rwy34ils
Member
I have a MicroLogix 1500 with some external I/O modules. Module 6 is an analog output 1769OF4CI.
At startup a few weeks ago, I immediately got a a fault code 689h. The documentation is sparse but it says that this is a non-recoverable user fault in module 6. That's all it says.
I installed a spare module and sent the defective module to AB for repair. The spare has been working fine. Today the repaired module came back and I installed it, only to get a fault 689h again. I removed it and put the spare back in and now it says 689h too. So I have 2 non-working modules. Tried clearing the fault but it comes right back as soon as I go to "Run".
Can anyone clue me in as to what is happening here?
At startup a few weeks ago, I immediately got a a fault code 689h. The documentation is sparse but it says that this is a non-recoverable user fault in module 6. That's all it says.
I installed a spare module and sent the defective module to AB for repair. The spare has been working fine. Today the repaired module came back and I installed it, only to get a fault 689h again. I removed it and put the spare back in and now it says 689h too. So I have 2 non-working modules. Tried clearing the fault but it comes right back as soon as I go to "Run".
Can anyone clue me in as to what is happening here?