SungrowModbusWebClient 0.3.2

A ModbusWebClient wrapper for talking to Sungrow WiNet-S Dongle via HTTP API

SungrowModbusWebClient

Drop in replacement for SungrowModbusTCPClient/ModbusTCPClient that uses Websockets and HTTP API requests to work around Sungrow disabling Modbus requests on WiNet-S Dongle.

Report Bug · Request Feature

About The Project

Access Modbus RTU via HTTP API call to Sungrow WiNet-S.

This uses HTTP requests to retrieve Modbus packets, add a header and then pass to PyModbus to parse like a standard Modbus RTU message

Class based on pymodbus.ModbusTcpClient, completely interchangeable, just replace ModbusTcpClient() or SungrowModbusTcpClient() with SungrowModbusTcpClient()

(back to top)

Built With

• Python3

Requires

• pymodbus>=2.4.0
• websocket-client>=1.2.1

(back to top)

Getting Started

Install via PIP, then if replace ModbusTcpClient() or SungrowModbusTcpClient() with SungrowModbusWebClient()

Installation

1. Install with PIP

   pip install SungrowModbusWebClient
   

(back to top)

Usage

For Solariot, open solariot.py

Add to the top: from SungrowModbusWebClient import SungrowModbusWebClient

Replace SungrowModbusTcpClient with SungrowModbusWebClient near lines 100 & 101

(back to top)

Tested

• SG7.0RT with WiNet-S Dongle
• SG10RT with WiNet-S Dongle

(back to top)

Building

python setup.py sdist
twine upload dist/*

(back to top)

License

Distributed under the GPL3 License. See LICENSE.txt for more information.

(back to top)

Contact

Project Link: https://github.com/bohdan-s/SungrowModbusWebClient

(back to top)

Acknowledgments

• solariot
• Sungrow-Modbus
• modbus4mqtt

(back to top)