Siemens SIPART PS2 Operating Instructions Manual page 144

Functional safety
8.6 Maintenance/check
Checking the safety function
Check the safety function as detailed in chapter "Settings (Page 142)"
Checking safety
Verify the safety function of the entire safety circuit on a regular basis in accordance with
IEC 61508/61511. The test intervals are determined in the course of calculations for each
safety circuit of a system (PFD
144
).
AVG
Operating Instructions, 02/2016, A5E00127926-AB
SIPART PS2 with PROFIBUS PA