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

Modbus Ethernet Communication

4.1 Description

4.1 Description
The Modbus™ Ethernet communication interface is based on the TCP/IP protocol. All
addressing is based on IP addresses.
The drive always acts as a Modbus™ slave. This means that the drive does not initiate dialog
on the Modbus™ Ethernet network. Rather, it listens to and then responds to the Modbus™
Ethernet master.
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. All requests are sent via register port 502.
Refer to Section
To enable dual network functionality, this protocol requires an additional Anybus™ module.
See also
Functions (Page 102)
4.1.1

Network Configuration Options

This section provides information on the configuration options for the Anybus™ Ethernet
Modbus™module for dual network functionality.
● Network 1 communication can be supported by two methods, which are as follows:
– CPU: Ethernet Modbus™ communication is only valid for NXpro software version 6.1
– Anybus™ Ethernet module ethernet communication is supported via an Anybus™
● Network 2 communication is supported via an Anybus™ Ethernet module as described in
the following section.
Note
The CPU Ethernet connection will only support Ethernet Modbus™ for Network for NXGpro
software version 6.1 and earlier. It cannot be used for Network 2.
74
Functions for function codes supported by the NXGpro Control.
and earlier and is supported via the NXGpro CPU Ethernet connection
Ethernet module connected to the Network 1 connector of the NXGpro control. The
benefit of this method is that the CPU of the drive cannot experience any interrupt or
associated issues.
NXGpro Communication
Function Manual, AB, A5E33486415A