A2 and P1 feature classes also support resetting partial active energy and peak demand

[malakudi]

I have sent a pull request to fix the support of resetting partial active energy for A2 and P1 feature classes.
A9MEM1540 and A9MEM1561 that I use offer this functionality.

They also offer functionality to reset peak demand. I have tested and also works. But I didn't include this in the pull request because I can't find code that uses and displays this info. So resetting it will be useless. Maybe we should also add a sensor to display the peak demand information. In the gateway I get for example:

Max Peak Demand Total Active Power: 5.176 kW(Date/Time: 2026-01-12 at 02:11:59) so it gives the peak value in KW and when it happened. Resetting it goes to 0.0 KW with current date/time, so indeed reset peak demand works for A2 and P1 as well.

[Breina]

Thanks for the PR! Merged it in.

The peak demand is hidden in the entity PowerTagDemandActivePower, hidden in its extra state attributes.

Not sure what I was thinking putting this into feature class C though...

    @staticmethod
    def supports_feature_set(feature_class: FeatureClass) -> bool:
        return feature_class in [FeatureClass.C]

[malakudi]

@Breina I also added FeatureClass A1,A2 and P1 to the above PowerTagDemandActivePower class, but it doesn't give me what the gateway has recorded as peak demand. It is something else. And we are also missing the timestamp (when peak demand happened)

[malakudi]

PowerTagDemandActivePower returns the current demand which is an average of the last couple of minutes

For example. in my A9MEM1540 that controls the consumption of my ABB EV charger, after a couple of minutes at 11KW, it gives
Demand Total Active Power : 6.131 kW which is the same as reported by PowerTagDemandActivePower (and it rises as time passes and I keep consuming 11KW).

But there is also
Max Demand Total Active Power : 11.148 kW(Date/Time: 2025-11-29 at 12:03:47) with a timestamp

[malakudi]

According to Schneider manual, it is a configurable time average, with default interval of 10 minutes
"Power demand is calculated over a sliding block interval. Navigate to Settings > Devices > Global Configuration to set the interval duration from 1 to 60 minutes. The default value is 10 minutes."

[Breina]

I'm not sure from where else I can pull this data.

For PowerTag LInk:

And for Smartlink and PanelServer, these registers are undocumented (though they seem to return data).

That's all we've got to work with. :(