Rockwell Automation 1756-RMxx ControlLogix Enhanced Redundancy System User Manual User Manual
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Rockwell Automation Publication 1756-UM535D-EN-P - November 2012
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Table of Contents
Support for Partial Import Online . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Finalize Edits with Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Reserve Memory for Tags and Logic. . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Monitor and Maintain an Enhanced
Redundancy System
Controller Logging in Enhanced Redundancy Systems . . . . . . . . . 190
Use Programming to Monitor System Status . . . . . . . . . . . . . . . . . . . . . . 190
Check Qualification Status via Module Status Displays . . . . . . . . . 192
Check Qualification Status via the RMCT . . . . . . . . . . . . . . . . . . . . 194
Synchronization After a Switchover. . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Check the ControlNet Module Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Monitor the ControlNet Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Troubleshoot a Redundant System
Check the Module Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Use RSLogix 5000 Software to View Errors . . . . . . . . . . . . . . . . . . . . . . . 201
Redundant Controller Major Fault Codes . . . . . . . . . . . . . . . . . . . . . 203
Use the RMCT for Synchronization Attempts and Status . . . . . . . . . . 204
Recent Synchronization Attempts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Module-level Synchronization Status. . . . . . . . . . . . . . . . . . . . . . . . . . 205
Interpret Event Log Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Contact Rockwell Automation Technical Support . . . . . . . . . . . . . 216
Keeper Status Causing Synchronize Failure. . . . . . . . . . . . . . . . . . . . . . . . 216
Check the Module Status Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Check Keeper Status in RSNetWorx for ControlNet Software . . 217
Valid Keeper Status and Signatures . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Partner Network Connection Lost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Redundancy Module Connection Lost. . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Qualification Aborted Due to a Nonredundant Controller . . . . . . . . . 225