I have one tag for ambient temperature and the tags for my devices functional temperature. Based on that I want to calculate daily running uptime (percent) for my devices using TimeGT function (as when the machines running temperature is higher than ambient temperature with minimum 2 units).
Ex: TimeGT(/Machine temperature tag'-'ambient temperature tag','-1d','*', 2)/86400*100
The expression above didn't work as is not meant to work for tags differential values
I know that I can generate the differential artificial tags but maybe it is one another way to calculate ( avoid generating large number of artificial tags)