Pulse generator
- Block name
- ST call
- Library
- Version
- Description
- Inputs
- Outputs
- Function
- Application example

Pulse generator

Block name

BD2_PULSE_GENERATOR

ST call

PROGRAM TEST_BD2
   VAR
 B1 : BOOL;
  FB : LIB.CORE.V1_1.BD2_PULSE_GENERATOR;
 END_VAR
 FB();
   B1 := FB.OUT;
END_PROGRAM

Library

LIB\CORE

Version

V1.1

Description

The block is a binary pulses generator with settable true and false time for testing purposes.

Verze V1.1

Fixed working with indexes that led to the OutOfBounds error

Inputs

Input	Type	Description	Default value
ENABLE	BOOL	Generation enabled	True
PAUSING	BOOL	Behaviour after ENABLE (ifFALSE the pulses start from beginning of the period, if TRUE the pulse continues from where it was disabled).	True
TFALSE	TIME	Interval for FALSE period.	1s
TTRUE	TIME	Interval for TRUE period.	1s

Outputs

Output	Type	Description
OUT	BOOL	Output signal.
OUTN	BOOL	Output negated signal
TRES	TIME	Time remaining until end of period [s].

Function

The function block BD2 generates pulses at the OUT terminal.

Application example

The block is used mostly for testing purposes, for automatic periodic reset of flip-flop circuits, etc. Use B87, PWM, to create a pulse-width modulation signal.

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