Siemens SINAMICS S120 Function Manual page 742

Communication
11.3 Communication via PROFINET IO
3. In the following window, you lock the access of the PROFIsafe telegrams through the A-
CPU.
Figure 11-48 Safety telegrams of the A-CPU enabled
Inserting the PROFIsafe controller in STEP 7
You configure the PROFIsafe controller in precisely the same way as the drive control under
STEP 7.
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Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
Drive functions