Basic Settings For Communication - Siemens Sinamics G120P Operating Instructions Manual

Operation
6.8 Communication via RS485
6.8.4.1

Basic settings for communication

Setting the address
You set the MAC address of the inverter using the
address switches on the Control Unit, using parame-
ter p2021 or in STARTER.
Valid address range: 0 ... 127.
For address 0, the inverter responds to a broadcast.
If you have specified a valid address ≠ 0 using the
address switches, this address will always be the one
that takes effect and parameter p2021 cannot be
changed.
The positions of the address switches are described
in Section: CU230P-2 HVAC Control Unit (option
K98) (Page 87).
Procedure
To change the bus address, proceed as follows:
1. Set the address using one of the subsequently listed options:
– Using the address switches
– With the IOP using p2021
– In STARTER using screen form "Control Unit/Communication/Fieldbus", or using the
2. Switch on the inverter power supply and, if available, the 24 V power supply for the
Control Unit.
3. Switch on the voltages again after all LEDs at the inverter have gone dark.
242
expert list in parameter p2021.
Inverter cabinet units
Operating Instructions, 12/2014, A5E32923362A