f16bmathis
Member
I have a CompactLogix 1769-L18ER-BB1B that was power cycled a few times and had a mechanic pull the memory card with power on and re-insert it. At some point the OK LED started flashing and several power cycles have not helped. Our PLC engineer tried connecting through ethernet and said he could not reset it and it lost I/O. I used to be OK with PLC's, but it's been a few years...