Siemens SINAMICS G120 Function Manual page 129

Enabling Shared Device
If you control the inverter safety functions via PROFINET and "Shared Device", you must
enable this function in the inverter.
See also Section: Configuring shared device communication via PROFINET (Page 82).
Procedure
To configure communication via "Shared Device" in the inverter, proceed as follows:
1. In STARTER change to the expert list.
2. In STARTER, set p8929 = 2.
You have configured the communication via "Shared Device" in the inverter.
Starting communication via PROFIsafe
When you connect the converter to the higher-level control system (F-CPU) via the fieldbus
for the first time, the central control system sends the PROFIsafe configuration to the
converter. After the configuration data have been received in the converter,
PROFIsafecommunication starts.
The converter only monitors the communication to the F-CPU after the configuration data
have been received from the central control system.
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 04/2014, FW V4.7, A5E34261271B AA
Commissioning
5.7 Setting extended functions
129