Mitsubishi Electric melsec q00ujcpu User Manual page 79

(b) Calculation example
Calculation examples are shown below. (The "X" in (nnnnnn)
1) Storing "10"
(10) (1010)
10
Sign: Positive
Exponent:
Mantissa:
In this case, the value will be encoded as 41200000
Sign
0 1 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
2) Storing "0.75"
(0.75)
10
Sign: Positive
Exponent:
Mantissa:
In this case, the value will be encoded as 3F400000
Sign
0 0 1 1 1 1 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Values after the decimal point (in binary) is calculated as follows.
Example
(0.1101) 2
2 =
2 - 40
(1.010000.....
2
0
3 82 (10000010)
H
(010 00000 00000 00000 00000)
Exponent
4 1 2
(0.11) (1.100..... 2
2
0
-1 7E (01111110)
H
(100 00000 00000 00000 00000)
Exponent
3 F 4
(0.1101)
2
0. 1
The bit represents 2
-1 -2 -4
+ 2 + 2 0.5 + 0.25 + 0.0625
=
3
2 )
2
2
2
.
H
Mantissa
0 0
-1
)
2
2
2
.
H
Mantissa
0 0 0
1
-1
The bit represents 2
(0.8125)
= 10
indicates the numeral system used.)
x
0 0 0
0 0
0
-2 -3
The bit represents 2 The bit represents 2
1
-4