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.