GW20K-ET Some values are always 0 about goodwe

[mletenay]

I have just realized there are additional "CT2" meter registers at address 36047, 36049.
Will investigate ...

[Jan-Antos]

I have GW15K-ET. Same problem. Meter Total Energy reads always 0.
Also PV2 panels status is wrong (always reads "not connected"), PV1 string power is equal to PV power (but I have two strings), PV2 power always reads 0, but PV2 current and PV2 voltage reads ok.
If you set polling interval for 180sec or above, SEMS communication is restored

[t4e-dev]

Is there anything I can help to include these devices ?
Provide datagrams, or something like this ?

[DerBauch78]

GW15K-ET in my home and same for me here too.
The entity „Total energy export/import“ is working, but it seems that this is the oberall energy coming from the inverter. Could there be a way to calculate the meter total energy from theese values?

[mletenay]

It seems the ETT inverters use different modbus registers than ETU.
I can try to reverse engineer some data from mobile app again, but can't promise when or if possible at all ...

[mletenay]

We now have the manufacturer's description of modbus registers of ETT inverters and there are no relevant differences to ETU inverters. So the "meter" values should be read and decoded properly.
Couldn't it be something is wrong with your meter installation ?

[t4e-dev]

Sounds great!! Thanks a lot. Wish I could help :-)

[mletenay]

Library with the "CT2" was released and HACS integration was released as weel, hope it helps.