Summary
Viessmann binding detects partially energy meters:
- Solar panels power is provided
- Power from grid is NOT provided
Installation
2 energy meter E380-CA Connected to a Vitocal 222-S as shown on this schematic
The 2 energy meters are correctly comminating through the CAN bus, values are correctly reported as shown on the screen shot of the Vicare app:
Configuration
Software:
- openHAB 5.2.3
- Viessmann Binding 5.2.3
- OS: Ubuntu 24.04
Things:
- Bridge: Viessmann Gateway TCU301_Vitocal
- Viessmann Device HEMS. Channels:
- viessmann:device:xxxxxxxxx:xxxxxxxxx:HEMS:ems-heating-rod-connection-point
- viessmann:device:xxxxxxxxx:xxxxxxxxx:HEMS:ems-hoca-features-tariff-based-financial-optimization#active
- viessmann:device:xxxxxxxxx:xxxxxxxxx:HEMS:ems-kpi#self-consumption
- viessmann:device:xxxxxxxxx:xxxxxxxxx:HEMS:ems-kpi#calculation-status
- viessmann:device:xxxxxxxxx:xxxxxxxxx:HEMS:ems-kpi#autarky
- Viessmann Device hems-0. Channels:
- viessmann:device:xxxxxxxxx:xxxxxxxxx:hems-0:photovoltaic-installed-peak-power
- viessmann:device:xxxxxxxxx:xxxxxxxxx:hems-0:photovoltaic-production-current
- viessmann:device:xxxxxxxxx:xxxxxxxxx:hems-0:photovoltaic-status#status
Expected behavior
As the photovoltaic production (yellow line above) is provided by viessmann:device:xxxxxxxxx:xxxxxxxxx:hems-0:photovoltaic-production-current, I would expect a grid supply (grey line above). Data is available since autarky is based on this value.
I tried to add manually a hems-1, but no working.
Anyone with the same problem and solved it ?