Incorrect assignment of the 2nd WEZ values and missing data

[tiktak29]

Describe the bug
I am using the weishaupt_modbus integration for the Weishaupt WAB 14.
As the second heat generator (2nd WEZ), an electric heater with three stages is installed in the flow line.
In Home Assistant, the values for the 2nd WEZ are not assigned correctly, and some values are missing.

Expected behavior
In the Weishaupt Modbus documentation, additional data points are listed, and it might be possible to include these as well.

Screenshots

Desktop (please complete the following information):

Additional context
Add any other context about the problem here.

[MadOne]

code

What additional data points? We have them all (even more).

Furthermore there are some errors in the weishaupt modbus documentation. Please compare the values to the values displayed on the heatpump.

[tiktak29]

Thank you very much for the quick response.

Regarding the additional data points, I was only referring to the data points for the 2nd WEZ.
Of course, the weishaupt_modbus integration contains many more data points than those listed in the official Weishaupt Modbus documentation.
Sorry, that was my mistake — I probably described it too vaguely.

The assignment of the sensors for the 2nd WEZ in Home Assistant does not fully match the values shown on the heat pump’s display.
It is possible that the assignment depends on the type of electric heater and may be correct for other configurations.
I have an electric heater with three stages: E1 as the first stage, E2 as the second stage, and the 2nd WEZ as the third stage.

These sensors show different values in Home Assistant compared to the heat pump display:

sensor.wh_2_warmeerzeuger_betriebsstunden_e1 shows 0h in Home Assistant, but 2h on the heat pump display.

sensor.wh_2_warmeerzeuger_betriebsstunden_e2 shows 28h in Home Assistant, but 0h on the heat pump display.

These sensors are correct and show identical values in Home Assistant and on the heat pump display:

sensor.wh_2_warmeerzeuger_schaltspiele_e_heizung_1

sensor.wh_2_warmeerzeuger_schaltspiele_e_heizung_2

These sensors are not shown in Home Assistant, but they do appear on the heat pump display. Logically, they might correspond to the following names:

sensor.wh_2_warmeerzeuger_betriebsstunden_2_wez is missing in Home Assistant, but shows 1h on the heat pump display.

sensor.wh_2_warmeerzeuger_schaltspiele_2_wez is missing in Home Assistant, but shows 1h on the heat pump display.

I hope my explanation is now clear enough.

Thank you very much for the great work and for the weishaupt_modbus integration.

[yahoogreg]

Hi Mad,
I can confirm what tiktak29 said. Since the software update on my WSB10 during a service by Weishaupt, the two registers 34103 and 34106 have been swapped.
I simply adjusted the two registers in the hpconst.py file accordingly, and now everything is working properly again.

[MadOne]

Well this is a bad situation since if we swap it, it is false for everyone without the newest firmware update.
And a firmware update is sadly only possible through weishaupt service.