Hi everyone, the safety protector is used to protect the F-SMs from any overvoltage developing in the
case of a fault/error.(6ES7195-7KF00-0XA0). I know between standard and F-safe module you must use that. But after IM153-2 (6ES7153-2AR04-0XA0) when you use fail-safe cards (just for some fail-safe cards you must use safety module.

for which fail-safe cards we must use Safety module ????? if you have any doc. please add here.

 Thank you very much.

Hello vahid;

Maybe the explanations from this document can provide the answers you are looking for:

How can you combine fail-safe and standard modules in the ET 200 stations?

https://support.industry.siemens.com/cs/ww/en/view/14198063

The Associated Products tab contains a list of module part numbers that you can copy and use in your own documentation.

Hope this helps,

Daniel Chartier