Short summary

Name	`BIT_TGL`
→POU type	→function
Category	IEC-block, BitstringEnh
Conform to →IEC-standard	not defined in IEC-standard
Graphical interface
Available since	version 1.23.0 (for logi.CAD 3) – initial variant: `ANY_BIT` for input `IN` and return value version 1.35.0 (for logi.CAD 3) – enhancement: `ANY_INT` for input `IN` and return value

Functionality

The block returns the result of a bitwise toggling .

At input IN, enter a value (the value at input IN is unchanged when the toggling takes place). At input N, enter the bit number (0-based) that should be toggled.

Inputs, return value

	Identifier	→Data type	Description
Inputs:	`IN`	`BOOL`, `BYTE`, `WORD`, `DWORD` or `LWORD`(corresponds to →generic data type `ANY_BIT`) and `USINT`, `UINT`, `UDINT`, `ULINT`, `SINT`, `INT`, `DINT` or `LINT`(corresponds to →generic data type `ANY_INT`)	input value
Inputs:	`N`	`USINT`	the bit number (0-based) to toggle
Return value:	–	`BOOL`, `BYTE`, `WORD`, `DWORD` or `LWORD`(corresponds to →generic data type `ANY_BIT`) and `USINT`, `UINT`, `UDINT`, `ULINT`, `SINT`, `INT`, `DINT` or `LINT`(corresponds to →generic data type `ANY_INT`)

Input EN and output ENO are available when →calling the block. See "Execution control: EN, ENO" for information on input EN and output ENO.

See:

"Blocks for safe logic" whether this block is supported for developing safety-relevant applications.
"Highlighting safe logic in the FBD-editor" for the effects when using the block as a block for safe logic .

Example for usage within ST-editor

PROGRAM Test
    VAR
        result1 : WORD;
        result2 : LWORD;
    END_VAR
    result1 := BIT_TGL(IN := WORD#16#8003, N := 1);                (* The variable 'result1' evaluates to 'WORD#16#8001'. *)
    result2 := BIT_TGL(IN := LWORD#16#0000000000000003, N := 63);  (* The variable 'result2' evaluates to 'LWORD#16#8000000000000003'. *)
END_PROGRAM

When creating your application within the ST-editor, enter a call of a block by typing the text as requested by the syntax or use Content Assist.