pysolarmanv5 2.3.0

A Python library for interacting with Solarman (IGEN-Tech) v5 based Solar Data Loggers

pysolarmanv5

This is a Python module to interact with Solarman (IGEN-Tech) v5 based solar inverter data loggers. Modbus RTU frames can be encapsulated in the proprietary Solarman v5 protocol and requests sent to the data logger on port tcp/8899.

This module aims to simplify the Solarman v5 protocol, exposing interfaces similar to that of the uModbus library.

The following Modbus RTU Function Codes are supported:

Modbus Function Code	Description	pysolarmanv5 Function
3	Read Holding Registers	read_holding_registers(register_addr, quantity)
4	Read Input Registers	read_input_registers(register_addr, quantity)
6	Write Single Holding Register	write_holding_register(register_addr, value)
16	Write Multiple Holding Registers	write_multiple_holding_registers(register_addr, values)

Details of the Solarman v5 protocol have been based on the excellent work of Inverter-Data-Logger by XtheOne and others.

Dependencies

pysolarmanv5 requires Python 3.8 or greater. pysolarmanv5 depends on uModbus.

Installation

For the moment, run the steps below. I will publish to PyPI in due course.

• git clone https://github.com/jmccrohan/pysolarmanv5.git
• cd pysolarmanv5
• pip install .
• See example code in examples

Contributions

Contributions welcome. Please raise any Issues / Pull Requests via Github.

License

pysolarmanv5 is licensed under the MIT License. Copyright (c) 2021 Jonathan McCrohan