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: The 32-bit value that is to be modified;

bitNo: The 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'.