As a newcomer to OpenHAB, I’m excited to dive into the world of smart home automation. My latest project involves integrating the Wavin AHC 9000 floor heating controller (also known as Jablotron AC-116) into my OpenHAB setup. This controller uses a Modbus RTU interface, which is typically used by an optional display unit for managing weekly schedules and special modes. I’ve managed to get some basic communication working using Python and an FTDI-based USB-to-RS485 adapter, but I’m hitting a snag with the non-standard function codes and register addressing that the controller uses. I’d love to hear from anyone who has experience with similar setups or knows of existing bindings that handle multi-zone heating systems. For now, my goal is to at least read the room temperatures into OpenHAB, and eventually, I’d like to be able to adjust setpoints. If anyone has tips or resources, I’d be incredibly grateful! 