I have been using Solax inverters with Victron for several years now. They are cheap, reliable so far, support zero feed-in, and are available in my area. I have already installed two systems using them on the AC-Out of Quattros in three phase. All of this works fine, except the only way to see the power produced in VRM is with a grid meter.
However, these inverters support Modbus TCP, and they even show up in the device list via the sunspec PV inverter scanning capabilities of the Cerbo GX.
The only problem is that the data is not populating, probably because the device is not compliant with the sunspec protocol. And because the Cerbo GX is connecting immediately via the PV inverter function, I’m not able to connect with other tools as the inverter only connects with one controller at a time.
Solax Power X1-SMART-G2 single phase inverter Modbus-RTU comms protocolV1.2.pdf (1.4 MB)
I have the protocol and would like to add support for this type of inverter. What is the best way to add support for viewing (at least) the power output of these inverters? I know that I could make a Node Red flow to do the job, but I believe that would mean getting the Cerbo GX to ignore them as well since there can be only one connection to the Modbus TCP port. Plus it seems like other people might be able to benefit as well if there is support for these inverter. I am willing to do some programming, but I would need some pointers on where to find the appropriate files.