After the virtual feed be available, I define the add of two variables.
In the feeds I can see the sum of the feeds correct, but in the graphical mode, the value of the virtual feed sum is incorrect when I chose the daily graph scale.
It’s possible tho exist an error in graph processing or I have incorrects parameters in virtual feed ?
The following pictures show the variables used:
This graph represent the day cost of electricity based in multi-tariff. The stacked bars represent the cost of the two tarifs. The line is the sum of this two feeds. They are not identical!
But when I see in the feeds interface, the value is correct:
When use the graph interface without select daily scale, the values of virtual feed are ok. When chance the scale to daily, the virtual feed values change to something… strange.
Scale change to daily ->
I already create two types of virtual feeds (realtime and daily) but the problem is the same.
Someone can help ?