Mitsubishi MELSEC LJ71C24, Руководство пользователя

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9 DATA COMMUNICATION USING THE PREDEFINED PROTOCOL
4) "Conversion Unit": Doubleword,
"Number of Decimals": Variable Point
For 'Variable Point', the decimal point position is set in the data storage
area.
Data storage area
Numeric data
Decimal point position
(L)
(H)
(L)
(H)
0h
1h
2h
3h
In the decimal point position area, the decimal point position is set as
follows.
Send/receive data
(number of digits is 10)
Numeric data Decimal point position
1234567890 1234567890(499602D2
H
) 1(1
H
)
123456789.0 1234567890(499602D2
H
) 10(0A
H
)
12345678.90 1234567890(499602D2
H
) 100(64
H
)
1234567.890 1234567890(499602D2
H
) 1000(3E8
H
)
: : :
1.234567890 1234567890(499602D2
H
) 1000000000(3B9ACA00
H
)
(e) Range of value that can be used in the data storage area
The following table shows the range of value that can be used in the data
storage area.
Conversion Sign Conversion unit Range of value
Word 0 to 65535 (0
H
to FFFF
H
)
Unsigned
Double word
0 to 4294967295
(0
H
to FFFFFFFF
H
)
Word
-32768 to 32767
(8000
H
to FFFF
H
, 0
H
to 7FFF
H
)
HEX ASCII decimal
ASCII decimal HEX
Signed
Double word
-2147483648 to 2147483647
(80000000
H
to FFFFFFFF
H
,
0
H
to 7FFFFFFF
H
)
Word 0
H
to FFFF
H
HEX ASCII hexadecimal
ASCII hexadecimal HEX
Double word 0
H
to FFFFFFFF
H