(* @PATH := '\/Functions_Collection' *)
(* @SYMFILEFLAGS := '0' *)
FUNCTION FeedForward : REAL	(* If Function returns -1 means Error *)
VAR_INPUT
	i_Flow			: REAL ;	(* Liquid Flow in l/min *)
	i_KFF			: REAL ;	(* Adjusting parameter *)
	i_Delta_P		: REAL ;	(* Delta Pressure: Friction Losses Across the Valve *)
END_VAR
VAR
END_VAR
(* @END_DECLARATION := '0' *)
IF i_Delta_P >0 THEN
	FeedForward := LIMIT(0, i_Flow * i_KFF / SQRT(i_Delta_P), 100) ;
ELSE
	FeedForward := -1 ;
END_IF

END_FUNCTION