Parameters For Setting Communication Via Modbus Rtu; Setting The Address - Siemens SINAMICS G120X Operating Instructions Manual

Infrastructure converter for hvac/water/wastewater

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Advanced commissioning

6.3 Drive control

Function description

1. Using parameter p2021, set the address using an operator panel or SINAMICS G120 Smart

Permissible addresses: 0 ... 31.

2. Switch off the converter power supply.

3. Wait until all LEDs on the converter are dark.

4. Switch on the converter power supply again.

Your settings become active after switching on.

You have set the bus address.

Parameters for setting communication via Modbus RTU

General settings

Fieldbus protocol selection

Setting range: 4800 bit/s ... 187500 bit/s

In the factory, the Control Unit is set for controllers with even parity You can adapt the parity at

your controller using p2031:

● p2031 = 0: No parity, 1 stop bit or 2 stop bits

● p2031 = 1: Odd parity, 1 stop bit

● p2031 = 2: Even parity, 1 stop bit

Fieldbus interface address

p2030 = 2 (Modbus RTU)

p2020 = 7, 19200 bit/s

Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC

Factory setting

SINAMICS G120X converter