Siemens SINAMICS G120 Function Manual page 318

Appendix
A.3 Standards and specifications
Benchmarks for establishing whether or not a sufficient level of functional safety has been
achieved include the probability of hazardous failures, the fault tolerance, and the quality that
is to be ensured by avoiding systematic faults. This is expressed in the standards using
specific classification. In IEC/EN 61508, IEC/EN 62061 "Safety Integrity Level" (SIL) and
EN ISO 13849-1 "Category" and "Performance Level" (PL).
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Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 04/2014, FW V4.7, A5E34261271B AA