LCTU (FB)¶

FUNCTION_BLOCK PUBLIC LCTU

Increments a given value

(* Example declaration *)
LCTUInst : LCTU ;

(* Example in ST *)
LCTUInst(CU:= VarBOOL1, RESET:=VarBOOL2 , PV:= VarLWORD1);
VarBOOL3 := CTUInst.Q ;
VarLWORD2 := CTUInst.CV;

InOut:

Scope	Name	Type	Comment
Input	CU	BOOL	Rising edge: Incrementing CV by one
	RESET	BOOL	TRUE: Reset CV to 0
	PV	LWORD	Upper limit for incrementing
Output	Q	BOOL	TRUE if CV >= PV
	CV	LWORD	Current counter value