Allen-Bradley 1747-ASB Remote I/O Adapter User Manual
Below you will find brief information for Remote I/O Adapter 1747-ASB. The 1747-ASB module is an SLC 500 single-slot, RIO communication link module. It occupies the first slot (slot 0) of a 1746 remote chassis, where the SLC processor normally resides. The 1747-ASB module is an adapter, or slave, on the RIO link, and the master of the remote chassis and remote expansion chassis it is installed in. Remote expansion chassis are optional. It acts as a gateway between the scanner and the I/O modules residing in the remote chassis and remote expansion chassis. The 1747-ASB module maps the image of the I/O modules in its remote chassis and remote expansion chassis directly to the SLC or PLC processor image.
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Remote I/O Adapter
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Catalog Number 1747-ASB
User Manual
Important User Information
Because of the variety of uses for the products described in this publication, those responsible for the application and use of these products must satisfy themselves that all necessary steps have been taken to assure that each application and use meets all performance and safety requirements, including any applicable laws, regulations, codes and standards. In no event will Rockwell Automation be responsible or liable for indirect or consequential damage resulting from the use or application of these products.
Any illustrations, charts, sample programs, and layout examples shown in this publication are intended solely for purposes of example. Since there are many variables and requirements associated with any particular installation, Rockwell Automation does not assume responsibility or liability (to include intellectual property liability) for actual use based upon the examples shown in this publication.
Allen-Bradley publication SGI-1.1, Safety Guidelines for the
Application, Installation and Maintenance of Solid-State Control
(available from your local Rockwell Automation office), describes some important differences between solid-state equipment and electromechanical devices that should be taken into consideration when applying products such as those described in this publication.
Reproduction of the contents of this copyrighted publication, in whole or part, without written permission of Rockwell Automation, is prohibited.
Throughout this publication, notes may be used to make you aware of safety considerations. The following annotations and their accompanying statements help you to identify a potential hazard, avoid a potential hazard, and recognize the consequences of a potential hazard:
WARNING
!
Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss.
ATTENTION
!
Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss.
IMPORTANT
Identifies information that is critical for successful application and understanding of the product.
Allen-Bradley is a trademark of Rockwell Automation
Summary of Changes
Summary of Changes
The information below summarizes the changes to this manual since the last printing as Publication 1747-6.13 - December 1996.
To help you find new information and updated information in this release of the manual, we have included change bars as shown to the right of this paragraph.
New Information
For This New Information See Page
Updated table of compatible scanners
Updated table of compatible RIO adapters
Updated list of compatible modules
Added primary/complementary chassis information for SW2
Clarified DIP SW setting
C-Tick certification
4-5
A-1
1 Publication 1747-UM006B-EN-P - June 2003
2 Summary of Changes
Publication 1747-UM006B-EN-P - June 2003
i
Table of Contents
Preface
Overview
Who Should Use this Manual- . . . . . . . . . . . . . . . . . . . . . . . . 1
Purpose of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Contents of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Terms and Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Common Techniques Used in this Manual . . . . . . . . . . . . . . . 5
Rockwell Automation Support . . . . . . . . . . . . . . . . . . . . . . . . 6
Your Questions or Comments on this Manual . . . . . . . . . . 6
Chapter 1
1747-ASB Module Overview . . . . . . . . . . . . . . . . . . . . . . . 1-1
Remote I/O Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
How The Scanner Interacts With Adapters . . . . . . . . . . 1-2
Scanner I/O Image Division . . . . . . . . . . . . . . . . . . . . . 1-4
Crossing Logical Rack Boundaries. . . . . . . . . . . . . . . . . 1-4
Creating More Than One Logical Device by
Crossing a Logical Rack Boundary . . . . . . . . . . . . . . . 1-5
Transferring Data With RIO Discrete and Block Transfers 1-6
RIO Discrete Transfer Example. . . . . . . . . . . . . . . . . . . 1-7
Physical and Logical RIO Link Specifications . . . . . . . . . 1-8
Extended Node Capability . . . . . . . . . . . . . . . . . . . . . . 1-8
Compatible RIO Scanners. . . . . . . . . . . . . . . . . . . . . . . 1-9
Compatible RIO Adapters . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Compatible Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
1747-ASB Module Feature . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Hardware Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Status Display and LEDs. . . . . . . . . . . . . . . . . . . . . . . . 1-11
DIP Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
RIO Link and Processor Restart Lockout Connector . . . . 1-13
Door Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
Self-Locking Tabs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
Cable Tie Slots. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
Chapter 2
Quick Start for Experienced Users
Required Tools and Equipment . . . . . . . . . . . . . . . . . . . . . 2-1
Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
SW1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
SW2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
SW3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Publication 1747-UM006B-EN-P - June 2003
ii Table of Contents
Addressing
Configuration
Chapter 3
Chassis Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Slot Numbering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Addressing I/O Modules . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
2-Slot Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
2-Slot Addressing Considerations . . . . . . . . . . . . . . . . . 3-5
2-Slot Addressing Examples . . . . . . . . . . . . . . . . . . . . . 3-6
1-Slot Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
1-Slot Addressing Considerations . . . . . . . . . . . . . . . . . 3-8
1-Slot Addressing Examples . . . . . . . . . . . . . . . . . . . . . 3-9
1/2-Slot Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
1/2-Slot Addressing Considerations . . . . . . . . . . . . . . . . 3-11
1/2-Slot Addressing Examples. . . . . . . . . . . . . . . . . . . . 3-12
How I/O Module Images Are Mapped . . . . . . . . . . . . . . . . 3-13
How Discrete I/O Modules Are Mapped . . . . . . . . . . . . 3-13
How Specialty I/O Module Images Are Mapped . . . . . . 3-14
When Block Transfer Mode is Selected . . . . . . . . . . . . . 3-14
When Discrete Mode is Selected. . . . . . . . . . . . . . . . . . 3-15
Chapter 4
DIP Switch Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
DIP Switch SW1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Logical Group Number (SW1-7,8) . . . . . . . . . . . . . . . . . 4-4
DIP Switch SW2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Primary/Complementary Chassis (SW2-3) . . . . . . . . . . . 4-5
Reserved (SW2-4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Special Image and Chassis Size Considerations . . . . . . . . . . 4-13
Not Enough 1747-ASB Module Image to Map All of the
Available Slots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
1747-ASB Image Size Exceeds Slot Requirements. . . . . . 4-14
One Slot of Pair is Present, and 1747-ASB Module Image is
Available for Both Slots . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Both Slots Of A Pair Are Available But There Is Only Enough
1747-ASB Module Image Space Available For One Slot . 4-15
DIP Switch SW3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Processor Restart Lockout (SW3-2) . . . . . . . . . . . . . . . . 4-17
Addressing Mode (SW3-5,6) . . . . . . . . . . . . . . . . . . . . . 4-20
Specialty I/O Mode (SW3-7) . . . . . . . . . . . . . . . . . . . . . 4-21
I/O Module Keying (SW3-8) . . . . . . . . . . . . . . . . . . . . . 4-21
Switch Setting Summary . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22
SW2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22
SW3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23
Publication 1747-UM006B-EN-P - June 2003
Installation and Wiring
Start-Up and Operation
Troubleshooting
Table of Contents iii
Chapter 5
European Union Direct Compliance. . . . . . . . . . . . . . . . . . 5-1
EMC Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Installing the1747-ASB Module . . . . . . . . . . . . . . . . . . . . . 5-1
Link Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Correct Link Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Incorrect Link Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Link Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Wiring a Processor Restart Lockout Switch . . . . . . . . . . . . . 5-5
I/O Module Addressing Labels. . . . . . . . . . . . . . . . . . . . . . 5-6
Using a PLC as a Master . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Using an SLC as a Master . . . . . . . . . . . . . . . . . . . . . . . 5-6
Octal Label Kit Installation. . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Applying the Octal Filter Label . . . . . . . . . . . . . . . . . . . 5-7
Applying the Octal Door Label . . . . . . . . . . . . . . . . . . . 5-7
Octal Kit and I/O Module Information . . . . . . . . . . . . . 5-8
Chapter 6
System Start-Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Powerup and Initialization Sequences . . . . . . . . . . . . . . . . 6-1
Save Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Check Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Communication Exception . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Inhibit Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Remote Expansion Chassis Power Loss . . . . . . . . . . . . . . . 6-6
Invalid RIO Link Transfers . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
RIO Discrete or Block Transfers To Empty or
Nonexistent Chassis Slots . . . . . . . . . . . . . . . . . . . . . . 6-6
RIO Discrete Transfers To Block Transfer Chassis Slots . 6-7
RIO Block Transfers To Discrete Chassis Slots . . . . . . . . 6-7
Invalid Length RIO Block Transfers. . . . . . . . . . . . . . . . 6-7
Testing the 1747-ASB Module . . . . . . . . . . . . . . . . . . . . . . 6-7
I/O Module Insertion into a Slot . . . . . . . . . . . . . . . . . . 6-9
I/O Module Removal from a Scanned Slot. . . . . . . . . . . 6-9
I/O Module Removal from an Unscanned Slot. . . . . . . . 6-10
Chapter 7
Troubleshooting Introduction . . . . . . . . . . . . . . . . . . . . . . 7-1
Contacting Rockwell Automation . . . . . . . . . . . . . . . . . . . . 7-2
Status Operating Codes for Normal Operating Conditions . . 7-2
Error Codes for Error Conditions . . . . . . . . . . . . . . . . . . . . 7-3
DIP Switch Configuration Mismatch Fault Codes - Codes
1 and 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
Publication 1747-UM006B-EN-P - June 2003
iv Table of Contents
Application Examples
Specifications
Differences Between the
1747-ASB Module and the
1771-ASB Series C Module
DIP Switch and Address
Configuration Worksheets
Index
I/O Module Configuration Mismatch
Fault Codes - Code 3 . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
I/O Runtime Fault Codes - Code 4 . . . . . . . . . . . . . . . . 7-8
Chapter 8
Basic SLC 500 Example Using and RIO Scanner . . . . . . . . . 8-1
RIO Device Configuration . . . . . . . . . . . . . . . . . . . . . . 8-2
SLC Processor Image . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
1747-ASB Module Configuration Details . . . . . . . . . . . . 8-4
1747-ASB Module I/O Mapping Details . . . . . . . . . . . . . 8-4
RIO Address Label Examples . . . . . . . . . . . . . . . . . . . . 8-5
Application Example Program . . . . . . . . . . . . . . . . . . . 8-7
Basic SLC 500 Example Using and RIO Scanner . . . . . . . . . 8-7
RIO Device Configuration . . . . . . . . . . . . . . . . . . . . . . 8-9
SLC Processor Image . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10
1747-ASB Module 1 Configuration Details . . . . . . . . . . . 8-10
1747-ASB Module 2 Configuration Details . . . . . . . . . . . 8-11
1747-ASB Module 1 I/O Mapping Details . . . . . . . . . . . 8-12
1747-ASB Module 2 I/O Mapping Details . . . . . . . . . . . 8-12
RIO Address Label Examples . . . . . . . . . . . . . . . . . . . . 8-13
Application Example Program . . . . . . . . . . . . . . . . . . . 8-15
PLC-5 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-16
RIO Device Configuration . . . . . . . . . . . . . . . . . . . . . . 8-17
PLC Processor Image . . . . . . . . . . . . . . . . . . . . . . . . . . 8-18
1747-ASB Module 1 Configuration Details . . . . . . . . . . . 8-19
1747-ASB Module 2 Configuration Details . . . . . . . . . . . 8-20
1747-ASB Module 1 I/O Mapping Details . . . . . . . . . . . 8-21
1747-ASB Module 2 I/O Mapping Details . . . . . . . . . . . 8-22
RIO Address Label Examples . . . . . . . . . . . . . . . . . . . . 8-23
Application Example Program . . . . . . . . . . . . . . . . . . . 8-24
Appendix A
Appendix B
Appendix C
Publication 1747-UM006B-EN-P - June 2003
1
Who Should Use this
Manual-
Preface
Read this preface to familiarize yourself with the rest of the manual.
This preface covers the following topics:
• who should use this manual
• the purpose of this manual
• terms and abbreviations
• conventions used in this manual
•
Rockwell Automation support
Use this manual if you are responsible for designing, installing, programming, or troubleshooting control systems that use
Allen-Bradley small logic controllers.
You should have a basic understanding of PLC
®
and SLC
®
500 products. You should understand programmable controllers and be able to interpret the ladder logic instructions required to control your application. If you do not, contact your local Allen-Bradley
® representative for information on available training courses before using this product.
Purpose of this Manual
This manual is a learning and reference guide for the remote I/O adapter module. It describes the procedures you use to address, configure, install, and operate the 1747-ASB remote I/O adapter module.
Contents of this Manual
2
3
Chapter
1
Title
Preface
Overview
Quick Start for
Experienced Users
Addressing
Contents
Describes the purpose, background, and scope of this manual. Also specifies the audience for whom this manual is intended.
Explains and illustrates the theory behind the
1747-ASB module's operation. Covers hardware and software features, compatible devices, and setup.
Serves as a Quick Start Guide for the 1747-ASB module.
Gives a chassis overview, and explains slot numbering, I/O module image mapping, 2-slot,
1-slot, and 1/2-slot addressing.
Publication 1747-UM006B-EN-P - June 2003
2 Preface
4
5
6
7
Configuration
Installation and
Wiring
Start-up and
Operation
Troubleshooting
Contains DIP switch information, and shows odd size chassis and image conditions.
Provides installation procedures and wiring guidelines.
Explains powerup and initialization sequences, normal operation, communication exceptions, remote expansion power loss, invalid RIO link transfers, and testing the 1747-ASB module.
Shows how to interpret and correct problems with your 1747-ASB module.
8 Application Examples Examines both SLC 500 and PLC-5/40t applications using a 1747-ASB module. Gives examples of the ladder programming necessary to achieve the described result.
Appendix A Specifications
Appendix B Differences Between the 1747-ASB and
1771-ASB Series C
Modules
Contains 1747-ASB and RIO link specifications, as well as throughput information.
Provides a point-by-point comparison of the 1747 and 1771 ASB modules.
Appendix C Worksheets Contains worksheets for setting the 1747-ASB module's DIP switches and addressing remote
I/O modules with an SLC processor.
Related Documentation
The following documents contain additional information concerning
Allen-Bradley SLCt and PLC products. To obtain a copy, contact your local Allen-Bradley office or distributor.
For Read This Document
An overview of the SLC 500 family of products
A description on how to install and use your Modular
SLC 500 programmable controller
Information regarding the use of a 1747-KE module as a communications interface
Information regarding the use of the 1747-DCM as a remote
I/O device
SLC 500 System Overview
Installation & Operation Manual for Modular
Hardware Style Programmable Controllers
User Manual
DH-485/RS-232C Interface Module User
Manual
Direct Communication Module User Manual
Document
Number
1747-SO001
1747-UM011
1747-6.12
1747-6.8
Publication 1747-UM006B-EN-P - June 2003
Preface 3
Information regarding the use of the 1747-SN SLC RIO scanner
Information regarding the use of analog modules with the
SLC 500 system
Information regarding programming your BASIC module
In-depth information on grounding and wiring Allen-Bradley programmable controllers
A description on how to install a PLC-5r system
A description of important differences between solid-state programmable controller products and hard-wired electromechanical devices
An article on wire sizes and types for grounding electrical equipment
RIO Scanner User Manual
SLC 500 Analog I/O Modules User Manual
SLC 500 BASIC Language Reference
Allen-Bradley Programmable Controller
Grounding and Wiring Guidelines
PLC-5 Family Programmable Controllers
Hardware Installation Manual
Application Considerations for Solid-State
Controls
National Electrical Code
1747-6.6
1746-6.4
1746-RM001
1770-4.1
1785-6.6.1
SGI-1.1
Published by the
National Fire
Protection
Association of
Boston, MA.
AG-7.1
A glossary of industrial automation terms and abbreviations Allen-Bradley Industrial Automation Glossary
The following terms and abbreviations are specific to this product.
For a complete listing of Allen-Bradley terminology, refer to the
Allen-Bradley Industrial Automation Glossary, Publication Number
AG-7.1.
Terms and Abbreviations
Adapter - Any physical device that is a slave on the RIO link.
Adapter Image - That portion of the scanner image assigned to an individual adapter. You configure the adapter image by assigning it a starting logical rack number, starting logical group number and the number of logical groups it uses. In the case of the 1747-ASB module, this is referred to as the 1747-ASB module image.
ASB Module - The Catalog Number 1747-ASB Remote I/O Adapter
Module. The 1747-ASB module is an adapter.
ASB Module Chassis - The chassis directly controlled by the
1747-ASB module. This includes the remote chassis and (if installed) two remote expansion chassis.
Discrete I/O Module - An I/O module used to sense or control two-state (ON/OFF) devices.
Inhibit - A function by which the scanner stops communicating with a logical device. The logical device will consider itself inhibited if it
Publication 1747-UM006B-EN-P - June 2003
4 Preface
Publication 1747-UM006B-EN-P - June 2003 does not receive communications from the scanner within a certain period of time.
I/O Module - Any 1746 or 1747 I/O module that is supported by the
1747-ASB module.
Local Expansion Chassis - A chassis that is connected to a local SLC chassis using a 1747-C9 (91.4 cm [36 in.]) or 1747-C7 (15.2 cm [6 in.]) cable.
Local PLC Chassis - The 1771 chassis that contains a PLC processor and scanner.
Local SLC Chassis - The chassis that contains the SLC processor and scanner.
Logical Device - Any portion of a logical rack that is assigned to a single adapter. Adapters may appear as more than one logical device.
Logical Group - A logical group consists of one input and one output word within a logical rack. A word consists of 16 bits, each bit represents one terminal on a discrete I/O module.
Logical Rack - A fixed section of the scanner image comprised of eight input words and eight output words.
Logical Slot - A logical slot consists of one input and one output byte within a logical group. A byte consists of 8 bits, each bit represents one terminal on a discrete I/O module.
PLC Chassis - A physical PLC rack that houses 1771 I/O modules and
PLC processors.
Remote Chassis - The chassis containing a 1747-ASB module and connected to the local SLC or PLC chassis via the RIO link.
Remote Expansion Chassis - A chassis that is connected to a remote chassis using a 1747-C9 (91.4 cm [36 in.]) or 1747-C7
(15.2 cm [6 in.]) cable.
Reset, Adapter Decide - Commands sent by the scanner to a logical device during an RIO discrete transfer. These commands instruct the logical device to reset all of its discrete outputs if hold last state is not selected, or to hold all of its discrete outputs in their last state if hold last state is selected.
Reset, Adapter Reset - Commands sent by the scanner to a logical device during an RIO discrete transfer. These commands instruct the logical device to reset all of its discrete outputs regardless of the hold last state selection.
Preface 5
RIO Block Transfer - The exchange of up to 64 words of data between the scanner and adapter. RIO block transfers only occur if you program them in your processor control program. The 1747-ASB module supports a block transfer of up to 8 words.
RIO Discrete Transfer - The exchange of image data between the scanner and adapter. RIO discrete transfers occur continuously whenever the scanner and adapter are communicating on the RIO link.
RIO Link - An Allen-Bradley communication system supporting high-speed serial transfer of Remote I/O (RIO) control information.
This link consists of one master one or more slaves.
Scanner - The communication master on the RIO link.
Scanner Image - The data table area within the scanner, used to exchange I/O information between the scanner and all the adapters on the RIO link. The scanner image is a portion of the SLC or PLC processor image.
SLC Chassis - A physical SLC rack that houses SLC processors, 1746 and 1747 I/O modules.
Slot - The physical location in any chassis used to insert I/O modules.
Specialty I/O Module - An I/O module other than a discrete I/O module (e.g., an analog module).
The following conventions are used throughout this manual:
Common Techniques Used in this Manual
•
Bulleted lists such as this one provide information, not procedural steps.
•
Numbered lists provide sequential steps or hierarchical information.
•
Italic type is used for emphasis.
•
Text in this font
indicates words or phrases you should type.
Allen-Bradley offers support services worldwide, with over 75
Sales/Support Offices, 512 authorized Distributors and 260 authorized
Systems Integrators located throughout the United States alone, plus
Allen-Bradley representatives in every major country in the world.
Publication 1747-UM006B-EN-P - June 2003
6 Preface
Rockwell Automation
Support
Before you contact Rockwell Automation for technical assistance, we suggest you please review the troubleshooting information contained in this publication first.
If the problem persists, call your local Rockwell Automation representative or contact Rockwell Automation in one of the following ways:
Phone
Internet
United
States/Canada
Outside United
States/Canada
⇒
1.440.646.5800
You can access the phone number for your country via the Internet:
1. Go to http://www.ab.com
2. Click on Product Support
(http://support.automation.rockwell.com)
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Information
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2. Click on Product Support
(http://support.automation.rockwell.com)
Your Questions or Comments on this Manual
If you find a problem with this manual, please notify us of it.
If you have any suggestions for how this manual could be made more useful to you, please contact us at the address below:
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P.O. Box 2086
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Publication 1747-UM006B-EN-P - June 2003
1
1747-ASB Module
Overview
Chapter
1
Overview
This chapter presents:
•
1747-ASB module overview
• remote I/O overview
• compatible devices
•
1747-ASB module features
• setup and operational overview
The 1747-ASB module is an SLC 500 single-slot, RIO communication link module. It occupies the first slot (slot 0) of a 1746 remote chassis, where the SLC processor normally resides.
The 1747-ASB module is an adapter, or slave, on the RIO link, and the master of the remote chassis and remote expansion chassis it is installed in. Remote expansion chassis are optional. It acts as a gateway between the scanner and the I/O modules residing in the remote chassis and remote expansion chassis. The 1747-ASB module maps the image of the I/O modules in its remote chassis and remote expansion chassis directly to the SLC or PLC processor image.
Output data is sent from the scanner of either the SLC or PLC local chassis to the 1747-ASB module across the RIO link. This data is automatically transferred to the output modules across the chassis backplane by the 1747-ASB module. Inputs from the input modules are collected via the backplane by the 1747-ASB module and sent back to the scanner across the RIO link. No user programming of the
1747-ASB module is necessary.
Supervisory SLC (or PLC)
Remote Chassis
1747-ASB Module
Remote Expansion Chassis
RIO Link
Outputs to
Modules
Inputs to
Modules
Remote Chassis
1747-ASB Module
Remote Chassis Remote Expansion Chassis
Publication 1747-UM006B-EN-P - June 2003
1-2 Overview
Remote I/O Overview
To better understand the use of the 1747-ASB module, you should have an understanding of the RIO link. The RIO link is an
Allen-Bradley communications system supporting high-speed transfer of control information. An RIO link consists of a single master device and one or more slave devices. The master device is referred to as the scanner. The slave devices are referred to as adapters (such as the
1747-ASB module).
RIO scanners and adapters work together to serially communicate PLC
or SLC processor data to remotely located I/O devices. PLC and SLC processors exchange inputs and outputs with scanners. Scanners exchange inputs and outputs with adapters located on the RIO link.
The adapter's control is based on the adapter type.
How The Scanner Interacts With Adapters
The scanner's function is to continuously scan the adapters on the RIO link in a consecutive manner. The scan consists of one or more RIO discrete transfers to each adapter on the RIO link.
RIO discrete transfers consist of the scanner sending output image data and communication commands to the adapter that instruct the adapter on how to control its output. (These include run, reset, adapter reset, and reset decide commands.) The adapter responds by sending input data to the scanner. The scanner performs as many RIO discrete transfers as necessary to update the entire adapter image. If
RIO discrete transfers do not occur, data is not exchanged between the scanner and adapter.
IMPORTANT
RIO discrete transfers are asynchronous with the processor scan.
Publication 1747-UM006B-EN-P - June 2003
Overview 1-3
Processor
SLC Local Chassis
Scanner
RIO Link
RIO Discrete
Transfers with
Adapter 1
RIO Discrete
Transfers with
Adapter 2
RIO Discrete
Transfers with
Adapter 3
RIO Discrete
Transfers with
Adapter 4
1747-ASB Module
Remote Chassis Remote Expansion Chassis
RediPANEL
1747-ASB Module
Remote Chassis Remote Expansion Chassis
RediPANEL
1747-ASB Module
PLC Local Chassis
Processor/Scanner
RIO Link
RIO Discrete
Transfers with
Adapter 1
RIO Discrete
Transfers with
Adapter 2
RIO Discrete
Transfers with
Adapter 3
RIO Discrete
Transfers with
Adapter 4
Remote Chassis
RediPANEL
Remote Expansion Chassis
1747-ASB Module
Remote Chassis Remote Expansion Chassis
Publication 1747-UM006B-EN-P - June 2003
1-4 Overview
Publication 1747-UM006B-EN-P - June 2003
Scanner I/O Image Division
The scanner allows each adapter to use a fixed amount (user defined) of the scanner's input and output image. Part of the processor's image is used by local I/O, the other portion is used by the scanner for remote I/O. For a PLC-5, logical rack 0 is dedicated for local I/O.
The scanner's remote I/O image is divided into logical racks and further divided into logical groups. A full logical rack consists of eight input and eight output image words. A logical group consists of one input and one output word in a logical rack. Each logical group is assigned a number from 0 to 7. The number of racks available for remote I/O depends on the scanner you are using.
Local I/O
Logical Rack 0
Remote I/O
(Scanner
Image)
Logical Rack 1
Logical Rack 2
Logical Rack 3
Processor I/O
Image
Logical Group 0
Logical Group 7
Scanner I/O
Image
Adapter
Image
The scanner image also contains the image of each adapter on the
RIO link. The adapter is assigned a portion of the scanner image, which is referred to as the adapter image.
Crossing Logical Rack Boundaries
Adapter image size is expressed in an even number of groups. For example, the 1747-ASB module image can be any size between 2 logical groups and 32 logical groups (4 logical racks), in 2 logical group increments.
If the adapter's image size is greater than 8 logical groups, the image crosses logical rack boundaries. If an adapter's image size is less than
8 logical groups, it too can cross a logical rack boundary depending upon the starting logical group number. The significance of crossing logical rack boundaries is discussed in the next section.
Overview 1-5
Scanner Input or Output Image
Bit Number (Octal)
Bit Number (Decimal)
Logical
Rack 0
Logical
Rack 1
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
17
15
10 7
8 7
0
0
Adapter
Image
Adapter image is 12 logical groups in size and crosses a logical rack boundary due to its size.
Scanner Input or Output Image
Bit Number (Octal)
Bit Number (Decimal)
Logical
Rack 0
Logical
Rack 1
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
17
15
10 7
8 7
0
0
Adapter
Image
Adapter image is 6 logical groups in size and crosses a logical
IMPORTANT
Due to SLC and PLC addressing differences, when the 1747-ASB module is used with an SLC processor, the image bit numbers are 0 to 7, 8 to 15 decimal.
When the 1747-ASB module is used with a PLC processor, the image bit numbers are 0 to 7, 10 to 17 octal. The I/O image figures, like the two above, indicate the type of image bit numbers used (octal, decimal, or both) throughout this manual.
Creating More Than One Logical Device by Crossing a Logical
Rack Boundary
RIO discrete transfers occur on a logical device basis, not an adapter basis. A logical device is any portion of a logical rack that is assigned to a single adapter.
When an adapter's image is more than one logical device, the scanner sees the single adapter as multiple adapters on the RIO link. The scanner communicates with each logical device independently, even if the logical devices are all assigned to one adapter. If an adapter image is more than one logical device, the following is true:
Not all of the adapter image is updated by the scanner at the same time. The number of logical devices determines the number of RIO discrete transfers that are needed to update the entire adapter image.
Publication 1747-UM006B-EN-P - June 2003
1-6 Overview
The adapter may receive different communication commands for each logical device. In this case, the adapter decides which command it responds to.
In this example, two RIO discrete transfers are required for the scanner to update the adapter image containing two logical devices.
Scanner Input or Output Image
Bit Number (Octal)
17 10 7 0
Bit Number (Decimal)
15 8 7 0
Logical
Rack 0
Logical
Rack 1
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Logical
Device
Logical
Device
Adapter
Image
To understand how an adapter's logical devices are assigned, use appendix D to determine the address configuration of your remote
I/O modules. You may then want to reassign certain adapters so their images do not cross logical rack boundaries, allowing the scanner to update their images in one RIO discrete transfer.
IMPORTANT
The 1747-ASB module always functions as one adapter on the RIO link, even though it may contain more than one logical device. For example, the
1747-ASB module does not begin normal operation until all of its logical devices are receiving RIO discrete transfers from the scanner.
Transferring Data With RIO Discrete and Block Transfers
Input and output image data and command information is quickly exchanged between a scanner and adapter using RIO discrete transfers. RIO discrete transfers are the simplest way a scanner and adapter communicate with each other. RIO discrete transfers, which are transparent to the user, consist of the scanner sending the output image data to the adapter, and the adapter transmitting input data to the scanner. Each RIO discrete transfer also contains scanner commands for the adapter.
Publication 1747-UM006B-EN-P - June 2003
Overview 1-7
RIO block transfers are initiated by a special command from the PLC processor, typically when large amounts of data must be exchanged with one specialty I/O module. Block transfers use the basic RIO discrete transfer mechanism of the RIO link. However, the actual transfer of data occurs asynchronous to the discrete transfers. It is possible for several discrete transfers to occur before a block transfer is processed.
RIO Discrete Transfer Example
This example illustrates how additional discrete transfers are required when an adapter image crosses logical rack boundaries. It consists of one scanner and three adapters. Adapter 1 requires one RIO discrete transfer from the scanner to update its entire image. Adapter 2 requires two RIO discrete transfers to update its image. Adapter 3 requires three RIO discrete transfers to update its image.
Logical
Rack 0
Logical
Rack 1
Logical
Rack 2
Logical
Rack 3
Scanner Input or Output Image
Bit Number (Octal)
Bit Number (Decimal)
17
15
10 7
8 7
0
0
Adapter 1
Logical Device 1
Adapter 2
Logical Device 1
Adapter 2
Logical Device 2
Adapter 3
Logical Device 1
Adapter 3
Logical Device 2
Adapter 3
Logical Device 3
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
(1)
(2)
(3) to scanner
Adapter 1 Configured As:
Starting Logical Rack: 0
Starting Logical Group: 0
Adapter Image Size: 6 logical groups
Adapter 2 Configured As:
Starting Logical Rack: 0
Starting Logical Group: 6
Adapter Image Size: 8 logical groups
Adapter 3 Configured As:
Starting Logical Rack: 1
Starting Logical Group: 6
Adapter Image Size: 18 logical groups
1747-ASB Module
(1) The scanner updates the adapter image in one RIO discrete transfer because the adapter image is contained within one logical rack.
(2) The scanner updates the adapter image in two RIO discrete transfers because the adapter image crosses a logical rack boundary making the adapter image appear as two logical devices.
(3) The scanner updates the adapter image in three RIO discrete transfers because the adapter image crosses two logical rack boundaries making the adapter image appear as three logical devices.
Publication 1747-UM006B-EN-P - June 2003
1-8 Overview
Physical and Logical RIO Link Specifications
The maximum number of adapters that your scanner can communicate with is determined by the scanner and adapter's physical and logical specifications, as described below:
Physical Specifications are the maximum number of adapters that can be connected to the scanner. For more information, see Extended
Node Capability below.
Logical Specifications for the scanner are the maximum number of logical racks the scanner can address, how the logical racks can be assigned, and whether the scanner can perform block transfers.
For adapters, logical specification refers to the maximum size of the adapter's RIO image.
Extended Node Capability
Both scanners and adapters can have extended node capability.
Extended node capability allows you to use an 82 Ohm termination resistor at both ends of the RIO link for all baud rates. Extended node capability also allows for up to 32 adapters to be placed on the RIO link.
Extended node capability can only be used if the scanner and all adapters on the RIO link have extended node capability. The
1747-ASB module has extended node capability.
The tables on pages 1-10 and 1-11 provide lists of compatible RIO scanners and adapters.
The 1747-ASB module is compatible with all Allen-Bradley scanners.
Scanners that do not support RIO block transfers do not work with all of the I/O modules supported by the 1747-ASB module. For example, the Catalog Number 1747-SN Series A, RIO Scanner does not work with a Catalog Number 1746-BAS, BASIC module because the scanner does not support RIO block transfer.
Publication 1747-UM006B-EN-P - June 2003
Overview 1-9
Compatible RIO Scanners
Refer to the appropriate scanner manual for details concerning physical and logical specifications.
Catalog Number
1771-SN
(1)
1785-L11B
(2)
1785-L20B
1785-L30x
1785-L40x
1785-L60x
1747-SN
Description
Sub I/O scanner for Mini-PLC
®
-2 and PLC-5 families
PLC-5/11™ (in scanner mode)
PLC-5/20™ (in scanner mode)
PLC-5/30™ (in scanner mode)
PLC-5/40 (in scanner mode)
PLC-5/60™ (in scanner mode)
SLC Remote I/O Scanner
(1) Revision D or later.
(2) Extended node capability.
(3) Series A scanner does not have block transfer.
Compatible RIO Adapters
The 1747-ASB module can physically reside on the RIO link with any other adapter. The following table lists the adapters available for use with an RIO link.
Catalog Number
1785-L30x
(1)(2)
1785-L40x
1785-L60x
1771-ASC
1771-ASB
(3)(4)
1771-RIO
1771-DCM
1747-DCM
2711-xx
1336-G2
1395-NA
Description
PLC-5/30 (in adapter mode)
PLC-5/40 (in adapter mode)
PLC-5/60 (in adapter mode)
Remote I/O Adapter Module
Remote I/O Adapter Module
Remote I/O Interface Module
Direct Communication Module
Direct Communication Module
PanelView™ Terminal
Remote I/O Adapter for 1336 AC Industrial Drives
Remote I/O Adapter for 1395 DC Industrial Drives
Remote I/O Adapter Module
(1) Extended node capability.
(2) In adapter mode.
(3) Series A, B, and C.
(4) Extended node capability for Series B and C.
Publication 1747-UM006B-EN-P - June 2003
1-10 Overview
Compatible Modules
The 1747-ASB module supports all SLC 5/01 compatible I/O modules
(class 0 and 1). The following modules can be placed in the remote chassis and remote expansion chassis:
• all discrete I/O modules
• all analog I/O modules
•
BASIC Modules, Catalog Number 1746-BAS, -BAST
(SLC 5/01 mode)
•
IMC 110 motion control module, Catalog Number 1746-HS
•
Direct Communication Module, Catalog Number 1747-DCM
•
Thermocouple/mV input modules, Catalog Number
1746-NT4, NT8
•
RTD/Resistance Modules, Catalog Number 1746-NR4, NR8
•
High Speed Counter Module, Catalog Number 1746-HSCE 2
1747-ASB Module Feature
The 1747-ASB module has the following features:
• communicates I/O data up to a maximum of 3040 meters
(10,000 feet)
• supports 57.6K, 115.2K, and 230.4K baud operation on the RIO link
• supports any mix of 1746 discrete or analog I/O
• controls up to 30 slots using remote expansion chassis
• allows use of 2-slot, 1-slot, and 1/2-slot addressing
• allows for image sizes between 2 and 32 logical groups (user selectable)
• incorporates enhanced operating status and troubleshooting capability using three 7-segment displays
• provides non-volatile memory for convenient I/O module slot keying
• provides discrete output module hold last state selection
• provides RIO link processor restart lockout selection
• incorporates extended node capability
• supports RIO block transfers and RIO discrete transfers for analog and other specialty I/O modules
• supports complementary I/O on the RIO link
Publication 1747-UM006B-EN-P - June 2003
Overview 1-11
Hardware Features
The 1747-ASB module's hardware features are highlighted below.
Detailed installation, operation, and troubleshooting information is contained in chapters 5, 6, and 7.
COMM LED
(Green)
Status Display
RIO Link and
Processor
Restart
Lockout
Connector
ADAPTER
COMM F AUL T
ST ATUS
(MSB)
LOGICAL
RACK
(LSB)
LOGICAL
GROUP
LINE 1
SHLD
LINE 2
NC
IN
RET
BAUD
RATE
PRI/COMP
RSV
(MSB)
IMAGE
SIZE
(LSB)
1747–ASB
HLS
PRL
RESP
LAST CHA
ADDR
MODE
SP MODE
KEY
FAULT LED
(Red)
Door
Label
Cable Tie Slots
DIP Switches
Manufacturing Test Plug
Self-Locking Tab
Status Display and LEDs
The Status Display provides alphanumeric status of the 1747-ASB module and RIO link. When combined with the COMM and FAULT
LEDs, they are very effective troubleshooting tools.
DIP Switches
The 1747-ASB module's three DIP switches allow you to configure the following items:
•
Starting Logical Rack Number (Logical Rack) - is the
1747-ASB module's starting logical rack number in the scanner's image.
•
Starting Logical Group Number (Logical Group) - is the
1747-ASB module's starting logical group number within the scanner's image.
Publication 1747-UM006B-EN-P - June 2003
1-12 Overview
•
Baud Rate (Baud Rate) - is the 1747-ASB module's RIO link communication rate. The baud rate must be the same for all adapters on the RIO link.
•
Primary/Complementary SLC Chassis (PRI/COMP) -
determines whether the 1747-ASB module appears to the scanner as a primary or complementary chassis.
•
Adapter Image Size (IMAGE SIZE) - indicates the I/O image size to be reserved for the adapter. It can be any size between 2 and 32 groups in two logical group increments.
•
Hold Last State (HLS) - determines whether the discrete output modules are held in their last state when:
– RIO link communication with the 1747-ASB module is lost.
– The scanner inhibits the 1747-ASB module.
– The scanner sends Reset, Adapter Decide commands to the
1747-ASB module.
•
Processor Restart Lockout (PRL) - determines whether the
1747-ASB module automatically resumes RIO link communications if communication is lost and then restored.
•
Link Response Time (RESP) - selects restricted or unrestricted
RIO link response time.
•
Last Chassis (LAST CHA) - When the 1747-ASB module is used with a PLC-2 or PLC-5, this switch indicates to the scanner that the 1747-ASB module is the last adapter mapped into the
1747-ASB module's highest logical rack.
•
Addressing Mode (ADDR MODE) - determines the 1747-ASB module's remote chassis and remote expansion chassis addressing mode. 2-slot, 1-slot, and 1/2-slot is available.
•
Specialty I/O Mode (SP MODE) - determines whether the
1747-ASB module discretely maps or block transfer maps specialty I/O modules in its remote chassis and remote expansion chassis.
•
I/O Module Keying (KEY) - determines if the 1747-ASB module saves its current I/O module and DIP switch configuration to its non-volatile memory, or if the 1747-ASB module compares the current I/O module and DIP switch configuration to the one saved in its non-volatile memory.
Publication 1747-UM006B-EN-P - June 2003
Overview 1-13
RIO Link and Processor Restart Lockout Connector
The 6-pin male connector attaches the 1747-ASB module to the RIO link and processor restart lockout device.
Door Label
The door label provides DIP switch and wiring information.
Self-Locking Tabs
Self-locking tabs secure the module in the rack. No tools are necessary to install or remove a module.
Cable Tie Slots
Cable tie slots can be used to secure the wiring cable to the module.
Publication 1747-UM006B-EN-P - June 2003
1-14 Overview
Publication 1747-UM006B-EN-P - June 2003
1
Chapter
2
Quick Start for Experienced Users
Required Tools and
Equipment
This chapter helps you to get started using the 1747-ASB module. We base the procedures here on the assumption that you have an understanding of PLC and SLC 500 products, as well as the RIO link.
You should understand electronic process control and be able to interpret the ladder logic instructions required to generate the electronic signals that control your application.
Because it is a start-up guide for experienced users, this chapter does
not contain detailed explanations about the procedures listed. It does, however, reference other chapters in this book where you can get more detailed information.
If you have any questions, or are unfamiliar with the terms used or concepts presented in the procedural steps, always read the
referenced chapters before trying to apply the information.
This chapter:
• tells you what tools and equipment you need
• lists preliminary considerations
• describes when to address and configure the module
• explains how to install and wire the module
• discusses system power-up procedures
Have the following tools and equipment ready:
• medium blade screwdriver
•
(2) 1/2 watt terminating resistors (See chapter 5, Installation and Wiring, for correct size.)
• an adequate length of RIO communication cable (Belden
Publication 1747-UM006B-EN-P - June 2003
2-2 Quick Start for Experienced Users
Procedures
1.
Check the contents of shipping box.
Unpack the shipping box making sure that the contents include:
•
Remote I/O adapter module (Catalog Number 1747-ASB)
• user manual (Publication 1747-6.13)
If the contents are incomplete, call your local Rockwell Automation representative for assistance.
-
Reference
2.
Ensure your chassis supports placement of the 1747-ASB module.
Check to see that your chassis supports placement of the adapter module by:
• reviewing the power requirements of your system (The adapter consumes 600 mA at 5VDC.)
• calculating the total load on the system power supply using the procedure described in Appendix B
Reference
Appendix A
(Specifications)
Appendix B
(Understanding your
SLC 500/1746
Control System)
3.
Choose the type of slot addressing you will use.
Select 1747-ASB addressing (i.e., 2-slot, 1-slot, or 1/2-slot). A configuration worksheet is included in appendix D to assist you in 1747-ASB image table addressing.
Important: Due to SLC and PLC addressing differences, when the 1747-ASB module is used with an SLC processor, the image bit numbers are 0 to 7, 8 to 15 decimal. When the
1747-ASB module is used with a PLC processor, the image bit numbers are 0 to 7, 10 to 17 octal.
Reference
Chapter 3
(Addressing)
Appendix D
(DIP Switch and
Address
Configuration
Worksheets)
4.
Configure the module using the DIP switches.
Set the DIP switches (located on the printed circuit board) to the desired setting. A worksheet is included in appendix D to assist you in DIP switch configuration.
Reference
Chapter 4
(Configuration)
Appendix D
(DIP Switch and
Address
Configuration
Worksheets)
Publication 1747-UM006B-EN-P - June 2003
Quick Start for Experienced Users 2-3
ON
OFF
ON
OFF
ON
OFF
SW1
SW2
SW3
Logical Rack Number Bit 5 (MSB)
Logical Rack Number Bit 4
Logical Rack Number Bit 3
Logical Rack Number Bit 2
Logical Rack Number Bit 1
Logical Rack Number Bit 0 (LSB)
Logical Group Number Bit 1 (MSB)
Logical Group Number Bit 0 (LSB)
Baud Rate Bit 1 (MSB)
Baud Rate Bit 0 (LSB)
Reserved
Primary/Complementary Chassis
ASB Module Image Size Bit 3 (MSB)
ASB Module Image Size Bit 2
ASB Module Image Size Bit 1
ASB Module Image Size Bit 0 (LSB)
Hold Last State
Processor Restart Lockout
Link Response
Last Chassis/PLC –3 Backup
Addressing Mode Bit 1 (MSB)
Addressing Mode Bit 0 (LSB)
Specialty I/O Mode
I/O Module Keying
SW1
Logical Rack Number
Logical Group Number
7
ON
ON
OFF
OFF
SW2
Baud Rate
8
ON
OFF
ON
OFF
2
4
6
Group
0 (default)
1
ON
ON
OFF
OFF
2
ON
OFF
ON
OFF
Baud Rate
57.6K (default)
115.2K
230.4K
INVALID
•
Primary/Complementary Chassis
ON=Primary
OFF=Complementary (Default)
•
1747-ASB Module Image Size
SW3
•
Hold Last State
ON=Hold Last State
OFF = Do Not Hold Last State (default)
•
Processor Restart Lockout
ON = Automatic Restart (default)
OFF = Processor Lockout
•
Link Response
ON = Restricted 9 (default)
OFF = Unrestricted
•
Last Chassis
ON = Not Last Chassis (default)
OFF = Last Chassis
•
Addressing Mode
5
ON
ON
OFF
6
ON
OFF
ON
Address
Invalid
1-slot Addressing
1/2 slot Addressing
OFF OFF 2-slot Addressing
•
Specialty I/O Mode
ON = Discrete (default)
OFF = Block Transfer
•
I/O Module Keying
ON = Save Mode (default)
OFF = Check Mode
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2-4 Quick Start for Experienced Users
5.
Insert the 1747-ASB module into the chassis.
ATTENTION
Never insert, remove or wire modules with power applied to the chassis or devices wired to the module.
Reference
Chapter 5
(Installation and
Wiring)
!
Make sure system power is off; then insert the adapter module into slot 0 of your 1746 chassis.
Card Guide
Module Release
6.
Connect all RIO link devices.
Ensure that you:
•
Daisy chain each RIO link device.
•
Ground the shield drain wire to the nearest chassis mounting bolt.
•
Connect the appropriate termination resistors on each end of the link.
Important: Do not connect anything to the NC (No Connect) terminal.
Reference
Chapter 5
(Installation and
Wiring)
Publication 1747-UM006B-EN-P - June 2003
Quick Start for Experienced Users 2-5
7.
(Optional) Wire a processor restart lockout switch.
ATTENTION
!
Cycling power on any 1747-ASB module chassis removes the processor restart lockout condition
(SW-2) by reinitializing the 1747-ASB module.
Reference
Chapter 5
(Installation and
Wiring)
Use a momentary switch (Class 1, Division 2) to short terminals IN and RET together.
Important: Do not connect anything to the NC (No Connect) terminal.
Momentary Switch
LINE 1 (Blue wire)
SHLD (Shield wire)
LINE 2 (Clear wire)
NC (No Connect)
IN
RET
14 to 24 gauge wire
(maximum 5 feet)
8.
Attach the appropriate I/O Module Addressing Labels.
Attach the Remote PLC or Remote SLC label to the outside bottom of each I/O module in your 1747-ASB chassis, as shown below. Fill out each label completely.
Reference
Chapter 5
(Installation and
Wiring)
Chapter 8
(Application
Examples)
INPUT INPUT
0 – 7 10 – 17
Rack Group(s)
I:
O:
BT Discrete
Remote PLC Label
0 – 7
SN Slot
SN Word(s)
8 – 15
BT Discrete
Remote SLC R System
Remote SLC Label
0 – 7
Rack
I:
O:
BT
10 – 17
Group(s)
Discrete
0 –7
SN Slot
SN Word(s)
8 – 15
BT Discrete
Remote SLC
R
System
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2-6 Quick Start for Experienced Users
9.
If using a PLC processor as a master, attach the octal labels.
The octal filter and door labels must be used when working with a PLC processor as a
master. A list of I/O modules that include an octal label kit can be found on page 5-8.
Adhere the octal labels over the existing decimal labels, as shown below.
INPUT
Decimal Filter Label Octal Filter Label
OCT AL
Octal Door Label
Reference
Chapter 5
(Installation and
Wiring)
1746–XXXX 1746–XXXX (OCT AL)
Decimal Door Label
10.
Go through the system start-up procedure.
ATTENTION
!
Never insert, remove or wire modules with power applied to the chassis or devices wired to the module.
Follow the steps below:
1. Cycle power one last time in save mode (SW3-8 ON).
2. Remove power from the system.
3. Remove the 1747-ASB module and set SW3-8 to the OFF position (check mode).
4. Replace the 1747-ASB module in slot 0.
5. Apply power to your system.
Reference
Publication 1747-UM006B-EN-P - June 2003
Quick Start for Experienced Users 2-7
11.
Check that the module is operating correctly.
During normal operation (PLC or SLC in Run mode), the 1747-ASB module appears as shown below:
Reference
Chapter 6
(Start-Up and
Operation)
ADAPTER
COMM F AULT
Chapter 7
(Troubleshooting)
Green COMM
LED is on.
Red F AULT
LED is off.
ST ATUS
Status display indicates a
run
condition.
Publication 1747-UM006B-EN-P - June 2003
2-8 Quick Start for Experienced Users
Publication 1747-UM006B-EN-P - June 2003
1
Chassis Overview
4-Slot
Chapter
3
Addressing
This chapter presents:
• slot numbering
•
2-slot, 1-slot, and 1/2-slot addressing
• how I/O module images are mapped
The 1747-ASB module controls 1 remote chassis and up to 2 remote expansion chassis with a maximum of 30 slots. Currently, there are four different types of chassis available.
7-Slot
Catalog Number 1746-A4
10-Slot
Catalog Number 1746-A7
13-Slot
Catalog Number 1746-A10
Catalog Number 1746-A13
The first chassis is referred to as the remote chassis. Up to two additional chassis, referred to as remote expansion chassis, can be connected to the remote chassis using a:
•
6 inch cable, Catalog Number 1746-C7
•
36 inch cable, Catalog Number 1746-C9
Each remote chassis and remote expansion chassis requires its own power supply.
Publication 1747-UM006B-EN-P - June 2003
3-2 Addressing
IMPORTANT
A 1747-ASB module fault occurs if the remote expansion chassis are not powered.
Catalog Number 1746-C9
Catalog Number 1746-P1
Remote Chassis
36 inch cable
Catalog Number 1746-P3
Remote Expansion Chassis
Catalog Number 1746-C7
Catalog Number 1746-P2
Slot Numbering
Remote Chassis
6 inch cable
Remote Expansion Chassis
Catalog Number 1746-P2
The 1747-ASB module is capable of controlling 30 slots. When expansion chassis are used, the 1747-ASB module treats all of the I/O modules as if they are installed in a single chassis.
The remote chassis and remote expansion chassis slots are numbered from 0 to 30. The 1747-ASB module must reside in slot 0. Slots numbered 31 and above cannot be used.
IMPORTANT
Installing modules in slots 31 and above causes a
1747-ASB module error.
Addressing I/O Modules
SLC and PLC processors address the I/O modules residing in the
1747-ASB module chassis by logical rack and logical group. Before using the 1747-ASB module, you should first understand slot addressing and how each module's image is mapped into the
1747-ASB module's image.
Publication 1747-UM006B-EN-P - June 2003
Addressing 3-3
Slot addressing refers to how each chassis slot is assigned a specific amount of the 1747-ASB module image. The amount depends on which type of slot addressing you choose; 2-slot, 1-slot, and 1/2-slot addressing is available, as shown below:
IMPORTANT
Due to SLC and PLC addressing differences, when the 1747-ASB module is used with an SLC processor, the image bit numbers are 0 to 7, 8 to 15 decimal.
When the 1747-ASB module is used with a PLC processor, the image bit numbers are 0 to 7, 10 to 17 octal.
2-Slot
Addressing
Slot 2
Input Image
Two slots are addressed as one logical group.
Output Image
Slot 1 Slot 2 Slot 1
1-Slot
Addressing
Input Image
One slot is addressed as one logical group.
Output Image
Slot 1 Slot 1
1/2-Slot
Addressing
Input Image
One slot is addressed as two logical groups.
Output Image
Slot 1 Slot 1
Publication 1747-UM006B-EN-P - June 2003
3-4 Addressing
2-Slot Addressing
When the 1747-ASB module is configured for 2-slot addressing, the processor addresses two chassis slots as one logical group. Each slot, beginning with slot 1, is sequentially assigned one byte (8 bits) of the
1747-ASB module's input and output image. Each terminal on a discrete I/O module installed in a slot is assigned a bit within the byte, beginning with the least significant bit. 2-slot addressing is designed to accommodate I/O modules whose image size is one byte or less.
Slot 1
Input Image
Slot 1 is assigned to the low byte of the first logical group of the 1747-ASB module ’s image, beginning with bit 0 (the LSB).
Output Image
17 10 7 0
1 5 1 4 1 3 1 2 11 1 0 9 8 7 6 5 4 3 2 1 0
Slot 1
Each terminal is assigned a bit, beginning with the least significant bit.
Octal
Decimal group 0
17 10 7 0
1 5 1 4 1 3 1 2 11 1 0 9 8 7 6 5 4 3 2 1 0
Slot 1
Each terminal is assigned a bit, beginning with the least significant bit.
Octal
Decimal group 0
Slot 2
Slot 2 is assigned to the high byte of the first logical group of the 1747-ASB module ’s image, beginning with bit 8 decimal, 10 octal.
Input Image Output Image
17 10 7 0
1 5 1 4 1 3 1 2 11 1 0 9 8 7 6 5 4 3 2 1 0
Slot 2
Octal
Decimal group 0
17 10 7 0
1 5 1 4 1 3 1 2 11 1 0 9 8 7 6 5 4 3 2 1 0
Slot 2
Each terminal is assigned a bit, beginning with the least significant bit.
Each terminal is assigned a bit, beginning with the least significant bit.
Octal
Decimal group 0
Publication 1747-UM006B-EN-P - June 2003
Addressing 3-5
Slot 1
Paired
To accommodate modules that require up to one word (16 bits) of input and/or output image, the 1747-ASB module pairs slots beginning with slot 1 (i.e., slot 1 is paired to slot 2, etc.). Slot pairing combines the low and high byte into a one word input and output image. This maximizes I/O image space, allowing you to install an input module in one slot and an output module in the other, each using up to 16 bits of the paired input and output images.
I
O
I = Input Module
O
= Output Module
Slot Pair
I
O
When a module is installed in slot 1 that requires one word of input image, slot 1 uses the input image normally assigned to slots 1 and 2. Slot 2, therefore, cannot use any of its input image. However, slot 2 can now use the output image normally assigned to slots 1 and 2, because slot 1 is not using its portion of the output image.
Input Image
17 10 7
1 5 1 4 1 3 1 2 11 1 0 9 8 7 6
0
5 4 3 2 1 0
Octal
Decimal
Group 0
Slot 1 Slot 1
When a module is installed in slot 2 that requires one word of output image, slot 2 uses the output image normally assigned to slots 1 and 2 (if slot 1 is not already using it).
The lesser slot number has priority over the greater.
Slot 2
Paired
Output Image
17 10 7 0
1 5 1 4 1 3 1 2 11 1 0 9 8 7 6 5 4 3 2 1 0
Octal
Decimal
Group 0
Slot 2 Slot 2
2-Slot Addressing Considerations
When the 1747-ASB module is configured for 2-slot addressing, you can use 4-, 8-, 16-point, combination, and specialty I/O modules.
If it is necessary to use 16-point modules, like modules (i.e., two input modules) cannot be installed as a pair. This is because each 16-point module uses a full word in the image. For this reason you must pair an input with an output module. 32-point modules cannot be used.
If the discrete mode is selected, specialty I/O modules with one word or less of input and output image are discretely mapped such as the
1747-KE. Specialty I/O modules with two or more words of input or output image are block transfer mapped.
If block transfer mode is selected, all specialty I/O modules are block transfer mapped regardless of their image size.
The 1747-ASB module can block transfer map a maximum of eight words.
Publication 1747-UM006B-EN-P - June 2003
3-6 Addressing
I = Input Module
O
= Output Module
2-Slot Addressing Examples
The following example illustrates how to map modules requiring:
•
one byte or less of input or output image
•
one word of input or output image
I
O
I
O
I
O
I
O
I I
O O
I
O
I
O
I
O
1746 Slot Numbering 0 1 2 3
Slot Pair
1 2
4 5 6 7 8 9
3 4 5
10 11 12 13 14 15 16 17 18
6 7 8 9
1747-ASB Input Image
Modules Requiring One Byte
In this example, the modules require one byte of input or output image.
Input modules do not have to be paired with output modules because, in the example to the right, only one byte of input or output image is required.
To use image space more efficiently, slot pairing can b used with 16-point I/O modules as shown below or
complementary I/O can be used. Refer to page 4-5.
17
15
Slot 2
Slot 4
Slot 6
Slot 8
Slot 10
Slot 12
Slot 14
Slot 16
Slot 18
10
8
7
7
Slot 1
Slot 3
Slot 5
Slot 7
Slot 9
Slot 11
Slot 13
Slot 15
Slot 17
0
0
Octal
Decimal
1747-ASB Output Image
17
15
Slot 2
Slot 4
Slot 6
Slot 8
Slot 10
Slot 12
Slot 14
Slot 16
Slot 18
10
8
7
7
Slot 1
Slot 3
Slot 5
Slot 7
Slot 9
Slot 11
Slot 13
Slot 15
Slot 17
0
0
Octal
Decimal
Slot Pair 1
Slot Pair 2
Slot Pair 3
Slot Pair 4
Slot Pair 5
Slot Pair 6
Slot Pair 7
Slot Pair 8
Slot Pair 9
= unused
Modules Requiring One Word
In this example, the modules require one word of input or output image.
Input modules must be paired with output modules to ensure the paired modules do not use the same image locations.
1747-ASB Input Image 1747-ASB Output Image
17
15
Slot 1
Slot 3
Slot 5
Slot 7
Slot 9
Slot 11
Slot 13
Slot 15
Slot 17
10
8
7
7
Slot 1
Slot 3
Slot 5
Slot 7
Slot 9
Slot 11
Slot 13
Slot 15
Slot 17
0
0
Octal
Decimal
17
15
Slot 2
Slot 4
Slot 6
Slot 8
Slot 10
Slot 12
Slot 14
Slot 16
Slot 18
10
8
7
7
Slot 2
Slot 4
Slot 6
Slot 8
Slot 10
Slot 12
Slot 14
Slot 16
Slot 18
0
0
Octal
Decimal
Slot Pair 1
Slot Pair 2
Slot Pair 3
Slot Pair 4
Slot Pair 5
Slot Pair 6
Slot Pair 7
Slot Pair 8
Slot Pair 9
If images overlap, a 1747-ASB module error occurs. For example, if
16 point input modules are installed in slots 1 and 2, their input images overlap and a 1747-ASB module error occurs.
Publication 1747-UM006B-EN-P - June 2003
Addressing 3-7
1-Slot Addressing
When the 1747-ASB module is configured for 1-slot addressing, the processor addresses one chassis slot as one logical group. Each slot, beginning with slot one, is sequentially assigned one word (16 bits) of the 1747-ASB module's input and output image. Each terminal on the
I/O module is assigned a bit within the word, beginning with the least significant bit. One-slot addressing is primarily designed to accommodate I/O modules whose image size is less than or equal to one word but more than one byte.
Slot 1
Slot 1 is assigned to the first logical group of the 1747-ASB module’s image, beginning with bit 0 (the LSB).
Input Image
17 10 7 0
1 5 1 4 1 3 1 2 11 1 0 9 8 7 6 5 4 3 2 1 0
Octal
Decimal group 0
Slot 1
Each terminal is assigned a bit, beginning with the least significant bit.
Output Image
17 10 7 0
1 5 1 4 1 3 1 2 11 1 0 9 8 7 6 5 4 3 2 1 0
Octal
Decimal group 0
Slot 1
Each terminal is assigned a bit, beginning with the least significant bit.
Slot 2
Slot 2 is assigned the next logical group of the 1747-ASB module’s image, beginning with bit 0 (the LSB).
Input Image
17 10 7 0
1 5 1 4 1 3 1 2 11 1 0 9 8 7 6 5 4 3 2 1 0
Octal
Decimal group 1
Slot 2
Each terminal is assigned a bit, beginning with the least significant bit.
Output Image
17 10 7 0
1 5 1 4 1 3 1 2 11 1 0 9 8 7 6 5 4 3 2 1 0
Octal
Decimal group 1
Slot 2
Each terminal is assigned a bit, beginning with the least significant bit.
To accommodate modules that require up to two words (32 bits) of input and/or output image, the 1747-ASB module pairs slots beginning with slot 1 (i.e., slot 1 paired to slot 2, etc.). Slot pairing combines both words (of either the input or output image, whichever is required) and assigns them to one slot. This maximizes I/O image space, allowing you to install an input module in one slot and an output module in the other, each using up to 32 bits of the paired input and output images.
Publication 1747-UM006B-EN-P - June 2003
3-8 Addressing
Slot 1
Paired
I
O
Slot 1
When a module is installed in slot 1 that requires both words of input image, slot 1 uses the input image normally assigned to slot 2. Slot 2, therefore, cannot use any of its input image. However, slot 2 can now use the output image normally assigned to slot 1, because slot 1 is not using it.
Input Image
17 10 7
1 5 1 4 1 3 1 2 11 1 0 9 8 7 6 5
0
4 3 2 1 0
Octal
Decimal
Group 0
Group 1
I = Input Module
O = Output Module
Slot Pair
I
O
Slot 2
Paired
When a module is installed in slot 2 that requires both words of output image, slot 2 uses the output image normally assigned to slot 1 (if slot 1 is not already using it). The lesser slot number has priority over the greater.
Slot 2
Output Image
17 10 7
1 5 1 4 1 3 1 2 11 1 0 9 8 7 6 5
0
4 3 2 1 0
Octal
Decimal
Group 0
Group 1
1-Slot Addressing Considerations
When the 1747-ASB module is configured for 1-slot addressing, you can use 4, 8, 16 point, 32 point discrete and discrete combination, discrete and block transfer specialty I/O modules.
Like 32 point modules (i.e., two input modules) cannot be installed as a pair because both slots cannot use the same image location. For example, if you use a 32 point input module that requires two words of the image, the other module within the pair must be an output module.
If the discrete mode is selected, specialty I/O modules with two words or less of input and output image are discretely mapped such as the
1746-NIO4I. However, with a combination specialty module such as the 1746-NIO4I, the adjacent slot must be empty. Specialty I/O modules with more than two words of input or output image are block transfer mapped such as the 1746-NI4, -NO4I, -NO4V, and -HS.
If the block transfer mode is selected, all specialty I/O modules are block transfer mapped regardless of their image size.
The 1747-ASB module can block transfer map a maximum of eight words.
Publication 1747-UM006B-EN-P - June 2003
I = Input Module
O
= Output Module
Addressing 3-9
1-Slot Addressing Examples
The following example illustrates how to map modules requiring:
•
one word of input or output image
•
more than one word of input or output image
I
O
I
O
I
O
I
O
I I
O O
I
O
I
O
I
O
1746 Slot Numbering 0 1 2 3
Slot Pair
1 2
4 5 6 7 8 9
3 4 5
10 11 12 13 14 15 16 17 18
6 7 8 9
Modules Requiring One Word Modules Requiring More Than One Word
In the example below, the modules require one word of input or output image.
In the example below, the modules require more than one word of input or output image.
Input modules do not have to be paired with output modules, because in this example, only one word of input and output image is required.
Input modules must be paired with output modules so their input and output images do not overlap.
To reduce unused image space, slot pairing can be used with 32-point I/O modules or the system can be configured for complementary I/O. For more
information, refer to the complementary I/O description found on page 4-5.
1747-ASB Input Image 1747-ASB Output Image 1747-ASB Input Image 1747-ASB Output Image
17
15
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6
Slot 7
Slot 8
Slot 9
Slot 10
Slot 11
Slot 12
Slot 13
10
8
7
7
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6
Slot 7
Slot 8
Slot 9
Slot 10
Slot 11
Slot 12
Slot 13
Slot 14
Slot 15
Slot 16
Slot 17
Slot 14
Slot 15
Slot 16
Slot 17
Slot 18 Slot 18
0
0
1
2
3
4
5
6
7
8
9
Octal
Decimal
Slot Pair
17
15
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6
Slot 7
Slot 8
Slot 9
Slot 10
Slot 11
Slot 12
Slot 13
10
8
Slot 14
Slot 15
Slot 16
Slot 17
Slot 18
7
7
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6
Slot 7
Slot 8
Slot 9
Slot 10
Slot 11
Slot 12
Slot 13
Slot 14
Slot 15
Slot 16
Slot 17
Slot 18
0
0
1
2
3
4
5
6
7
8
9
Octal
Decimal
Slot Pair
17
15
Slot 1
Slot 1
Slot 3
Slot 3
Slot 5
Slot 5
Slot 7
10
8
Slot 7
Slot 9
Slot 9
Slot 11
Slot 11
Slot 13
Slot 13
Slot 15
Slot 15
Slot 17
Slot 17
7
7
Slot 7
Slot 9
Slot 9
Slot 11
Slot 11
Slot 13
Slot 13
Slot 15
Slot 15
Slot 17
Slot 1
Slot 1
Slot 3
Slot 3
Slot 5
Slot 5
Slot 7
Slot 17
0
0
1
2
3
4
5
6
7
8
9
Octal
Decimal
Slot Pair
17
15
Slot 8
Slot 10
Slot 10
Slot 12
Slot 12
Slot 14
Slot 14
Slot 16
Slot 16
Slot 18
Slot 2
Slot 2
Slot 4
Slot 4
Slot 6
Slot 6
Slot 8
10
8
Slot 18
7
7
Slot 8
Slot 10
Slot 10
Slot 12
Slot 12
Slot 14
Slot 14
Slot 16
Slot 16
Slot 18
Slot 2
Slot 2
Slot 4
Slot 4
Slot 6
Slot 6
Slot 8
Slot 18
0
0
1
2
3
4
5
6
7
8
9
Octal
Decimal
Slot Pair
= unused
If images overlap, a 1747-ASB module error occurs. For example, if
32-point input modules are installed in slots 1 and 2, their input images overlap and a 1747-ASB module error occurs.
Publication 1747-UM006B-EN-P - June 2003
3-10 Addressing
Slot 1
Slot 2
1/2-Slot Addressing
When the 1747-ASB module is configured for 1/2-slot addressing, the processor addresses one chassis slot as two logical groups. Each slot, beginning with slot one, is sequentially assigned two words (32 bits) of the 1747-ASB module's input and output image. Each terminal on the I/O module is assigned a bit within the word, beginning with the least significant bit. 1/2-slot addressing is designed to accommodate
I/O modules whose image size is less than or equal to two words but more than one word.
Slot 1 is assigned to the first two logical groups of the
1747-ASB module ’s image, beginning with bit 0 (the LSB).
Input Image Output Image
Slot 1
17 10 7 0
1 5 1 4 1 3 1 2 11 1 0 9 8 7 6 5 4 3 2 1 0
Octal
Decimal group 0 group 1
Slot 1
Each terminal is assigned a bit, beginning with the least significant bit.
17 10 7
1 5 1 4 1 3 1 2 11 1 0 9 8 7 6 5 4 3 2
Each terminal is assigned a bit, beginning with the least significant bit.
0
1 0
Octal
Decimal
Group 0
Group 1
Slot 2 is assigned to the next two logical groups of the
1747-ASB module ’s image, beginning with bit 0 (the LSB).
Slot 2
Input Image
17 10 7 0
1 5 1 4 1 3 1 2 11 1 0 9 8 7 6 5 4 3 2 1 0
Each terminal is assigned a bit, beginning with the least significant bit.
Output Image
Octal
Decimal group 2 group 3
Slot 2
17 10 7
1 5 1 4 1 3 1 2 11 1 0 9 8 7 6 5 4 3 2
Each terminal is assigned a bit, beginning with the least significant bit.
0
1 0
Octal
Decimal
Group 2
Group 3
To accommodate modules that require up to four words of input and/or output image, the 1747-ASB module pairs slots beginning with slot one (i.e., slot 1 is paired to slot 2, etc.). Slot pairing combines the two words assigned to each slot (of either the input or output image, whichever is required) and assigns all four words to one slot. This maximizes I/O image space, allowing you to install an input module in one slot and an output module in the other, each using up to four words of the paired input and output images.
Publication 1747-UM006B-EN-P - June 2003
Addressing 3-11
Slot 1
Paired
I
O
I = Input Module
O = Output Module
Slot Pair
I
O
Slot 2
Paired
With slot pairing, when a module is installed in slot 1 that requires all four words of the input image, slot 1 uses the input image normally assigned to slot 2. Slot 2, therefore, cannot use any of its input image. However, slot 2 can now use the output image normally assigned to slot 1, because slot 1 is not using it.
Slot 1
Input Image
17 10 7 0
1 5 1 4 1 3 1 2 11 1 0 9 8 7 6 5 4 3 2 1 0
Octal
Decimal
Group 0
Group 1
Group 2
Group 3
When a module is installed in slot 2 that requires all four words of the output image, slot 2 uses the output image normally assigned to slot 1 (if slot 1 is not already using it). The lesser slot number has priority over the greater.
Slot 2
Output Image
17 10 7 0
1 5 1 4 1 3 1 2 11 1 0 9 8 7 6 5 4 3 2 1 0
Octal
Decimal
Group 0
Group 1
Group 2
Group 3
1/2-Slot Addressing Considerations
When the 1747-ASB module is configured for 1/2-slot addressing, you can use 4-, 8-, 16-, 32-point, discrete combination and specialty I/O modules in any slot.
If the discrete mode is selected, specialty modules with four words or less of input or output image are discretely mapped such as the
1746-NI4, -NO4I, -NO4V, and -HS. However, with a specialty module such as the 1746-HS, the adjacent slot must be empty. Specialty modules with more than four words of input or output image are block transfer mapped such as the 1746-BAS.
If the block transfer mode is selected, all specialty modules are block transfer mapped regardless of the image size.
The 1747-ASB module can block transfer map a maximum of eight words.
Publication 1747-UM006B-EN-P - June 2003
3-12 Addressing
1/2-Slot Addressing Examples
The following example illustrates how to map modules requiring:
•
two words of input or output image
•
more than two words of input or output image
I
O
I
O
I
O
I
O
I = Input Module
O
= Output Module
1746 Slot Numbering 0 1 2 3
Slot Pair
1 2
4 5 6 7 8
3 4
Modules Requiring Two Words
In the example below, the modules require two words of input or output image.
If you would like to know how you can use the unused input or output images, refer to the complementary I/O description, found on page 4–5.
1747-ASB Input Image
17
15
Slot 4
Slot 5
Slot 5
Slot 6
Slot 6
Slot 7
Slot 7
Slot 8
Slot 8
Slot 1
Slot 1
Slot 2
Slot 2
Slot 3
Slot 3
Slot 4
10
8
7
7
Slot 4
Slot 5
Slot 5
Slot 6
Slot 6
Slot 7
Slot 7
Slot 8
Slot 8
Slot 1
Slot 1
Slot 2
Slot 2
Slot 3
Slot 3
Slot 4
0
0
1
2
3
4
Octal
Decimal
Slot Pair
1747-ASB Output Image
17
15
Slot 4
Slot 5
Slot 5
Slot 6
Slot 6
Slot 7
Slot 7
Slot 8
Slot 8
Slot 1
Slot 1
Slot 2
Slot 2
Slot 3
Slot 3
Slot 4
10
8
7
7
Slot 4
Slot 5
Slot 5
Slot 6
Slot 6
Slot 7
Slot 7
Slot 8
Slot 8
Slot 1
Slot 1
Slot 2
Slot 2
Slot 3
Slot 3
Slot 4
0
0
1
2
3
4
Octal
Decimal
Slot Pair
= unused
Modules Requiring More Than Two Words
In this example, the modules require more than two words of input or output image.
Input modules must be paired with output modules so their input or output images do not overlap.
1747-ASB Input Image
17
15
10
8
7
7
Slot 1
Slot 1
Slot 1
Slot 1
Slot 1 Slot 1
Slot 1 Slot 1
Slot 3
Slot 3
Slot 3
Slot 3
Slot 3 Slot 3
Slot 3 Slot 3
Slot 5 Slot 5
Slot 5 Slot 5
Slot 5 Slot 5
Slot 5 Slot 5
Slot 7 Slot 7
Slot 7
Slot 7
Slot 7
Slot 7
Slot 7 Slot 7
0
0
1
2
3
4
Octal
Decimal
Slot Pair
1747-ASB Output Image
17
15
10
8
7
7
Slot 2
Slot 2
Slot 2
Slot 2
Slot 2
Slot 2
Slot 2 Slot 2
Slot 4
Slot 4
Slot 4
Slot 4
Slot 4 Slot 4
Slot 4 Slot 4
Slot 6
Slot 6
Slot 6
Slot 6
Slot 6 Slot 6
Slot 6 Slot 6
Slot 8 Slot 8
Slot 8 Slot 8
Slot 8 Slot 8
Slot 8 Slot 8
0
0
1
2
3
4
Octal
Decimal
Slot Pair
Publication 1747-UM006B-EN-P - June 2003
Addressing 3-13
How I/O Module Images
Are Mapped
The method of transferring an I/O module's image to the 1747-ASB module's image is referred to as image mapping, or mapping. An I/O image can be discretely mapped or block transfer mapped. How the module's image is mapped depends on the type of module you are using (discrete or specialty I/O).
The following table lists all of the different types of I/O modules currently supported by the 1747-ASB module.
I/O Module
4-point discrete I/O
8-point discrete I/O
16-point discrete I/O
32-point discrete I/O
Combination discrete I/O
Analog I/O
BASIC Module
IMC 110 Servo Motion Control Module Specialty
Distributed I/O Scanner Module Specialty
Direct Communications Module
KE Communications Module
Specialty
Specialty
Thermocouple/mV Module
RTD/Resistance Module
Stepper Controller Module
Specialty
Specialty
Specialty
Type of Module
Discrete
Discrete
Discrete
Discrete
Discrete
Specialty
Specialty
How Discrete I/O Modules Are Mapped
Discrete I/O images are exchanged with either the SLC or PLC scanner using RIO discrete transfers. Discrete I/O module images are always discretely mapped to the 1747-ASB module image. Discrete I/O images are mapped into the assigned image space beginning with the least significant bit. The example below assumes 1-slot addressing starting at logical group zero.
Publication 1747-UM006B-EN-P - June 2003
3-14 Addressing
Processor/Scanner
Backplane transfer from a 4-point discrete input module to the 1747-ASB module image.
PLC Local Chassis
Processor
SLC Local Chassis
Scanner
1
2 3 4 5 6
slot 1 slot 2 slot 3 slot 4 slot 5 slot 6
1747-ASB Module Input Image
1 5 1 4 1 3 1 2 11 1 0 9 8 7 6 5 4 3 2 1 0
group 0 group 1 group 2 group 3
0 1 1 0 group 4 group 5
4-Point Input Module Data
How Specialty I/O Module Images Are Mapped
Specialty I/O module images are discretely mapped or block transfer mapped, depending on the specialty I/O mode you have selected for the 1747-ASB module. SW3-7 provides two specialty I/O modes, discrete and block transfer.
When Block Transfer Mode is Selected
The advantage of using block transfer mode is that it only requires one byte of the 1747-ASB module's input and output image.
However, you must add block transfer instructions to your PLC user program, and block transfer times are generally longer than discrete transfer times.
When block transfer mode is selected, all specialty modules that are block transfer mapped use one byte in the 1747-ASB module's input and output image. These bytes reside in the least significant byte of the 1747-ASB image reserved for the module's slot.
When a module is block transfer mapped, the module's input and output image is transferred on the RIO link using RIO block transfers.
RIO block transfers are processed by the scanner and 1747-ASB module. The 1747-ASB module transfers the specialty I/O modules image by way of a backplane scan. The 1747-ASB module then transfers the image to the scanner using RIO block transfers.
Publication 1747-UM006B-EN-P - June 2003
Addressing 3-15
The scanner and 1747-ASB module process a maximum of one RIO block transfer per logical device per RIO scan. If you wish to perform four RIO block transfers for a logical device, at least four RIO scans are required to complete these RIO block transfers.
The 1747-ASB module can block transfer up to a maximum of 8 words per block transfer.
1747-ASB module exchanges data with the speciality I/O module via the backplane.
PLC Local Chassis
Processor/Scanner
The PLC scanner and
1747-ASB module exchange the specialty I/O module’s data using RIO block transfers.
slot 1 slot 2 slot 3 slot 4 slot 5 slot 6
1747-ASB Module Input Image
1 5 1 4 1 3 1 2 11 1 0 9 8 7 6 5 4 3 2 1 0
Block Transfer Byte
1
1747-ASB module is configured for 1-slot addressing.
2 3 4 5 6
slot 1 slot 2 slot 3 slot 4 slot 5 slot 6
1747-ASB Module Output Image
1 5 1 4 1 3 1 2 11 1 0 9 8 7 6 5 4 3 2 1 0
The byte reserved in the
1747-ASB module’s output and input image is used by the scanner and 1747-ASB module to process the RIO block transfer
Block Transfer Byte
The 1747-ASB module processes RIO block transfers that are less than or equal to the specialty I/O module's image size. For example, if a four word specialty I/O module is block transfer mapped, the
1747-ASB module accepts RIO block transfer reads for this module if they are less than or equal to four words. RIO block transfers always begin reading or writing word 0 (least significant word) of the module's image.
An RIO block transfer size of zero will cause all of the module's image to be transferred.
When Discrete Mode is Selected
The advantage of discrete mode is that no programming is required for data transfer. However, discrete mode requires more 1747-ASB module image space than block transfer mode.
Publication 1747-UM006B-EN-P - June 2003
3-16 Addressing
When discrete mode is selected, specialty I/O modules are discretely mapped or block transfer mapped, depending on:
• the specialty I/O module's image size
• the addressing mode selected (2-slot, 1-slot, or 1/2-slot)
When discrete mode is selected, a specialty I/O module is discretely mapped if its image fits into the image space assigned to its slot pair.
For example, if the specialty I/O module such as the 1746-NIO4I and
-NIO4V requires two words of input and output image, and the
1747-ASB module is configured for 1-slot addressing, the specialty I/O module is discretely mapped . However, if four words of input or output image are required, the specialty I/O module such as the
1746-NI4, -NO4V, -NO4I, and -HS, are block transfer mapped.
RIO Discrete Mapping
Two words of input and output image are required by the specialty I/O module. The 1747-ASB module is configured for 1-slot addressing, which provides two words of input and output image per slot pair. Because the specialty I/O module’s image can be mapped into the provided image, the specialty I/O module is discretely mapped. The other slot of the pair is empty since all of the input and output image is used.
Two words provided by
1747-ASB module.
Two words required by specialty I/O module.
RIO Block Transfer Mapping
Four words of input and output image are required by the specialty I/O module.
The 1747-ASB module is configured for
1-slot addressing, which provides two words of input and output image per slot pair. Because the specialty I/O module’s image cannot be mapped into the provided image, the specialty I/O module is block transfer mapped.
Two words provided by
1747-ASB module.
Four words required by specialty I/O module.
Due to the module's image size, some specialty I/O modules are always block transfer mapped.
Publication 1747-UM006B-EN-P - June 2003
Addressing 3-17
The following table provides the specialty I/O module mapping used when discrete mode is selected.
Max. Specialty I/O
Module Image Size
1 Word
2 Words
3 or 4 Words
5 to 8 Words
Addressing
Mode
2-slot
1-slot
1/2-slot
2-slot
1-slot
1/2-slot
2-slot
1-slot
1/2-slot
2-slot
1-slot
1/2-slot
Specialty I/O
Module Mapping
Discrete
Discrete
Discrete
Block transfer
Discrete
Discrete
Block transfer
Block transfer
Discrete
Block transfer
Block transfer
Block transfer
I/O Module
Examples
1747-KE
1746-NIO4I,
-NIO4V
1746-NI4,
-NO4V,
-IMC110
1746-BAS,
-NR4, -NT4,
-HSTP1
1747-DCM
The 1747-ASB module can block transfer map a maximum of eight words.
Publication 1747-UM006B-EN-P - June 2003
3-18 Addressing
Publication 1747-UM006B-EN-P - June 2003
Chapter
4
Configuration
This chapter presents the configuration options made through the various DIP switch settings.
DIP Switch Information
The 1747-ASB module parameters are configured by three DIP switches, shown below. To assist you in the configuration of multiple
1747-ASB modules, a configuration worksheet is provided in
DIP Switches
Self-Locking Tab
1
SW3
Hold Last State
Processor Restart Lockout
Link Response
Last Chassis/PLC-3 Backup
Addressing Mode Bit 1 (MSB)
Addressing Mode Bit 0 (LSB)
Specialty I/O Mode
I/O Module Keying
SW2
Baud Rate Bit 1 (MSB)
Baud Rate Bit 0 (LSB)
Primary/Complementary SLC Chassis
Reserved
ASB Module Image Size Bit 3 (MSB)
ASB Module Image Size Bit 2
ASB Module Image Size Bit 1
ASB Module Image Size Bit 0 (LSB)
ON
OFF
SW1
Logical Rack Number Bit 5 (MSB)
Logical Rack Number Bit 4
Logical Rack Number Bit 3
Logical Rack Number Bit 2
Logical Rack Number Bit 1
Logical Rack Number Bit 0 (LSB)
Logical Group Number Bit 1 (MSB)
Logical Group Number Bit 0 (LSB)
Publication 1747-UM006B-EN-P - June 2003
4-2 Configuration
DIP Switch SW1
Logical Rack Number
Logical Rack Number (SW1-1 through 6)
Logical Group Number
SW1 switches 1 through 6 assign the 1747-ASB module a starting logical rack number in the scanner's image.
Baud Rate
Primary/Complementary Chassis
Reserved
ASB Module Image Size
When configured as a complementary chassis (SW2 switch 3), the
1747-ASB module can appear on the RIO link as any starting logical rack between 0 and 62 (0 to 76 octal).
ON
OFF
Hold Last State
Processor Restart Lockout
Link Response
Last Chassis/PLC-3 Backup
Addressing Mode
Specialty I/O Mode
I/O Module Keying
When configured as a primary chassis (SW2 switch 3), the 1747-ASB module can appear on the RIO link as any starting logical rack between 0 and 7.
Logical rack one is the default setting as shipped from the factory.
The following table provides the logical rack numbers for PLC processors.
Logical Rack Number (Octal)
1747-SN PLC 2 PLC 3 PLC 5/15 PLC 5/25 PLC 5/40 PLC 5/60 PLC 5/250 1
0
1
1
2
0
1
-
1
-
1
-
1
-
1
0
1
ON
ON
Switch Number (SW1)
2
ON
ON
3
ON
ON
4
ON
ON
5
ON
ON
6
ON
OFF
2
3
3
4
5
6
7
2
3
4
5
10
11
6
7
2
3
2
3
4
5
6
7
2
3
4
5
6
7
10
11
2
3
4
5
6
7
10
11
2
3
4
5
6
7
10
11
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
ON
ON
OFF ON
OFF OFF
ON
ON
ON
OFF
OFF ON
OFF OFF
ON
ON
ON
OFF
12
13
14
15
16
17
20
21
12
13
14
15
16
17
12
13
14
15
16
17
20
21
12
13
14
15
16
17
20
21
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
OFF ON
OFF OFF
ON
ON
ON
ON
OFF
OFF ON
OFF OFF
ON ON
OFF
22
23
24
25
26
22
23
24
25
26
22
23
24
25
26
ON OFF ON ON OFF ON
ON OFF ON ON OFF OFF
ON OFF ON OFF ON ON
ON OFF ON OFF ON OFF
ON OFF ON OFF OFF ON
Publication 1747-UM006B-EN-P - June 2003
Configuration 4-3
1747-SN PLC 2 PLC 3
27
30
Logical Rack Number (Octal)
PLC 5/15 PLC 5/25 PLC 5/40 PLC 5/60
27
PLC 5/250
27
30
1
Switch Number (SW1)
2 3 4 5 6
ON OFF ON OFF OFF OFF
ON OFF OFF ON ON ON
31
32
33
34
31
32
33
34
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
OFF
ON OFF
OFF ON
OFF OFF
ON ON
41
42
43
44
35
36
37
40
35
36
37
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
OFF
OFF
OFF
ON
ON
ON
ON
ON
OFF
OFF
OFF
ON
ON
ON
ON
OFF
ON
ON
OFF
OFF ON
OFF OFF
ON ON
OFF
OFF ON
OFF OFF
ON ON
61
62
63
64
55
56
57
60
51
52
53
54
45
46
47
50
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
ON
ON
ON
ON
OFF
OFF ON
OFF OFF
ON ON
OFF
OFF ON
OFF OFF
ON ON
OFF
OFF ON
OFF OFF
ON ON
OFF
OFF ON
OFF OFF
ON ON
77 77
71
72
73
74
65
66
67
70
75
76
77 77 77 77 77 77
OFF OFF ON OFF ON OFF
OFF OFF ON OFF OFF ON
OFF OFF ON OFF OFF OFF
OFF OFF OFF ON ON ON
OFF OFF OFF ON ON OFF
OFF OFF OFF ON OFF ON
OFF OFF OFF ON OFF OFF
OFF OFF OFF OFF ON ON
OFF OFF OFF OFF ON OFF
OFF OFF OFF OFF OFF ON
Reserved
Publication 1747-UM006B-EN-P - June 2003
4-4 Configuration
Logical Rack Number
Logical Group Number
Baud Rate
Primary/Complementary Chassis
Reserved
ASB Module Image Size
ON
OFF
Hold Last State
Processor Restart Lockout
Link Response
Last Chassis/PLC-3 Backup
Addressing Mode
Specialty I/O Mode
I/O Module Keying
Logical Group Number (SW1-7,8)
SW1 switches 7 and 8 determine the starting logical group.
Valid starting logical group numbers are determined by the:
• addressing mode (2-slot, 1-slot, or 1/2-slot)
• specialty I/O mode (discrete or block transfer)
The default position is logical group zero as shipped from the factory.
Addressing Mode
2-slot, 1-slot, 1/2-slot Block Transfer
2-slot, 1-slot Discrete
1/2-slot
Specialty I/O Mode Valid Starting Logical
Groups
Discrete
0, 2, 4, 6
0, 2, 4, 6
0, 4
SW1
1 1
SW1 SW1 SW1
Publication 1747-UM006B-EN-P - June 2003
Group 0 Group 2 Group 4 Group 6
If an invalid starting logical group number is selected, an error occurs.
DIP Switch SW2
Baud Rate (SW2-1,2)
SW2 switches 1 and 2 determine the baud rate the 1747-ASB module operates at while communi cating across the RIO link.
The default is 57.6K as shipped from the factory.
Baud Rate
57.6K baud
115.2K baud
230.4K baud
Maximum Cable Distance (Belden 9463)
3048 meters (10,000 feet)
1524 meters (5,000 feet)
762 meters (2,500 feet)
Baud Rate DIP Switch Settings
SW2 SW2 SW2
Configuration 4-5
SW2
57.6K
115.2K
230.4K
Invalid
If the invalid switch setting is selected, a 1747-ASB module error occurs.
Logical Rack Number
Logical Group Number
Baud Rate
Primary/Complementary Chassis
Reserved
ASB Module Image Size
Primary/Complementary Chassis (SW2-3)
SW2 switch 3 determines whether the 1747-ASB module appears to the scanner as a primary or complementary chassis.
Primary/Complementary SLC Chassis DIP Switch Setting
SW2 SW2
ON
OFF
Hold Last State
Processor Restart Lockout
Link Response
Last Chassis/PLC-3 Backup
Addressing Mode
Specialty I/O Mode
I/O Module Keying
Primary Complementary (default)
If you are not using complementary I/O, all 1747-ASB modules should be configured with SW2-3 in the default position. If a primary chassis is configured and no complementary chassis exists, the scanner wastes time trying to scan a complementary chassis that is not there.
Complementary I/O allows two 1747-ASB modules to overlap their input and output images, creating one image within the scanner, thus maximizing image space. The combined image is located where the primary image is configured to reside. Complementary I/O is very useful when portions of your input and output images are unused.
Publication 1747-UM006B-EN-P - June 2003
4-6 Configuration
Publication 1747-UM006B-EN-P - June 2003
ATTENTION
!
Because the primary and complementary chassis images overlap, input and specialty I/O modules must never share the same image location. Inputs received by the scanner may be incorrect and RIO block transfers are not serviced properly.
If an output module shares its output image with another output module, both output modules receive the same output information.
If you want to use complementary I/O, two 1747-ASB modules are required. One 1747-ASB module is configured as a primary chassis, the other as a complementary chassis. If a primary chassis exists, it is scanned first.
The 1747-ASB modules in the primary and complementary chassis
must be configured to have the same:
• addressing mode, using SW3-5,6
• logical group number, using SW1-7,8
• baud rate, using SW2-1,2
• image size, using SW2-5 through 8
ATTENTION
!
If the addressing mode, logical group number, baud rate, and image size are not the same, unpredictable operation of both 1747-ASB modules results. No
1747-ASB module errors occur.
The 1747-ASB modules in the primary and complementary chassis do
not have to be configured to have the same:
• hold last state selection
• processor restart lockout selection
• specialty I/O mode
•
I/O module keying mode
• link response selection
Configuration 4-7
In addition, the 1747-ASB modules do not have to have to be controlling the same number of slots or type of chassis.
IMPORTANT
If a 1747-ASB module is configured as a primary chassis and as the last chassis, a 1747-ASB module error occurs. Only complementary chassis can be configured as last chassis. For information
concerning last chassis selection, refer to page 4-19.
Primary and complementary chassis cannot have the same logical rack number. The logical rack numbers must be assigned to the primary and complementary racks as shown below:
Primary Chassis
Logical Rack Number
(1)
0
1
2
3
4
5
6
7
Complementary Chassis Logical Rack Number
Decimal Octal
8
9
10
10
8
11
8
12
8
11
12
13
14
15
13
8
14
8
15
8
16
8
17
8
(1) If a 1747-ASB module is configured as a primary chassis with a logical rack number greater than 7, a
1747-ASB module error occurs.
ATTENTION
!
If the logical rack numbers are not properly assigned, unpredictable operation of both 1747-ASB modules results. No 1747-ASB module errors occur.
IMPORTANT
Some processors and/or scanners have configuration limitations when using complementary I/O in the addressing modes. Refer to the appropriate PLC or scanner manual for more information.
The following example illustrates how I/O modules requiring two words of the input or output image can leave unused image space.
Complementary I/O allows two chassis to overlap their input and output images, creating one image within the scanner.
Publication 1747-UM006B-EN-P - June 2003
4-8 Configuration
I
O
I
O
I
O
I
O O
I
O
I
O
I
O
I
I = Input Module
O
= Output Module
Slot 0 1 2 3
Slot Pair
1 2
4 5 6 7 8
3 4
Primary Chassis
Primary Chassis Configured As:
Logical Rack Number 0
Logical Group Number 0
Image Size (logical groups) 16
Addressing Mode 1/2-slot
Primary/Complementary Primary
Slot 0 1 2 3 4 5 6 7 8
Slot Pair
1 2 3 4
Complementary Chassis
Complementary Chassis Configured As:
Logical Rack Number 8 (decimal)
Logical Group Number 0
Image Size (logical groups) 16
Addressing Mode 1/2-slot
Primary/Complementary Complementary
Primary Chassis I/O Image
Input Image from Primary Chassis
Output Image from Primary Chassis
17
15
10
8
7
7
0
0
Octal
Decimal
17
15
10
8
7
7
0
0
Octal
Decimal
Slot 4
Slot 5
Slot 5
Slot 6
Slot 6
Slot 7
Slot 7
Slot 8
Slot 8
Slot 1
Slot 1
Slot 2
Slot 2
Slot 3
Slot 3
Slot 4
Slot 4
Slot 5
Slot 5
Slot 6
Slot 6
Slot 7
Slot 7
Slot 8
Slot 8
Slot 1
Slot 1
Slot 2
Slot 2
Slot 3
Slot 3
Slot 4
1
2
3
4
Slot Pair
Slot 4
Slot 5
Slot 5
Slot 6
Slot 6
Slot 7
Slot 7
Slot 8
Slot 8
Slot 1
Slot 1
Slot 2
Slot 2
Slot 3
Slot 3
Slot 4
Slot 4
Slot 5
Slot 5
Slot 6
Slot 6
Slot 7
Slot 7
Slot 8
Slot 8
Slot 1
Slot 1
Slot 2
Slot 2
Slot 3
Slot 3
Slot 4
1
2
3
4
Slot Pair
= unused image space
Complementary Chassis I/O Image
Input Image from Complementary Chassis
Output Image from Complementary Chassis
17
15
10
8
7
7
0
0
Octal
Decimal
17
15
10
8
7
7
0
0
Octal
Decimal
Slot 4
Slot 5
Slot 5
Slot 6
Slot 6
Slot 7
Slot 7
Slot 8
Slot 8
Slot 1
Slot 1
Slot 2
Slot 2
Slot 3
Slot 3
Slot 4
Slot 4
Slot 5
Slot 5
Slot 6
Slot 6
Slot 7
Slot 7
Slot 8
Slot 8
Slot 1
Slot 1
Slot 2
Slot 2
Slot 3
Slot 3
Slot 4
1
2
3
4
Slot Pair
Slot 4
Slot 5
Slot 5
Slot 6
Slot 6
Slot 7
Slot 7
Slot 8
Slot 8
Slot 1
Slot 1
Slot 2
Slot 2
Slot 3
Slot 3
Slot 4
Slot 4
Slot 5
Slot 5
Slot 6
Slot 6
Slot 7
Slot 7
Slot 8
Slot 8
Slot 1
Slot 1
Slot 2
Slot 2
Slot 3
Slot 3
Slot 4
1
2
3
4
Slot Pair
Scanner’s I/O Image
Both images are overlapped in the scanner. The overlapped image appears where the primary chassis image is configured to reside.
Logical
Rack 0
In this case, the primary chassis image is configured as starting logical rack 0 and starting logical group 0.
Logical
Rack 1
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Input Image Output Image
17
15
Slot 4
Slot 5
Slot 5
Slot 6
Slot 6
Slot 7
Slot 1
Slot 1
Slot 2
Slot 2
Slot 3
Slot 3
Slot 4
Slot 7
Slot 8
Slot 8
10
8
7
7
Slot 4
Slot 5
Slot 5
Slot 6
Slot 6
Slot 7
Slot 1
Slot 1
Slot 2
Slot 2
Slot 3
Slot 3
Slot 4
Slot 7
Slot 8
Slot 8
0
0
1
2
3
4
Octal
Decimal
Slot Pair
17
15
Slot 4
Slot 5
Slot 5
Slot 6
Slot 6
Slot 7
Slot 1
Slot 1
Slot 2
Slot 2
Slot 3
Slot 3
Slot 4
Slot 7
Slot 8
Slot 8
10
8
7
7
Slot 4
Slot 5
Slot 5
Slot 6
Slot 6
Slot 7
Slot 1
Slot 1
Slot 2
Slot 2
Slot 3
Slot 3
Slot 4
Slot 7
Slot 8
Slot 8
0
0
1
2
3
4
Octal
Decimal
Slot Pair
Publication 1747-UM006B-EN-P - June 2003
Configuration 4-9
Reserved (SW2-4)
Logical Rack Number
Logical Group Number
Baud Rate
Primary/Complementary Chassis
Reserved
ASB Module Image Size
SW2 switch 4 must remain in the ON position.
Reserved DIP Switch Setting
SW2
ON
OFF
Hold Last State
Processor Restart Lockout
Link Response
Last Chassis/PLC-3 Backup
Addressing Mode
Specialty I/O Mode
I/O Module Keying
Reserved
ASB Module Image Size (SW2-5, 6, 7, 8)
SW2 switches 5 through 8 determine the size of the 1747-ASB module's image that is reserved in the scanner.
You must also make sure you do not exceed the maximum logical
rack number, described on page 4-11.
Image size selection examples are found on page 4-12.
Examples of odd size chassis/images are provided, starting on page
Publication 1747-UM006B-EN-P - June 2003
4-10 Configuration
Logical Rack Number
Logical Group Number
Baud Rate
Primary/Complementary Chass
Reserved
ASB Module Image Size
The 1747-ASB module image size can be between 2 and 32 logical groups, in 2 logical group increments.
ASB Module Image Size DIP Switch Settings
SW2
ON
OFF
Hold Last State
Processor Restart Lockout
Link Response
Last Chassis/PLC-3 Backup
Addressing Mode
Specialty I/O Mode
I/O Module Keying
Number of Logical Groups 2
SW2
SW2
4
SW2
SW2
6
SW2
SW2
8
SW2
Number of Logical Groups 10
SW2
12
SW2
14
SW2
16
SW2
Number of Logical Groups 18
SW2
20
SW2
22
SW2
24
SW2
Number of Logical Groups
26 28 30 32
Publication 1747-UM006B-EN-P - June 2003
Configuration 4-11
IMPORTANT
If after assigning your 1747-ASB module image size, you exceed logical rack 62 in complementary mode
(SW2 switch 3) or logical rack 7 in primary mode (SW2 switch 3), an error occurs. When assigning the starting logical rack and group numbers, make sure the size of the 1747-ASB module image does not exceed the maximum logical rack number, as shown below:
Complementary Mode
Bit Number (Octal)
17 10 7 0
Bit Number (Decimal)
15 8 7 0
Logical
Rack 59
Logical
Rack 60
Logical
Rack 61
Logical
Rack 62
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
If you have selected logical rack 60, group
0 as your starting address, the largest
1747-ASB module image size you can create is 24 groups (3 logical racks).
Assigning a larger 1747-ASB module image size exceeds the maximum logical rack number.
Bit Number (Octal)
Bit Number (Decimal)
Logical
Rack 4
Logical
Rack 5
Logical
Rack 6
Logical
Rack 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
15
17
Primary Mode
7 10
8 7
0
0
If you have selected logical rack 5, group 0 as your starting address, the largest
1747-ASB module image size you can create is 24 groups (3 logical racks).
Assigning a larger 1747-ASB module image size exceeds the maximum logical rack number.
Publication 1747-UM006B-EN-P - June 2003
4-12 Configuration
Logical Rack Number
Logical Group Number
The following examples illustrate how the selection of the 1747-ASB image size is determined by:
• the addressing mode (2-slot, 1-slot, 1/2-slot)
• the number of chassis slots required
1747-ASB Module
Baud Rate
Primary/Complementary Chassis
Reserved
ASB Module Image Size
1-Slot Addressing With Six Slots Available
Using 1-slot addressing and a 7-slot chassis, six slots are available for I/O modules. To map all six slots into the scanner image, the 1747-ASB module image size must be 6 logical groups.
Slot Number 0 1 2 3 4 5 6
ON
OFF
Hold Last State
Processor Restart Lockout
Link Response
Last Chassis/PLC-3 Backup
Addressing Mode
Specialty I/O Mode
I/O Module Keying
1/2-Slot Addressing With Ten Slots Available
Using 1/2-slot addressing and a 4-slot chassis attached to a 7-slot chassis, ten slots are available for I/O modules. To map all ten slots into the scanner image, the 1747-ASB module image size must be 20 logical groups.
1747-ASB Module
If an image size of 16 logical groups is chosen, slots 9 and 10 are unused. If an I/O module is installed in slots 9 or 10, the
1747-ASB module ignores it unless the I/O module faults.
Slot Number 0 1 2 3 4 5 6 7 8 9 10
2-Slot Addressing With Nine Slots Available
Using 2-slot addressing and a 10-slot chassis, nine slots are available for I/O modules.
4 Logical Groups
Selecting 4 logical groups leaves slot 9 unused.
If an I/O module is in slot 9, the 1747-ASB module ignores it, unless the I/O module faults.
Selecting 6 logical groups leaves an unused logical group in the 1747-ASB module image.
The image normally assigned to slot 10 can be used by slot 9 (providing one full word).
1747-ASB Module
Slot Number 0 1 2 3 4 5 6 7 8 9
1747-ASB Module
6 Logical Groups
Slot Number 0 1 2 3 4 5 6 7 8 9
Publication 1747-UM006B-EN-P - June 2003
Configuration 4-13
Special Image and Chassis
Size Considerations
Sometimes, logical slots and groups are not mapped due to chassis size and selected image size because:
•
There is not enough 1747-ASB module image to map all of the available slots.
•
The 1747-ASB image size exceeds requirements for available slots.
•
One slot of a pair is present, with 1747-ASB module image available for both slots.
•
Both slots of a pair are available, but there is only enough
1747-ASB module image space available for one slot.
Not Enough 1747-ASB Module Image to Map All of the Available
Slots
When there is not enough 1747-ASB module image to map all of the available slots, any I/O modules in the unassigned slots are ignored.
If one of the unassigned I/O modules fault, it triggers a 1747-ASB module fault.
Modules should not be installed above slot 30. Otherwise a 1747-ASB error occurs.
In the following example, a 7-slot chassis contains a 1747-ASB module with an image size of 4 logical groups using 1-slot addressing.
1747-ASB Module
Using 1-slot addressing and a 7-slot chassis, six slots are available for I/O modules. Because the image size is 4 logical groups, 2 slots are not used. Slots 5 and 6 are ignored, even if
I/O modules are installed in them. However, if one of the modules in slots 5 or 6 faults, a 1747-ASB module error occurs.
Slot Number 0 1 2 3 4 5 6
4 Logical Groups
Publication 1747-UM006B-EN-P - June 2003
4-14 Configuration
1747-ASB Image Size Exceeds Slot Requirements
When there are not enough slots available to use the entire 1747-ASB module image, output image data received by the 1747-ASB module for the extra slots is ignored. All input image data sent to the scanner for the extra slots is zero.
1747-ASB Module
Using 1-slot addressing and a 7-slot chassis, six slots are available for I/O modules. Because the image size is 8 logical groups, 2 logical groups are not used. When there are not enough slots available to use the entire 1747-ASB module for the extra slots is ignored. All input image data sent to the scanner for the extra slots is zero.
Slot Number 0 1 2 3 4 5 6
8 Logical Groups
One Slot of Pair is Present, and 1747-ASB Module Image is
Available for Both Slots
When one slot of a pair is present and 1747-ASB module image is available for both slots, the single slot can use the extra image space.
1747-ASB Module
Using 1-slot addressing and a 4-slot chassis, three slots are available for I/O modules. Because the image size is 4 logical groups, 1 logical group is not assigned to a slot. Since slot 4 is not present, the module in slot 3 can use both logical groups assigned to the slot pair.
This could be done by installing a 32-point input module in slot 3.
Slot Number 0 1 2 3
4 Logical Groups
Publication 1747-UM006B-EN-P - June 2003
Configuration 4-15
Both Slots Of A Pair Are Available But There Is Only Enough
1747-ASB Module Image Space Available For One Slot
This condition only occurs in 1/2-slot addressing.
When both slots of a pair are available but there is only enough
1747-ASB module image space available for one slot, the lower numbered slot uses the available image space. If a four word specialty module (i.e., 1746-NI4) is installed in this slot and the
1747-ASB module is configured for the discrete specialty mode, a
1747-ASB error occurs.
1747-ASB Module
Using 1/2-slot addressing and a 7-slot chassis, six slots are available for I/O modules. Because the image size is 6 logical groups, the last two logical groups of the image can only be used by slot 3 (slots
4, 5, and 6 are ignored unless the module faults).
Slot Number 0 1 2 3 4 5 6
6 Logical Groups
DIP Switch SW3
Hold Last State (SW3-1)
SW3 switch 1 allows discrete outputs to remain in their last state when certain, but not all, system faults occur.
Hold Last State DIP Switch Settings
SW3 SW3
Hold Last State Do Not Hold Last State
ATTENTION
!
If switch 1 is set to the ON position, outputs connected to this chassis remain in their last state when a fault occurs and machine motion may continue after fault detection. We recommend that you set switch 1 to the OFF position to de-energize outputs wired to this chassis when a fault is detected.
Publication 1747-UM006B-EN-P - June 2003
4-16 Configuration
When hold last state is selected, outputs are held in their last state when any of the following conditions occur:
•
RIO link communications is lost due to a broken cable or scanner fault.
•
The 1747-ASB module is inhibited by the scanner.
•
The 1747-ASB module receives reset, adapter decide commands from the scanner.
When the discrete outputs are being held in their last state, consider the following:
•
The specialty modules operate as if they are being controlled by an SLC processor that is in the test mode. See the specialty I/O module's manual to determine the response to this condition.
•
The specialty I/O module's inputs are still read by the 1747-ASB module. However, the specialty I/O module's outputs are not modified by the 1747-ASB module.
Your system must be designed so it is in a safe state when all discrete outputs are off, or cleared.
The 1747-ASB module is shipped from the factory with the hold last state switch in the OFF position (do not hold last state).
ATTENTION
!
When hold last state is selected and specialty I/O modules are being used, the operation of the specialty I/O modules must be considered when the discrete outputs are being held in their last state.
Publication 1747-UM006B-EN-P - June 2003
Processor Restart Lockout (SW3-2)
SW3 switch 2 determines whether your system automatically resumes
RIO link communications with the scanner when:
•
Link communications are temporarily interrupted. For example, by removing and replacing the RIO connector.
•
The 1747-ASB module is inhibited and re-enabled.
Processor Restart Lockout DIP Switch Settings
SW3 SW3
Configuration 4-17
Logical Rack Number
Logical Group Number
Baud Rate
Primary/Complementary Chassis
Reserved
ASB Module Image Size
ON
OFF
Hold Last State
Processor Restart Lockout
Link Response
Last Chassis/PLC-3 Backup
Addressing Mode
Specialty I/O Mode
I/O Module Keying
Automatically Restart Lock Processor Out
While in the OFF position (lock processor out) and communications are restored, the 1747-ASB module does not respond to any communication commands until 1747-ASB module terminals IN and
RET are momentarily shorted together. Processor restart lockout prevents RIO link communications (by locking out the scanner and processor) and does not allow the 1747-ASB module to exchange any
I/O data or respond to any RIO commands, such as reset adapter reset commands.
RIO link communications can be restarted by:
• momentarily shorting pins 5 and 6 together (See chapter 5 for wiring information.)
• cycling power on any chassis controlled by the 1747-ASB module
While in the ON position, the 1747-ASB module always attempts to restart communications with the scanner if RIO link communications are interrupted or if the 1747-ASB module is inhibited and re-enabled.
While in the ON position, the 1747-ASB module does not respond if terminals 5 and 6 are shorted together.
The 1747-ASB module is shipped from the factory with the default position ON (automatic restart).
Publication 1747-UM006B-EN-P - June 2003
4-18 Configuration
ATTENTION
!
Cycling power on any chassis removes the processor restart lockout condition.
IMPORTANT
After communications to all of the 1747-ASB module's logical devices are established, selecting processor restart lockout disables PLC auto configurations on the 1747-ASB module.
If the 1747-ASB module has not received communications for all of its logical devices, you are able to perform PLC auto configurations once the 1747-ASB module is powered up. If processor restart lockout is
not selected, you are able to perform PLC auto configurations on the
1747-ASB module.
IMPORTANT
Selecting processor restart lockout affects the
1747-ASB module inhibit functionality.
Link Response Time (SW3-3)
SW3 switch 3 allows you to select a longer (restricted) response time when communicating at 57.6K and 115.2K baud. 230.4K baud operates with a short (unrestricted) response time, regardless of the switch setting.
The link response time is the time it takes an adapter to respond to data received from the scanner. Some scanners require a longer response time than other scanners. Operating unrestricted reduces overall RIO scan time, but requires a faster scanner.
Publication 1747-UM006B-EN-P - June 2003
Configuration 4-19
Link Response Time DIP Switch Setting
SW3 SW3
Restricted Unrestricted
The 1747-ASB module is shipped from the factory with the default position ON (restricted).
Last Chassis
SW3 switch 4 is used for last chassis selection when the 1747-ASB module is connected to a PLC-2, PLC-5, or SLC scanner (Catalog
Number 1747-SN)..
SW3 SW3
Logical Rack Number
Logical Group Number
Baud Rate
Primary/Complementary Chassis
Reserved
ASB Module Image Size
ON
OFF
Hold Last State
Processor Restart Lockout
Link Response
Last Chassis/PLC-3 Backup
Addressing Mode
Specialty I/O Mode
I/O Module Keying
Not Last Chassis Last Chassis
The 1747-ASB module is shipped from the factory with the default position ON (not last chassis).
A 1747-ASB module should be configured as the last chassis when:
•
Its image crosses logical rack boundaries and no other adapter uses a higher group number within its last logical rack.
•
It uses a portion of a logical rack and no other adapter uses a higher group number within that logical rack.
Publication 1747-UM006B-EN-P - June 2003
4-20 Configuration
The following examples illustrate last chassis conditions.
Bit Number (Octal)
17
Bit Number (Decimal)
15
Scanner Image
7 10
8 7
0
0
Group 0
Logical
Rack 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Logical
Rack 1
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Logical
Rack 2
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Logical
Rack 3
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
1747-ASB Module 1
Last Chassis
1747-ASB Module 2
Not Last Chassis
1747-ASB Module 3
Last Chassis
1747-ASB Module 4
Last Chassis
Bit Number (Octal)
17
Bit Number (Decimal)
15
Scanner Image
7 10
8 7
0
0
Logical
Rack 0
Logical
Rack 1
Logical
Rack 2
Logical
Rack 3
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
1747-ASB Module 1
1747-ASB Module 2
Not Last Chassis
1747-ASB Module 3
Not Last Chassis
Last Chassis
IMPORTANT
When using complementary I/O, do not configure a primary chassis as the last chassis, otherwise a
1747-ASB module error occurs.
Addressing Mode (SW3-5,6)
SW3 switches 5 and 6 determine the addressing mode of 2-slot, 1-slot, or 1/2-slot.
Addressing Mode DIP Switch Settings
SW3 SW3 SW3 SW3
2-slot 1-slot 1/2-slot Invalid
The 1747-ASB module is shipped from the factory with the default position selected for 1-slot addressing.
Publication 1747-UM006B-EN-P - June 2003
Configuration 4-21
If the invalid switch setting is selected, a 1747-ASB module error occurs.
1/2-slot addressing is not supported by the PLC-2 family of processors.
Specialty I/O Mode (SW3-7)
SW3 switch 7 determines the specialty I/O mode (discrete or block transfer).
Specialty I/O Mode DIP Switch Settings
SW3 SW3
Logical Rack Number
Logical Group Number
Baud Rate
Primary/Complementary Chassis
Reserved
ASB Module Image Size
ON
OFF
Hold Last State
Processor Restart Lockout
Link Response
Last Chassis/PLC-3 Backup
Addressing Mode
Specialty I/O Mode
I/O Module Keying
Discrete Block Transfer
The 1747-ASB module is shipped from the factory with the default position ON (discrete).
For an overview of discrete and block transfer modes, refer to page
I/O Module Keying (SW3-8)
SW3 switch 8 provides I/O module keying, that prevents you from operating the 1747-ASB module when the I/O module or DIP switch configuration (other than the keying DIP switch itself) differs from the last time you saved it. There are two modes, save and check.
When power is applied in save mode and the DIP switch and I/O module configurations are valid, the 1747-ASB module saves the DIP switch and I/O module configuration in non-volatile memory.
When power is applied in check mode, the 1747-ASB module compares the stored DIP switch and I/O module configuration to the current DIP switch and I/O module configuration. If the configurations do not match, a 1747-ASB module error occurs.
Publication 1747-UM006B-EN-P - June 2003
4-22 Configuration
IMPORTANT
Use save mode during setup and debug. After debugging is complete, power up in save mode one last time. Remove power and place the 1747-ASB module in check mode prior to normal operation.
I/O Module Keying DIP Switch Settings
SW3 SW3
Save Mode Check Mode
The 1747-ASB module is shipped from the factory with the default position ON (save mode).
Switch Setting Summary
The following is a summary listing the various DIP switch settings.
SW1
SW1
•
Logical Rack Number
•
Logical Group Number
Logical Rack Number Bit 5 (MSB)
Logical Rack Number Bit 4
Logical Rack Number Bit 3
Logical Rack Number Bit 2
Logical Rack Number Bit 1
Logical Rack Number Bit 0 (LSB)
Logical Group Number Bit 1 (MSB)
Logical Group Number Bit 0 (LSB)
7
ON
ON
OFF
OFF
8
ON
OFF
ON
OFF
2
4
Group
0 (default)
6
SW2
Baud Rate Bit 1 (MSB)
Baud Rate Bit 0 (LSB)
Primary/Complementary Chassis
Reserved
ASB Module Image Size Bit 3 (MSB)
ASB Module Image Size Bit 2
ASB Module Image Size Bit 1
ASB Module Image Size Bit 0 (LSB)
SW2
•
Baud Rate
•
Primary/Complementary Chassis
ON=Primary
OFF=Complementary (default)
•
1747-ASB Module Image Size
Publication 1747-UM006B-EN-P - June 2003
SW3
Hold Last State
Processor Restart Lockout
Link Response
Last Chassis/PLC-3 Backup
Addressing Mode Bit 1 (MSB)
Addressing Mode Bit 0 (LSB)
Specialty I/O Mode
I/O Module Keying
Configuration 4-23
SW3
5
ON
ON
OFF
OFF
•
Hold Last State
ON=Hold Last State
OFF=Do Not HOld Last State
(default)
•
Processor Restart Lockout
ON=Automatic Restart (default)
OFF=Processor Lockout
•
Link Response
ON=Restricted (default)
OFF=Unrestricted
•
Last Chassis
ON=Not Last Chassis (default)
OFF=Last Chassis
•
Addressing Mode
6
ON
OFF
ON
OFF
Address
Invalid
1-slot Addressing
(default)
1/2-slot Addressing
2-slot Addressing
Publication 1747-UM006B-EN-P - June 2003
4-24 Configuration
Publication 1747-UM006B-EN-P - June 2003
1
Chapter
5
Installation and Wiring
This chapter presents installation and wiring information for the remote I/O adapter module.
If this product is installed within the European Union or EEA regions and has the CE mark, the following regulations apply.
European Union Direct
Compliance
EMC Directive
This apparatus is tested to meet Council Directive 89/336
Electromagnetic Compatibility (EMC) using a technical construction file and the following standards, in whole or in part:
•
EN 50081-2 EMC - Generic Emission Standard,
Part 2 - Industrial Environment
•
EN 50082-2 EMC - Generic Immunity Standard,
Part 2 - Industrial Environment
The product described in this manual is intended for use in an industrial environment.
Installing the 1747-ASB
Module
ATTENTION
!
Disconnect power before attempting to install or remove the module.
1. Install the module in slot 0 of the remote chassis by aligning the circuit board with the chassis card guide.
The 1747-ASB module must only be installed in slot 0 (the left slot) of the remote chassis. Do not install the 1747-ASB module in the remote expansion chassis.
Publication 1747-UM006B-EN-P - June 2003
5-2 Installation and Wiring
2. Slide the module into the chassis until the top and bottom tabs lock into place. To remove the module, press and hold the release located on each self-locking tab and slide the module out.
3. Cover all unused slots with the Card Slot Filler, Catalog Number
1746-N2.
Module Release
Card Guide
Link Wiring
Publication 1747-UM006B-EN-P - June 2003
The modules are connected in a daisy chain configuration on any RIO link. A daisy chain network is formed by connecting network devices together in a serial manner using Belden 9463 cable. Belden 9463 cable is the only approved cable for Allen-Bradley RIO links.
The total number of adapters allowed on the RIO link are:
•
32 if the scanner and all adapters on the RIO link have extended node capability
•
16 if the scanner or any adapter does not have extended node capability
Refer to page 1-8 for information on extended node capability.
There are no restrictions governing the spacing between the devices, as long as the maximum cable distance is not exceeded. Refer to the table below for baud rate and maximum cable distances.
Installation and Wiring 5-3
Baud Rate
57.6K baud
115.2K baud
230.4K baud
Maximum Cable
Distance
3048 meters (10,000 feet)
1525 meters (5,000 feet)
750 meters (2,500 feet)
IMPORTANT
No two devices can be connected to the same point on the link. An example of correct and incorrect link wiring is shown below.
Correct Link Wiring
1747-ASB Module
To Scanner
1747-ASB Module
1747-ASB Module
Incorrect Link Wiring
To Scanner
1747-ASB Module
1747-ASB Module
1747-ASB Module
This is an incorrect connection!
Publication 1747-UM006B-EN-P - June 2003
5-4 Installation and Wiring
To Scanner’s
Connector
Chassis Ground
Terminating Resistor
Link Termination
A 6-pin keyed connector provides a quick connection to the RIO link and processor restart lockout switch. A user-supplied terminating resistor must be attached across line one and two of the connector at each end of the RIO link. The
Ω
size of the resistor depends on the baud rate and whether the scanner and all adapters have extended node capability, as shown in the table below. The cable shield must be connected to chassis ground only at one end of the RIO link.
Baud Rate
Using Extended Node Capability
Not Using Extended Node Capability
Terminating Resistor Size
All Baud Rates
82
Ω
1/2 Watt
57.6K baud
115.2K baud
230.4K baud
150
Ω
1/2 Watt
150
Ω
1/2 Watt
82
Ω
1/2 Watt
IMPORTANT
If the signal integrity on the RIO link is compromised by environmental noise, improper termination, and/or improper cable installation, the 1747-ASB module scan rate drops. This is indicated by a pronounced flickering of the status display.
Terminating Resistor
LINE 1 (Blue wire)
SHLD (Shield wire)
LINE 2 (Clear wire)
NC (No Connect)
IN
RET
ADAPTER
COMM F AUL T
ST ATUS
Blue
Shield
Clear
Status Display
(MSB)
LOGICAL
RACK
(LSB)
LOGICAL
GROUP
LINE 1
SHLD
LINE 2
NC
IN
RET
BAUD
RATE
PRI/COMP
RSV
(MSB)
IMAGE
SIZE
(LSB)
1747–ASB
HLS
PRL
RESP
LAST CHA
ADDR
MODE
SP MODE
KEY
Publication 1747-UM006B-EN-P - June 2003
Installation and Wiring 5-5
IMPORTANT
Do not connect anything to the NC (No Connect) terminal.
Wiring a Processor Restart
Lockout Switch
When processor restart lockout is enabled (SW3-2) and communications are restored, the 1747-ASB module does not respond to any type of communications, or communication commands until terminals IN and RET are momentarily shorted together. This occurs while the RIO scanner is attempting to communicate with the
1747-ASB module.
Momentary Switch
ATTENTION
!
Cycling power on any 1747-ASB module chassis removes the processor restart lockout condition by re-initializing the 1747-ASB module.
You must use a momentary switch (Class 1, Division 2) to short the terminals together. The processor restart lockout is removed as soon as the switch toggles back to the open circuit position.
A maximum of five feet of 14-24 gauge wire (solid or stranded) is recommended to connect the switch to the terminal.
ADAPTER
COMM F AUL T
ST ATUS
LINE 1 (Blue wire)
SHLD (Shield wire)
LINE 2 (Clear wire)
NC (No Connect)
IN
RET
LINE 1
SHLD
LINE 2
NC
IN
RET
BAUD
RATE
PRI/COMP
RSV
(MSB)
IMAGE
SIZE
(LSB)
(MSB)
LOGICAL
RACK
(LSB)
LOGICAL
GROUP
14 – 24 gauge wire
1747–ASB
HLS
PRL
RESP
LAST CHA
ADDR
MODE
SP MODE
KEY
IMPORTANT
Do not connect anything to the NC (No Connect) terminal.
Publication 1747-UM006B-EN-P - June 2003
5-6 Installation and Wiring
I/O Module Addressing
Labels
Due to the 1747-ASB module's addressing modes and RIO link operation, the I/O modules controlled by the 1747-ASB module are addressed by the PLC processor on a logical rack, logical group basis and by the SLC processor on a 1747-SN scanner slot and word basis.
A remote PLC and SLC label kit is included with each 1747-ASB module to assist you in addressing your I/O modules.
Use the labels that correspond to the type of master you are using
(PLC or SLC). Attach the Remote PLC or SLC label to the outside bottom of each I/O module in your 1747-ASB chassis. Fill out each label completely. RIO address label examples are provided on pages
8-5 and 8-13 (SLC), and 8-23 (PLC).
IMPORTANT
When the 1747-ASB module is used with PLC processors, use octal labels with discrete 1746
I/O modules that have 16 or more points.
INPUT INPUT
0 – 7
Rack
BT
I:
O:
10 – 17
Group(s)
Discrete
0 – 7
SN Slot
SN Word(s)
BT
8 – 15
Discrete
Remote SLC Label
Remote PLC Label
0 – 7
Rack
I:
O:
BT
10 – 17
Group(s)
Discrete
0 – 7 8 – 15
SN Slot
SN Word(s)
BT Discrete
Using a PLC as a Master
If you are using a PLC processor as a master, each I/O module is addressed by logical rack and logical group, regardless of what physical slot it is in.
Using an SLC as a Master
If you are using an SLC processor as a master, each I/O module is addressed by the physical slot number of the 1747-SN scanner and the word that the I/O module uses in the scanner image. Data is transferred on the network by logical rack and logical group number.
Publication 1747-UM006B-EN-P - June 2003
Installation and Wiring 5-7
Octal Label Kit Installation
The octal filter and door label must be used when working with a PLC processor as a master. An octal label kit is included with the I/O
modules listed in the table on page 5-8. The kits can also be obtained
through your Rockwell Automation distributor.
Applying the Octal Filter Label
1. Remove the octal filter label from its paper carrier.
2. Align the octal filter label numbers horizontally to the module color bar and over the decimal filter numbers, as shown in the illustration below.
3. Apply the octal label to the filter.
4. Press firmly to ensure proper adhesion of the label.
Applying the Octal Door Label
1. Remove the octal door label from its paper carrier.
2. Align it over the decimal door label on the inside of the door.
Module Color Bar
3. Press firmly to ensure proper adhesion of the label.
Decimal Filter Label
Octal Filter Label
INPUT
OCTAL
Octal Door Label
1746-XXXX 1746-XXXX (OCTAL)
Decimal Door Label
Publication 1747-UM006B-EN-P - June 2003
5-8 Installation and Wiring
Octal Kit and I/O Module Information
Octal Kit Catalog
Number 1746-
RL44
RL45
RL46
RL47
RL40
RL41
RL42
RL43
RL50
RL51
RL52
RL53
RL54
RL55
RL56
RL57
OV16
OW16
OBP16
OVP16
OAP12
RL58
RL59
RL60
IC16
IH16
IB32
RL61
RL70
IV32
OB32 (E)
RL71 OV32
RL72 OB16E
(1)
Kit available with series C I/O modules.
ITB16
ITV16
OA16
OB16
OG16
IG16
IM16
IN16
IV16
Applies to I/O
Module 1746-
(1)
IA16
IB16
Publication 1747-UM006B-EN-P - June 2003
Chapter
6
Start-Up and Operation
System Start-Up
This chapter guides you through:
• system start-up
• powerup and initialization sequences
• initial link communications
• normal operation
• communication exceptions
• remote expansion chassis power loss
• invalid RIO link transfers
• testing the 1747-ASB module
Make sure SW3-8 is ON (save mode) while you setup and debug your system. When you have completed debugging your system:
1. Cycle the power one last time in save mode (SW3-8 ON).
2. Remove power from the system.
3. Remove the 1747-ASB module and set SW3-8 to the OFF position (check mode).
4. Replace the 1747-ASB module in slot 0.
5. Apply power to your system.
Any future changes to the 1747-ASB module's DIP switch or I/O module configuration results in a 1747-ASB module error, as long as the 1747-ASB module is in check mode.
The powerup and initialization sequence depends on whether the
1747-ASB module is in the save or check mode (SW3-8). RIO communications do not commence until a powerup and initialization sequence is complete.
1
Powerup and Initialization
Sequences
Power must be applied to all of the remote chassis and remote expansion chassis controlled by the 1747-ASB module before this sequence can be completed. If the remote expansion chassis are not powered, a 1747-ASB module error occurs.
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6-2 Start-Up and Operation
Save Mode
When power is applied in save mode, the 1747-ASB module:
1. Performs power up diagnostics
2. Reads and verifies the actual DIP switch and I/O module configuration
3. Saves the DIP switch and I/O module configuration
4. Waits for RIO link communications from the scanner
Check Mode
When power is applied in check mode, the 1747-ASB module:
1. Performs power up diagnostics
2. Verifies the stored configuration integrity
3. Compares the actual DIP switch, I/O module and chassis configurations to the stored configurations
4. Waits for RIO link communications from the scanner
1747-ASB module errors found during powerup and initialization are noted in chapter 7.
After successfully completing a powerup and initialization sequence, the 1747-ASB module waits to receive RIO link communications from the scanner for all of its logical devices. Once the 1747-ASB module receives RIO link communication for all of its logical devices, it begins normal operation.
Publication 1747-UM006B-EN-P - June 2003
Normal Operation
Start-Up and Operation 6-3
During normal operation (PLC or SLC in Run mode), the 1747-ASB module appears as shown below:
ADAPTER
COMM FAULT
Red FAULT LEDS is off.
Green COMM LED is on.
Status display indicates a run condition.
STATUS
A communication exception is not an error because once the exception is corrected, the 1747-ASB module begins normal operation without the need to cycle remote chassis or remote expansion chassis power. Communication exceptions are conditions that prevent normal RIO link communications. They may even be purposely used to change the operating state of the 1747-ASB module.
Communication Exception
If a communication exception exists with one logical device under the
1747-ASB module's control, the 1747-ASB module treats all logical devices under its control as if they too have the same condition. For example, if one logical device is inhibited, the 1747-ASB module treats all of its logical devices as if they too were inhibited.
Communication exceptions can only occur after the 1747-ASB module has first received communications from the scanner for all of its logical devices.
If the 1747-ASB module is more than one logical device, more than one communication exception may be present at the same time. If this occurs, they are handled on a priority basis.
2
3
Priority Condition
1 Loss of RIO link communications
4
Inhibits
Reset, adapter reset commands
Reset, adapter decide commands
Therefore, if one of the 1747-ASB module's logical devices is receiving reset adapter decide commands and another is inhibited, the
1747-ASB module treats all of its logical devices under its control as if they too were inhibited. Once the inhibit condition is cleared, the module treats all of its logical devices as if they were receiving reset adapter decide commands.
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6-4 Start-Up and Operation
Publication 1747-UM006B-EN-P - June 2003
Inhibit Condition
When any of the 1747-ASB module's logical devices are inhibited before communication with all of its logical devices occur at least once:
•
The inhibited logical devices do not communicate on the RIO link.
•
The enabled logical devices communicate on the RIO link.
•
The 1747-ASB module does not send output data to any of its output modules, even those that are enabled.
•
The 1747-ASB module does not process any RIO block transfer writes.
•
The 1747-ASB module sends new input data from its input modules to the scanner for enabled devices.
•
The 1747-ASB module processes RIO block transfers reads for enabled devices.
The position of the processor restart lockout switch (PRL) affects the
1747-ASB module's inhibit functionality. If processor restart lockout is
selected, and any logical device assigned to the 1747-ASB module is inhibited after all of the logical devices have received RIO link communications from the scanner at least once:
•
All of the 1747-ASB module's logical devices stop communicating on the RIO link.
•
The 1747-ASB module does not send any output data to any of its output modules.
•
Discrete outputs are held in their last state if hold last state is selected, or discrete outputs are reset if hold last state is not selected.
•
The 1747-ASB module does not process any RIO block transfers.
If processor restart lockout is not selected and any logical device assigned to the 1747-ASB module is inhibited after all of the logical devices have received RIO link communications from the scanner at least once:
•
The inhibited logical devices stop communicating on the RIO link.
•
The enabled logical devices continue to communicate on the
RIO link.
•
The 1747-ASB module does not send new output data to any logical device output module, even those that are enabled.
Start-Up and Operation 6-5
•
Discrete outputs are held in their last state if hold last state is selected, or discrete outputs are reset if hold last state is not selected.
•
The 1747-ASB module does not process any RIO block transfer writes.
•
The 1747-ASB module sends new input data from its input modules to the scanner for enabled logical devices.
•
The 1747-ASB module processes RIO block transfer reads for enabled logical devices.
IMPORTANT
Reset, adapter reset and reset, adapter decide commands are always ignored by the 1747-ASB module when any of its logical devices are inhibited.
See page 7-2 for information regarding status codes.
The following table provides specific information concerning how the inputs and outputs are handled during normal operation and when communication exceptions occur. Notice that the hold last state setting makes a difference in the control of the discrete outputs and how the specialty I/O modules may operate.
1747-ASB Condition
Waiting for communications after powerup
Normal running
Hold last state selected
(2)
1747-ASB module inhibited
Loss of communications
Reset adapter decide
1747-ASB module inhibited
Hold last state selected or not selected
(3)
Loss of communications
Reset adapter decide
Reset adapter reset commands received
Major error
(4)
Minor error
(5)
Expansion chassis power loss
Specialty I/O Module
Outputs
SLC State
(1)
Not updated
Changing
Not updated
Not updated
Updated
Updated
Not updated
Not updated
Not updated
Test
Run
Run
Test
Test
Program/Fault
Program/Fault
Program/Fault
Discrete
Outputs
Cleared
Changing
Cleared
Cleared
Cleared
Cleared
All Inputs
Read
Read
Read
Read
Read
Not read
Not read
Cleared Not read
(1) This is the 1747-ASB module's operating mode, as compared to an SLC processor. For example, if the SLC state is TEST, the 1747-ASB module is controlling the specialty I/O modules in the same manner as an SLC processor would in the test mode. Refer to the appropriate SLC specialty I/O user's manual for more information.
(2) After the 1747-ASB module enters the Run mode.
(3) Before the 1747-ASB module enters the Run mode.
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6-6 Start-Up and Operation
Remote Expansion Chassis
Power Loss
If power to any remote expansion chassis is lost, a 1747-ASB module error occurs. When power to the remote expansion chassis is restored, the 1747-ASB module acts as if its own chassis power was cycled and resets itself, restoring normal operation unless a major fault occurred.
The 1747-ASB module assigns each slot in the remote chassis and remote expansion chassis a fixed amount of its image using slot addressing. The 1747-ASB module then maps the I/O module's images to the portion of the 1747-ASB image that is assigned to their slots.
Invalid RIO Link Transfers
If the I/O module in any slot is block transfer mapped, the 1747-ASB module expects data for that I/O module to be transferred on the RIO link using RIO block transfers. If the I/O module in any slot is discretely mapped, the 1747-ASB expects data for that I/O module to be transferred on the RIO link using RIO discrete transfers.
An Invalid RIO link transfer occurs when the 1747-ASB module receives data for a slot in a manner other than that for which the
1747-ASB module is expecting to receive data for that slot.
Invalid RIO link transfers are categorized below. Errors are not generated by these conditions:
•
RIO discrete or block transfers to empty or nonexistent slots
•
RIO discrete transfers to block transfer slots
•
RIO block transfers to discrete slots
• invalid length RIO block transfers
RIO Discrete or Block Transfers To Empty or Nonexistent Chassis
Slots
Discrete output image data received by the 1747-ASB module or RIO block transfers to empty or nonexistent slots are ignored by the
1747-ASB module.
Discrete input image data sent by the 1747-ASB module for empty or nonexistent slots are all zeros.
Publication 1747-UM006B-EN-P - June 2003
Testing the 1747-ASB
Module
Start-Up and Operation 6-7
RIO Discrete Transfers To Block Transfer Chassis Slots
Discrete output image data received by the 1747-ASB module for a block transfer slot is ignored by the 1747-ASB module.
Discrete input image data from the 1747-ASB module for block transfer slots may be non-zero.
RIO Block Transfers To Discrete Chassis Slots
RIO block transfers to the 1747-ASB module for discrete slots are ignored by the 1747-ASB module.
IMPORTANT
Performing an RIO block transfer to a discrete chassis slot which has an output module in it may cause outputs on that module to turn on.
Invalid Length RIO Block Transfers
An invalid length RIO block transfer occurs when:
1. An RIO block transfer to an I/O module controlled by the
1747-ASB module is larger than the I/O module's image size.
For example, if an eight word RIO block transfer is made to a
I/O module with an image size of four words, an invalid length
RIO block transfer has occurred.
2. An RIO block transfer write is made to a slot that contains a module that only has input image.
3. An RIO block transfer read is made from a slot that contains a module that only has output image.
4. Invalid length block transfers are ignored by the 1747-ASB module.
The 1747-ASB module can be tested prior to beginning normal operation by following the procedure provided below:
1. Install the 1747-ASB module and I/O modules into the remote chassis, and if necessary, remote expansion chassis. Make sure the PLC or SLC processor is in the program mode.
Publication 1747-UM006B-EN-P - June 2003
6-8 Start-Up and Operation
2. Apply power to all chassis.
3. After completing power up diagnostics, the 1747-ASB module display appears as shown below:
ADAPTER
COMM FAULT
Green COMM LED is off.
Red Fault LED is off.
STATUS
4. Configure the PLC or SLC processor so that the scanner will communicate on the RIO link with the 1747-ASB module. Place the processor in the test mode. The 1747-ASB module display appears as shown below:
Green COMM LED is off.
Status display indicates a reset, adapter reset condition.
ADAPTER
COMM FAULT
Red Fault LED is off.
STATUS
Green COMM LED is off.
Status display indicates a reset, adapter decide condition.
ADAPTER
COMM FAULT
Red Fault LED is off.
STATUS
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Start-Up and Operation 6-9
When the 1747-ASB module is receiving reset, adapter reset or reset, adapter decide commands, it:
• returns input data for all of its input modules and sends output data to all of its specialty I/O modules. It does not turn any discrete outputs on.
• processes all discrete and block transfers
• controls the specialty I/O modules in the same manner as an
SLC processor in TEST mode. How each specialty I/O module responds to the TEST mode is specific to each specialty I/O module. Refer to its user manual for more information.
ATTENTION
!
I/O modules must not be inserted or removed when the remote chassis or remote expansion chassis is powered. Damage to the I/O module and/or remote chassis or remote expansion chassis may result.
The following describes how the 1747-ASB module responds if an I/O module is inserted or removed from a remote chassis or remote expansion chassis when no 1747-ASB module error is present.
(1)
I/O Module Insertion into a Slot
When an I/O module is inserted, a 1747-ASB module error occurs and all discrete outputs under its control are cleared regardless of the hold last state selection.
I/O Module Removal from a Scanned Slot
When an I/O module is removed from a slot being scanned by the
1747-ASB module, a 1747-ASB module error occurs and all discrete outputs under its control are cleared regardless of the hold last state selection.
Any I/O module that has input image and is mapped into the
1747-ASB module image, is always scanned by the 1747-ASB module.
(1) Loss of power to the remote chassis or remote expansion chassis is considered a 1747-ASB module error. I/O modules can be inserted or removed from a remote expansion chassis that is not powered, even if the remote chassis is powered. Each chassis has its own power supply.
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6-10 Start-Up and Operation
Any discrete I/O module or discretely mapped specialty I/O module which is mapped into the 1747-ASB module image having only output image, is scanned by the 1747-ASB module unless:
•
The 1747-ASB module is not receiving communications from the scanner.
•
The 1747-ASB module is receiving reset, adapter decide commands and the discrete outputs are being held in their last state.
Any block transfer mapped specialty I/O module which is mapped into the 1747-ASB image having only output image, is scanned by the
1747-ASB module only when a block transfer write to the I/O module occurs.
I/O Module Removal from an Unscanned Slot
When an I/O module is removed from a slot not being scanned by the
1747-ASB module, a 1747-ASB error does not occur and all discrete outputs under its control are not affected.
Any I/O module not mapped into the 1747-ASB module image is never scanned by the 1747-ASB module.
Any block transfer mapped specialty I/O module which is mapped into the 1747-ASB image having only output image, is scanned by the
1747-ASB module only when a block transfer write occurs.
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1
Troubleshooting
Introduction
Chapter
7
Troubleshooting
This chapter presents status display information during operational and fault conditions.
The 1747-ASB module has two LEDs and a status display. These LEDs and status display are used to indicate operating status and error conditions while the module is operating.
Green COMM LED
ADAPTER
COMM FAULT
RED COMM LED
Status Display indicated a unique alphanumeric pattern.
STATUS
There are two types of errors: major and minor. A major error is indicated by a constant red Fault LED. This type of error is usually associated with the 1747-ASB module. A minor error is indicated by a flashing red Fault LED. This type of error is usually associated with a configuration error.
IMPORTANT
The 1747-ASB status displays are scanned one at a time at a high rate of speed by the 1747-ASB module.
Visually it appears as if the displays are all on at the same time. If the status display is flickering pronouncedly, the signal integrity on the RIO link has been compromised by environmental noise, improper termination, and/or improper cable installation. This compromise results in a drop in the scan rate of the 1747-ASB module displays.
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7-2 Troubleshooting
Contacting Rockwell
Automation
If you need to contact Rockwell Automation for assistance, please have the following information available when you call:
•
Processor type, 1747-ASB series letter, and firmware (FRN) number. See label on left side of processor and 1747-ASB module.
•
LED status and error codes
• hardware types in the system including I/O modules and chassis
Status Operating Codes for
Normal Operating
Conditions
COMM
LED
on
FAULT
LED
off
Status
Display
Operating Condition
Normal RIO Communications off off off flashing flashing off off off off off
No RIO Communications
(1)
Partial RIO Communications
(2)
Processor Lockout is Preventing RIO
Communications
Reset, Adapter Decide Commands
Reset, Adapter Reset Commands
(1) When the 1747-ASB module is holding outputs in their last state, the Status Display alternates between the operating indication and HLS.
(2) Some, but not all of the 1747-ASB module's logical devices are receiving RIO link communications from the scanner. The 1747-ASB module is returning valid input data to the scanner, but is not turning outputs on or off.
(3) The 1747-ASB module is locking the processor out while it is trying to communicate with all of the
1747-ASB module's logical devices.
Publication 1747-UM006B-EN-P - June 2003
Troubleshooting 7-3
Error Codes for Error
Conditions
COMM
LED
off
FAULT
LED
on
Status
Display
off off off off off off off off off off on on on on on flashing flashing flashing flashing flashing
or
Error Condition Corrective Action
Power Up Self Test in progress
Powerup OK. 1747-ASB configuring RIO image.
Powerup Self Test Error (normal operating mode)
Runtime RAM Fault
Watchdog Reset Detected
(1)
This appears for less than one second after power is applied.
Replace the 1747-ASB module if condition persists.
This occurs for several seconds after power is applied. Replace the 1747-ASB module if condition persists.
Cycle power to reset the
1747-ASB module. If the problem persists, replace the 1747-ASB module.
Cycle power to reset the
1747-ASB module. If the problem persists, replace the 1747-ASB module.
Cycle power to reset the
1747-ASB module. If the problem persists, replace the 1747-ASB module.
Configuration Store Fault
(EEPROM failed write verification). The non-volatile memory is not being written correctly when powering up in
Save Mode.
Remote Power Fail (expansion chassis powered down)
Cycle power to reset the
1747-ASB module. If the problem persists, replace the 1747-ASB module.
Apply power to all remote expansion chassis. Check remote expansion cable connections.
Remove the extra chassis.
Bad Number of chassis (extra expansion chassis, 4 or more)
Invalid Starting Group (logical group 2 or 6 selected with
1/2-slot addressing).
Undefined Addressing Mode
Select starting logical group 0 or 4
(SW1-7,8).
1747-ASB Module Image Size
Too Large (above 2 logical racks for 2-slot addressing)
Check addressing mode selection
(SW3-5,6).
Check image size selection
(SW2-5,6,7,8). 16 logical groups is the maximum size when 2-slot addressing is selected.
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7-4 Troubleshooting off off off off off off off off flashing flashing flashing flashing flashing flashing flashing flashing
Slot #
Slot #
Code 1
and
Code 2
Code 3
and
Slot #
Illegal logical Rack Address (8 or above in primary mode or 63 in complementary mode).
Last Address Exceeded (image crosses into logical rack 8 in primary mode or logical rack 63 in complementary mode)
Last Chassis Not Allowed (when primary mode is selected)
Invalid Baud Rate
Check the starting logical rack number (SW1-1,2,3,4,5,6).
Check the starting logical rack number (SW1-1,2,3,4,5,6), starting logical group number (SW1-7,8), and image size selection
(SW2-5,6,7,8).
Check primary/complementary chassis selection (SW2-3), and the last chassis selection (SW3-4).
Check baud rate selection
(SW2-1,2).
I/O Module Placement Error.
(2)
The I/O module in slot# may have its image overlapping the image of the I/O module in its paired slot.
32 point module may be installed in slot# and 2-slot addressing is selected.
Module in slot# has only part of its image assigned to the
1747-ASB image (1/2-slot addressing and discrete mode only).
An Unsupported I/O Module is installed in slot#.
Check the addressing mode
(SW3-5,6) and the I/O module type installed in this slot.
Remove the 32 point module or change the addressing mode
(SW3-5,6).
Change 1747-ASB module image size (SW2-5,6,7,8) or specialty mode (SW3-9).
Remove the unsupported I/O module.
DIP Switch Configuration
Mismatch.
(3)
The DIP switch values that were stored when the
1747-ASB module was powered up in save mode (SW3-8) do not match the current settings now that the 1747-ASB module is in check mode.
I/O Configuration Mismatch and
The I/O module configuration that was stored when the 1747-ASB module was powered up in save mode
(SW3-8) does not match the configuration now that the
1747-ASB module is in check mode due to a problem with slot#.
Change the incorrect switch settings, or change to Save Mode.
Correct the I/O module configuration problem or change to the Save Mode.
Publication 1747-UM006B-EN-P - June 2003
Troubleshooting 7-5 off off off flashing flashing flashing
Code 4
and
Slot #
Configuration Read Fault (data in
EEPROM not valid). The configuration stored in non-volatile memory is not valid when powering up in Check
Mode.
Duplicate Adapter Address.
There is another adapter on the
RIO link that has the same RIO address as the 1747-ASB module.
I/O Runtime Fault (Error,
Change to Save Mode and restore power. Change back to Check
Mode and restore power.
Check the 1747-ASB module's starting logical rack number
(SW1-1,2,3,4,5,6), and the
1747-ASB module's starting logical group number (SW1-7,8), and the 1747-ASB module's image size (SW2-5,6,7,8).
Check the I/O module in slot#.
Cycle power to the 1747-ASB module and the I/O module. If the condition persists, replace the I/O module.
on on Module is in test mode.
Check jumper pins on bottom of
1747-ASB module. Make sure they are not connected to anything.
(1) 8 indicates the 1747-ASB module has encountered an unrecoverable fault.
(2) Slot # is a 2-digit decimal slot number between 1 and 31. 31 indicates the offending slot could not be detected.
(3) The Status Display alternates between these two codes. Code 1 is the incorrect parameter, Code 2 is the expected (saved) parameter`s value.
(4) The Status Display alternates between these two codes. Code 3 indicates a module configuration mismatch.
(5) The Status Display alternates between these two codes. Code 4 indicates an I/O Error.
DIP Switch Configuration Mismatch Fault Codes - Codes 1 and 2
Code 1
(1)
Code 2
(2) to
Meaning
Starting Logical Rack mismatch.
2-digit decimal value previously saved is displayed (rack 00 to rack 62).
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7-6 Troubleshooting
Publication 1747-UM006B-EN-P - June 2003
or or or
Starting Logical Group mismatch.
1-digit decimal value previously saved is displayed (group 0, group 2, etc.).
or or
Baud Rate mismatch.
Baud rate previously saved is displayed.
Abbreviated values are used.
Primary/Complementary Selection mismatch.
The mode previously saved is displayed.
or to
Image Size mismatch.
Number of groups from 02 to 32 decimal indicates previously saved selection.
or
Hold Last State (HLS) Selection mismatch. Yes or no indicates if the HLS was (yes) or was not (no) the previously saved selection.
or or
Processor Restart Lockout (PRL) Selection mismatch. Yes or no indicates if the PRL was
(yes) or was not (no) the previously saved selection.
Link Response Selection mismatch.
Unrestricted (unr) or Restricted (rSd) indicates previously saved selection.
Last Chassis/PLC-3 Backup mismatch.
or
Troubleshooting 7-7
or or
Addressing Mode mismatch.
1/2-slot, 1-slot, and 2-slot indicates previously saved selection.
or
Specialty I/O Mode mismatch.
Discrete (dSc) or Block Transfer (bL) indicates previously saved selection.
(1)
C stands for configuration, the first number from the left is the DIP switch number (SW1,
SW2, or SW3). The second number stands for the highest individual switch number (1 - 8).
C38 is switch SW3, switch 8.
(2)
This is the saved parameter setting.
I/O Module Configuration Mismatch Fault Codes - Code 3
Code 3
(1) Meaning
I/O module missing from the previously saved configuration.
I/O module detected in an unused slot of the previously saved configuration.
I/O Module Electrical Interface Type. Not the same as the saved configuration such as a DC output module being placed in an AC output slot.
I/O Module Mix or Class. Not the same as the saved configuration such as a DC 16-point input module placed in an 8 point DC input slot.
(1) The fault code is alternated with the corresponding slot number (L slot#).
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7-8 Troubleshooting
I/O Runtime Fault Codes - Code 4
Code 4
(1)
Meaning
I/O Parity Error
Hardware Parity Error or module installed or removed under power
I/O Module Removed Under Power
File Access Grant Timeout (specialty I/O only)
I/O Module Fault (generic) through
I/O Module Reported Error Code
I/O Module Reported Error Code Unknown
Module Inserted Under Power
(1) The fault code is alternated with the corresponding slot number (L slot#).
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1
Chapter
8
Application Examples
This chapter presents two SLC 500 examples and one PLC-5/40 example. The application examples consist of:
• system overview
• device configuration
• processor image
•
1747-ASB module configuration details
• mapping details
• address label explanation
• application program excerpt
The following is a very basic SLC 500 remote I/O application example.
This application consists of an SLC 5/02 processor controlling one local and one remote chassis of I/O.
(1)
The local I/O resides in a
4-slot chassis, consisting of:
Basic SLC 500 Example
Using and RIO Scanner
•
1746-OW8, 8-point AC/DC relay output module
•
1746-NIO4I, analog I/O combination module (2 current/voltage inputs and 2 current outputs)
A RIO scanner, Catalog Number 1747-SN, resides in slot 3 of the local chassis. The scanner controls one remote 7-slot chassis using one
1747-ASB module.
The 1747-ASB module controls the following I/O modules:
•
1746-IA16, 16-point 100/120 VAC input module in slots one, two, and three
•
1746-OA16, 16-point AC output module in slots four, five, and six
(1) An SLC 5/02 or greater processor is needed for the RIO scanner.
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8-2 Application Examples
The application is illustrated below. When the switch is closed, bulbs
1 and 2 turn on and an analog signal is moved to analog module output 1, which leads to the meter.
Publication 1747-UM006B-EN-P - June 2003
The meter is connected to output 1.
0 1 2 3
The switch is connected to input 15.
0 1 2 3 4 5 6
Bulb 2 is connected to output 12.
Bulb 1 is connected to output 4.
RIO Device Configuration
The 1747-ASB module is configured in the following manner.
Function
Starting logical rack number
Starting logical group number 0
Image size (number of logical groups) 6
1747-ASB Module 1
0
Addressing mode
Specialty I/O mode
(1)
1-slot
Discrete
Baud rate
Last chassis
Hold last state
Processor restart lockout
230.4K
Yes
Yes
Yes
Link response
(2) Switch position does not matter
Complementary Primary/complementary chassis
(1) The 1747-SN Series A scanner cannot perform block transfers. Any specialty I/O modules controlled by this scanner must be discretely mapped.
(2) Link response does not matter at 230.4K baud.
Application Examples 8-3
For more details on the 1747-SN RIO scanner, refer to the user manual, publication 1747-6.6.
The RIO scanner is configured for 230.4K baud. The SLC 5/02 G-file is configured as shown below:
1747-ASB
Bit Number Decimal
Starting Logical Group, Word 1
Device Size, Word 2
15 14 13
6
0
0
Logical Rack 3
Starting Group
4 2
0
0
0
0
12
0
0
0
11 10 9
6
0
0
Logical Rack 2
Starting Group
4 2
0
0
0
0
8
0
0
0
7 6 5
6
0
0
Logical Rack 1
Starting Group
4 2
0
0
0
0
4
0
0
0
3 2 1 0
6
0
0
Logical Rack 0
Starting Group
4 2
0 0
1 1
0
1
1
Logical Rack 0 consists of one logical device, beginning at Group 0. The device size is six logical groups.
SLC Processor Image
Shown below are the SLC processor's input and output image. The
SLC processor image is comprised of the local I/O module images and the RIO scanner images. The RIO scanner image size is four logical racks. The 1747-ASB module is in the RIO scanner image.
Logical
Rack 0
Logical
Rack 1
Logical
Rack 2
Logical
Rack 3
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
SLC Processor Input Image
Bit Number (Decimal)
15 8 7 0
NIO4I
IA16
IA16
IA16
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
NIO4I
IA16
IA16
IA16
I:3.25
I:3.26
I:3.27
I:3.28
I:3.29
I:3.30
I:3.31
I:3.16
I:3.17
I:3.18
I:3.19
I:3.20
I:3.21
I:3.22
I:3.23
I:3.24
I:3.7
I:3.8
I:3.9
I:3.10
I:3.1 1
I:3.12
I:3.13
I:3.14
I:3.15
I:2.0 & .1
I:3.0
I:3.1
I:3.2
I:3.3
I:3.4
I:3.5
I:3.6
Local SLC Chassis
remote slot 1 remote slot 2 remote slot 3 remote slot 4 remote slot 5 remote slot 6
Scanner Image
SLC Processor Output Image
Bit Number (Decimal)
15 8 7
Logical
Rack 0
Logical
Rack 1
Logical
Rack 2
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Logical
Rack 3
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
I = input image
O = output image
:3 = slot # RIO scanner uses in local SLC chassis
.x = scanner word
NIO4I
OA16
OA16
OA16
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
OW8
NIO4I
OA16
OA16
OA16
0
O:3.21
O:3.22
O:3.23
O:3.24
O:3.25
O:3.26
O:3.27
O:3.28
O:3.29
O:3.30
O:3.31
O:3.12
O:3.13
O:3.14
O:3.15
O:3.16
O:3.17
O:3.18
O:3.19
O:3.20
O:1.0
O:2.0 & .1
O:3.0
O:3.1
O:3.2
O:3.3
O:3.4
O:3.5
O:3.6
O:3.7
O:3.8
O:3.9
O:3.10
O:3.1 1
Local SLC Chassis
remote slot 1 remote slot 2 remote slot 3 remote slot 4 remote slot 5 remote slot 6
Scanner Image
Publication 1747-UM006B-EN-P - June 2003
8-4 Application Examples
The default configuration size of the scanner image is 32 words. You can specify that the SLC 5/02 processor scan is less than 32 words with your programming device.
1747-ASB Module Configuration Details
The entire image of the 1747-ASB module is contained in logical rack 0. It does not cross a logical rack boundary. Therefore, it appears as one logical device to the scanner.
SLC Processor Input Image
Bit Number (Decimal)
15 8 7 0
Logical
Rack 0
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
NIO4I
IA16
IA16
IA16
Not Used
Not Used
Not Used
Not Used
Not Used
NIO4I
IA16
IA16
IA16
I:2.0 & .1
I:3.0
I:3.1
I:3.2
I:3.3
I:3.4
I:3.5
I:3.6
I:3.7
Local SLC Chassis
remote slot 1 remote slot 2 remote slot 3 remote slot 4 remote slot 5 remote slot 6
Scanner Image
SLC Processor Output Image
Bit Number (Decimal)
15
Logical
Rack 0
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
8 7
NIO4I
Not Used
Not Used
Not Used
OA16
OA16
OA16
Not Used
Not Used
OW8
NIO4I
OA16
OA16
OA16
0
O:1.0
O:2.0 & .1
O:3.0
O:3.1
O:3.2
O:3.3
O:3.4
O:3.5
O:3.6
O:3.7
Local SLC Chassis
remote slot 1 remote slot 2 remote slot 3 remote slot 4 remote slot 5 remote slot 6
Scanner Image
The 1747-ASB module is configured as the last chassis because it uses the highest numbered logical group in the highest logical rack it resides in.
The 1747-ASB module is configured for hold last state and processor restart lockout. If the RIO communications cable is removed and reconnected during normal RIO communications, the discrete outputs remain in their last state and the 1747-ASB module does not resume communicating with the scanner, until the processor restart lockout terminals are momentarily shorted together. For more information regarding processor restart lockout, refer to chapter 4.
The 1747-ASB module is configured as a complementary chassis.
Because complementary I/O is not being used, there is no need for a primary chassis.
1747-ASB Module I/O Mapping Details
The 1747-ASB module is configured for 1-slot addressing. Its image starts at group 0 of logical rack 0 and is sized for six logical groups.
There are six 16-bit words of input and output image for its three
16-point input and output modules.
Publication 1747-UM006B-EN-P - June 2003
Application Examples 8-5
Three input and output image words are not used. However, when using 16-point I/O, 1-slot addressing provides I/O configuration flexibility. The modules can be inserted into any slot, in any order.
Slots 1, 2, and 3 contain 16-point input modules. The output words assigned to these slots are unused.
Slots 4, 5, and 6 contain 16-point output modules. The input words assigned to these slots are unused.
SLC Processor Input Image
Bit Number (Decimal)
15 8 7 0
Logical
Rack 0
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
NIO4I
IA16
IA16
IA16
Not Used
Not Used
Not Used
Not Used
Not Used
NIO4I
IA16
IA16
IA16
I:3.3
I:3.4
I:3.5
I:3.6
I:3.7
I:2.0 & .1
I:3.0
I:3.1
I:3.2
Local SLC Chassis
remote slot 1 remote slot 2 remote slot 3 remote slot 4 remote slot 5 remote slot 6
Scanner Image
SLC Processor Output Image
Bit Number (Decimal)
15
Logical
Rack 0
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
8 7
NIO4I
Not Used
Not Used
Not Used
OA16
OA16
OA16
Not Used
Not Used
OW8
NIO4I
OA16
OA16
OA16
0
O:1.0
O:2.0
O:3.0
O:3.1
O:3.2
O:3.3
O:3.4
O:3.5
O:3.6
O:3.7
RIO Address Label Examples
Due to the 1747-ASB module's addressing modes and RIO link operation, the I/O modules controlled by the 1747-ASB module are addressed by the SLC processor based on the slot location of the SN and the word that the I/O module uses in the SN image. A label kit is included with each 1747-ASB module to assist you in addressing I/O modules.
Publication 1747-UM006B-EN-P - June 2003
8-6 Application Examples
Shown below are examples of how the labels are filled out.
0 1 2 3
0 1 2 3 4 5 6
The meter is connected to output 1.
The switch is connected to input 15.
0 – 7
âś“
SN Slot
SN Word(s)
3
8 – 15
âś“
0
BT Discrete
Remote SLC System
The 0 –7 and 8–15 boxes are checked because the module requires more than one byte of image.
The SN Slot is 3 because that is the slot the scanner occupies in the local SLC chassis.
The SN Word is 0 because it is the SN image word assigned to the IA16. These values are determined by converting the module’s logical rack and logical group numbers (logical rack 0, G0) to the corresponding SN words.
Bulb 2 is connected to output 12.
0 – 7
âś“
SN Slot
SN Word(s)
3
8 – 15
âś“
3
BT Discrete
Remote SLC System
The 0 –7 and 8–15 boxes are checked because the module requires more than one byte of image.
The SN Slot is 3 because that is the slot the scanner occupies in the local
SLC chassis.
The SN Word is 3 because it is the
SN image word assigned to the
OA16. The value is determined by converting the module’s logical rack and logical group numbers (logical rack 0, G3) to the corresponding SN word.
Bulb 1 is connected to output 4.
0 – 7
âś“
SN Slot
SN Word(s)
3
8 – 15
âś“
4
BT Discrete
Remote SLC System
The 0 –7 and 8–15 boxes are checked because the module requires more than one byte of image.
The SN Slot is 3 because that is the slot the scanner occupies in the local
SLC chassis.
The SN Word is 4 because it is the
SN image word assigned to the
OA16. These values are determined by converting the module’s logical rack and logical group numbers
(logical rack 0, G4) to the corresponding SN word.
Publication 1747-UM006B-EN-P - June 2003
Application Examples 8-7
Application Example Program
Shown below is an excerpt from the user program. When the switch is closed, bulbs 1 and 2 turn on and the decimal value 5555 is moved to analog output 1 and is converted to an analog signal.
I:3.0
] [
15
MOV
MOVE
Source 5555
Switch
Dest O:2.1
Meter
O:3.4
( )
4
Bulb 1
O:3.3
( )
12
Bulb 2
This application consists of an SLC 5/02 processor controlling local and remote I/O.
(1)
The local I/O resides in a 4-slot chassis, consisting of:
•
1746-OW8, 8-point AC/DC relay output module
•
1746-IA8, 8-point AC input module
Basic SLC 500 Example
Using and RIO Scanner
An RIO scanner, Catalog Number 1747-SN, resides in slot 3 of the local chassis. The scanner controls two remote expansion chassis (one
7-slot and one 4-slot) and a RediPANEL.
1747-ASB module 1 controls the following I/O modules:
•
1746-NIO4I, analog module (2 current/voltage inputs and 2 current outputs)
•
1746-IV32, 32-point 24VDC sourcing input module
•
1746-OV32, 32-point 24VDC sinking output module
•
1746-OB16, 16-point DC sourcing output module
•
1746-OA16, 16-point AC output module
(1) An SLC 5/02 or greater processor is needed for the RIO scanner.
Publication 1747-UM006B-EN-P - June 2003
8-8 Application Examples
1747-ASB module 2 controls the following I/O modules:
•
1746-OA8, 8-point AC output module
•
1746-IO12, 6-point input/output module
•
1746-IA16, 16-point AC input module
The application is illustrated below. When the switch is closed, bulbs
1 and 2 turn on and an analog signal is moved to analog module output 1, which leads to the meter.
RediPANEL
0 1 2 3
0 1 2 3 4 5 6
The meter is connected to output 1.
The switch is connected to input 17.
Bulb 2 is connected to output 12.
0 1 2 3
Bulb 1 is connected to output 4.
Publication 1747-UM006B-EN-P - June 2003
Application Examples 8-9
RIO Device Configuration
The 1747-ASB modules and RediPANEL are configured in the following manner.
Function
Starting logical rack number
Starting logical group number
Image size (number of logical groups)
Addressing mode
Specialty I/O mode
Baud rate
Last chassis
Hold last state
Link response
(3)
(2)
Processor restart lockout
Primary/complementary chassis
1
6
1747-ASB
Module 1
6
1-slot
Discrete
0
0
1747-ASB
Module 2
2
2-slot
Discrete
RediPANEL
(1)
2
4
4
Not applicable
Not applicable
230.4K
No
Yes
230.4K
Yes
No
230.4K
Yes
Not applicable
Yes
Switch position does not matter
No
Switch position does not matter
Not applicable
Not applicable
Complementary Complementary Not applicable
(1) The only part of the RediPANEL configuration that is important is the RIO address and baud rate.
(2) The 1747-SN Series A scanner cannot perform block transfers. Any specialty I/O modules controlled by this scanner must be discretely mapped.
(3) Link response does not matter at 230.4K baud.
For more details on the 1747-SN RIO scanner, refer to the user manual.
The RIO scanner is configured for 230.4K baud. The SLC 5/02 G-file is configured as shown below:
RediPANEL 1747-ASB #1 1747-ASB #2
Bit Number Decimal
Starting Logical Group, Word 1
Device Size, Word 2
6
0
0
15 14 13
Logical Rack 3
Starting Group
4 2
0
0
0
0
12
0
0
0
11
6
0
1
10 9
Logical Rack 2
Starting Group
4 2
1
1
0
1
8
0
1
1
7
6
1
1
6 5
Logical Rack 1
Starting Group
4 2
0
0
0
0
4
0
0
0
3 2 1
6
0
0
Logical Rack 0
Starting Group
4 2
0
0
0
0
0
0
1
1
Logical Rack 2 consists of two logical devices. The first one begins at Group 0. The device size is four logical groups. The second one begins at Group 4.
The device size is four logical groups.
Logical Rack 1 consists of one logical device, beginning at Group 6.
The device size is two logical groups.
Logical Rack 0 consists of one logical device, beginning at Group 0.
The device size is two logical groups.
Publication 1747-UM006B-EN-P - June 2003
8-10 Application Examples
SLC Processor Image
Shown below are the SLC processor's input and output image. The
SLC processor image is comprised of the local I/O module images and the RIO scanner images. The RIO scanner image size is four logical racks. 1747-ASB module 1, 1747-ASB module 2, and the RediPANEL are in the RIO scanner image.
SLC Processor Input Image
Bit Number (Decimal)
Logical
Rack 0
Logical
Rack 1
Logical
Rack 2
Logical
Rack 3
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
15 8 7
IO12
IA16
NIO4I
NIO4I
IV32
IV32
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
IA8
IA16
NIO4I
NIO4I
IV32
IV32
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
0
I:3.18
I:3.19
I:3.20
I:3.21
I:3.22
I:3.23
I:3.24
I:3.25
I:3.26
I:3.27
I:3.28
I:3.29
I:3.30
I:3.31
I:3.9
I:3.10
I:3.11
I:3.12
I:3.13
I:3.14
I:3.15
I:3.16
I:3.17
I:3.4
I:3.5
I:3.6
I:3.7
I:3.8
I:2.0
I:3.0
I:3.1
I:3.2
I:3.3
Local SLC Chassis
1747-ASB Module 2
Scanner Image
1747-ASB Module 1
RediPANEL
SLC Processor Output Image
Bit Number (Decimal)
15 8 7 0
Logical
Rack 0
Logical
Rack 1
Logical
Rack 2
Logical
Rack 3
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
IO12
NIO4I
NIO4I
OV32
OV32
OB16
OA16
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
NIO4I
NIO4I
OV32
OV32
OB16
OA16
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
OW8
OA8
O:3.18
O:3.19
O:3.20
O:3.21
O:3.22
O:3.23
O:3.24
O:3.25
O:3.26
O:3.27
O:3.28
O:3.29
O:3.30
O:3.31
O:3.9
O:3.10
O:3.11
O:3.12
O:3.13
O:3.14
O:3.15
O:3.16
O:3.17
O:1.0
O:3.0
O:3.1
O:3.2
O:3.3
O:3.4
O:3.5
O:3.6
O:3.7
O:3.8
1747-ASB Module 1 Configuration Details
Because 1747-ASB module 1's image crosses the logical rack boundary of racks 1 and 2, 1747-ASB module 1 appears as two logical devices to the RIO scanner.
SLC Processor Input Image
Bit Number (Decimal)
Logical
Rack 1
Logical
Rack 2
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
15
NIO4I
NIO4I
IV32
IV32
8 7
NIO4I
NIO4I
IV32
IV32
0
I:3.14
I:3.15
I:3.16
I:3.17
I:3.18
I:3.19
I:3.20
I:3.21
I:3.22
I:3.23
1747-ASB
Module 1
RediPANEL
SLC Processor Output Image
Bit Number (Decimal)
Logical
Rack 1
Logical
Rack 2
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
15
NIO4I
NIO4I
OV32
OV32
OB16
OA16
8 7
NIO4I
NIO4I
OV32
OV32
OB16
OA16
0
O:3.14
O:3.15
O:3.16
O:3.17
O:3.18
O:3.19
O:3.20
O:3.21
O:3.22
O:3.23
1747-ASB
Module 1
RediPANEL
Publication 1747-UM006B-EN-P - June 2003
Application Examples 8-11
1747-ASB module 1 is not configured as the last chassis because the highest numbered logical group it uses (Group 3) is not the highest numbered logical group in the highest logical rack it resides in. The
RediPANEL uses the highest numbered logical group (Group 7) in logical rack 2.
1747-ASB module 1 is configured for hold last state and processor restart lockout. If the RIO communications cable is removed and reconnected during normal RIO communications, the discrete outputs remain in their last state and the 1747-ASB module does not resume communicating with the scanner, until the processor restart lockout terminals are momentarily shorted together. For more information regarding processor restart lockout, refer to chapter 4.
1747-ASB module 1 is configured as a complementary chassis.
Because complementary I/O is not being used, there is no need for a primary chassis.
1747-ASB Module 2 Configuration Details
Because 1747-ASB module 2's image does not cross the logical rack boundary, 1747-ASB module 2 appears as one logical device to the scanner.
SLC Processor Input Image
Bit Number (Decimal
Logical
Rack 0
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
15
IO12
IA16
8 7
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
IA16
0
I:3.0
I:3.1
I:3.2
I:3.3
I:3.4
I:3.5
I:3.6
I:3.7
1747-ASB
Module 2
SLC Processor Output Image
Bit Number (Decimal)
15
Logical
Rack 0
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
IO12
8 7
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
OA8
0
O:3.0
O:3.1
O:3.2
O:3.3
O:3.4
O:3.5
O:3.6
O:3.7
1747-ASB
Module 2
1747-ASB module 2 is configured as last chassis because it has the highest numbered logical group (group 1) in the highest numbered logical rack (rack 0).
1747-ASB module 2 is not configured for hold last state and processor restart lockout. If the RIO communications cable is removed and reconnected during normal RIO communications, the discrete outputs are reset and the 1747-ASB module automatically resumes communicating with the scanner.
1747-ASB module 2 is configured as a complementary chassis.
Because complementary I/O is not being used, there is no need for a primary chassis.
Publication 1747-UM006B-EN-P - June 2003
8-12 Application Examples
1747-ASB Module 1 I/O Mapping Details
Because 1747-ASB module 1 is configured for 1-slot addressing, has six logical groups and six slots available for I/O, all of the slots present are mapped into the scanner image. No extra slots in the chassis, or extra words in the image remain.
Because the specialty I/O mode chosen is discrete mode and the
1747-ASB module is configured for 1-slot addressing, all specialty modules that have two words or less of input and output image are discretely mapped.
The 1746-NIO4I module requires two input and two output words.
Therefore, it is discretely mapped. When 1-slot addressing is selected, two words of input image and two words of output image are available for each slot pair. Because it requires both words of the input and output image, slot 2 must remain empty. If an I/O module is inserted into slot 2, a 1747-ASB module error occurs.
Due to slot pairing, two 32-point modules that have opposite functions (one input and one output), are allowed in one slot pair using 1-slot addressing. The 32-point input module, Catalog Number
1746-IV32, installed in slot 3 uses the input image words assigned to slots 3 and 4. No input image is available for slot 4. Slot 4 can use the output image that slot 3 is not using. Therefore, a 32-point output module, Catalog Number 1746-OV32 uses the output image assigned to slots 3 and 4.
Slots 5 and 6 contain 16-point output modules. The input words assigned to these slots are not used.
SLC Processor Input Image
Bit Number (Decimal)
15
Logical
Rack 2
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
NIO4I
NIO4I
IV32
IV32
8 7
NIO4I
NIO4I
IV32
IV32
0
I:3.14
I:3.15
I:3.16
I:3.17
I:3.18
I:3.19
I:3.20
I:3.21
I:3.22
I:3.23
1747-ASB
Module 1
RediPANEL
SLC Processor Output Image
Bit Number (Decimal)
15
Logical
Rack 2
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
NIO4I
NIO4I
OV32
OV32
OB16
OA16
8 7
NIO4I
NIO4I
OV32
OV32
OB16
OA16
0
O:3.14
O:3.15
O:3.16
O:3.17
O:3.18
O:3.19
O:3.20
O:3.21
O:3.22
O:3.23
1747-ASB
Module 1
RediPANEL
1747-ASB Module 2 I/O Mapping Details
Because 1747-ASB module 2 is configured for 2-slot addressing, has two logical groups and three slots available for I/O, all of the slots present are mapped into the scanner image. One extra byte of input
Publication 1747-UM006B-EN-P - June 2003
Application Examples 8-13 and output image remain unassigned to any slot because there is no slot 4 in the chassis. Due to slot pairing, slot 3 can use the extra image space.
Because the specialty I/O mode chosen is discrete mode and the
1747-ASB module is configured for 2-slot addressing, all specialty modules having one word or less of input and output image are discretely mapped.
Slot 1 contains an 8-point output module, Catalog Number 1746-OA8, that uses the output image assigned to slot 1. The input image assigned to slot 1 is unused. Slot 2 contains a combination module,
Catalog Number 1746-IO12 that uses the input and output byte assigned to slot 2.
Because there is no slot 4, the image assigned to slot 4 can be used by slot 3. A 16-point input module, Catalog Number 1746-IA16 is installed in slot 3, using the input images assigned to slots 3 and 4. The output image for slots 3 and 4 is not used.
SLC Processor Input Image
Bit Number (Decimal)
Logical
Rack 0
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
15
IO12
IA16
8 7
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
IA16
0
I:3.0
I:3.1
I:3.2
I:3.3
I:3.4
I:3.5
I:3.6
I:3.7
I:3.8
1747-ASB
Module 2
SLC Processor Output Image
Bit Number (Decimal)
Logical
Rack 0
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
15
IO12
8 7
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
OA8
0
O:3.0
O:3.1
O:3.2
O:3.3
O:3.4
O:3.5
O:3.6
O:3.7
O:3.8
1747-ASB
Module 2
RIO Address Label Examples
Due to the 1747-ASB module's addressing modes and RIO link operation, the I/O modules controlled by the 1747-ASB module are addressed by the SLC processor based on the slot location of the SN and the word that the I/O module uses in the SN image. A label kit is included with each 1747-ASB module to assist you in addressing I/O modules.
Publication 1747-UM006B-EN-P - June 2003
8-14 Application Examples
Shown below are examples of how the labels are filled out.
RediPANEL
0 1 2 3
0 1 2 3 4 5 6
0 1 2 3
The meter is connected to output 1.
The switch is connected to input 17.
Bulb 2 is connected to output 12.
0 – 7
âś“
8 – 15
âś“
SN Slot
SN Word(s)
3
BT
14, 15
Discrete
âś“
0 – 7
âś“
SN Slot
SN Word(s)
3
BT
8 – 15
âś“
16, 17
Discrete
âś“
0 – 7
âś“
8 – 15
âś“
SN Slot
SN Word(s)
3
BT
19
Discrete
âś“
Remote SLC TM System
Remote SLC TM System
Bulb 1 is connected to output 4.
0 – 7
SN Slot
SN Word(s)
3
8 – 15
âś“
0
BT Discrete
âś“
TM
Remote SLC System
The 0–7 and 8–15 boxes are checked because the module requires more than one byte of image.
The SN Slot is 3 because that is the slot the scanner occupies in the local SLC chassis.
The SN Words are 14, 15 because they are the SN image words assigned to the NIO41. These values are determined by converting the module’s logical rack and logical group numbers (logical rack 1, G6,
G7) to the corresponding SN words.
The 0–7 and 8–15 boxes are checked because the module requires more than one byte of image. Bits 16 to 31 must be converted to bits 0 to 15 in the SN image, and the next word (word 17) used for the I/O reference.
(1)
The SN Slot is 3 because that is the slot the scanner occupies in the local SLC chassis.
The SN Words are 16, 17 because they are the SN image words assigned to the IV32. These values are determined by converting the module’s logical rack and logical group numbers (logical rack 2, GO,
G1) to the corresponding SN words.
The 0–7 and 8–15 boxes are checked because the module requires more than one byte of image.
The SN Slot is 3 because that is the slot the scanner occupies in the local SLC chassis.
The SN Word is 19 because sit is the SN image word assigned to the
OA16. The value is determined by converting the module’s logical rack and logical group numbers (logical rack 2, G3) to the corresponding SN word.
(1) Input bits 16 to 31 must be converted to 0 to 15 by subtracting 16. Therefore, Input Bit 17 is converted to 1.
The 8–15 box is checked because the module requires the most significant byte of image. Bits 0 to 7 must be converted to bits 8 to 15 in the SN image.
(2)
The SN Slot is 3 because that is the slot the scanner occupies in the local SLC chassis.
The SN Word is 0 because it is the
SN image word assigned to the
IO12. These values are determined by converting the module’s logical rack and logical group numbers
(logical rack 0, G0) to the corresponding SN word.
(2) Input and Output bits 0 to 7 must be converted to 8 to 15 by adding 8. Therefore, Input bit 4 is converted to 12.
Publication 1747-UM006B-EN-P - June 2003
Application Examples 8-15
Application Example Program
Shown below is an excerpt from the user program. When the switch is closed, bulbs 1 and 2 turn on and the decimal value 5555 is moved to analog output 1 and is converted to an analog signal.
Switch
(1)
I:3.17
] [
1
MOV
MOVE
Source
Dest
5555
O:3.15
Meter
Bulb 1
(2)
O:3.0
( )
12
O:3.19
( )
12
Bulb 2
(1) Input bits 16–31 must be converted to 0–15 by subtracting 16. Therefore, Input bit 17 is converted to 1.
(2) Input and Output bits 0–7 must be converted to 8–15 by adding 8. Therefore, Input bit 12 is converted to 4.
The following is another representation of what is discussed above.
This application consists of a PLC-5/40 processor controlling local and remote I/O.
RediPANEL
0 1 2 3
The meter is connected to output 1.
0 1 2 3 4 5 6
The switch is connected to input 17.
Bulb 2 is connected to output 12.
0 1 2 3
Bulb 1 is connected to output 4.
Publication 1747-UM006B-EN-P - June 2003
8-16 Application Examples
PLC-5 Example
The PLC-5/40 built-in scanner controls two 1747-ASB modules.
1747-ASB module 1 controls a 7-slot and 10-slot chassis. The I/O modules residing in those chassis are:
•
1746-NIO4V, analog module (2 current or voltage inputs and 2 voltage outputs)
•
1746-OW8, 8-point AC/DC Relay output module
•
1746-OW16, 16-point AC/DC Relay output module
•
1746-IA16, 16-point AC input module
•
1746-OG16, 16-point TTL output module
•
1746-IG16, 16-point TTL input module
•
1746-OW8, 8-point AC/DC Relay output module
•
1746-OV8, 8-point DC sinking output module
•
1746-OB16, 16-point DC sourcing output module
•
1746-IB16, 16-point DC sinking input module
•
1746-OA8, 8-point AC output module
•
1746-NO4V, analog module (4 voltage outputs)
•
1746-OW16, 16-point AC/DC Relay output module
•
1746-IA16, 16-point AC input module
•
1746-OV16, 16-point DC sinking output module
•
1746-IV16, 16-point DC sourcing input module
1747-ASB module 2 controls a 4-slot chassis. The I/O modules residing in the SLC chassis are:
•
1746-NI4, analog module (4 current inputs)
•
1746-NO4I, analog module (4 current outputs)
•
1746-NIO4I, analog module (2 current or voltage inputs and 2 current outputs)
The application is illustrated on the following page. When the switch is closed, the bulb turns on. An analog signal is sent from the
1746-NIO4I module to meter 1 and a voltage signal is sent from the
1746-NO4V module to meter 2.
For more information regarding the PLC-5/40 processor, refer to the installation manual.
Publication 1747-UM006B-EN-P - June 2003
Application Examples 8-17
PLC-5/40
0 1 2 3 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 0 1 2 3
The switch is connected to input 12.
The bulb is connected to output 5.
Meter 2 is connected to output 2.
Meter 1 is connected to output 0.
IMPORTANT
All bit numbers in this example are in octal. The
1746 16- and 32-point modules must have their LED numbers and wiring terminal numbers labeled in octal. All Series C or later modules include an octal conversion kit which allows you to convert from decimal to octal. This kit is also available as a replacement part through your Rockwell Automation distributor.
RIO Device Configuration
The 1747-ASB modules are configured in the following manner.
Function
Starting logical rack number
Starting logical group number
1747-ASB Module 1 1747-ASB Module 2
1
6
3
0
Image size (number of logical groups) 8
Addressing mode 2-slot
Specialty I/O mode
Baud rate
Block transfer
57.6K
(1)
6
1/2-slot
Discrete
Last chassis
Hold last state
Processor restart lockout
Link response
Primary/complementary chassis
Yes
Yes
Yes
Unrestricted
Complementary
57.6K
Yes
No
No
Unrestricted
Complementary
(1) When block transfer mode is selected, all specialty I/O modules are block transfer mapped. Their data is exchanged on the RIO link using RIO block transfers.
The 1771 chassis is configured for 1-slot addressing. The PLC-5/40 is configured for scanner mode operation at 57.6K baud.
Publication 1747-UM006B-EN-P - June 2003
8-18 Application Examples
PLC Processor Image
Because the 4-slot local chassis is configured for 1-slot addressing, the first four logical groups of logical rack 0 are used for local I/O, the remaining four groups are not used.
Logical racks 1, 2, and 3 are available for remote I/O because they are not used by the local chassis.
PLC Processor Input Image
Bit Number Octal
17 10 7 0
Logical
Rack 0
Logical
Rack 1
Logical
Rack 2
Logical
Rack 3
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
IA16
IG16
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
NIO4V
IA16
IG16
IB16
NO4V
IA16
IV16
Not Used
Not Used
NI4
NI4
NI4
NI4
NIO4I
NIO4I
Not Used
Not Used
IB16
IA16
IV16
NI4
NI4
NI4
NI4
NIO4I
NIO4I
I:023
I:024
I:025
I:026
I:027
I:030
I:031
I:032
I:033
I:034
I:035
I:036
I:037
I:016
I:017
I:020
I:021
I:022
I:01 1
I:012
I:013
I:014
I:015
I:000
I:001
I:002
I:003
I:004
I:005
I:006
I:007
I:010
Local I/O
1747-ASB
Module 1
1747-ASB
Module 2
PLC Processor Output Image
Bit Number Octal
17 10 7 0
Logical
Rack 0
Logical
Rack 1
Logical
Rack 2
Logical
Rack 3
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
OW8
OW16
OG16
OV8
OB16
NO4V
OW16
OV16
NO4I
NO4I
NO4I
NO4I
NIO4I
NIO4I
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
NIO4V
OW16
OG16
OW8
OB16
OA8
OW16
OV16
NO4I
NO4I
NO4I
NO4I
NIO4I
NIO4I
Not Used
Not Used
O:023
O:024
O:025
O:026
O:027
O:030
O:031
O:032
O:033
O:034
O:035
O:036
O:037
O:01 1
O:012
O:013
O:014
O:015
O:016
O:017
O:020
O:021
O:022
O:000
O:001
O:002
O:003
O:004
O:005
O:006
O:007
O:010
Local I/O
1747-ASB
Module 1
1747-ASB
Module 2
Publication 1747-UM006B-EN-P - June 2003
Application Examples 8-19
1747-ASB Module 1 Configuration Details
Because the image of the 1747-ASB module 1 crosses logical rack boundary 1 and 2, 1747-ASB module 1 appears as two logical devices to the RIO scanner.
PLC Processor Input Image
Bit Number Octal
17 10 7 0
Logical
Rack 1
Logical
Rack 2
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
IA16
IG16
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
NIO4V
IA16
IG16
IB16
NO4V
IA16
IV16
Not Used
Not Used
IB16
IA16
IV16
I:020
I:021
I:022
I:023
I:024
I:025
I:026
I:027
I:010
I:01 1
I:012
I:013
I:014
I:015
I:016
I:017
1747-ASB
Module 1
PLC Processor Output Image
Bit Number Octal
17 10 7 0
Logical
Rack 1
Logical
Rack 2
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
OW8
OW16
OG16
OV8
OB16
NO4V
OW16
OV16
Not Used
Not Used
NIO4V
OW16
OG16
OW8
OB16
OA8
OW16
OV16
O:020
O:021
O:022
O:023
O:024
O:025
O:026
O:027
O:010
O:01 1
O:012
O:013
O:014
O:015
O:016
O:017
1747-ASB
Module 1
1747-ASB module 1 is configured for last chassis because it has the highest numbered logical group (group 5) in its highest numbered logical rack (logical rack 2).
1747-ASB module 1 is configured for hold last state and processor restart lockout. If the RIO communications cable is removed and reconnected during normal RIO communications, the discrete outputs remain in their last state and the 1747-ASB module does not resume communicating with the scanner until the processor restart lockout terminals are momentarily shorted together. For more information regarding processor restart lockout, refer to chapter 4.
1747-ASB module 1 is configured as a complementary chassis.
Because complementary I/O is not being used, there is no need for a primary chassis.
The 1747-ASB module 1 response time is unrestricted because the
PLC-5/40 does not require a restricted response time.
IMPORTANT
Selecting processor restart lockout disables PLC auto configurations on the 1747-ASB module except for initial powerup. If processor restart lockout is not selected, you are able to perform PLC auto configurations on the 1747-ASB module.
Publication 1747-UM006B-EN-P - June 2003
8-20 Application Examples
1747-ASB Module 2 Configuration Details
Because the image of 1747-ASB module 2 does not cross a logical rack boundary, 1747-ASB module 2 appears as one logical device to the scanner.
PLC Processor Input Image
Bit Number Octal
17 10 7 0
Logical
Rack 3
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
NI4
NI4
NI4
NI4
NIO4I
NIO4I
Not Used
Not Used
NI4
NI4
NI4
NI4
NIO4I
NIO4I
I:030
I:031
I:032
I:033
I:034
I:035
I:036
I:037
1747-ASB
Module 2
PLC Processor Output Image
Bit Number Octal
17 10 7 0
Logical
Rack 3
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
NO4I
NO4I
NO4I
NO4I
NIO4I
NIO4I
Not Used
Not Used
NO4I
NO4I
NO4I
NO4I
NIO4I
NIO4I
O:030
O:031
O:032
O:033
O:034
O:035
O:036
O:037
1747-ASB
Module 2
1747-ASB module 2 is configured for last chassis because it has the highest logical group (group 5) in its highest numbered logical rack
(logical rack 3).
1747-ASB module 2 is not configured for hold last state and processor restart lockout. If the RIO communications cable is removed and reconnected during normal RIO communications, the discrete outputs are reset and the 1747-ASB module automatically resumes communicating with the PLC-5/40.
1747-ASB module 2 is configured as a complementary chassis.
Because complementary I/O is not being used, there is no need for a primary chassis.
The 1747-ASB module 2 response time is unrestricted because the
PLC-5/40 does not require a restricted response time.
Publication 1747-UM006B-EN-P - June 2003
Application Examples 8-21
1747-ASB Module 1 I/O Mapping Details
Because 1747-ASB module 1 is configured for 2-slot addressing, has eight logical groups and 16 I/O slots available, all of the slots present are mapped into the PLC-5/40 image. No extra slots in the chassis or extra words in the image remain. Each slot is assigned one byte in the
PLC-5/40 input and output images.
1747-ASB module 1 is configured for block transfer specialty I/O mode. Therefore, all specialty I/O modules are block transfer mapped.
If specialty I/O modules are used, their paired slots can only use
8-point (or smaller) discrete input, discrete output, or block transfer mapped specialty modules, as shown below. 16-point discrete output modules can be used if their paired slots have discrete (16-point or less) input modules in them, as shown below. 32-point modules cannot be used with 2-slot addressing.
0 1 2 3 4 5 6
Slot Pair
1 2 3
7 8 9 10 11 12 13 14 15 16
4 5 6 7 8
PLC Processor Input Image
Bit Number Octal
17 10 7 0
Logical
Rack 1
Logical
Rack 2
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
NIO4V
IA16
IG16
IA16
IG16
IB16
NO4V
IA16
IV16
Not Used
Not Used
IB16
IA16
IV16
I:027
I:017
I:020
I:021
I:022
I:023
I:024
I:025
I:026
I:010
I:01 1
I:012
I:013
I:014
I:015
I:016
1747-ASB
Module 1
PLC Processor Output Image
Bit Number Octal
17 10 7 0
Logical
Rack 1
Logical
Rack 2
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
OW8
OW16
OG16
OV8
OB16
NO4V
OW16
OV16
Not Used
Not Used
NIO4V
OW16
OG16
OW8
OB16
OA8
OW16
OV16
O:017
O:020
O:021
O:022
O:023
O:024
O:025
O:026
O:027
O:010
O:01 1
O:012
O:013
O:014
O:015
O:016
1747-ASB
Module 1
Publication 1747-UM006B-EN-P - June 2003
8-22 Application Examples
1747-ASB Module 2 I/O Mapping Details
Because 1747-ASB module 2 is configured for 1/2-slot addressing, has six logical groups and three slots available for I/O, all of the slots present are mapped into the PLC-5/40 image. Since slot three cannot be paired with slot four and only two words of image are available, slot three has the two words assigned to it.
1747-ASB module 2 is configured for discrete mode operation.
Therefore, all speciality modules that have four or less words of input and output image are discretely mapped, while all specialty modules that have more than four words of input image or output image are block transfer mapped.
Due to slot pairing, a discretely mapped four word analog input and output module are allowed in one slot pair. The 1746-NI4 module in slot one uses the four input words assigned to slots one and two. As a result, slot two cannot use any input image. Conversely, it can use the four output image words assigned to slots one and two which then allows the 1746-NO4I output module to be installed in slot two.
Because slot three has two input and output words assigned to it and the 1746-NIO4I module in slot three requires two input and output words, the 1746-NIO4I module can be installed in slot three. If a four word input or output module is installed in slot three, a 1747-ASB module error occurs because only half of the module's image can be mapped.
PLC Processor Input Image
Bit Number Octal
17 10 7 0
Logical
Rack 3
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
NI4
NI4
NI4
NI4
NIO4I
NIO4I
NI4
NI4
NI4
NI4
NIO4I
NIO4I
I:030
I:031
I:032
I:033
I:034
I:035
1747-ASB
Module 2
PLC Processor Output Image
Bit Number Octal
17 10 7 0
Logical
Rack 3
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
NO4I
NO4I
NO4I
NO4I
NIO4I
NIO4I
NO4I
NO4I
NO4I
NO4I
NIO4I
NIO4I
O:030
O:031
O:032
O:033
O:034
O:035
1747-ASB
Module 2
0 1 2 3
Publication 1747-UM006B-EN-P - June 2003
Application Examples 8-23
RIO Address Label Examples
Due to the 1747-ASB module's addressing modes and RIO link operation, the I/O modules controlled by the 1747-ASB module are addressed by the PLC processor on a logical rack, logical group basis.
A label kit is included with each 1747-ASB module to assist you in assigning the logical rack and logical group designation for each I/O module. Refer to chapter 6 for more information regarding these labels.
Shown below are examples of how the labels are filled out.
PLC-5/40
0 1 2 3 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 0 1 2 3
The switch is connected to input 12.
0 – 7
I:
âś“
Rack
1
10 – 17
Group(s)
G7
O:
BT Discrete
Remote PLC System
âś“
âś“
The 0–7 and 10–17 boxes are checked because the module requires more than one byte of image.
The module resides in the PLC-5/40,
Input image (I:), logical rack 1, logical group 7.
The discrete box is checked because the module’s image is discretely mapped in the
PLC-5/40 image.
The bulb is connected to output 5.
0 – 7
Rack
10 – 17
Group(s)
âś“
I:
O:
BT
2
Discrete
G1
âś“
Remote PLC System
The 10 –17 box is checked because this module requires the high byte of the
PLC-5/40 image. 0 to 7 must be converted to
10 to 17 to correspond with the PLC-5/40 image.
The module resides in the PLC, Output image (O:), logical rack 2, logical group 1.
The discrete box is checked because the module’s image is discretely mapped in the PLC-5/40 image.
Meter 2 is connected to output 2.
0 – 7
Rack
2
10 – 17
Group(s)
âś“
G3
I:
O:
BT
âś“
2
Discrete
G3
Remote PLC System
The 10 –17 box is checked because this module requires the high byte of the
PLC-5/40 image.
The module resides in the PLC, output image (O:), input image (I:), logical rack 2, logical group 3.
The block transfer box is checked because the module’s image is block transfer mapped into the
PLC-5/40 image.
0 – 7
I:
Rack
3
10 – 17
Group(s)
G0–G3
O:
BT Discrete
Remote PLC System
âś“
The 0 –7 and 10–17 boxes are not checked because only words are considered when this module is mapped discretely. The NI4 has four words that are discretely mapped into
PLC-5/40 image.
The module resides in the PLC-5/40,
Input image (I:), logical rack 3, logical groups 0, 1, 2, and 3.
The discrete box is checked because the module’s image is discretely mapped in the PLC-5/40 image.
Meter 1 is connected to output 0.
0 – 7
I:
Rack
3
O:
BT
10 – 17
Group(s)
G4,G5
3
G4,G5
Discrete
âś“
Remote PLC System
The 0 –7 and 10–17 boxes are not checked because only words are considered when this module is mapped discretely. The NIO4I has two input and two output words that are discretely mapped into
PLC-5/40 image.
The module resides in the PLC-5/40, Input (I:) and Output image (O:), logical rack 3, logical groups 4 and 5.
The discrete box is checked because the module’s image is discretely mapped in the PLC-5/40 image.
Publication 1747-UM006B-EN-P - June 2003
8-24 Application Examples
Application Example Program
Shown below is an excerpt from the user program. When the switch is closed, the bulb illuminates, decimal value 5555 is moved to the
1746-NO4V output 2 (connected to meter 2) and to the 1746-NIO4I output 0 (connected to meter 1).
The inputs to the 1746-IA16 module are in octal. The switch is wired to input 12 (octal) and its value is represented by bit 12 (octal) in the process image. Make sure that the octal label kit 15 and 32-point modules are used to convert their LED filters and wiring labels to octal, for use with the PLC5.
The 1746-NO4V module is block transfer mapped. To write a value to the module, the data must first be written to the appropriate word in N10:0 to N10:3. This integer file was chosen as the block transfer data file for the NO4V. N10:2 corresponds to output 2. The user program must be enable the block transfer to the NO4V using a block transfer instruction. The data is not transferred until the next RIO block transfer for this module occurs.
Switch
Meter 2
Meter 1
The 1746-NIO4O module is discretely mapped. To write a value to the NIO4I outputs, the value is written to the processor output image (word O:34 corresponds to output 0 and word O:035 corresponds to output 1). The data is automatically sent to the processor on the next RIO discrete transfer.
The 1746-OV8 module output is in octal. It has been adjusted because it resides in the high byte of the processor image. The bulb is wired to output 5 that corresponds to bit 40 (octal) of the processor image.
Bulb
Meter 2 Block
Transfer Instruction
I:017
] [
12
MOV
MOVE
Source
Dest
MOV
MOVE
Source
Dest
5555
N10:2
5555
O:034
O:021
( )
15
BTW
BLOCK TRNSFR WRITE
Rack
Group
Module
Control Block
Data File
N7:0
N10:0
2
3
1
Length
Continuous
4
Y
The following is another representation of what is discussed above.
PLC-5/40
0 1 2 3
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
The switch is connected to input 12.
The bulb is connected to output 5.
Publication 1747-UM006B-EN-P - June 2003
Meter 2 is connected to output 2.
0 1 2 3
Meter 1 is connected to output 0.
1
Appendix
A
Specifications
This appendix provides adapter and system specifications, as well as throughput information. Topics include:
• adapter operating specifications
• network specifications
• throughput introduction
• calculating throughput
Adapter Operating Specifications
Backplane Current Consumption
Operating Temperature
Storage Temperature
Humidity
Noise Immunity
Agency Certification
(when product or packaging is marked)
375mA at 5V
32° F to 140° F
(0° C to 60° C)
-40° F to +185° F
(-40° C to +85° C)
5% to 95% noncondensing
NEMA standard ICS 2-230
•
CSA certified
•
CSA Class I, Division 2
Groups A, B, C, D certified
•
UL listed
•
CE marked for all applicable directives
•
C-Tick marked for all applicable acts
Publication 1747-UM006B-EN-P - June 2003
A-2 Specifications
Publication 1747-UM006B-EN-P - June 2003
Network Specifications
Baud Rate Determination of Maximum Cable Length and Terminating
Resistor.
Table 8.1 Baud Rate Determination of Maximum Cable Length and Terminating
Resistor Size
Baud Rate Resistor Size
Using Extended
Node Capability
Not Using
Extended Node
Capability
Maximum Cable Distance
(Belden 9463)
57.6K baud 3048 meters (10,000 feet)
115.2K baud 1524 meters (5,000 feet)
230.4K baud 762 meters (2,500 feet)
57.6K baud 3048 meters (10,000 feet)
115.2K baud 1524 meters (5,000 feet)
230.4K baud 762 meters (2,500 feet)
82
150
82
Ω
Ω
1/2 Watt
Ω
1/2 Watt
1/2 Watt
Throughput is the time between when a control system senses an input event on an I/O module in a 1747-ASB chassis to when an output event occurs on an I/O module within the same 1747-ASB chassis. There are three types of 1747-ASB module throughput:
Troughput Production
• discrete throughput (time from discretely mapped input to discretely mapped output) without block transfers present
• discrete throughput (time from discretely mapped input to discretely mapped output) with block transfers present
• block transfer throughput (time from block transfer mapped input to block transfer mapped output)
Discrete Throughput Overview
The 1747-ASB module system discrete throughput is comprised of:
• the total PLC or SLC processor scan time
• the total RIO link scan time
•
1747-ASB module backplane scan time
• the scanner module output delay time (only if scanner is a separate module from the processor, otherwise value is 0)
• the scanner module input delay time (only if scanner is a separate module from the processor, otherwise value is 0)
• the input module delay time
• the output module delay time
Specifications A-3
In the following example, the input event occurs at a discretely mapped I/O module. The input image of I/O module is read by the
1747-ASB module during a 1747-ASB module backplane scan. The input data is placed into a buffer, which is next read by the scanner during a discrete scan of the RIO link. Once the input data is read by the scanner, it is sent to and read by the PLC or SLC processor.
The response or output data travels back across the RIO link to the
1747-ASB module during a discrete scan. The 1747-ASB module writes the output data to a discretely mapped output module during a
1747-ASB module backplane scan. The output data exits the chassis via the I/O module in order to control the field device.
Scanner
Processor
Processor Scan
Scanner Scan
RIO Scan
SLC Local Chassis
Outputs to Modules
Inputs from Modules
ASB Module I/O Module
ASB Backplane Scan
I/O Module
Remote Chassis
Inputs to Modules
Remote Expansion Chassis
Outputs from Modules
Output Device
Input Device
Processor Scan
Processor/Scanner
ASB Module I/O Module
ASB Backplane Scan
I/O Module
RIO Scan
PLC Local Chassis
Outputs to Modules
Inputs from Modules
Remote Chassis
Inputs to Modules
Remote Expansion Chassis
Outputs from Modules
Output Device
Input Device
Publication 1747-UM006B-EN-P - June 2003
A-4 Specifications
Calculating Throughput
The 1747-ASB module throughput is determined by more than the
1747-ASB module itself. The input and output module delays, scanner scan time, and processor scan time contribute to throughput as well.
Discrete I/O Throughput without Block Transfers Present
The information in this section is used to calculate the discrete throughput of the 1747-ASB module if both conditions are true:
•
There are no block transfer mapped I/O modules in the
1747-ASB chassis.
•
There are no RIO block transfers occurring on the RIO link to any chassis.
If RIO block transfers are present on the RIO link or if the 1747-ASB chassis has block transfer mapped I/O modules, you must use the
Discrete I/O Throughput with Block Transfers Present section.
The formula to calculate the maximum 1747-ASB module discrete I/O throughput without block transfers present is:
T dm-nbt
= 2T ps
+ 2T
RIO
+ 2T bp
+ T
SNo
+ T
SNi
+ T id
+ T od
+ 10ms
(1)
T dm-nbt
= The maximum 1747-ASB module discrete throughput without block transfers in milliseconds (ms)
To calculate throughput, substitute values for the variables in the formula above. Locate these values in the following documents:
Variable Variable Description
T ps
T
SNi
The total processor scan time (ms)
The scanner module input delay time (ms)
(only if scanner is a separate module, otherwise value is 0)
T
SNo
T id
The scanner module output delay time (ms)
(only if scanner is a separate module, otherwise value is 0)
The input delay time (ms)
T
T od
RIO
T bp
Location of Variable
PLC or SLC programming manual scanner user manual scanner user manual
The output delay time (ms)
The total RIO scan time (ms)
SLC I/O technical data and I/O instruction sheets
SLC I/O technical data and I/O installation instructions
1747-ASB module backplane scan time (ms)
(1) The value of 10ms is for PLC-5/11, -5/20, -5/30, -5/40, and -5/60 processors only. For all other processors the value is not used.
Publication 1747-UM006B-EN-P - June 2003
Specifications A-5
RIO Scan Time Calculation (T
RIO
)
The RIO scan time is calculated by identifying the baud rate and image size of each logical device on the RIO link. Locate the corresponding time value in the following table. If you are using multiple logical devices, add the time values together to determine the total RIO scan time (T
RIO)
.
T
RIO
= T adapter 1
+ T adapter 2
+ T adapter 3
Table 8.2 RIO Scan Times for Adapters
(1)
Adapter Size
1/4 logical rack
3/4 logical rack
Full logical rack
57.6K
6.0ms
7.5ms
9.5ms
Baud Rate
115.2K
3.5ms
4.5ms
5.5ms
230.4K
2.5ms
3.0ms
3.5ms
(1) The table shown above is based on PLC-5 processors. If another type of processor is used, refer to its user manual for T
RIO
.
Publication 1747-UM006B-EN-P - June 2003
A-6 Specifications
Publication 1747-UM006B-EN-P - June 2003
1747-ASB Module Backplane Scan Time (T
bp
)
The 1747-ASB module backplane scan time is determined by the type of I/O modules in the 1747-ASB chassis and the baud rate. To calculate the 1747-ASB module backplane scan time (T bp
), first add the I/O module scan times together to determine the base backplane scan time (T b
):
T b
(T base backplane scan time
)
(1)
= T
I/O module 1
+ T
I/O module 2
Locate the appropriate I/O module scan times in the following table:
Backplane Scan Times (T b
)
I/O Module
4-point input
8-point input
16-point input
32 point input
2 word specialty input
4 word specialty input
6 word specialty input
8 word specialty input
4-point output
8-point output
16-point output
32-point output
2-word specialty output
4-word specialty output
6-word specialty output
8-word specialty output
4-, 6-, and 12-point combination
2.048
0.170
0.170
0.273
0.470
0.620
1.028
1.440
1.745
0.380
Scan Time (ms)
0.210
0.210
0.325
0.560
0.625
1.100
1.575
Now substitute the base backplane scan time (T b
) into the appropriate equation, based on your baud rate, to solve for the 1747-ASB module backplane scan time (T bp
):
Baud Rate
57.6K baud
115.2K baud
230.4K baud
1747-ASB Module Backplane Scan Time (T bp
)
1.15T
b
+ 1.38
1.32T
b
+ 1.58
1.67T
b
+ 2.00
(1) Only modules mapped to the 1747-ASB image; unmapped modules are not scanned.
Specifications A-7
Discrete I/O Throughput without Block Transfers Present Example
A PLC 5/40 is controlling an RIO link running at 115.2K baud that has the following adapters:
•
One 1747-ASB module configured as 1/2 logical rack with 1-slot addressing and discrete specialty I/O mode
– slot 1 - 1746-IB16, 16-point input module
– slot 2 - 1746-OB16, 16-point output module
– slot 3 - 1746-NIO4I, 2 input/ 2 output analog module
•
Two adapters, each configured as a full logical rack
•
Three adapters, each configured as a 1/4 logical rack
1. Use the throughput formula to calculate the maximum throughput.
T dm-nbt
= 2T ps
+ 2T
RIO
+ 2T bp
+ T
SNo
+ T
SNi
+ T id
+ T od
+ 10ms
(1)
T dm-nbt
= The maximum 1747-ASB module discrete throughput without block transfers in milliseconds (ms)
T ps
= 25.0 ms, which is from the PLC 5/40 programming manual
T
RIO
= The total RIO scan time (ms)
T bp
= 1747-ASB module backplane scan time (ms)
T
SNo
= 0 since you are using a PLC processor with a built in scanner
T
SNi
= 0 since you are using a PLC processor with a built in scanner
T id
= 10.0 ms, which is from I/O module instruction sheets
T od
= 1.0 ms, which is from I/O module instruction sheets
T dm-nbt
= 2(25) + 2T
RIO
+ 2T bp
+ 0 + 0 + 10.0 + 1.0
+ 10ms
(1)
2. Since there are two unknown values, continue with steps three through seven on the following page.
3. Calculate the 1747-ASB module backplane scan time (T bp
).
Determine the backplane scan time for each module in slots one, two, and three.
slot 1 - 1747-IB16, 16-point input module = 0.325ms
slot 2 - 1747-OB16, 16-point output module = 0.273ms
slot 3 - 1746-NIO4I, 2 input/ 2 output analog module = input =
0.625ms output = .620ms
(2)
(1) The value of 10 ms is for PLC-5/11, -5/20, -5/30, -5/40, and -5/60 processors only. For all other PLC-5 processors the value is not required.
(2) Since the 1746-NIO4I has both input and output image, each amount is needed to calculate base backplane scan time (T b
).
Publication 1747-UM006B-EN-P - June 2003
A-8 Specifications
These values are listed in the Backplane Scan Time table on page A-6.
4. Add the backplane scan times together for each module in slots one, two, and three.
T base backplane scan time
(T b
) = T
I/O module 1
+ T
I/O module 2
+
T
I/O module 3
T b
= 0.325ms + 0.273ms + 0.625ms + 0.620ms
T b
= 1.843ms
5. Use the appropriate Total Backplane Scan Time formula found on page A-6 to calculate the total backplane scan time.
T bp
= 1.32T
b
+ 1.58
T bp
= 1.32(1.843ms) + 1.58
T bp
= 4.01ms
6. Calculate the total RIO scan time (T
RIO
). Locate the baud rate
(115.2K) and adapter size which is found in the table on page
A-5. Multiply the RIO scan times listed under the 115.2K heading by the number of each different type of rack that you have. Add those numbers together:
T
RIO
= T adapter 1
+ T adapter 2
+ T adapter 3
T
RIO
= 1(4.0ms) + 2(5.0ms) + 3(3.5ms)
T
RIO
= 24.5ms
7. Substitute all the values for variables in the throughput formula and solve for throughput:
T dm-nbt
= 2T ps
+ 2T
RIO
+ 2T bp
+ T
SNo
+ T
SNi
+ T id
+ T od
+ 10ms
(1)
T dm-nbt
= 2(25)+ 2(24.5) + 2(4.01) + 0 + 0 + 10.0 + 1.0 + 10
T dm-nbt
= 128.02 ms = maximum throughput
Publication 1747-UM006B-EN-P - June 2003
(1) The value of 10 ms is for PLC-5/11, -5/20, -5/30, -5/40, and -5/60 processors only. For all other PLC-5 processors the value is not required.
Specifications A-9
Discrete I/O Throughput with Block Transfers Present
The information in this section is used to calculate the discrete throughput of the 1747-ASB module if either of the following conditions are true:
•
There are block transfer mapped I/O modules in the 1747-ASB chassis.
•
There are RIO block transfers occurring on the RIO link to any chassis.
If RIO block transfers not are present on the RIO link or if the
1747-ASB chassis has no block transfer mapped I/O modules, you
must use the Discrete I/O Throughput without Block Transfers Present section.
To calculate discrete I/O throughput with block transfers present, use the following formula:
T dm-bt
= T dm-nbt
+ 2T btx
T dm-bt
= The maximum 1747-ASB module discrete throughput with block transfers in milliseconds (ms)
T dm-nbt
= The maximum 1747-ASB module discrete throughput without block transfers in milliseconds (ms)
T btx
= Additional time due to sending any RIO block transfer data on the RIO link
IMPORTANT
You will need to use the backplane scan times located in the top table on page A-6. You must include the time necessary to scan all the words of all the I/O modules in the 1747-ASB chassis, including the block transfer mapped I/O modules.
For example, if a 1746-BAS module is used, (T b
)
must include the time needed to scan 8 input and 8 output words even though the 1746-BAS module consumes only 2 bytes in the 1747-ASB image.
Before determining (T btx
), you need to establish the maximum block transfer write or read length that is to be processed by each logical device on the RIO link including the 1747-ASB module.
RIO scan time is increased each time an RIO block transfer is sent to any logical device on the RIO network even if it is not sent to the
1747-ASB module. The scan time increase depends on the number of
Publication 1747-UM006B-EN-P - June 2003
A-10 Specifications
Publication 1747-UM006B-EN-P - June 2003 words sent in the block transfer and the selected baud rate. RIO link protocol allows for a maximum of one RIO block transfer to be sent to each logical device on the RIO link during any single RIO scan. The
RIO scan increase (T ri
) for each logical device is:
Baud Rate
57.6K baud
115.2K baud
230.4K baud
RIO Scan Time Increase (T ri
)
0.300 x block transfer length + 5.0ms
0.150 x block transfer length + 3.5ms
0.075 x block transfer length + 2.0ms
The total increase in the RIO scan time (T btx
) is equal to:
T btx
= sum of T ri
for all logical devices
Discrete I/O Throughput with Block Transfers Present Example
A PLC 5/40 is controlling a 115.2K baud RIO link that has 3 adapters and 4 logical devices.
1747-ASB module:
• starting logical rack 0, logical group 0
•
12 logical groups (1 1/2 logical racks)
• one 8 word and two 4 word block transfer write/read modules in logical rack 0
• one 2 word block transfer write/read module in logical rack 1
1771-ASB module:
• starting logical rack 2, logical group 0
•
2 logical groups (1/4 logical racks)
• one 64 word block transfer write/read module
1771-ASB module
• starting logical rack 2, logical group 2
•
2 logical groups (1/4 logical racks)
• one 64 word block transfer write/read module
Specifications A-11
1. T dm-nbt
equals 80ms
(1)
for a specific pair of discretely mapped input and output modules. The maximum throughput for these discretely mapped I/O modules when block transfers are present are:
T dm-bt
= T dm-nbt
+ 2T btx
T dm-bt
= 80ms + 2T btx
2. Determine the maximum length of the block transfer to each logical device. There are two logical devices for the 1747-ASB module. The largest block transfer that is possible with the full logical rack, logical device is 8 words. The largest block transfer that is possible with the 1/2 logical rack, logical device is 2 words.
3. Substitute the maximum length of each logical device into:
T ri
= 0.150 x block transfer length + 3.5ms
T ri
= (0.150 x 8 ) + 3.5ms
T ri1
= 4.7ms
T ri
= (0.150 x 2 ) + 3.5ms
T ri2
= 3.8ms
4. There is one logical device for each 1771-ASB module. The largest block transfer for 1/4 logical racks is 64 words. Calculate the maximum length for these logical devices:
T ri
= 0.150 x block transfer length + 3.5ms
T ri
= (0.150 x 64 ) + 3.5ms
T ri3 & 4
= 13.1ms
5. Add up all of the maximum word lengths:
T btx
= T ri1
+T ri2
+ T ri3
+ T ri
4
T btx
= 4.7+ 3.8
+ 13.1 + 13.1
T btx
= 34.7ms
(1) This number is arbitrarily assigned.
Publication 1747-UM006B-EN-P - June 2003
A-12 Specifications
6. Substitute all the values for variables in the throughput formula and solve for throughput:
T dm-bt
= T dm-nbt
+ 2T btx
T dm-bt
= 80ms + 2(34.7)ms
T dm-bt
= 149.4ms
Block Transfer Throughput
Block transfer throughput is always slower than discrete data transfer.
It is dependent on the time involved for the:
•
PLC control program to enable the block transfer
(1)
•
PLC to generate a request for a block transfer
•
1747-ASB module to acknowledge the request
(2)
•
PLC to initiate the block transfer
• time involved to block transfer the data
(3)
•
1747-ASB backplane scan
(4)
As noted above, block transfer timing is PLC dependent. To calculate block transfer throughput, refer to the applicable PLC programming document.
Publication 1747-UM006B-EN-P - June 2003
(1) This is dependent on the PLC processor and scanner.
(2) Once the block transfer is request is received, the acknowledgement occurs in no more than one backplane scan and two RIO scans.
(3) The time involved to block transfer data is calculated using the T ri formula in the previous section.
(4) The 1747-ASB backplane scan time is calculated in the same manner as described in the discrete throughput sections.
1
Appendix
B
Differences Between the 1747-ASB Module and the 1771-ASB Series C Module
Image Size Selection
(page 4-10)
This appendix examines the differences between Catalog Number
1747-ASB and Catalog Number 1771-ASB Series C, Revision E or later.
These differences are:
• image size selection
• hold last state operation
• specialty I/O module mapping and control
• remote expansion chassis
• starting logical group number selection
• inserting and removing I/O modules under power
•
DIP switch locations
•
I/O module keying
• physical slot numbering
• status indication
• throughput performance
• inhibit functionality
Page and chapter references are provided within each heading so you can quickly review the information specific to Catalog Number
1747-ASB.
The 1771-ASB image size is automatically selected based on the chassis size and addressing mode. The automatic assignment is possible because the number of 1771 chassis physical slots are provided in 2-group multiples. Therefore, there are no unused physical I/O slots or scanner image that is not utilized.
The 1747-ASB image size must be selected with DIP switches
(SW2-5,6,7,8). The selection is necessary because the 1746 chassis are not provided in 2-group multiples. In some cases, you must make a choice between not using a slot or not using scanner image. For more information on odd size chassis and image conditions, refer to page
Publication 1747-UM006B-EN-P - June 2003
B-2 Differences Between the 1747-ASB Module and the 1771-ASB Series C Module
Hold Last State Operation
(page 4-15)
When the hold last state mode is selected, the 1771-ASB module holds discrete outputs in their last state if:
• an error occurs
•
RIO communications are lost
• the 1771-ASB module is inhibited
• the 1771-ASB module receives reset, adapter decide commands from the scanner
When the hold last state mode is selected the 1747-ASB module holds discrete outputs in their last state if:
•
RIO communications are lost
• the 1747-ASB module is inhibited
• the 1771-ASB module receives reset, adapter decide commands from the scanner
The 1747-ASB module always clears discrete outputs if:
• an I/O module fault occurs
• a 1747-ASB error occurs
• a remote expansion chassis loses power
ATTENTION
!
When the discrete outputs are being held in their last state by the 1747-ASB module, the following information concerning the specialty modules must be considered:
The specialty I/O modules operate as if they are being controlled by an SLC processor in the run mode. Refer to the specialty I/O module's user manual to determine the response to this condition.
The specialty I/O modules inputs are read by the
ASB module. However, the specialty I/O module's outputs are not modified by the ASB module.
Remote Expansion Chassis
(page 3-1)
The 1771-ASB module does not support expansion chassis. It allows up to 16 physical slots in one 1771 chassis.
The 1747-ASB module can control up to three chassis; a remote chassis and two remote expansion chassis. If power to any remote expansion chassis is lost, a 1747-ASB error occurs and all discrete outputs are cleared, regardless of the hold last state switch setting.
When power to the remote expansion chassis is restored, the ASB module automatically resumes operation as if the ASB module's power was cycled.
Publication 1747-UM006B-EN-P - June 2003
Differences Between the 1747-ASB Module and the 1771-ASB Series C Module B-3
Inserting and Removing I/O
Modules Under Power
(page 6-9)
ATTENTION
!
Disconnect power to the 1771- or 1747-ASB chassis before attempting to insert, remove, or wire any I/O modules.
In most cases, inserting or removing I/O modules while under power does not cause a 1771-ASB error.
Whenever the 1747-ASB module is not faulted, inserting or removing
I/O modules under power does cause a 1747-ASB error.
Starting Logical Group
Number Selection
(page 4-4)
In the RIO link system, only even numbered logical group numbers
(0, 2, 4, or 6) are valid.
The 1771-ASB module limits the allowable starting logical group numbers based on the selected addressing mode and chassis size.
The 1747-ASB module allows virtually any group number to be selected. The exception is when 1/2-slot addressing and discrete mode is selected. Then, only logical groups 0 and 4 can be used.
Specialty I/O Module Image
Mapping and Control
(page 4-13)
The 1771-ASB module maps all discrete I/O modules using discrete transfers; data is exchanged with the scanner using RIO discrete transfers on the RIO link. All specialty (Intelligent)
(1)
I/O modules are block transfer mapped, data is exchanged with the scanner using RIO block transfers.
The 1747-ASB module handles discrete modules the same way the
1771-ASB module does by using RIO discrete transfers.
IMPORTANT
If you are only using discrete modules, the 1771-ASB and 1747-ASB modules mapping and control are identical.
(1) An Intelligent I/O module is a 1771 nondiscrete I/O module.
Publication 1747-UM006B-EN-P - June 2003
B-4 Differences Between the 1747-ASB Module and the 1771-ASB Series C Module
If the 1747-ASB module is configured for the block transfer mode, it handles all specialty I/O modules in the same manner as the 1771-ASB module does by using RIO block transfers.
IMPORTANT
PLC processor control of 1771 and 1747 specialty I/O modules on the RIO link is the same if the 1747-ASB module is configured for RIO block transfer.
However, the I/O modules themselves are not controlled in the same way.
For example, if a 1771-IFE analog input module is used with the 1771-ASB module, RIO block transfers are used to transfer the 1771-IFE image data between the scanner and 1771-ASB module. In addition, the
1771-IFE module also receives configuration information from the scanner using RIO block transfers. If a 1746-NI4 analog input module is used with the 1747-ASB module, a RIO block transfer is used to transfer 1747-NI4 image data between the scanner and the 1747-ASB module. However the
1746-NI4 module requires no configuration information from the scanner.
In addition , the 1771-IFE image layout is not the same as the 1746-NI4 image layout. For example, the 1771-IFE image contains some alarm values and has words for the module's eight inputs. The
1746-NI4 image only has words for the module's four inputs.
If the 1747-ASB module is configured for the discrete mode, it attempts to map all specialty I/O modules discretely. For more information on how discrete
I/O modules are mapped, refer to page 3-13.
DIP Switch Location
(Chapter 4)
I/O Module Keying
(page 4-21)
The 1771-ASB module has two DIP switches and uses one DIP switch on the 1771 chassis.
The 1747-ASB module has three DIP switches.
The 1771-ASB module uses the chassis hardware keying bands to ensure the proper I/O modules are installed in the correct slot.
The 1747-ASB module uses a DIP switch setting and software to ensure that the proper I/O modules are installed in the correct slots.
Publication 1747-UM006B-EN-P - June 2003
Differences Between the 1747-ASB Module and the 1771-ASB Series C Module B-5
Physical Slot Numbering
(page 3-2)
The 1771-ASB module resides in an unnumbered slot. The first physical slot available to an I/O module is slot 0. The subsequent
physical slots are numbered decimally, up to a maximum of 15.
The 1747-ASB module resides in slot 0. The first physical slot available to an I/O module is slot 1. The subsequent physical slots are numbered decimally, up to a maximum of 30.
Status Indication
(page 7-1)
The 1771-ASB module has three LEDs that indicate module and system status.
The 1747-ASB module has two LEDs and three 7-segment status display that indicate module and system status. The 7-segment status displays provide more detailed operating status and error indication than what can be provided with LEDs.
Throughput
(page A-2)
Inhibit Functionality
(page 6-3)
In most cases the 1747-ASB throughput times are slower than the
1771-ASB throughput times. Refer to Appendix A for the 1747-ASB throughput time information.
If some, but not all, of the 1771-ASB Series C, Revision E logical devices are inhibited, the 1771-ASB module continues to:
• communicate on the RIO link
• control outputs in its chassis
If some, but not all, of the 1747-ASB logical devices are inhibited, the
1747-ASB module:
• continues to communicate on the RIO link if processor restart lockout is not selected, or stops communicating on the RIO link if processor restart lockout is selected
• stops controlling outputs in it's chassis regardless of the processor restart lockout selection. Outputs are held in last state if hold last state is selected or they are reset if hold last state is not selected.
Publication 1747-UM006B-EN-P - June 2003
B-6 Differences Between the 1747-ASB Module and the 1771-ASB Series C Module
Publication 1747-UM006B-EN-P - June 2003
Appendix
C
DIP Switch and Address Configuration
Worksheets
DIP Switch Configuration
1747-ASB Module
This appendix provides worksheets for you to configure your DIP switches and to address your I/O modules.
Use this worksheet to record the DIP switch settings for each of your module.
DIP Switches
Self Locking Tab
1
SW3
Hold Last State
Processor Restart Lockout
Link Response
Last Chassis/PLC-3 Backup
Addressing Mode Bit 1 (MSB)
Addressing Mode Bit 0 (LSB)
Specialty I/O Mode
I/O Module Keying
SW2
Baud Rate Bit 1 (MSB)
Baud Rate Bit 0 (LSB)
Primary/Complementary SLC Chassis
Reserved
ASB Module Image Size Bit 3 (MSB)
ASB Module Image Size Bit 2
ASB Module Image Size Bit 1
ASB Module Image Size Bit 0 (LSB)
ON
OFF
SW1
Logical Rack Number Bit 5 (MSB)
Logical Rack Number Bit 4
Logical Rack Number Bit 3
Logical Rack Number Bit 2
Logical Rack Number Bit 1
Logical Rack Number Bit 0 (LSB)
Logical Group Number Bit 1 (MSB)
Logical Group Number Bit 0 (LSB)
Publication 1747-UM006B-EN-P - June 2003
C-2 DIP Switch and Address Configuration Worksheets
Module _
SW3
Hold Last State
Processor Restart Lockout
Link Response
Last Chassis/PLC-3 Backup
Addressing Mode Bit 1 (MSB)
Addressing Mode Bit 0 (LSB)
Specialty I/O Mode
I/O Module Keying
SW2
Baud Rate Bit 1 (MSB)
Baud Rate Bit 0 (LSB)
Primary/Complementary SLC Chassis
Reserved
ASB Module Image Size Bit 3 (MSB)
ASB Module Image Size Bit 2
ASB Module Image Size Bit 1
ASB Module Image Size Bit 0 (LSB)
SW1
Logical Rack Number Bit 5 (MSB)
Logical Rack Number Bit 4
Logical Rack Number Bit 3
Logical Rack Number Bit 2
Logical Rack Number Bit 1
Logical Rack Number Bit 0 (LSB)
Logical Group Number Bit 1 (MSB)
Logical Group Number Bit 0 (LSB)
Module _
SW3
Hold Last State
Processor Restart Lockout
Link Response
Last Chassis/PLC-3 Backup
Addressing Mode Bit 1 (MSB)
Addressing Mode Bit 0 (LSB)
Specialty I/O Mode
I/O Module Keying
SW2
Baud Rate Bit 1 (MSB)
Baud Rate Bit 0 (LSB)
Primary/Complementary SLC Chassis
Reserved
ASB Module Image Size Bit 3 (MSB)
ASB Module Image Size Bit 2
ASB Module Image Size Bit 1
ASB Module Image Size Bit 0 (LSB)
SW1
Logical Rack Number Bit 5 (MSB)
Logical Rack Number Bit 4
Logical Rack Number Bit 3
Logical Rack Number Bit 2
Logical Rack Number Bit 1
Logical Rack Number Bit 0 (LSB)
Logical Group Number Bit 1 (MSB)
Logical Group Number Bit 0 (LSB)
Module _
SW3
Hold Last State
Processor Restart Lockout
Link Response
Last Chassis/PLC-3 Backup
Addressing Mode Bit 1 (MSB)
Addressing Mode Bit 0 (LSB)
Specialty I/O Mode
I/O Module Keying
SW2
Baud Rate Bit 1 (MSB)
Baud Rate Bit 0 (LSB)
Primary/Complementary SLC Chassis
Reserved
ASB Module Image Size Bit 3 (MSB)
ASB Module Image Size Bit 2
ASB Module Image Size Bit 1
ASB Module Image Size Bit 0 (LSB)
SW1
Logical Rack Number Bit 5 (MSB)
Logical Rack Number Bit 4
Logical Rack Number Bit 3
Logical Rack Number Bit 2
Logical Rack Number Bit 1
Logical Rack Number Bit 0 (LSB)
Logical Group Number Bit 1 (MSB)
Logical Group Number Bit 0 (LSB)
Module _
SW3
Hold Last State
Processor Restart Lockout
Link Response
Last Chassis/PLC-3 Backup
Addressing Mode Bit 1 (MSB)
Addressing Mode Bit 0 (LSB)
Specialty I/O Mode
I/O Module Keying
SW2
Baud Rate Bit 1 (MSB)
Baud Rate Bit 0 (LSB)
Primary/Complementary SLC Chassis
Reserved
ASB Module Image Size Bit 3 (MSB)
ASB Module Image Size Bit 2
ASB Module Image Size Bit 1
ASB Module Image Size Bit 0 (LSB)
SW1
Logical Rack Number Bit 5 (MSB)
Logical Rack Number Bit 4
Logical Rack Number Bit 3
Logical Rack Number Bit 2
Logical Rack Number Bit 1
Logical Rack Number Bit 0 (LSB)
Logical Group Number Bit 1 (MSB)
Logical Group Number Bit 0 (LSB)
Publication 1747-UM006B-EN-P - June 2003
Address Configuration
DIP Switch and Address Configuration Worksheets C-3
Use this worksheet to address the I/O modules residing in the
1747-ASB module chassis.
Bit Number Decimal
Logical
Rack 0
Logical
Rack 1
Logical
Rack 2
Logical
Rack 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
SLC Processor Input Image
High Byte Low Byte
15 8 7 0
I:e.11
I:e.12
I:e.13
I:e.14
I:e.15
I:e.16
I:e.17
I:e.18
I:e.19
I:e.20
I:e.21
I:e.0
I:e.1
I:e.2
I:e.3
I:e.4
I:e.5
I:e.6
I:e.7
I:e.8
I:e.9
I:e.10
I:e.22
I:e.23
I:e.24
I:e.25
I:e.26
I:e.27
I:e.28
I:e.29
I:e.30
I:e.31
SLC Processor Output Image
High Byte Low Byte
Bit Number Decimal
15 8 7 0
Logical
Rack 0
Logical
Rack 1
Logical
Rack 2
Logical
Rack 3
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
O:e.12
O:e.13
O:e.14
O:e.15
O:e.16
O:e.17
O:e.18
O:e.19
O:e.20
O:e.21
O:e.22
O:e.23
O:e.24
O:e.25
O:e.26
O:e.27
O:e.28
O:e.29
O:e.30
O:e.31
O:e.0
O:e.1
O:e.2
O:e.3
O:e.4
O:e.5
O:e.6
O:e.7
O:e.8
O:e.9
O:e.10
O:e.11
e = Slot Number
Publication 1747-UM006B-EN-P - June 2003
C-4 DIP Switch and Address Configuration Worksheets
Bit Number Decimal
Logical
Rack 0
Logical
Rack 1
Logical
Rack 2
Logical
Rack 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
SLC Processor Input Image
High Byte Low Byte
15 8 7 0
I:e.17
I:e.18
I:e.19
I:e.20
I:e.21
I:e.22
I:e.11
I:e.12
I:e.13
I:e.14
I:e.15
I:e.16
I:e.0
I:e.1
I:e.2
I:e.3
I:e.4
I:e.5
I:e.6
I:e.7
I:e.8
I:e.9
I:e.10
I:e.23
I:e.24
I:e.25
I:e.26
I:e.27
I:e.28
I:e.29
I:e.30
I:e.31
Bit Number Decimal
SLC Processor Output Image
High Byte Low Byte
15 8 7 0
Logical
Rack 0
Logical
Rack 1
Logical
Rack 2
Logical
Rack 3
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 0
Group 1
Group 2
Group 7
Group 0
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
O:e.10
O:e.11
O:e.12
O:e.13
O:e.14
O:e.15
O:e.16
O:e.17
O:e.18
O:e.19
O:e.20
O:e.21
O:e.0
O:e.1
O:e.2
O:e.3
O:e.4
O:e.5
O:e.6
O:e.7
O:e.8
O:e.9
O:e.22
O:e.23
O:e.24
O:e.25
O:e.26
O:e.27
O:e.28
O:e.29
O:e.30
O:e.31
e = Slot Number
Publication 1747-UM006B-EN-P - June 2003
Numerics
1/2-slot addressing 3-10 considerations 3-11 examples 3-12
1771-ASB series c B-1
1-slot addressing
considerations 3-8 examples 3-9
2-slot addressing 3-4 considerations 3-5 examples 3-6
A
adapter 1-4 extended node capability 1-8 interaction with scanners 1-2 on RIO link as slave device 1-2
adapter image 1-4 in relation to logical devices 1-6 size of 1-5
addressing I/O modules 3-3
1/2-slot addressing 3-10 considerations 3-11 examples 3-12
1-slot addressing 3-7, 3-8 considerations 3-8 examples 3-9
2-slot addressing 3-4 considerations 3-5 examples 3-6 configuration worksheet C-3 overview 3-3
addressing labels
attaching to the I/O modules 2-5, 5-6
addressing mode 4-21 in basic SLC example 8-3, 8-4 in PLC example 8-17, 8-18, 8-21, 8-22 in SLC example 8-9, 8-12, 8-13
Allen-Bradley 7-2 contacting for assistance 7-2
application example program 8-7 basic SLC 8-7
PLC 8-24
SLC 8-15
application examples 8-1 basic SLC 8-1
PLC 8-15
SLC 8-7
Index
ASB module backplane scan time
throughput A-6
ASB module features 1-10 hardware 1-11 cable tie slots 1-13
DIP switches 1-11 door label 1-13
RIO link and processor restart lockout 1-13 self-locking tabs 1-13 status display and LEDs 1-11
ASB module image size 4-10 special image and chassis size considerations 4-13
ASB module installation 5-1
B
base backplane scan time
throughput A-6
basic SLC application example 8-1 application example program 8-7
ASB module I/O mapping details 8-4 module configuration details 8-4 processor image 8-3
RIO address label example 8-5
RIO device configuration 8-3
baud rate 1-12
ASB module feature 1-10
DIP switch setting 4-4 link termination 5-4 link wiring 5-2
PLC example 8-17
SLC basic example 8-2
SLC example 8-9
block transfer 1-7 throughput A-12 transferring data 1-7
block transfer mode 3-14
C
cable distances 5-2 maximum 5-2
cable tie slots 1-13
chassis overview 3-1, 4-13 odd sizes 4-13 remote chassis 3-1 remote expansion chassis 3-1 types available 3-1
check mode 6-2
Class1, Division 2 5-5 momentary switch 5-5
Publication 1747-UM006B-EN-P - June 2003
2 Index
compatible modules 1-10
compatible RIO adapters 1-9
compatible RIO scanners 1-8
complementary I/O 4-5 in basic SLC application example 8-3, 8-4 in PLC application example 8-17, 8-19,
8-20 in SLC application example 8-9, 8-11
contacting Allen-Bradley for assistance
7-2
D
definitions 1-3
differences between 1747-ASB and
1771-ASB series c modules B-1
DIP switch locations B-4 hold last state B-2
I/O module keying B-4 image size selection B-1 inhibit functionality B-5 inserting and removing I/O modules under power B-3 physical slot numbering B-5 remote expansion chassis B-2 specialty I/O module image mapping and control B-3 starting logical group number selection
B-3 status indication B-5 throughput B-5
DIP switch 4-1 configuration of mismatch fault codes 7-5 configuration worksheet C-1 summary of switch settings 4-22
SW 2 4-4 configuration 4-4, 4-6
SW 3 4-15 configuration 4-15
DIP switch configuration mismatch fault
codes 7-5
discrete I/O modules 3-13 mapping 3-13 overview of 3-13
discrete I/O throughput with block
transfers present example A-10
discrete I/O throughput without block
transfers present example A-7
discrete mode 3-15
discrete transfer 1-2 transferring data 1-6
door labels 1-13 applying octal labels 2-6
E
equipment needed 2-1
errors 7-1 major 7-1 minor 7-1
examples 8-1 basic SLC application 8-1
SLC application 8-7
extended node capability 1-8 link termination 5-4 of scanners and adapters 1-8 of the ASB module 1-8
H
hardware features 1-11 cable tie slots 1-13
DIP switches 1-11 door label 1-13
RIO link and processor restart lockout connector 1-13 self-locking tabs 1-13 status displays and LEDs 1-11
hold last state 4-15 in basic SLC example 8-3, 8-4 in PLC example 8-17, 8-19, 8-20 in SLC example 8-9, 8-11 start up and operation 6-5
humidity specifications A-1
I
I/O module addressing labels 5-6
PLC as master 5-6
SLC as master 5-6
I/O module configuration mismatch fault
codes 7-7
I/O module insertion under power 6-9
I/O module keying 4-22 in basic SLC example 8-3 in SLC example 8-9
I/O module removal from a scanned slot
6-9
I/O module removal from an unscanned
slot 6-10
I/O runtime fault codes 7-8
image mapping 3-13 discrete 3-13 specialty 3-13
Publication 1747-UM006B-EN-P - June 2003
Index 3
inhibit 6-4
installing the ASB module in an SLC
chassis 5-1
invalid RIO link transfers 6-6
L
labels, addressing
attaching to the I/O modules 2-5, 5-6
labels, door 1-13 applying octal labels 2-6
last chassis/PLC 3 backup 4-19 in basic SLC example 8-3, 8-4 in PLC example 8-17, 8-19, 8-20 in SLC example 8-9, 8-11
link response time 4-18 in basic SLC example 8-3 in PLC example 8-17, 8-19, 8-20 in SLC example 8-9
link termination 5-4 resistor required for 5-4
link wiring 5-2 correct link wiring 5-2 incorrect link wiring 5-2 link termination 5-4
logical device 1-6 adapters 1-6 assigning space C-3
logical group 1-4
logical rack 1-4 crossing logical rack boundaries 1-5 significance of 1-6
M
major error 7-1
manuals
related 1-2
master device 1-2
minor error 7-1
N
network specifications A-1
normal operation 6-2 exceptions 6-3 status display codes 7-2
O
octal labeling information
image bit numbering 1-5
operation 6-2 exceptions 6-3 status display codes for normal operating conditions 7-2
P
PLC application example 8-15 application example program 8-24
ASB module 1 configuration 8-19
ASB module 1 I/O mapping 8-21
ASB module 2 configuration 8-20
ASB module 2 I/O mapping 8-22
PLC processor image 8-18
RIO address label examples 8-23
RIO device configuration 8-17
power supply loading specification A-1
power up and initialization 6-1 check mode 6-2 save mode 6-2
processor restart lockout 4-17 in basic SLC example 8-3, 8-4 in PLC example 8-17, 8-19, 8-20 in SLC example 8-9, 8-11 not selecting 6-4 selecting 6-4 switch wiring 5-5
publications
related 1-2
R
rack boundaries
crossing logical 1-5
remote chassis 3-1 slot numbering 3-2 with I/O modules 1-1 with remote I/O 1-2
remote expansion chassis 3-1 slot numbering 3-2 with I/O modules 1-1 with remote I/O 1-2
remote expansion chassis power loss 6-6
remote I/O overview 1-2
required tools and equipment 2-1
reset, adapter decide 6-3 status display codes 7-2
reset, adapter reset 6-3 status display codes 7-2
RIO
compatible adapters 1-9 compatible scanners 1-8
RIO adapters 5-6
RIO address label 8-5
Publication 1747-UM006B-EN-P - June 2003
4 Index basic SLC application example 8-5
PLC application example 8-23
PLC example 5-6
SLC application example 8-13
SLC example 5-6
RIO device configuration 8-17 basic SLC application example 8-2
PLC application example 8-17
SLC application example 8-9
RIO link 1-2 invalid link transfers 6-6 physical and logical specifications 1-8
RIO scan time
throughput A-5
S
save mode 6-2
scanner 1-2 extended node capability 1-8 image division 1-4 logical groups 1-4 logical racks 1-4 interaction with adapters 1-2 overview 1-2
slave device 1-2
SLC application example 8-7 application example program 8-15
ASB module 1 configuration 8-10
ASB module 1 I/O mapping 8-12
ASB module 2 configuration 8-11
ASB module 2 I/O mapping 8-13 processor image 8-10
RIO address label examples 8-13
RIO device configuration 8-9
slot numbering 3-2
ASB module placement 3-2
slot pairing 8-12
specialty I/O mode 4-21 in PLC example 8-17, 8-21 in SLC basic example 8-3 in SLC example 8-9, 8-12, 8-13
specialty I/O modules 3-14 mapping 3-14 block transfer mode 3-15 discrete mode 3-16 overview 3-13
specifications A-1 network specifications A-1 power supply loading A-1 temperature and humidity A-1 throughput A-1
Publication 1747-UM006B-EN-P - June 2003
start up and operation 6-1
status display codes 7-2
DIP switch configuration mismatch fault codes 7-5
I/O module configuration mismatch fault codes 7-7
I/O runtime fault codes 7-8 status operating codes for normal operating conditions 7-2
status operating codes for normal
operating conditions 7-2
SW 2 4-4
DIP switch 4-4
SW 3 4-15
DIP switch 4-15 addressing mode 4-21 hold last state 4-15
I/O module keying 4-22 last chassis/PLC 3 backup 4-19 link response time 4-18 power up and initialization 6-1 processor restart lockout 4-17 specialty I/O mode 4-21 system startup 6-1
system start up 6-1
T
temperature specifications A-1
terms 1-3
testing the ASB module 6-7
throughput A-2 calculating throughput A-4 block transfer A-12 with block transfers present A-9 without block transfers present A-4 introduction A-2
tools needed 2-1
transferring data with RIO discrete and
block transfers 1-7 overview 1-7
RIO discrete example 1-7
troubleshooting 7-1 contacting Allen-Bradley 7-2 major error 7-1 minor error 7-1
W
wiring a processor restart lockout
switch 5-5 status display code 7-2
Publication 1747-UM006B-EN-P - June 2003
7
Supersedes Publication 1747-6.13 - December 1996 Copyright © 2003 Rockwell Automation. All rights reserved. Printed in the U.S.A.
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Key Features
- Single-slot RIO communication link module
- Occupies the first slot (slot 0) of a 1746 remote chassis
- Acts as a gateway between the scanner and remote I/O modules
- Maps the image of the I/O modules directly to the SLC or PLC processor image
- Supports all SLC 5/01 compatible I/O modules
- Extended node capability