chrismarlin
Member
I have a problem with the communication processor 6GK1543-1AA01 linking S5 135U (CPU 928) to an OP30 display.
The Stop and Run leds are both ON simultaneously and cannot put it back into Run mode. Does anyone know how to solve this problem ??
The Stop and Run leds are both ON simultaneously and cannot put it back into Run mode. Does anyone know how to solve this problem ??