Setting The Address - Siemens SINAMICS G110M Function Manual

Communication via RS485
5.4 Communication using Modbus RTU
5.4.1.1

Setting the address

You set the bus address of the inverter using the
address switches on the Control Unit, using parameter
p2021 with the BOP-2 or in STARTER.
Using parameter p2021 (factory setting: 1) or using
STARTER, you can only set the address, if all address
switches are set to "OFF" (0).
Valid address range: 1 ... 247
If you have specified a valid address using the
address switches, this address will always be the one
that takes effect and parameter p2021 cannot be
changed.
Only addresses in the range 1 ... 127 can be set via the address switches. If you require an
address in the range 128 ... 247, set the address switches to 0 and enter the address using
p2021.
The position of the address switches can be found in the operating instructions of the Control
Unit in the section "Overview of interfaces".
Procedure
To change the bus address, proceed as follows:
1. Set the new address:
– using the address switches
– from an operator panel in parameter p2021
– in STARTER using screen form "Control Unit/Communication/Fieldbus", or using the
2. Switch off the inverter supply voltage.
3. Wait until all LEDs on the inverter go dark.
4. Switch on the inverter supply voltage again.
Your settings become active after switching on.
You have so changed the bus address.
122
expert list in parameter p2021
Function Manual, 01/2016, FW V4.7 SP6, A5E34229197B AC
Fieldbuses