Help on S7

[sayahan2003]

Dear Friends
i want to change the CPU of my plc(siemens S7). I know that i must change the type of Cpu in Hardware configuration. My question is , anywhere else i must do any change? i mean, anymore hardware or software change is needed?

 

[harrydeharry]

Dear sayahan the new cpu must be same or higher version. just change into the hardware and thing will work

 

[Doug_Adam]

You should also check the physical width of your CPU. Just to make sure the new one can fit in the same spot as the old one.