the communicated data is represented. Interface devices such as NSBs perform operations like changing the coding, format,
or speed of the data.
interrupt (signal)
A signal that stops normal program execution and causes a subroutine to be run
or other processing to take place.
ladder diagram (program)
A form of program arising out of relay-based control systems that uses circuittype diagrams to represent the logic flow of programming instructions. The
appearance of the program is similar to a ladder, and thus the name.
ladder diagram symbol
A symbol used in drawing a ladder-diagram program.
ladder instruction
An instruction that represents the conditions on a ladder-diagram program. The
other instructions in a ladder diagram fall along the right side of the diagram and
are called terminal instructions.
LAN
An acronym for local area network.
leading zero
One of one or more consecutive zeros in the leftmost digits of an address or
numeric value.
least-significant (bit/word)
See rightmost (bit/word).
LED
Acronym for light-emitting diode; a device used as for indicators or displays.
leftmost (bit/word)
The highest numbered bits of a group of bits, generally of an entire word, or the
highest numbered words of a group of words. These bits/words are often called
most-significant bits/words.
link
A hardware or software connection formed between two Units. “Link” can refer
either to a part of the physical connection between two Units or a software connection created to data existing at another location (i.e., data links).
Link Adapter
A Unit used to connect communications lines, either to branch the lines or to convert between different types of cable. There are two types of Link Adapter:
Branching Link Adapters and Converting Link Adapters.
Link Area
A data area that is designed for use in data links.
linkable slot
A slot on either a Backplane to which a Link Unit can be mounted. Backplanes
differ in the slots to which Link Units can be mounted.
146
Glossary
Link System
A system that includes one or more of the following systems: SYSMAC LINK
System, Remote I/O System, PC Link System, Host Link System, or NET
Link System.
Link Unit
Any of the Units used to connect a PC to a Link System. These are SYSMAC
LINK Units, Remote I/O Units, I/O Link Units, PC Link Units, Host Link Units,
and NET Link Units.
local area network
A network consisting of nodes or positions in a loop arrangement. Each node
can be any one of a number of devices. This kind of network usually operates
over a small area such as a group of offices or a factory floor.
loop connection
A method for connecting communications lines in which each Unit is connected
to two other Unit to form a closed loop.
loop-back
The processes of using an alternate communications path that runs in the
reverse direction of the normal communications path to prevent communications from being disabled when communications along the normal path are not
possible.
MONITOR mode
A mode of PC operation in which normal program execution is possible, and
which allows modification of data held in memory. Used for monitoring or debugging the PC.
most-significant (bit/word)
See leftmost (bit/word).
Multilevel PC Link System
A PC Link System in which at least one PC has two PC Link Units mounted
to it.
Multilink PC Link System
A PC Link System in which more than two PCs share a common data area.
Multilevel SYSMAC LINK
System
A SYSMAC LINK System in which at least one PC has two PC Link Units
mounted to it.
Network
See SYSMAC LINK Network.
network interrupt
An interrupt that occurs when data is received on the network interface.
Network Service Board
A device with an interface to connect devices other than PCs to a SYSMAC NET
Link System.
node
One of the positions in a LAN. Each node incorporates a device that can communicate with the devices at all of the other nodes. The device at a node is identified
by the node address.
noise interference
Disturbances in signals caused by electrical noise.
nonfatal error
A hardware or software error that produces a warning but does not stop the PC
from operating.
NSB
An acronym for Network Service Board.
NSU
An acronym for Network Service Unit.
OFF
The status of an input or output when a signal is said not to be present. The OFF
state is generally represented by a low voltage or by non-conductivity, but can be
defined as the opposite of either.
147
Glossary
OFF delay
The delay between the time when a signal is switched OFF (e.g., by an input
device or PC) and the time when the signal reaches a state readable as an OFF
signal (i.e., as no signal) by a receiving party (e.g., output device or PC).
ON
The status of an input or output when a signal is said to be present. The ON state
is generally represented by a high voltage or by conductivity, but can be defined
as the opposite of either.
ON delay
The delay between the time when an ON signal is initiated (e.g., by an input
device or PC) and the time when the signal reaches a state readable as an ON
signal by a receiving party (e.g., output device or PC).
optical cable link
In a Wired Remote I/O System, an optical cable connecting two Converting
Link Adapters. Specified because the System otherwise uses wire communications.
optical communications
A communications method in which signals are sent over optical fiber cable
to prevent noise interference and increase transmission distance.
optical connector
A connector designed to be connected to an optical fiber cable.
optical fiber cable
Cable made from light conducting filaments used to transmit signals.
output
The signal sent from the PC to an external device. The term output is often used
abstractly or collectively to refer to outgoing signals.
output bit
A bit in the IR area that is allocated to hold the status to be sent to an output
device.
output device
An external device that receives signals from the PC System.
output point
The point at which an output leaves the PC System. Output points correspond
physically to terminals or connector pins.
output signal
A signal being sent to an external device. Generally an output signal is said to
exist when, for example, a connection point goes from low to high voltage or from
a nonconductive to a conductive state.
overflow
The state where the capacity of a data storage location has been exceeded.
overseeing
Part of the processing performed by the CPU Unit that includes general tasks
required to operate the PC.
overwrite
Changing the content of a memory location so that the previous content is lost.
parity
Adjustment of the number of ON bits in a word or other unit of data so that the
total is always an even number or always an odd number. Parity is generally
used to check the accuracy of data after being transmitted by confirming that the
number of ON bits is still even or still odd.
parity check
Checking parity to ensure that transmitted data has not been corrupted.
PC
An acronym for Programmable Controller.
PC configuration
The arrangement and interconnections of the Units that are put together to form
a functional PC.
PCB
An acronym for printed circuit board.
148
Glossary
PC Link Subsystem
All of the PCs that share the same part of the LR are in a PC Link System.
PC Link Subsystems exist within a PC Link System when one or more of the
PCs in the System has two PC Link Units mounted to it. If Subsystems exist,
the System is considered a Multilevel PC Link System.
PC Link System
A System in which PCs are connected through PC Link Units to enable them
to share common data areas, i.e., each of the PCs writes to certain words in
the LR area and receives the data of the words written by all other PC Link
Units connected in series with it.
PC Link Unit
The Unit used to connect PCs in a PC Link System.
PC System
With building-block PCs, all of the Racks and independent Units connected
directly to them up to, but not including the I/O devices. The limits of the PC
System on the upper end is the PC and the program in its CPU Unit and on
the lower end, I/O Units, Special I/O Units, Optical I/O Units, Remote Terminals, etc.
peripheral device
Devices connected to a PC System to aid in system operation. Peripheral
devices include printers, programming devices, external storage media, etc.
peripheral servicing
Processing signals to and from peripheral devices, including refreshing, communications processing, interrupts, etc.
polled unit
Any of the Units in a PC Link system that share common data areas except
for the Polling Unit.
polling
A method in which one element in a system monitors changes in the contents of certain data words to maintain accurate records of the contents. In a
PC Link System, polling is performed by the polling unit to maintain common
data areas among PCs.
polling unit
The PC Link Unit in a PC Link System that handles data transmissions to
maintain common data areas within the PCs. In a PC Link System, the polling unit always shares common data areas with the polled units.
printed circuit board
A board onto which electrical circuits are printed for mounting into a computer or
electrical device.
PROGRAM mode
A mode of operation that allows inputting and debugging of programs to be carried out, but that does not permit normal execution of the program.
Programmable Controller
A computerized device that can accept inputs from external devices and generate outputs to external devices according to a program held in memory.
Programmable Controllers are used to automate control of external devices.
Although single-unit Programmable Controllers are available, building-block
Programmable Controllers are constructed from separate components. Such
Programmable Controllers are formed only when enough of these separate
components are assembled to form a functional assembly, i.e., there is no
one individual Unit called a PC.
Programming Console
The simplest form or programming device available for a PC. Programming
Consoles are available both as hand-held models and as CPU Unit-mounting
models.
programming device
A peripheral device used to input a program into a PC or to alter or monitor a
program already held in the PC. There are dedicated programming devices,
such as Programming Consoles, and there are non-dedicated devices, such
as a host computer.
149
Glossary
protocol
The parameters and procedures that are standardized to enable two devices to
communicate or to enable a programmer or operator to communicate with a
device.
Rack
An assembly of various Units on a Backplane that forms a functional unit in a
building-block PC System. Racks include CPU Racks, Expansion I/O Racks,
I/O Racks, and Slave Racks.
read word
A word in the LR area that contains data transferred from another PC in a PC
Link System. A read word cannot be written to by the PC.
refresh
The process of updating output status sent to external devices so that it agrees
with the status of output bits held in memory and of updating input bits in memory
so that they agree with the status of inputs from external devices.
relay-based control
The forerunner of PCs. In relay-based control, groups of relays are wired to
each other to form control circuits. In a PC, these are replaced by programmable circuits.
reserved bit
A bit that is not available for user application.
reserved word
A word in memory that is reserved for a special purpose and cannot be accessed
by the user.
Restart Bit
A bit used to restart a Unit mounted to a PC.
rightmost (bit/word)
The lowest numbered bits of a group of bits, generally of an entire word, or the
lowest numbered words of a group of words. These bits/words are often called
least-significant bits/words.
rising edge
The point where a signal actually changes from an OFF to an ON status.
RS-232C interface
An industry standard for serial communications.
RS-422 interface
An industry standard for serial communications.
RTS signal
Request To Send: the BASIC Unit can be programmed to assert this signal when
it wishes to send data through a communications port.
RUN mode
The operating mode used by the PC for normal control operations.
self diagnosis
A process whereby the system checks its own operation and generates a warning or error if an abnormality is discovered.
serial polling
A polling method in which each device being polled is polled one at a time in
sequence.
series
A wiring method in which Units are wired consecutively in a string. In Link
Systems wired through Link Adapters, the Units are still functionally wired in
series, even though Units are placed on branch lines.
Single-level PC Link
System
A PC Link System in which there is no PC with more than one PC Link Unit.
Single-link PC Link System
A PC Link System that connects only two PCs to each other.
Single-level SYSMAC LINK
System
A SYSMAC LINK System in which there is no PC with more than one SYSMAC LINK Unit.
150
Glossary
slot
A position on a Rack (Backplane) to which a Unit can be mounted.
Special I/O Unit
A dedicated Unit that is designed for a specific purpose. Special I/O Units
include Position Control Units, High-Speed Counter Units, Analog I/O Units,
etc.
switching capacity
The voltage/current that a relay can switch on and off.
SYSMAC LINK Network
All the PCs connected in series via SYSMAC LINK Units that can join
together to form data links or read and write data back and forth.
SYSMAC LINK System
A Link System that contains two or more SYSMAC LINK Networks.
SYSMAC/NET Link
Read/Write Instructions
Programming instructions used to transfer data between PC connected in a
SYSMAC LINK Network or NET Link Subsystem. The write instruction acronym is SEND(90) and is used to transfer data to another PC. The read
instruction acronym is RECV(98) and is used to receive data from another
PC.
system configuration
The arrangement in which Units in a System are connected.
system error
An error generated by the system, as opposed to one resulting from execution of
an instruction designed to generate an error.
system error message
An error message generated by the system, as opposed to one resulting from
execution of an instruction designed to generate a message.
terminator
The code comprising an asterisk and a carriage return (* CR) which indicates the
end of a block of data in communications between devices. Frames within a multi-frame block are separated by delimiters. Also a Unit in a Link System designated as the last Unit on the communications line.
transmission distance
The distance that a signal can be transmitted.
Unit
In OMRON PC terminology, the word Unit is capitalized to indicate any product sold for a PC System. Though most of the names of these products end
with the word Unit, not all do, e.g., a Remote Terminal is referred to in a collective sense as a Unit. Context generally makes any limitations of this word
clear.
unit number
A number assigned to some Link Units and Special I/O Units to assign words
and sometimes other operating parameters to it.
user program
A program written by the user as opposed to programs provided with a product.
watchdog timer
A timer within the system that ensures that the cycle time stays within specified
limits. When limits are reached, either warnings are given or PC operation is
stopped depending on the particular limit that is reached.
WDT
See watchdog timer.
wire communications
A communications method in which signals are sent over wire cable.
Although noise resistance and transmission distance can sometimes be a
problem with wire communications, they are still the cheapest and the most
common, and perfectly adequate for many applications.
151
Glossary
word
A unit of data storage in memory that consists of 16 bits. All data areas consists
of words. Some data areas can be accessed only by words; others, by either
words or bits.
word address
The location in memory where a word of data is stored. A word address must
specify (sometimes by default) the data area and the number of the word that is
being addressed.
word allocation
The process of assigning I/O words and bits in memory to I/O Units and terminals in a PC System to create an I/O Table.
work bit
A bit in a work word.
work word
A word that can be used for data calculation or other manipulation in programming, e.g., LR words not used in a PC Link or NET Link System.
write word
A word written in the LR area by a PC in a PC Link System. The data of the
write words is transferred to the rest of the PCs that share common data
areas, i.e., the write words for one PC are read words for the rest of the PCs
in the PC Link System.
152
Index
A-B
applications, precautions, xiii
AR Area
reading, 90, 91
writing, 90
automatic generation of data link tables, 46
Auxiliary Power Supply Unit, 20
bits, controlling
cancelling forced-set and forced-reset bits, 102
force-setting and force-resetting bits, 101
broadcast test, 110, 115
Bus Connector, 25
bypass, failed node bypass function, 116
C
cables
Auxiliary Power Supply Unit, 22
connecting transmission cables, 26
characteristics, data link, 63
CIO Area, reading, 90, 91
clock
reading CV-series clock, 97
setting CV-series clock, 97
coaxial cable. See cables
command set
BROADCAST TEST DATA SEND, 110
BROADCAST TEST RESULTS READ, 110
CLOCK READ, 97
CLOCK WRITE, 97
CONTROLLER DATA READ, 95, 104
CONTROLLER STATUS READ, 95, 105
DATA LINK START, 103
DATA LINK STATUS READ, 108
ERROR CLEAR, 98
FILE MEMORY BLOCK READ, 99
FILE MEMORY BLOCK WRITE, 100
FILE MEMORY INDEX READ, 98
FORCED SET/RESET, 101
FORCED SET/RESET CANCEL, 102
HALT DATA LINK, 103
INTERNODE ECHO TEST, 109
MEMORY AREA READ, 90, 102
MEMORY AREA WRITE, 90
MULTIPLE MEMORY AREA READ, 91
NETWORK STATUS READ, 107
PROGRAM AREA READ, 92
PROGRAM AREA WRITE, 93
RESET, 104
RUN, 94
STOP, 94
memory area code, 89
PCs, 90–103
list, 87
response codes, 88
response format, 86
SYSMAC LINK Units, 103–110
list, 87
common link parameters, 48
CVSS, 112
communications
specifications, 137
testing
broadcast test, 110, 115
internode echo test, 109, 113
token bus, 36
cycle time, data link refreshing, 37
data areas. See Memory Areas
Communications Boards, 20, 25
data exchange timing, 65
communications cycle, 36
data link, 44
activating, 45, 58
characteristics, 63
combining SYSMAC LINK Units, 55
common link parameters, 48
communications cycle time, 63
controlling, 58
creating, 45
data exchange timing, 65
data link area, definition, 44
Data Link Status Flag, 60
data link table generation
automatic, 62
manual, 62
errors, 122
example, 55
halting, 58, 103
I/O response time, 66
communications cycle time, 40
data link, 63
compatibility, 6
completion status. See end codes
counters
changing PV, 90
reading Completion Flag forced status, 102
reading Completion Flag status, 90, 91
reading PV, 90, 91
CV-mode commands
errors, 119
response codes, errors, 119
CV-mode commands
command format, 86
D
153
Index
precautions, 59
reading, 77
reading data link status, 108
refresh parameters, 50
refreshing, 47
start-up node, 36
starting, 103
status flags, 60
table back-up, 50
tables
automatic generation, 46
definition, 44
examples, 51
manual generation, 48
troubleshooting, 125
write, 76
data links, refresh cycle time, 37
data read/write services, 74
data transfer area, 75
H-I
handling precautions, 130
Host Link Units, compatibility with SYSMAC LINK Units, 6
I/O response time, in data links, 66
indicators, 13
Auxiliary Power Supply Unit, 22
data link, 45
error indications, 118
indirect addressing, 77, 78
example, 82
inspection, 130
tools and equipment needed, 130
installation, 17, 22
precautions, xiii
instruction set, PC
RECV(98), 77
SEND(90), 76
internode echo test, 109, 113
delay times, 84
dimensions, 33
DM Area
reading, 90, 91
writing, 90
L-M
LED indicator. See indicators
Link Units, compatibility, 6
manual generation of data link tables, 48
maximum node number, 40
E-F
errors
clearing CV-series PC errors, 98
CV-mode commands, 119
data link, 122
data link table, 122
LED indications, 118
other, 122
SEND (90)/RECV (98), 119
failed node, bypassing, 116
file memory
reading the contents of, 99
writing the contents of, 100
maximum number of frames, 40
memory area code, 89
Memory Areas
designating addresses, 88
reading, 90, 91
reading forced contents, 102
writing, 90
model numbers
reading PC model number, 95
reading SYSMAC LINK Unit model number, 104
monitoring, remote, 112
mounting, 18
N-O
files, reading indices of blocks stored in file memory, 98
NET Link Units, compatibility with SYSMAC LINK Units, 6
FINS commands. See CV-mode commands
network
other OMRON network systems, 2
reading network status, 107
troubleshooting, 124
flags
Active Node Flags, 42
Communication Controller Error Flag, 42
Communications Error, 62, 63
Data Link Status, 62, 63
EEPROM Error Flag, 42
PC Fatal Error, 62, 63
PC Mode, 62, 63
RECV(98), Enable and Error Flags, 80
SEND(90), Enable and Error Flags, 80
frames, maximum number, 40
154
network parameters, 37, 131
conflicting, 41
initializing, 41
setting, 40
number of polled units, 40
operating environment, precautions, xiii
operating level, 7, 38
optical fiber cable. See cables
Index
P
PC
changing to PROGRAM mode, 94
changing to RUN mode, 94
compatible CPUs, 6
PC memory address. See Memory Areas
reading CV-series PC status, 95
reading various CV-series PC data, 95
example, 80
processing, 80
specifications, 137
Auxiliary Power Supply Unit, 20
standard models, 133
start-up node, definition, 36
status, data link, 60
polling unit, 4
backup, 115
definition, 36
setting, 39
switches, 14
DIP switch 1
accessing, 14
location on C1000H–SLK11/SLK21–V1, 10
location on C200HW–SLK13/14/23/24, 12
DIP switch 2, location on C200HW–SLK13/14/23/24, 12
node number, 14, 15
setting, 37
polling unit, 39
reset switch, 10
setting, 15
precautions, xi
applications, xiii
general, xii
handling, 130
interchanging SYSMAC LINK Units, 130
operating environment, xiii
safety, xii
SYSMAC LINK System
communications, 36
features, 3
multilevel, 5
number of PCs, 4
single-level system, 4
system configuration, 4
program
reading contents of program area words, 92
writing to program area words, 93
SYSMAC LINK Unit
components
C1000H–SLK11/SLK21–V1, 10
C200HW–SLK13/14/23/24, 12
dimensions, 33
interchanging, 130
reading various Unit data, 104
replacing, 131
PC Link Units, compatibility with SYSMAC LINK Units, 6
PC mode, at start-up, 38
polled units, number, 40
polling cycle, definition, 36
programming, remote, 112
R
SYSMAC LINK Units, combining, 55
RAS, 113
RECV (98), 77
delay time, 85
errors, 119
example, 80
processing, 80
refresh cycle time, 37
refresh of data link area, 47
remote monitoring, 112
remote programming, 112
resetting, SYSMAC LINK Unit, 104
response codes
for CV-mode commands, 88
for SEND(90) and RECV(98), 79
response time. See I/O response time
T-W
test, 115
broadcast, 110, 115
internode echo, 109, 113
timers
changing PV, 90
reading Completion Flag forced status, 102
reading Completion Flag status, 90, 91
reading PV, 90, 91
timing
data exchange, 65
SEND(90) and RECV(98), 80
token, definition, 36
token bus communications, definition, 36
token cycle, definition, 36
S
safety precautions. See precautions
SEND (90), 76
delay time, 84
errors, 119
transmission cycle time
changing, 65
definition, 37
troubleshooting, 124
wiring, 22
write, 76
155
Revision History
A manual revision code appears as a suffix to the catalog number on the front cover of the manual.
Cat. No. W174-E1-07
Revision code
The following table outlines the changes made to the manual during each revision. Page numbers refer to the
previous version.
Revision code
Date
1
August 1990
2
July 1992
2A
November 1992
3
August 1994
Revised content
Original production
Major rewrite for new version of product.
Information on CV-mode commands and SYSMAC LINK Units using optical fiber cable was added.
Page 22: Diagram and note at bottom of page corrected.
C200H-SLK11 and C200H-SLK21-V1 have been upgraded to C200HS-SLK12 and C200HS-SLK22. Backplane model
numbers updated. Scan time changed to cycle time throughout the manual.
Pages 2, 3, 38, 43, 44, 46, 50, 51, 53, 57, 58, 64, 98, 101, 109: “Host computer” changed to “CVSS” when related to
the SYSMAC LINK.
Pages 2, 3, 4, 47, 49, 98: “LSS” changed to “FIT” when related to the SYSMAC LINK.
Pages 4, 5, 24, 25, 104, 109, 110, 111, 112, and 117: Terms unified to “Terminator” and “F Adapter.”
Page 5: “Compatibility with other PCs” updated.
Pages 6, 7: “Compatibility with other Link Units” updated.
Page 22: C200H Power Supply Unit information was corrected.
Page 24: Model number correction. C200H-TL001 Attachment Stirrup added.
Page 25: C200H-TL001 Attachment Stirrup added.
Pages 31, 32: Models changed to C200H-SLK11 and C200H-SLK21-V1. C200H-TL001 Attachment Stirrup added.
Page 34: Second paragraph of “Start-up Node” was rewritten.
Page 39: Text added to Setting Network Parameters.
Page 44: DM area information corrected in the top table.
Pages 44, 48: CV Series added to the “Max. number of linked words (in Network)” in the table.
Page 46: Sentence was added to the bottom of the page.
Pages 46, 49: “Software” changed to “CVSS.”
Page 49: Note added.
Page 59: Data Exchange timing diagram corrected.
Pages 60 to 62: Minimum and maximum response time diagrams and descriptions corrected. Two cases added.
Page 64: An addition about the SYSMAC LINK Support Board in Computer Transmission.
Page 65: Data transfer area information added.
Page 66: Note 4 added.
Page 67: Note 3 added.
Page 69: Indirect Addressing example added.
Page 73: List to CV-mode commands for PCs corrected.
Page 80: Parameters for RUN corrected.
Page 98: C200H-IP006 Peripheral Interface Unit added to Peripheral Device Connection. LSS and CVSS information
added.
Pages 101, 102: Model number change.
Page 102: Caution has been added.
Page 114: A precaution on interchanging SYSMAC LINK Units added.
Page 121: Weight and notes added to the table.
3A
October 1994
Page 110: Information of support software capabilities corrected (6 locations).
4
August 1996
New version of manual for C200HX/HG/HE.
All references to FIT have been removed or replaced with references to SSS.
Section of precautions added before section 1 and adjustments made to signal words for precautions.
Page 16: Pin functions of pin 82 of the top table and 42 of the bottom table have been corrected.
5
January 1998
Pages 6, 20, 129, 130: “C200HW-COM04” changed to “C200HW-COM04-EV1.”
Pages 7, 8, 19, 38: PC Card Unit information for C200HX/HG/HE PCs added.
Page 25: C200HW-CE012 Bus Connector and Communications Board information added.
Page 129: C200HW-CE012 Bus Connector added to the list in Related Items.
157
Revision History
Revision code
Date
6
March 2000
Revised content
Updated the Precautions.
Page 60: Added information on data link status, including table describing flag operation and programming examples.
Page 110: Added comment that remote programming or monitoring of CVM1 and CV-series PCs is not possible.
Page 116: Changed description of ERC indicator.
Page 121: Changed description of Communications Controller error.
Page 133: Changed description of send/receive buffer capacity.
07
September 2003
Page xiii: “Power Supply Units” added in one place.
Page 28: Model numbers changed in several places.
Page 29: Changes made to table and another table added.
Page 41: Information on conflicting network parameters changed.
Page 67: Numerical changes made in three places.
Page 75: Information on NETWORK READ/WRITE instructions changed.
Page 91: Line added at bottom of page.
Page 134: Model numbers changed in several places in table at bottom of page and note added.
158
OMRON Corporation
FA Systems Division H.Q.
66 Matsumoto
Mishima-city, Shizuoka 411-8511
Japan
Tel: (81)55-977-9181/Fax: (81)55-977-9045
Regional Headquarters
OMRON EUROPE B.V.
Wegalaan 67-69, NL-2132 JD Hoofddorp
The Netherlands
Tel: (31)2356-81-300/Fax: (31)2356-81-388
OMRON ELECTRONICS LLC
1 East Commerce Drive, Schaumburg, IL 60173
U.S.A.
Tel: (1)847-843-7900/Fax: (1)847-843-8568
OMRON ASIA PACIFIC PTE. LTD.
83 Clemenceau Avenue,
#11-01, UE Square,
Singapore 239920
Tel: (65)6835-3011/Fax: (65)6835-2711
Authorized Distributor:
Cat. No. W174-E1-07
Note: Specifications subject to change without notice.
Printed in Japan
No. 6182
OMRON Corporation
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 NONINFRINGEMENT, 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.
1
No. 6182
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.
2
No. 6182
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.
3
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