Siemens SINAMICS S120 Function Manual page 756

Communication
11.3 Communication via PROFINET IO
Setting the DHCP address assignment with SINAMICS parameters
As an alternative to the address assignment by the SIMATIC Manager, the DHCP address
assignment can also be initiated using SINAMICS parameters. In this case, the Control Unit
always fetches the IP address from a DHCP server after each POWER ON. You can make
the settings using the expert list of the STARTER:
1. Activate the DHCP address assignment using one of the following settings (where the
values 2 and 3 mean "MAC address" and "Device name", respectively):
– For Ethernet onboard (X127): p8904 = 2 or 3
– For PROFINET onboard: p8924 = 2 or 3
2. You can now activate the defined interface configuration (each value 1) or activate and
store permanently (each value 2). Make one of the following settings:
– For Ethernet onboard (X127): p8905 = 1 or 2
756
– For CBE20: p8944 = 2 or 3
The DHCP server now assigns temporarily an IP address.
– For PROFINET onboard: p8925 = 1 or 2 (applies only to SINAMICS S120 devices)
– For CBE20: p8945 = 2
A direct activation is not possible for the CBE20. The configuration can only be saved.
The setting then becomes automatically active for the next POWER ON.
Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
Drive functions