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1747-UM006B-EN-P, Remote I/O Adapter Module User Manual Remote I/O Adapter
Module
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:
Allen-Bradley is a trademark of Rockwell Automation
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. 1
Publication 1747-UM006B-EN-P - June 2003
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
1-9
Updated table of compatible RIO adapters
1-9
Updated list of compatible modules
1-10
Added primary/complementary chassis
information for SW2
2-3
Clarified DIP SW setting
4-5
C-Tick certification
A-1 Publication 1747-UM006B-EN-P - June 2003
2 Summary of Changes i
Publication 1747-UM006B-EN-P - June 2003
Table of Contents
Preface
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
Overview
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
Chapter 3
Addressing
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
Configuration
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 . . . . . . . . . . .