We have any reservoir. And it have any movements: filling and draining.
We need to calculate mass of draining for a day.
How we can calculate in pi-system: PE or Totalizer subsystem or AF. And thise values must be stored in PI. We have parametres for mass from sensors.
I would be glad if I found any method to calculate dynamics, but i don know how.
I mean dynamics=M(i2)-M(i1)