Description; Network Configuration Options - Siemens SINAMICS PERFECT HARMONY GH180 Function Manual

Modbus Communication

3.1 Description

3.1 Description
The Modbus™ communication interface is a serial interface that operates at standard baud
rates up to 19.2 Kbaud. The 10-bit data frame consists of 1 start bit, 8 data bits (no parity) and
1 stop bit. These data parameters are fixed for the drive.
The drive always acts as a Modbus™ slave. This means that the drive does not initiate dialog
on the Modbus™ network. Rather, it listens to and then responds to the Modbus™ master (the
PLC).
Note
Only register-based read and write functions of the Modbus™ protocol are supported. These
functions are used to monitor and control analog and digital inputs and outputs of the drive.
Only the Remote Terminal Unit (RTU) format of the Modbus™ protocol is supported by the
NXGpro Control.
Refer to Section
See also
Functions (Page 64)
3.1.1

Network Configuration Options

This section provides information on the configuration options for the Siemens Modbus™
module for single or dual network functionality.
36
Functions for function codes supported by the NXGpro Control.
NXGpro Communication
Function Manual, AB, A5E33486415A