Technical specifications
A.2 Fail-Safe CPU technical specifications
S7-1200 Functional Safety Manual
146 Manual, 02/2015, A5E03470344-AA
Each F-I/O shows you the following information on the "Module information" page in the
"Safety" tab:
● F_Par_CRC (w addresses) (F-parameter signature)
● Safety mode
● F-monitoring time
● F-source address
● F-destination address
You do not have write access to F-blocks.