Welion Hybrid Solar Inverter

I just took delivery of a Welion Hybrid Solar Inverter Model WE-HY 4.2kW Eco and I would like to integrate this into my HA. I have integrated inverters like Epsolar/Epever and SRNE in the past and they work well.

Welion team has not provided any info in the manual except that it has a Rs485 port for BMS and Rs232 for wifi monitoring. This does not help at all. Any info I can get from anyone with Welion inverter will be appreciated.

Information like pinout for the rj45, communication protocol (modbus e.t.c)

Here is the inverter Welion hybrid inverter