Overwrite Program Omron PLC

Mohamed El

Member
M
Join Date
Nov 2022
Location
Algeria
Posts
9
Hello everyone,

We have a PLC Omron CJ2m CPU12, it contains an old program and it is UM read protected by password. Now we have a new program and we want to overwrite the old program but we forgot the password. So the problem is that we can't transfer the program to the PLC even with the DIP Switch 1 set to OFF state.

Is there any method to overwrite the old program or to unlock the PLC ?

Thanks in advance for your answers.
 

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