Rockwell Automation 1756-RMxx ControlLogix Enhanced Redundancy System User Manual - Manual (Page 141)

Rockwell Automation Publication 1756-UM535D-EN-P - November 2012 141
Chapter
7
Program the Redundant Controller
Configure the Redundant
Controller
Both controllers in the ControlLogix enhanced redundancy system operate by
using the same program. You do not need to create a project for each controller in
the redundant system.
To configure your controllers to operate in a redundant system, complete
these steps
1. Open or create a RSLogix 5000 project for your redundant controller.
2. Access the Controller Properties dialog box for the controller.
Topic Page
Configure the Redundant Controller 141
Crossloads, Synchronization, and Switchovers 144
Crossloads and Scan Time 149
Program to Minimize Scan Times 152
Program to Maintain Data Integrity 159
Program to Optimize Task Execution 163
Program to Obtain System Status 168
Program Logic to Run After a Switchover 170
Use Messages for Redundancy Commands 171
Set the Task Watchdog 175
Download the Project 177
Store a Redundancy Project to Nonvolatile Memory 178
Online Edits 182