XPulseR

XPulseR (FB)

FUNCTION_BLOCK XPulseR

Short description

Generation of a single pulse with adjustable duration and reset capability.

Representation

Interfaces

Inputs

Name	Data type	Value range	Initial value	Function
xIN	BOOL			Binary input (FALSE > TRUE)
tPT	TIME		T#1s	Duration of the output pulse in s
xReset	BOOL			Binary reset input (FALSE > TRUE)

Outputs

Name	Data type	Value range	Initial value	Function
xQ	BOOL			Pulse output (FALSE = Off, TRUE = On)
tET	TIME	0 … tPT		Current duration of the pulse at xQ in s

Setpoints / parameters

Name	Data type	Value range	Initial value	Function
xTest	BOOL		FALSE	Binary test input (FALSE > TRUE)

Function description

General

At the pulse output xQ is after each rising edge (FALSE > TRUE) at the binary input xIN and/or at the setpoint / parameter xTest a pulse with a duration tPT generated (precondition: xReset = FALSE). Each rising edge (FALSE > TRUE) at the reset input xReset resets the pulse output xQ immediately (= FALSE). The edge detection (FALSE > TRUE) on the inputs xIN or xTest has a higher priority compared to the edge detection on the input xReset (FALSE > TRUE). This results in the fact that despite simultaneous edge detection a pulse with a duration tPT is generated at the output xQ . The setpoint / parameter xTest is cyclically deactivated (= FALSE).

CODESYS

InOut:

Scope	Name	Type	Initial
Input	xIN	BOOL
Input	tPT	TIME	TIME#1s0ms
Input	xReset	BOOL
Input Const	xTest	BOOL	FALSE
Output	xQ	BOOL
Output	tET	TIME