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