F_DATA_TO_CRC16_CCITT
The function "F_DATA_TO_CRC16_CCITT" performs a 16-Bit-CRC-CCITT (cyclic redundancy check) of any data. Internaly the function F_BYTE_TO_CRC16_CCITT is used, refer to the documentation of the F_BYTE_TO_CRC16_CCITT function for further information.
FUNCTION F_DATA_TO_CRC16_CCITT: WORD
VAR_INPUT
pData : DWORD;(* Pointer to data *)
cbData : UDINT;(* Length of data *)
crc : WORD; (* Initial value (16#FFFF or 16#0000) or previous CRC-16 result *)
END_VARpData: Address of data buffer.
cbData: Length of data buffer.
crc: Initial value = 16#FFFF or 16#0000 or last CRC.
Requirements
Development environment | Target system type | PLC libraries to include |
|---|---|---|
TwinCAT v2.10.0 Build > 1340 | PC or CX (x86, ARM) | TcUtilities.Lib |