Rockwell Automation Publication 2080-UM002N-EN-E - November 2022 315
Appendix D          Troubleshooting
Controller Error Recovery 
Model
Use the following error recovery model to help you diagnose software and hardware problems 
in the micro controller. The model provides common questions you might ask to help 
troubleshoot your system. See the recommended pages within the model for further help.
Controller Error Recovery Model
Diagnose fault in Connected Components 
Workbench software and see page 309
 for 
probable cause and recommended action.
Clear the fault.
Correct the condition 
causing the fault.
Check the Fault LED.
Flashing red = Recoverable
Solid red = Non-recoverable
Test and verify 
system operation.
Is fault recoverable?
Is the 
Power LED 
on?
Check the wiring.
Power cycle the controller.
Start
No
No
Yes
Yes
End