kingofdarkness4
Member
Need some help here. Im trying to get my slc 503 processor "1747-L532E 503 CPU 16k Mem OS302 Series C FRN 5" to work. Everytime I go to download the program It always returns a x55h Error Code. I tried moving it another slot and it still returns the same error. I pulled out all the slots and disabled them and the plc runs. Is there anything you can suggest? I have already tried swapping the backplane and that didnt fix the issue. Everytime I go to read IO config, it also says it cannot read config for slot 1 -7. Any ideas?