theniceguy_26251
Member
PLC-5 remote I/O rack, intermittantly faults on the remote I/O adapter. Green lite blinks, adapter fault lite is red, I/O rack fault is red. We've changed the power supply, installed a sola power conditioner, changed the remote I/O adapter twice and finally changed the backplane. The frequency of occurrance has dropped in half, but the fault still happens. I want to test the blue hose (its daisy chaned and one of the runs is long) for possible damage after some recent contract work on the conduit, but I have no idea what a competent test would involve. Is there a tester that will check the impedance, do the transmission line length thing and test teh capacitance(mechanical engineer here- PLC newbie)? Any help is GREATLY appreciated!