SolarEdge SE2200 (HD-Wave) works, but seeing 65535 readings

[KHoos]

I am trying this script with a SolarEdge SE2200 (aka HD-Wave) inverter and it works, but I'm seeing a weird thing currently: 6553.5 Volt DC. My guess is that value '65535' has a meaning in modbus/sunspec given the fact that this value returns a few times for unsupported readings, but that is nothing more than a guess. And to be precise: it's currently dark so the inverter is sleeping. I'll try again tomorrow when sunlight returns.

`
koos@gosper:~/src/sunspec-monitor$ ./sunspec-status -d -m 0 -v se-schuur
INVERTER:
Model: SolarEdge SE2200
Firmware version: 3.2434
Serial Number: xxxxxxx

      'C_DeviceAddress' => 1,
      'C_Manufacturer' => 'SolarEdge ',
      'C_Model' => 'SE2200',
      'C_SerialNumber' => 'xxxxxxx',
      'C_SunSpec_DID' => 1,
      'C_SunSpec_ID' => 'SunS',
      'C_SunSpec_Length' => 65,
      'C_Version' => '0003.2434'
    
        Status: SLEEPING

Power Output (AC): 0 W
Power Input (DC): 0 W
Efficiency: 0.00 %
Total Production: 3514.256 kWh
Voltage (AC): 239.20 V (49.98 Hz)
Current (AC): 0.00 A
Voltage (DC): 6553.50 V
Current (DC): 0.00 A
Temperature: 17.91 C (heatsink)

      'C_SunSpec_DID' => 101,
      'C_SunSpec_Length' => 50,
      'I_AC_Current' => 0,
      'I_AC_CurrentA' => 0,
      'I_AC_CurrentB' => 65535,
      'I_AC_CurrentC' => 65535,
      'I_AC_Current_SF' => -2,
      'I_AC_Energy_WH' => 3514256,
      'I_AC_Energy_WH_SF' => 0,
      'I_AC_Frequency' => 49978,
      'I_AC_Frequency_SF' => -3,
      'I_AC_PF' => 0,
      'I_AC_PF_SF' => 0,
      'I_AC_Power' => 0,
      'I_AC_Power_SF' => 0,
      'I_AC_VA' => 0,
      'I_AC_VAR' => 0,
      'I_AC_VAR_SF' => 0,
      'I_AC_VA_SF' => 0,
      'I_AC_VoltageAB' => 2392,
      'I_AC_VoltageAN' => 65535,
      'I_AC_VoltageBC' => 65535,
      'I_AC_VoltageBN' => 65535,
      'I_AC_VoltageCA' => 65535,
      'I_AC_VoltageCN' => 65535,
      'I_AC_Voltage_SF' => -1,
      'I_DC_Current' => 0,
      'I_DC_Current_SF' => 0,
      'I_DC_Power' => 0,
      'I_DC_Power_SF' => 0,
      'I_DC_Voltage' => 65535,
      'I_DC_Voltage_SF' => -1,
      'I_Event_1' => 4294967295,
      'I_Event_1_Vendor' => 0,
      'I_Event_2' => 4294967295,
      'I_Event_2_Vendor' => 4294967295,
      'I_Event_3_Vendor' => 4294967295,
      'I_Event_4_Vendor' => 0,
      'I_Status' => 2,
      'I_Status_Vendor' => 0,
      'I_Temp_Sink' => 1791,
      'I_Temp_Sink_SF' => -2

`

[KHoos]

Did a search for modbus sunspec 65535 and found at https://sunspec.org/wp-content/uploads/2015/06/common-models-final.pdf that it means 'not implemented'. So I guess the DC voltage is hiding somewhere else in the modbus data for this model.

[KHoos]

On the return to sunlight the readings of the DC voltage work. So 65535 should really be interpreted as 'currently not available' which would require some changes
Voltage (DC): 277.10 V Current (DC): 0.00 A