H3-15.0-Smart inverter Home Assistant with LAN port

I am attempting to integrate my FoxESS H3 inverter with Home Assistant and would like to confirm the supported connection options.

Specifically, I would like to know whether it is possible to use the inverter’s LAN port via a VONETS WLAN Bridge (VONETS WLAN Bridge 2.4 GHz Signal Repeater/WiFi Hotspot Extender/Wireless Ethernet Bridge/Signal Booster/RJ45 to WiFi Convert for DVR, Monitoring, IP Printer, Network Device VAP11G-300 : Amazon.com.au: Computers) to establish communication with Home Assistant. The integration I am attempting to use is foxess_modbus:
GitHub - nathanmarlor/foxess_modbus: FoxESS inverter integration. Connect directly to your FoxESS inverter (no cloud!) for real-time status and control.

Additionally, regarding the RS485 interface on my inverter, I am unable to see or identify any exposed RS485 ports. I would appreciate clarification on whether RS485 communication is supported on this model, and if so, where the port is located or how it should be accessed.

Any guidance on the supported communication methods or recommended configuration for Home Assistant integration would be greatly appreciated.


I also have a H3-15.0-Smart inverter. I can share my success with using VONETS to get IP connectivity for Modbus TCP. But I wasn’t successful with HomeAssistant.

I didn’t opt for RS485, but used Modbus over TCP. First I configured the VONETS device. Then under the inverter, I connected the VONETS device to G (LAN) and the USB port. I could then ping the inverter and connect to TCP port 502 (modbus). BUT unfortunately home assistant with the FoxESS inverter integration failed to read data. I tried some standalone Modbus tools to read the data, unfortunately they failed too.