Unknown Fault Indication of CI840
I experienced strange behavior of CI840A fault indication. At first, I tried to move around the module to some other Remote IO, but it worked fine. So I assumed that module is good.
Then I tried to change TU847 module with the new one (and also with other good CI840A), but fault indication still there. I’m pretty sure that software configuration is all fine. Do we miss some electrical wiring requirement, or maybe some related software configuration?
Thank you in advance
Sounds strange if worked previously should work at other place also.
Just check CI840A modules hardware is properly installed on TU847 ? there is one metal bolt should be tightened enough to fit module into the TU847 base....
What else could be possibility of getting fault !