
Originally Posted by
markclemens
Another thing you could do, if you are not interested in historical data older than a day, is to use triggered allocations.
At the end of each shift you can use a triggered allocation to write the current value to an internal variable for the closed shift. Using a mathematics variable (also again triggered) you can calculate the difference between the value from the currently closed shift and the previous closed shift, and display this value in a screen.
For each shift you would need an internal variable, an allocation, a trigger for the allocation, a mathematics variable (for the calculation) and a trigger (for the mathematics calculation)