Abb op45 plc

Hi. i have a problem about ABB op45 plc system .
I have a old machine using ABB op45 PLC control system .Recetly suddenty could not run.When power on,it show "program stop" alarm lamp back of op45. Infront lcd display "RAM OK_".So no other work.


So.pls.

I'd guess it lost the program. Do you have backups?

Thanks Dirt

Dirt said:

I'd guess it lost the program. Do you have backups?

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Yes mabey I have lost my program and havnt any backups,its an old second hand machine.Could you give me more help if you familiar with ABB op45 scs .