CRC16_Modbus (FUN)¶

FUNCTION CRC16_Modbus : WORD

Function calculates the Modbus CRC16 checksum. Deviating from the initial value generally used the check sum will be initialized with 16#FFFF.

Example:

sTest : STRING(10) := '123456789' ;
->
MEM.CRC16_Modbus(ADR(sTest), 9) = 16#4B37

InOut:

Scope	Name	Type	Comment
Return	CRC16_Modbus	WORD	function returns the Modbus CRC16 checksum of “MemoryBlock”
Input	pMemoryBlock	POINTER TO BYTE	address of memory Block
	uiLength	UINT	length of MemoryBlock in byte