UnpackDWord (FB)¶

FUNCTION_BLOCK UnpackDWord

Function block unpacks “dwValue” and returns the two contained “wLowWord”, “wHighWord”, the 4 contained bytes “byLLByte” .. “byHHByte” and the 32 bits “xBit0” .. “xBit31”.

Prefix: “memudw”.

Example:

dwValue = 16#01020304 = 2#00000001 00000010 00000011 00000100
->
byLowWord = 16#0304
byHighWord = 16#0102
byLLByte = 16#04
byLHByte = 16#03
byHLByte = 16#02
byHHByte = 16#01
xBit2, xBit8, xBit9, xBit17 and xBit24 = TRUE
remaining bits = FALSE

InOut:

Scope	Name	Type	Comment
Input	dwValue	DWORD	DWORD to analyse
Output	wLowWord	WORD	low word of dwValue
	wHighWord	WORD	high word of dwValue
	byLLByte	BYTE	byte LL of dwValue
	byLHByte	BYTE	byte LH of dwValue
	byHLByte	BYTE	byte HL of dwValue
	byHHByte	BYTE	byte HH of dwValue
	xBit0	BOOL	Bit 0 of dwValue
	xBit1	BOOL	Bit 1 of dwValue
	xBit2	BOOL	Bit 2 of dwValue
	xBit3	BOOL	Bit 3 of dwValue
	xBit4	BOOL	Bit 4 of dwValue
	xBit5	BOOL	Bit 5 of dwValue
	xBit6	BOOL	Bit 6 of dwValue
	xBit7	BOOL	Bit 7 of dwValue
	xBit8	BOOL	Bit 8 of dwValue
	xBit9	BOOL	Bit 9 of dwValue
	xBit10	BOOL	Bit 10 of dwValue
	xBit11	BOOL	Bit 11 of dwValue
	xBit12	BOOL	Bit 12 of dwValue
	xBit13	BOOL	Bit 13 of dwValue
	xBit14	BOOL	Bit 14 of dwValue
	xBit15	BOOL	Bit 15 of dwValue
	xBit16	BOOL	Bit 16 of dwValue
	xBit17	BOOL	Bit 17 of dwValue
	xBit18	BOOL	Bit 18 of dwValue
	xBit19	BOOL	Bit 19 of dwValue
	xBit20	BOOL	Bit 20 of dwValue
	xBit21	BOOL	Bit 21 of dwValue
	xBit22	BOOL	Bit 22 of dwValue
	xBit23	BOOL	Bit 23 of dwValue
	xBit24	BOOL	Bit 24 of dwValue
	xBit25	BOOL	Bit 25 of dwValue
	xBit26	BOOL	Bit 26 of dwValue
	xBit27	BOOL	Bit 27 of dwValue
	xBit28	BOOL	Bit 28 of dwValue
	xBit29	BOOL	Bit 29 of dwValue
	xBit30	BOOL	Bit 30 of dwValue
	xBit31	BOOL	Bit 31 of dwValue