pyFroniusReg 0.2.2

A library to make interacting with Fronius inverters and storage systems simpler

pyFroniusReg

The aim of this python library is to provide some nice to use abstractions to interact with Fronius(tm) solar inverters and storage systems over ModBus. It is tested on a Gen24 Primo 5kW system with an attached BYD battery storage system using 'float' mode of the sunspec ModBus over TCP protocol. Some testing has been done in int&sf mode.

Installation

Currently you can grab the .whl from the releases page. I'll figure out PyPI addition eventually

Examples

check_peak.py: Designed to be run from a cron job to check if we have enough storage to run the house for the peak pricing periods.

force_charge.py: Use the library to force my system to charge at 2.5kW

read_regs.py: Use the library to read some relevant registers from the non-storage inverter

read_regs_storage.py: use the library to read some relevant registers from the storage inverter

reset_charge.py: Use the library to set my storage system back to defaults

Acknowledgements

A lot of ideas and some orignating code came from: https://github.com/oscarknapp/Fronius-Gen-24-Modbus-Integration/tree/main

Special thanks to VK2TTY <@[e-mail]> for their generous assistance in bringing me up to speed with a more pythonic way of doing things!

Legal

pyFroniusReg, a python library for interacting with Fronius inverters Copyright (C) 2024 Paul Warren

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License along with this program. If not, see https://www.gnu.org/licenses/.

Froinus(tm), Symo(tm), Primo(tm), Tauro(tm) are tradmarks of Fronius International GmbH who have no involvement in this project.