I have a MultiPlus-II 48/5000/70-50 GX and I am trying to set up my GoodWe inverter on the GX device.
At first I tried to use the dbus-mqtt-devices driver. I already had this driver set up with my DSMR P1 grid meter and this was working fine. But when I did the same for the GoodWe inverter data, the ESS assistant immediately stopped working (ESS tab showed something like "no assistant found"). The grid seemed to still be kept at 0W as expected for the ESS assistant so I guess only part of the assistant stopped working somehow? I tried several times and each time a reboot of the GX device fixed it, but re-adding the pv inverted caused it again.
After that I decided to get an ET112 as a quick fix. Installation went as expected and I could configure the meter as a PV inverter. But somehow I can't change the position. I can click on "AC Input 1". And then I can click on "AC Output". But when the interface goes back, the position is still on "AC Input 1". No error is shown or anything. It's somehow just not possible to change the position.
The dbus-mqtt-devices driver is still my preferred solution because then I can remove the ET112 from my distribution box which is already very crowded. So if anyone has an idea for a solution, I would love to hear it!
Where can I start debugging these issues? I have looked in /var/log and /data/log but couldn't find the things I was looking for.
On a side note, these are not the first issues I had with venusOS (firmware update broke everything for example) and I don't really like the idea of having such an unstable platform manage such important (and dangerous) hardware. Do more people have this experience? Or is the GX device in the MultiPlus-II an exception? Is a Cerbo (or maybe even a raspberry pi) a better option?
