BK7231N openBK - Change energy display in kWh/Wh, calibration & statistics manually

Hello Forum,

This is my first post here. Hope I'm in the right place with my request. I have flashed 2 AUBESS Power Monitor Switch with openBK (BK7231N/Module: CBU). Everything is running smoothly so far. The HW also works well so far. I have also calibrated both switches with a 75 watt light bulb.
But now to my special. I use one AUBESS for an inverter with 2.5 kW output and 16 panels on phase 1, and the second with a 3.7 kW inverter and 24 panels on phase 2.
The mains input of the AUBESS is on the mains side, the inverters are connected instead of the load (luminaires). The relays are switched on and the measurement of the values also works. I have also activated flag 40 in the flags so that the values are also output in kW instead of W in the MQTT topic. Since then, "Energy-Total" has also been displayed in kWh on the AUBESS start page. However, all other values are still displayed in Wh.

Is this a missing feature or can I set it somewhere?
Can I change the statistics values ( Energy *) manually somewhere?
Can I change the calibration values retrospectively without having connected a reference load?

What I find good about AUBESS with openBK is that the direction of the current is probably also taken into account in the energy measurement, because in this configuration the monitor displays 0.0 watts, but a value for "VA" or "var". This is the physically correct unit for generators (which is what a PV system is in the broadest sense). This was/is probably not always the case.

But what is really irritating is the following. The two inverters have a ratio of 2:3, which is also reflected in the energy values. What doesn't fit at all, however, is the display of the current value. This is approximately the same for both inverters. As the energy values are displayed according to the 2:3 ratio, the VA and current values do not appear to be displayed correctly. They differ significantly from the displays in the WR. Deviation factor 1.5 to 2.5, so not stable either.




I know, a lot of info and questions, but maybe someone can explain?

Thanks in advance for any answers.
Herby


AI: Exactly which openBK version have you installed on the AUBESS switches (e.g. version number, fork if applicable)?
1.18.103
1.18.104
AI: How did you carry out the calibration in detail - only with the 75W bulb, or also with other loads, and how exactly did you do it?
As described under openBK