====== Pulse generator ======

{{:en:mervis-ide:35-help:bd2.png}}

===== Block name =====

BD2_PULSE_GENERATOR

===== ST call =====

<code st-iec>
PROGRAM TEST_BD2
   VAR
 B1 : BOOL;
  FB : LIB.CORE.V1_1.BD2_PULSE_GENERATOR;
 END_VAR
 FB();
   B1 := FB.OUT;
END_PROGRAM
</code>

===== 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 (if//FALSE// 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 =====

{{:en:mervis-ide:35-help:bd2_example.png}}\\


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.