CLEARBIT32
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
VAR_INPUT
inVal32 :DWORD;
bitNo :SINT;
END_VAR
inVal32: the 32-bit value to be changed;
bitNo: the number of the bit to be set (0-31). This number is internally converted to a modulo 32 value prior to execution;
Sample of calling the function in FBD:
Bit 31 in the input value 'C0000000' is reset. The result is the (hex) value '40000000'.
Requirements
Development environment |
Target platform |
PLC libraries to include |
---|---|---|
TwinCAT v2.7.0 and above |
BCxxxx (165) |
Standard.Lb6, PlcSystemBC.Lb6, TcPlcUtilitiesBC.Lb6 |