Determine the duration of short events without rounding to index resolution
Certain events may be too brief to register at all, and rounding to the index resolution may not provide sufficient accuracy – for instance, when an event lasts for 155 seconds but is approximated as 120 seconds.
Create a formula that is 1 when the criterion is true, and 0 otherwise e.g., for identifying temperature peaks within the reactor’s temperature data.
if(Temp>=123.1,1,0)
Variable mapping:
Temp = Tag of interest e.g. reactor temperature
Establish an integration within the formula tag by employing aggregation, wherein the integration period aligns with the duration of the longest event, ensuring that the entire event is always integrated.
Tag to aggregate: formula tag above
Operator: Integral
Unit of the source tag: e.g., per minute
Direction: e.g., Backward
Aggregate per e.g., 10 minutes
Perform a value-based search based on integrals greater than 0.
Add a calculation to determine the maximum integral value on search results. You now have accurate measurements of event durations as calculations on your results. This grants you precise measurements of event durations, now accessible as calculations derived from your results.
