SetBit - Manual - SIMATIC AX - System BitAccess Library

Sets the value of the specified bit of a bit string and returns the result.

Parameters:

Name	Type	Section	Description
value	T	Input	The bit string on which to operate.
index	`USINT`	Input	Represents the position of the bit to set. The valid range depends on the type of the `value`-variable: - [0..7] for `BYTE` - [0..15] for `WORD` - [0..31] for `DWORD` - [0..63] for `LWORD` When specifying an invalid index, the function does not modify the value.
bitValue	`BOOL`	Input	Set to TRUE to set the specified bit; set to FALSE to reset it. Default: TRUE
	T	Return value	Provides the resulting bit string.

The type T may be any of BYTE, WORD, DWORD or LWORD.

Example:

USING System.BitAccess;

PROGRAM SetBitProgram

    VAR

        value : WORD := WORD#2#0001_0001_0001_0001;

        bitValue : BOOL := false;

        result : WORD;

    END_VAR

    // 0001_0001_000->0<-_0001

    result := SetBit(

        value := value,

        bitValue := bitValue,

        index := USINT#4);

END_PROGRAM

SetBit - Manual - SIMATIC AX - System BitAccess Library - System.BitAccess,library

System.BitAccess library