HEXASCNIBBLE_TO_BYTE

 

HEXASCNIBBLE_TO_BYTE 1:

This function converts the ASCII code of a hexadecimal half-byte character into the decimal value.

FUNCTION HEXASCNIBBLE_TO_BYTE : BYTE

VAR_INPUT

VAR_INPUT
    asc     : BYTE;
END_VAR

asc: Ascii-code of a hexadecimal half-byte character (Ascii code from: ‘0’ to ‘9’ or ‘a’ to ‘f’ or ‘A’ to ‘F’).

Return value

Meaning

0 to 15

Successful, no error.

255

Error, wrong input parameter value.

 

Requirements

Development environment

Target system type

PLC libraries to include

TwinCAT v2.11.0 Build >=2248

PC or CX (x86, ARM)

TcUtilities.Lib