Hello everyone.
I realize that Controme isn’t specifically aimed at solar heat. However, since it already controls the radiator thermostats and the oil boiler, as well as the water-bearing stove in the living room, it makes sense to also control the speed of the solar pump via the boiler room gateway.
Unfortunately, there is no way to log the heat output of the collectors. Although the temperature is recorded on the solar flow and return, and the difference is therefore known. So only the flow rate would be needed to calculate the amount of heat supplied.