Is there a trick to get PV current in a custom widget in VRM?

Question

question

snoobler asked May 31, '23

When I select PV current in a custom widget:

I get:

However, the standard MPPT widget reports both PV voltage and current:

Is this a bug, or am I doing something wrong?

I have tried all obvious options including the PV current from trackers 1 - 4.

MPPT Controllers VRM

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snoobler commented · Jun 01, 2023 at 01:55 PM

Something potentially of note, the standard MPPT widget lists "PV Voltage (V)" and "PV Current (A)"

In the custom widget list, "PV Voltage (V)" is present, but "PV Current" appears instead of "PV Current (A)"

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Answer 1 · 2023-06-05T05:04:13Z

Guy Stewart (Victron Community Manager) answered · Jun 05, 2023 at 05:04 AM

The PV current value is not currently stored in the database which is why it's not possible to graph it as a custom value.

The PV voltage and the PV power is stored, and they are used to calculate the current value shown in the non-custom widget.

So it's not just you, and for now it is not possible to do calculated values in custom widgets.

We will get that field removed as a selectable option though, it shouldn't be there.

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snoobler commented · Jun 05, 2023 at 05:18 AM

Thanks for the clarification!

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