Home Assistant Custom Component for reading data from SAJ Solar Inverters through modbus over TCP. This integration should work with SAJ R5, Sununo and Suntrio inverters.

SAJ R5 Inverters are also sold in The Netherlands as Zonneplan ONE inverters.

Implements SAJ Inverter registers from saj-plus-series-inverter-modbus-protocal.pdf.

Based on home-assistant-solaredge-modbus from @binsentsu.

This integration is available in the HACS default repository.

Search for "SAJ Inverter Modus" and install it.

After reboot of Home-Assistant, this integration can be configured through the integration setup UI

Connect a Modbus to Wifi device to the Modbus port of your SAJ Inverter. I use a Hi-Flying Elfin-EW11 (www.hi-flying.com/elfin-ew10-elfin-ew11).

Cable Layout for EW11A to SAJ Inverter:

Both connectors are RJ45.

EW11A settings:

Communication settings:

• Configure Tcp Server, choose a port number.
• Security: Disable
• Route as Uart

Serial port settings:

• Baudrate 9600
• Databit 8
• Stopbit 1
• Parity None
• Cli Disable
• Protocol Modbus