CTD_UDINT

PROGRAM CTD_UDINT_DEMO
  VAR
     BOOL1,BOOL2,BOOL3: BOOL;
    UDINT1,UDINT2: UDINT;
   FB:CTD_UDINT;
  END_VAR
    FB(CD:=BOOL1,LD:=BOOL2,PV:=UDINT1,Q=>BOOL3,CV=>UDINT2);
END_PROGRAM

Description

The block acts as a counter counting down to zero from the preset value pv.

Input	Type	Description	Default value
CD	BOOL	Rising edge counts one down	False
LD	BOOL	Sets the counter to its initial value pv	False
PV	UDINT	Initial value of the counter	0

Output	Type	Description
Q	BOOL	State when the counter finished counting (counting finished: q=true).
CV	UDINT	Current value of the counter

CTD_UDINT

Block name

ST call

Description

Inputs

Outputs

Application example