F_BYTE_TO_CRC16_CCITT
The function "F_BYTE_TO_CRC16_CCITT" can be used to determine a 16-bit CRC CCITT (cyclic redundancy check) for individual data bytes.
The generator polynomial used: Name: CRC-16 CCITT
- Standard: CRC-CCITT
- References: ITU X.25/T.30, ADCCP, SDLC/HDLC, ...
- Polynomial value: 0x1021
- Polynomial: x^16 + x^12 + x^5 + 1
FUNCTION F_BYTE_TO_CRC16_CCITT: WORD
VAR_INPUT
VAR_INPUT
value : BYTE;(* Data value *)
crc : WORD;(* Initial value (16#FFFF or 16#0000) or previous CRC-16 result *)
END_VARvalue: The data byte to be converted.
crc: Initial value = 16#FFFF or 16#0000 or the last CRC.
Requirements
|
Development environment |
Target platform |
PLC libraries to be integrated (category group) |
|---|---|---|
|
TwinCAT v3.1.0 |
PC or CX (x86, x64, ARM) |
Tc2_Utilities (System) |