Mitsubishi Electric MELSEC iQ-R Series User Manual page 45

■Data storage area configuration per one data
The following shows the data storage area configuration per one data.
●"Conversion Unit": Word, "Number of Decimals": No decimal Point/Fixed point
Data storage area
0H Numeric data
●"Conversion Unit": Word, "Number of Decimals": Variable point
For 'Variable Point', the decimal point position is set in the data storage area.
Data storage area
0H Numeric data
Decimal point position
1H
In the decimal point position area, the decimal point position is set as follows.
Send/receive data (number of digits of
data is 5)
12345
1234.5
123.45
12.345
1.2345
●"Conversion Unit": Double word, "Number of Decimals": No Decimal Point/Fixed point
Data storage area
0H
Numeric data
1H
●"Conversion Unit": Double word, "Number of Decimals": Variable Point
For 'Variable Point', the decimal point position is set in the data storage area.
Data storage area
0H
Numeric data
1H
2H
Decimal point position
3H
In the decimal point position area, the decimal point position is set as follows.
Send/receive data (number of digits of
data is 10)
1234567890
123456789.0
12345678.90
1234567.890
:
1.234567890
■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
HEX ASCII decimal
Unsigned
ASCII decimal  HEX
Signed
HEX  ASCII 
hexadecimal
ASCII hexadecimal 
HEX
Numeric data
12345 (3039H)
12345 (3039H)
12345 (3039H)
12345 (3039H)
12345 (3039H)
(L)
(H)
(L)
(H)
(L)
(H)
Numeric data
1234567890 (499602D2H)
1234567890 (499602D2H)
1234567890 (499602D2H)
1234567890 (499602D2H)
:
1234567890 (499602D2H)
Conversion unit
Word
Double word
Word
Double word
Word
Double word
Decimal point position
1 (1H)
10 (0AH)
100 (64H)
1000 (3E8H)
10000 (2710H)
Decimal point position
1 (1H)
10 (0AH)
100 (64H)
1000 (3E8H)
:
1000000000 (3B9ACA00H)
Range of value
0 to 65535 (0H to FFFFH)
0 to 4294967295 (0H to FFFFFFFFH)
-32768 to 32767 (8000H to FFFFH, 0H to 7FFFH)
-2147483648 to 2147483647 (80000000H to FFFFFFFFH, 0H to 7FFFFFFFH)
0H to FFFFH
0H to FFFFFFFFH
2 DATA COMMUNICATION USING PREDEFINED PROTOCOL
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2.3 Packet