Home Assistant & Econet (Plum) integration

I have a basic Home Assistant setup on a local raspberry Pi, previously I had been able to interrogate and write to my Air Soutce Heat Pump settings through Modbus settings, I have now changed Heatpumps to a Grant UK Heat pump which has an ecoNET24 controller made by Plum.

I’m looking for someone to code in the controller through the local hardwired connection to my Pi via a 485 adapter.

Essential is to be able to see all values including flow and return values and compressor frequencies as well as an option to write to certain values to alter points etc.

Initially looking to read only so any fees should be based on that only.