I have Venus OS Large running on a Raspberry Pi connected via a VE.Direct USB cable to my 3000VA Phoenix 12V inverter. It’s an off-grid system. I can read the inverter voltage and current output in node-red and multiply them to output the power output to a gauge on the node-red dashboard. The current resolution is 0.1 Amps so the power output resolution is only 23 Watts. I want a more accurate measurement as good as that shown on the VRM dashboard to the nearest Watt. The inverter power output node always outputs zero though. This looks like a bug. Any advice for how to fix this? Thanks.
I should also add that I have a 12V 500VA Phoenix Smart inverter connected to the same battery bank and Raspberry Pi and the exact same issue is present with that one.