In this document, Siemens provides a lot of information how status registers can be read/written via ModBus. These are then translated and sent via LPB to the connected heaters:
https://www.riello.com/spain/productos?action=download&id=20185704-00e586f9ff2ad720b7e34cd7e1399abb

If someone is using this ModBus Clip-In, we could see these LPB telegrams and identify what meanings they have and then use this information to generate new status parameters for BSB-LAN.
Therefore, everyone who can contribute, please join here!