JGolden
Member
Hello all - Preface: This is my first time working with these modules and Studio5000.
I have a 1734-AENT/C setup in slot order of 1-IB8S, 2-IB8S, 3-OB8S, 4-IB8S connected to a 1769-L36ERMS processor. The RIO handles emergency stop circuits, light curtains, etc.
The issue I'm seeing is random estop faults on our HMI. I used some counters to monitor the various estop inputs which are all on slots 1 and 2 and found slot 2 has 2 inputs that randomly turn off. Physically I cannot find an issue in hardware or wiring. To troubleshoot I bypassed all hardware and put jumpers in the modules and was still getting random faults for the same inputs. We also have random issues where slot 2 goes into a major fault for communication loss and we have to reset power to the AENT to clear it.
Repair attempts - we tried swapping out the base/backplane connectors for this module, still faulting.
Now I am trying to replace the module itself and this is what I'm getting. MS light flashes red at power up. In module properties ->safety tab, click reset ownership, the NS light comes on but MS stays blinking red. Configuration Ownership states Not Owned and Status still shows Faulted. I've tried inhibiting the module first and then resetting ownership as well.
The processor safety configuration is "Configure only when no safety signature exists". Safety Application is unlocked.
I have tried 2 separate modules now with the same results so I think I'm missing something here...
I have a 1734-AENT/C setup in slot order of 1-IB8S, 2-IB8S, 3-OB8S, 4-IB8S connected to a 1769-L36ERMS processor. The RIO handles emergency stop circuits, light curtains, etc.
The issue I'm seeing is random estop faults on our HMI. I used some counters to monitor the various estop inputs which are all on slots 1 and 2 and found slot 2 has 2 inputs that randomly turn off. Physically I cannot find an issue in hardware or wiring. To troubleshoot I bypassed all hardware and put jumpers in the modules and was still getting random faults for the same inputs. We also have random issues where slot 2 goes into a major fault for communication loss and we have to reset power to the AENT to clear it.
Repair attempts - we tried swapping out the base/backplane connectors for this module, still faulting.
Now I am trying to replace the module itself and this is what I'm getting. MS light flashes red at power up. In module properties ->safety tab, click reset ownership, the NS light comes on but MS stays blinking red. Configuration Ownership states Not Owned and Status still shows Faulted. I've tried inhibiting the module first and then resetting ownership as well.
The processor safety configuration is "Configure only when no safety signature exists". Safety Application is unlocked.
I have tried 2 separate modules now with the same results so I think I'm missing something here...
