Formulas

Calculating the output OUT

With each execution the output OUT is calculated with the following formula:

If OUT exceeds the threshold value thld:

Explanation of formula variables

Meaning of the variables in the formulas above:

Variable	Meaning
	time elapsed since last block execution
	Value of the output OUT at the end of the previous execution of the controller

Output of the integral results

In consideration of this principle, the function block can issue three integral results:

Result	Explanation
Partial collective index OUT	indicates the integral result of input IN from the last threshold value overflow.
cter	Frequency of achieving the threshold value
Collective register (outc)	corresponds to the integral result of the input IN since the beginning of the integral invoice This counter will be updated at every execution via the following formula: