CLEARBIT32

CLEARBIT32 1:

The function resets the bit specified by a bit number in the 32 bit value that is passed to it to zero and returns the resulting value.

FUNCTION CLEARBIT32 : DWORD

VAR_INPUT
    inVal32    : DWORD;
    bitNo      : SINT;
END_VAR

inVal32: 32 bit value that is to be modified

bitNo: Number of the bit that is to be set (0-31). This number is internally converted to a modulo 32 value prior to execution

Example of calling the function in FBD:

CLEARBIT32 2:

This resets bit 31 of the input value “C0000000”. The result is the (hex) value “40000000”.

Requirements

Development environment

Target system type

PLC libraries to include (Category group)

TwinCAT v3.1.0

PC or CX (x86, x64, ARM)

Tc2_System (System)