Rockwell Automation 1785-CHBM ControlNet PLC-5 Hot Backup System User Manual - Manual (Page 11)

iii Publication 1785-UM024B-EN-P - January 2003
Table of Contents
Preface
Manual Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-1
Who Should Use This Manual . . . . . . . . . . . . . . . . . . . . . . P-1
What This Manual Contains . . . . . . . . . . . . . . . . . . . . . . . . P-2
Terms and Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . P-2
Related PLC-5 Publications . . . . . . . . . . . . . . . . . . . . . . . . P-3
Related ControlNet Publications . . . . . . . . . . . . . . . . . . . . . P-3
Summary of Changes
New Features and Information. . . . . . . . . . . . . . . . . . . . . . S-1
Backup Concepts for the
ControlNet PLC-5 Hot Backup
System Chapter 1
Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Why Use a Backup System? . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Basic System Architecture . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
How the Backup System Works. . . . . . . . . . . . . . . . . . . . . 1-2
Qualification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Equivalence Checking . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Bumpless Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Switchover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Understanding the ControlNet
PLC-5 Hot Backup System
Components Chapter 2
Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Software Components . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Firmware Components . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Summary of Required Hardware, Firmware and Software . . 2-4
ControlNet Backup Cartridge . . . . . . . . . . . . . . . . . . . . . . . 2-5
Installing and Configuring Your
ControlNet PLC-5 Backup
System Chapter 3
Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Installing the Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Configuring Your Backup System . . . . . . . . . . . . . . . . . . . 3-2
Configuring With a Single Control Application . . . . . . . 3-3
Configuring With Differing Applications . . . . . . . . . . . . 3-11