I FACED Problem while restore the back up after replacing the CPU PM810
After I repalced the CPU PM810 I can't download the backup
OPC Trarget PC1 error ( this is the message )
I replaced the old with new one but same type and V1, i have to block programs before i download the application but the ( block program ) it is not shown.
how can restor plc program to controller pm810 uesing builder 4.1
- can any one write for me the steps for restor