Short summary

Name	`XOR`
→POU type	→function
Category	IEC-block, Bitstring
Conform to →IEC-standard	no restrictions
Graphical interface
Available since	version 1.0.0 (for logi.CAD 3) – initial variant version 3.2.5 (for library `Standard`) – internal matters refactored in order to prevent warnings when compiling

Functionality

The block returns the result of a bitwise EXCLUSIVE-OR operation of all values connected to the inputs .

Inputs, return value

	Identifier	→Data type	Description
Inputs:	`IN1`	`BOOL`, `BYTE`, `WORD`, `DWORD` or `LWORD`(corresponds to →generic data type `ANY_BIT`)	1st value
	`IN2`	`BOOL`, `BYTE`, `WORD`, `DWORD` or `LWORD`(corresponds to →generic data type `ANY_BIT`)	2nd value
	... (extensible until)
	`IN16`	`BOOL`, `BYTE`, `WORD`, `DWORD` or `LWORD`(corresponds to →generic data type `ANY_BIT`)	16th value
Return value:	–	`BOOL`, `BYTE`, `WORD`, `DWORD` or `LWORD`(corresponds to →generic data type `ANY_BIT`)

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

Example for usage within ST-editor

PROGRAM Test
    VAR
        result1, result2, result3, result4 : BOOL;
    END_VAR
    result1 := XOR(IN1 := FALSE, IN2 := FALSE);       (* The variable 'result1' evaluates to 'FALSE'. *)
    result2 := XOR(IN1 := FALSE, IN2 := TRUE );       (* The variable 'result2' evaluates to 'TRUE'.  *)
    result3 := XOR(IN1 := TRUE,  IN2 := FALSE);       (* The variable 'result3' evaluates to 'TRUE'.  *)
    result4 := XOR(IN1 := TRUE,  IN2 := TRUE );       (* The variable 'result4' evaluates to 'FALSE'. *)
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.