fredlcore

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Hm, that's strange, also because there is no other communication on the bus. Normally, the display (which identifies as "DISP" in addition to "HEIZ" and "LAN" which is the heater...

It's the same with me, and both are part of the BSB bus. Can you try and run the serial monitor log while you change one parameter to a different...

Sorry, I meant to change these parameters on the display and have the serial monitor running while you change it there...

Just the temperature is enough. I know you changed the time in the previous log, but since nothing of that showed up in the monitor log, I wanted you to...

Yes, these are the "simpler" ones, unfortunately...

No, unfortunately, that is not strange at all. The controller (RVS21) is the authoritative device in all cases _except_ for the time and date settings. Since it works that you...

Yes, the important thing is that you have the serial monitor running when making all of these changes. I need to be able to see the telegrams that appear in...

Yes, it seems that the connector to which you have connected BSB-LAN is isolated from both the heating unit's display and the other room units. This is really strange and...

Ah, ok, the zone units are connected to the AVS55. It may make sense that these do not show up on the bus because the AVS55 is connected directly to...

I haven't found any documentation on this connector. If it measures around 12-15V you can safely try without breaking the adapter. Then you could try again and see if there...