UnpackWord (FB)¶

FUNCTION_BLOCK UnpackWord

Function block unpacks “wValue” and returns the 2 bytes contained “byLowByte” and “byHighByte” and the 16 bits “xBit0” .. “xBit15”.

Prefix: “memuw”.

Example:

wValue = 16#0102 = 2#00000001 00000010
->
byLowByte = 16#02
byHighByte = 16#01
xBit1, xBit8 = TRUE
remain bits = FALSE

InOut:

Scope	Name	Type	Comment
Input	wValue	WORD	WORD to analyse
Output	byLowByte	BYTE	low byte of wValue
	byHighByte	BYTE	high byte of wValue
	xBit0	BOOL	Bit 0 of wValue
	xBit1	BOOL	Bit 1 of wValue
	xBit2	BOOL	Bit 2 of wValue
	xBit3	BOOL	Bit 3 of wValue
	xBit4	BOOL	Bit 4 of wValue
	xBit5	BOOL	Bit 5 of wValue
	xBit6	BOOL	Bit 6 of wValue
	xBit7	BOOL	Bit 7 of wValue
	xBit8	BOOL	Bit 8 of wValue
	xBit9	BOOL	Bit 9 of wValue
	xBit10	BOOL	Bit 10 of wValue
	xBit11	BOOL	Bit 11 of wValue
	xBit12	BOOL	Bit 12 of wValue
	xBit13	BOOL	Bit 13 of wValue
	xBit14	BOOL	Bit 14 of wValue
	xBit15	BOOL	Bit 15 of wValue