Hello everybody,
I need your help. Let me talking about the situation. I have a ESP32 linking with my Inverter. I can read a lot of sensor but unfortunately I can’t read the PV2 (dual mppt inverter), QPIGS2 return an error.
After discussion with @syssi, please see below the conclusion.
This is the interesting part from the log:
[18:48:31][D][uart_debug:158]: >>> "QPIGS\xB7\xA9\r"
[18:48:31][D][uart_debug:158]: <<< "(000.0 00.0 230.0 50.0 0391 0368 004 423 53.00 000 100 0032 00.1 090.3 00.00 00008 00010110 00 00 00010 0101\xBE\r"
[18:48:32][D][uart_debug:158]: >>> "QPIGS2h-\r"
[18:48:32][D][uart_debug:158]: <<< "(NAKss\r"
QPIGS is the command to request all details about the first MPPT. You can see a proper response here:
(000.0 00.0 230.0 50.0 0391 0368 004 423 53.00 000 100 0032 00.1 090.3 00.00 00008 00010110 00 00 00010 0101\xBE\r
The response to QPIGS2 (measurements of the second MPPT) is rejected:
(NAKss\r
In other words: Your inverter doesn’t provide any measurements using the PIP protocol. Please search for other issues of this repository/project. There are a lot of users having the same issue. If I remember correctly some inverter does support more than one protocol and may be you can query some details via Modbus too.
Unfortunately after one week searching on all forums, I can’t find a solution with the integration of PIPSOLAR and MODBUS. I think, I’m not alone in this situation and I will really appreciate your help.
In advance thanks.