Pv_isolation_resistance Unavailable

[edautz]

In HA 2023 core-2023-7.1

After enabling the sensor.Pv_isolation_resistance on the SMA integration. It gives the state Unavailable.

When running example.py on my RPI4 of your pysma repository:

python3 example.py https://192.168.X.YYY installer XXXXXX | grep pv_isolation_resistance DEBUG:pysma:Adding sensor pv_isolation_resistance (6102_00254F00_0) DEBUG:pysma.sensor:Sensor pv_isolation_resistance: Will be decoded with * | [0][0].val from {'1': [{'val': 2923413}]} pv_isolation_resistance 2923.413 kOhm pv_isolation_resistance 2923.413 kOhm pv_isolation_resistance 2923.413 kOhm pv_isolation_resistance 2923.413 kOhm pv_isolation_resistance 2923.413 kOhm

I see the correct value.

current_l1 1.147 A current_l2 current_l3 current_total 1.147 A daily_yield 289 Wh frequency 50.02 Hz grid_apparent_power 264 VA grid_apparent_power_l1 264 VA grid_apparent_power_l2 grid_apparent_power_l3 grid_power 181 W grid_power_factor 0.874 grid_power_factor_excitation Overexcited None grid_reactive_power 100 var grid_reactive_power_l1 100 var grid_reactive_power_l2 grid_reactive_power_l3 grid_relay_status Closed None insulation_residual_current 10 mA inverter_condition Ok None inverter_power_limit 5000 W inverter_system_init Yes None operating_status_general Activated None power_l1 181 W power_l2 0 W power_l3 0 W pv_current_a 0.51 A pv_current_b 0.515 A pv_gen_meter 10075.194 kWh pv_isolation_resistance 2923.413 kOhm pv_power 181 W pv_power_a 134 W pv_power_b 131 W pv_voltage_a 263.38 V pv_voltage_b 256.16 V status Ok None total_yield 10075.194 kWh voltage_l1 230.44 V voltage_l2 voltage_l3

I see also insulation_residual_current 10 mA This sensor is not present in HA.

python3 example.py https://192.168.X.YYY installer XXXXXX | grep insulation_residual_current DEBUG:pysma:Adding sensor insulation_residual_current (6102_40254E00_0) DEBUG:pysma.sensor:Sensor insulation_residual_current: Will be decoded with * | [0][0].val from {'1': [{'val': 10}]} insulation_residual_current 10 mA insulation_residual_current 10 mA insulation_residual_current 10 mA insulation_residual_current 10 mA insulation_residual_current 10 mA

What could be wrong?

[edautz]

I see in the file definitions.py line 85-90 for pv_isolation_resistance an other kind of formatting and an extra comma in line 90

Line 90: enabled=False,

and in line 95 for the insulation_residual_current 6102_40254E00_0 instead of 6102_40254E00

could that be the problem?

[edautz]

Made modificaties in my test HA container for the definitions.py file. After starting the patched container both sensors could be enabled and produce the correct output.

It would be nice to correct this file in this repo for future HA versions.

Created PR to merge proposed changes.

[rklomp]

Can you provide debug logging while reproducing the issue? Turn on debug in the configuration.yaml and than restart HA.

logger:
  default: info
  logs:
    homeassistant.components.sma: debug
    pysma: debug

[edautz]

Added the pysma debug log from one of my unpatched HA production systems.

pysma_debuglog.zip

[rklomp]

I don't see 6102_40254E00 in the reply from /dyn/getAllParamValues.json or /dyn/getAllOnlValues.json. That's why the sensor is not loaded. See also https://github.com/kellerza/pysma/blob/master/pysma/__init__.py#L408

I don's see why your change in #123 would fix that. Could you send the same debug log in an instance that is working correctly?

[edautz]

I saw I made a mistake in my comment.

Should be 6102_40254E00_0 instead of 6102_40254E00 (and corrected the comment).

So I changed 6102_40254E0 to 6102_40254E00_0 and the formatting in the definitions.py file. Implementated on one of my production system. After the restart with the patched container I had also to trick the integration, by fooling it as i try to installed it again, to activate the changes.

I will provide you with a new debug log on the patched production system.

[rklomp]

Changing 6102_40254E00 to 6102_40254E00_0 should not make any difference. As _0 is default.

[edautz]

pysma_debuglog_patched.zip

The debug logging of the patched correct working system.

I changed in definitions.py the pv_isolation_resistance and insulation_residual_current in a onliner:

pv_isolation_resistance = Sensor("6102_00254F00_0", "pv_isolation_resistance", unit="kOhm", factor=1000, enabled=False)

insulation_residual_current = Sensor("6102_40254E00_0", "insulation_residual_current", unit="mA", enabled=False)

and that worked. It is maybe related to my invertor type and firmware version?

[rklomp]

In both logs there is a difference between the data returned by /dyn/getAllOnlValues.json.

In the "working" situation you are using the installer account and have more permissions. Thus having access to the pv_isolation_resistance sensor.

[edautz]

Allright.

My mistake.

Sorry for the trouble.