Application example (
http://support.automation.siemens.com/WW/view/en/76254308
System properties
8.2 Probability of failure of the safety functions (PFH value)
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD
369