Opentherm gateway general questions

[eggn1n3]

Hi all,

I have already read a lot about the Opentherm Gateway, but I still have some questions. Hopefully you can help me:

1. Can you read the temperature, using the gateway, that has been entered into the thermostat? So if someone changes the temperature using the thermostat you can detect this.
2. I read you can connect an outside temperature to the gateway, but is it also possible to use your own (internal) temperature sensor and send the values to the thermostat?
3. Is there a list that shows all the possible data id's?

Thanks!

[hvxl]

1. Depends on the thermostat. Some thermostats report the setpoint, others don't. Check the equipment matrix for thermostats that send MsgID 16.
2. Yes.
3. Take a look at the opentherm specification (version 2.2 is available on line somewhere).

[eggn1n3]

Great, thanks for your answers!