====== Latch flip-flop  ======

{{:en:mervis-ide:35-help:bd53.png}}

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

BD53_LATCHFLIPFLOPNODE

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

<code st-iec>
PROGRAM TEST_BD53
VAR
   BOOL1, BOOL2, BOOL3, BOOL4, BOOL5, BOOL6, BOOL7: BOOL;  
    FB : LIB.CORE.V1_0.BD53_LATCHFLIPFLOPNODE;
END_VAR
   FB.IN[1]:=BOOL2;
    FB.IN[2]:=BOOL3;
    FB.IN[3]:=BOOL4;
    FB(ENABLED:=BOOL1);
 BOOL5 := FB.OUT[1];
 BOOL6 := FB.OUT[2];
 BOOL7 := FB.OUT[3];
END_PROGRAM
</code>

===== Library =====

LIB\CORE

===== Version =====

V1.0

===== Description =====

The block is a gate for logical signals.\\


===== Inputs =====

|Input          |Type                           |Description                                 |Default value|
|ENABLE         |BOOL                           |If //enable//=true then //out0//=//in0//,...|False        |
|IN0,IN1,..,IN15|BOOL                           |Inputs, individually                        |             |
|IN             |[[en:mervis-ide:35-help:035-software_basic:060-libraries:015-proto|MULTIIOBOOL]]|Inputs array                                |[False]      |

===== Outputs =====

|Output            |Type                           |Description          |
|OUT               |[[en:mervis-ide:35-help:035-software_basic:060-libraries:015-proto|MULTIIOBOOL]]|Outputs array        |
|OUT0,OUT1,..,OUT15|BOOL                           |Outputs, individually|

===== Function =====

The block is a gate: if //enable//=true then all inputs are copied to outputs. If //enable//=false the outputs keep the last value. Note that the ST indeces range is 1 to 16 rather than 0...15.

===== Application example =====

{{:en:mervis-ide:35-help:bd53_example.png}}