I have configured EmonCMS to send data to EmonCMS through the charger’s ui and I have 2 problems:
- The wh is sent (and received) every few seconds as you would expect but the EmonCMS input value does not change until I unplug the car.
- When it does update, the wh is about 10% lower than a calibrated meter supplying EmonEVSE
The charger is normally sleeping except between 00:30 - 04:30.
Note it does not send the correct wh value even when awake/charging - it only sends the correct value when I unplug…
Is this normal - if so why?
Does the EmonEVSE wh calculation assume 230V or use actual voltage? I ask as we are typically running 10% higher than 230V and this could account for the wh error.