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Smart Meter P1 2 values
Posted: Tuesday 25 March 2025 11:22
by Johan1974
Hello,
I have been getting two values in the reading of my p1 smart meter since today. (3 phases) Both a return value (-100 Watt) and a consumer value (+200 Watt). Normally I got 1 calculated value. I have not done an update of domoticz.
I would like to see a calculated value again, positive or negative.
Re: Smart Meter P1 2 values
Posted: Tuesday 25 March 2025 11:31
by waltervl
Not updated? What is your version. How do you read the P1 data?
If you have a 3 phase connection it for a long time (I have never seen different) shows the delivery and usage seperately if there is difference over phases
See for example the screenshot from 2019 in the wiki
https://wiki.domoticz.com/Dummy_for_vir ... mart_meter
Re: Smart Meter P1 2 values
Posted: Tuesday 25 March 2025 13:44
by Johan1974
I have had a 3-phase connection for 1 year, before that a 1-phase. Until yesterday I only had 1 value. Negative or positive. The value was calculated. But since today there are two visible. I use a version from March 2024, I have just updated it now, to see if I got 1 value again, but no. I read the P1 meter with a USB cable (P1 to USB) If I understand it, it is therefore not possible to get it back to the old one.
Re: Smart Meter P1 2 values
Posted: Tuesday 25 March 2025 16:51
by waltervl
Johan1974 wrote: ↑Tuesday 25 March 2025 13:44
I have had a 3-phase connection for 1 year, before that a 1-phase. Until yesterday I only had 1 value. Negative or positive. The value was calculated. But since today there are two visible. I use a version from March 2024, I have just updated it now, to see if I got 1 value again, but no. I read the P1 meter with a USB cable (P1 to USB) If I understand it, it is therefore not possible to get it back to the old one.
For a 1 phase it is always 1 value. For a 3 phase you could get a mixed value. If all phases are using or delivering you see only 1 value.
I have no clue why you suddenly see something different with 3 phase. Perhaps something has changed in your electrical setup? Added solar panels or solar panels broke down on 1 phase?