question

snoobler avatar image
snoobler asked

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

When I select PV current in a custom widget:


1685569916752.png


I get:


1685569962167.png


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

1685570028154.png


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 ControllersVRM
1685569916752.png (56.5 KiB)
1685569962167.png (23.6 KiB)
1685570028154.png (62.5 KiB)
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snoobler avatar image snoobler commented ·

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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1 Answer
Guy Stewart (Victron Community Manager) avatar image
Guy Stewart (Victron Community Manager) answered ·

Hi @snoobler,

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 avatar image snoobler commented ·
Thanks for the clarification!
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