Trannergy MQTT

MQTT client for Trannergy solar inverter (PVL5400). Written in Python 3.x This program might also work for Ginlong and Omnik inverters. The inverter has to be connected to the LAN network where this script is running.

Includes Home Assistant MQTT Auto Discovery.

Usage:

• Copy systemd/trannergy-mqtt.service to /etc/systemd/system
• Adapt path in trannergy-mqtt.service to your install location (default: /opt/iot/trannergy)
• Copy config.rename.py to config.py and adapt for your configuration (minimal: mqtt ip, username, password)
• sudo systemctl enable trannergy-mqtt
• sudo systemctl start trannergy-mqtt

The are 2 clients integrated:

TCP CLIENT

• Works with a specific set of wifi enabled inverters
• You need to have the wifi s/n
• Ability to read values every few seconds

LISTEN Client

(I could not think of a better name)

• Inverter will broadcast every 5 minutes all parameters
• You have to configure the inverter; in this example, 192.168.1.48 is my Raspberry Pi

Use http://mqtt-explorer.com/ to test & inspect MQTT messages

Requirements

• paho-mqtt
• python 3.x

Tested under Linux; there is no reason why it does not work under Windows.

Licence

GPL v3

Versions

1.2.6

• Exit on Socket Connect error (and systemd will restart)

1.2.5:

• Exit after maxretries to connect to inverter (and systemd will restart)

1.2.4:

• Fix exit code (SUCCESS vs FAILURE)

1.2.2:

• Initial version on github