INTEGRAL (FB)¶

FUNCTION_BLOCK INTEGRAL

determines approximately the integral over time.

Example: Function block in FBD

InOut:

Scope	Name	Type	Initial	Comment
Input	`IN`	`REAL`		Input value
	`TM`	`DWORD`		Time since last call in msec
	`RESET`	`BOOL`		`TRUE`: `OUT` is set to zero and `OVERFLOW` to `FALSE`
Output	`OUT`	`REAL`		Value of the integral. This is done by summing all part integrals `IN * TM`
Output	`OVERFLOW`	`BOOL`	FALSE	`TRUE`: The value of `OUT` is out of range of REAL variables. he function is blocked till it is new initialised by input `RESET`.