PaulKraemer
Member
- Join Date
- Jan 2005
- Posts
- 24
Hi,
A little over a year ago, I set up a control system with an AB PLC 5/11. It was working fine, but the machine has sat idle since then. Now my customer wants to use it, and it appears that none of the 1771-OAD AC (12-120V)output modules are working. Their "Active" lights are not lit. This is true for everone one of these modules that I have installed (there are nine total - seven in the same chassis as the PLC, and two in a second chassis that communicates with the PLC using a 1771-ASB card.
I had my customer use the key on the PLC to switch it to "Program" mode and back to "Run". He has cycled power to the PLC several times as well. I can't imagine that nine of these modules would have all failed. If anyone could suggest anything I can check, I'd really appreciate it.
Thanks,
Paul
A little over a year ago, I set up a control system with an AB PLC 5/11. It was working fine, but the machine has sat idle since then. Now my customer wants to use it, and it appears that none of the 1771-OAD AC (12-120V)output modules are working. Their "Active" lights are not lit. This is true for everone one of these modules that I have installed (there are nine total - seven in the same chassis as the PLC, and two in a second chassis that communicates with the PLC using a 1771-ASB card.
I had my customer use the key on the PLC to switch it to "Program" mode and back to "Run". He has cycled power to the PLC several times as well. I can't imagine that nine of these modules would have all failed. If anyone could suggest anything I can check, I'd really appreciate it.
Thanks,
Paul