Siemens SINAMICS S120 Function Manual page 362

System features
8.4 Response times
t_K is the time for internal communication within the SINAMICS module; t_K can be determined as follows:
6)
For isochronous communication
For non-isochronous
communication
p2048 applies to communication via IF1, p8848 to communication via IF2.
7)
This component will be reduced from 5 · p9500 to 3 · p9500 if an isochronous PROFIsafe telegram is used with optimal-
8)
ly timed execution on the F-CPU.
360
t_K = To (for To, see parameter r2064[4])
t_K = 4 ms
(for modules, on which p2048 or p8848
t_K = value from p2048 or p8848
(for modules on which p2048 or p8848
does not exist)
7)
7)
exists)
7)
Function Manual, 12/2018, 6SL3097-5AR00-0BP1
Safety Integrated