T07-C42 troubleshooting answers
1 question with answers cited from the manufacturer manuals.
- 0ControlLogix 5570 T07:C42 after controller swap, what to check?
A Major Fault T07:C42 on a ControlLogix controller indicates a revision mismatch. This means the project in the controller's nonvolatile memory has a different firmware revision than the controller itself. This fault typ…