Incorrect registers for weather control data (S1155)

[lewurm]

I've noticed that any values regarding weather forecast are always null:

nibe/nibe/data/s1155_s1255.csv

Lines 500 to 503 in 9dde26c

	Wind speed, weather forecast MODBUS_INPUT_REGISTER 960 10 5 0 0 0
	Humidity, weather forecast MODBUS_INPUT_REGISTER 961 10 % 5 0 0 0
	Temperature, weather forecast MODBUS_INPUT_REGISTER 962 10 °C 2 0 0 0
	Temperature, weather data (forecast) MODBUS_INPUT_REGISTER 963 10 °C 2 0 0 0

While in myuplink something like this is shown:

Does anyone get useful weather data?

[yozik04]

Interesting what they are using it for. Forecast for just 6 hours ahead does not give much if you have floor heating.
Check what registers are read in MyUplink.

[lewurm]

Interesting what they are using it for. Forecast for just 6 hours ahead does not give much if you have floor heating.

My understanding is that this is an improvment over controlling the heating power by the average outdoor temperature, as it's reacting better to drastic weather changes. But indeed the available information on this feature is quite modest.

I'd like to understand it better, that's why I started to poke at this. For the SPA (Smart Price Adaption) feature there is a Heating offset (SPA) register which shows what is happening behind the scenes, e.g. from last week:

There is a clear relationship between electricity price, this computed offset and the compressor frequency.

Ideally I would like to have something in similar vain for the weather feature, e.g. Heating offset (weather).

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Check what registers are read in MyUplink.

Interesting, I didn't know that modbus specs do show up when using MyUplink. Alas for those fields MDOBUS_NO_REGISTER is used as modbusRegisterType 🙁

So nothing can be done, or is there more to it?