One of our customers has a PLC 5/20 hot backup system installed and running for around 2 years. Just yesterday received a call saying that one of the processors has faulted. Visited the site today but couldn't establish communication with the PLC either through RS232 or through DH+.
The status of the LEDs on the processor is as follows:
BATT - OFF
PROC - solid red
FORCE - OFF
COMM - OFF
CH 1A and CH 1B - solid red
From the manual, I understand that it's a hardware fault and I need to replace the processor.
Has anyone come across something like this?
The status of the LEDs on the processor is as follows:
BATT - OFF
PROC - solid red
FORCE - OFF
COMM - OFF
CH 1A and CH 1B - solid red
From the manual, I understand that it's a hardware fault and I need to replace the processor.
Has anyone come across something like this?