====== Bit composition ======

{{:en:mervis-ide:35-help:bd18.png}}

===== Function name =====

BD18_BIT_COMPOSITION

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

<code st-iec>
PROGRAM BD18_8B_TEST

VAR 

    IN1: ARRAY [0 .. 63] OF BOOL;

    O1: LINT;

END_VAR



    O1:= LIB.Core.V1_0.BD18_BIT_COMPOSITION(IN := IN1);

END_PROGRAM
</code>

===== Library =====

LIB\CORE

===== Version =====

V1.0

===== Description =====

Function brings bits together to create an integer value.

===== Inputs =====

|Input  |Type                   |Description                                               |
|ENABLED|BOOL                   |Enable function                                           |
|IN     |ARRAY [0 .. 63] OF BOOL|Array of input values (bits)                              |
|BS     |BOOL                   |Sign of the //out// output, if //OUT<0// then //BS=FALSE//|
|IN0    |BOOL                   |First input (simple type)                                 |
|IN1    |BOOL                   |Second input (simple type)                                |

===== Outputs =====

|Output|Type|Description                              |
|OUT   |LINT|Output value - bit composition of inputs.|

===== Function =====

The block brings together the input bit values //IN[0..63]// to a lint output //out//.

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

{{:en:mervis-ide:35-help:bd18_example.png}}\\


At the example, simple type (BOOL) inputs are used rather than the input array of BOOLs. The block is used e.g. to create a unit status value, such as Off / On / Auto which corresponds to values of 0 / 1 / 2.