Hello - I am integrating my Cerbo GX with Home Assistant via Modbus-TCP. Overall it works very well, pulling data from my BMV-712 and my MPPT.
I have version 2.60 of the modbus-TCP spreadsheet, and it lists Battery Time to Go (System), address 846 as being in seconds. This does not appear to be the case, when I did the conversion to days/hours/minutes in Home Assistant the time to go number was much lower than what is being seen on the BMV's display. After some trial and error I found that with the BMV maxed out at 240.0 hours the register showed 8640. So 1 unit on the register equals 1/36th of an hour apparently. Re-doing my conversions based on that works great and the BMV and Home Assistant are now in lockstep.
I am not sure what the reasoning behind 1/36th of an hour being a unit is, but perhaps the spreadsheet should be updated.
Thanks - loving the products overall. I only wish my Orion Tr DC-DC had a ve.direct port on it so I could monitor that too.
