User Manual

1 Publication 1747-UM010B-EN-P - September 2003
Preface
Read this preface to familiarize yourself with the rest of the manual.
This preface covers the following topics:
• who should use this manual
• how to use this manual
• related publications
• conventions used in this manual
• Allen-Bradley support
Who Should Use This
Manual
Use this manual if you are responsible for designing, installing,
programming, or troubleshooting control systems that use
Allen-Bradley small logic controllers.
How to Use This Manual
As much as possible, we organized this manual to explain, in a
task-by-task manner, how to install, configure, program, operate and
troubleshoot a control system using the 1747-BSN Backup Scanner.
Manual Contents
If you want... See
An overview of the system including backup scanner/SLC interaction,
compatible devices, and features
Chapter 1
A quick start guide for experienced users Chapter 2
Installation and wiring guidelines Chapter 3
Operating your SLC 500 backup system Chapter 4
Backup scanner configuration information, I/O file information, and G and
M file descriptions
Chapter 5
Information on module control and status word Chapter 6
RIO block transfer information, M file block transfer buffer layout, block
transfer examples
Chapter 7
Switchover considerations Chapter 8
Programming techniques Chapter 9
Backup scanner and system specifications Appendix A
Information and usage of M and G files Appendix B
Worksheets for configuring the scanner’s I/O image Appendix C
Definitions of terms used in this manual Glossary