Bit composition
- Function name
- ST call
- Library
- Version
- Description
- Inputs
- Outputs
- Function
- Application example

Bit composition

Function name

BD18_BIT_COMPOSITION

ST call

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

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

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.

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