Mitsubishi Q02HCPU User Manual

3
SEQUENCE PROGRAM CONFIGURATION AND
EXECUTION CONDITIONS
3.9 Numeric Values which can be Used in Sequence Programs
3.9.4 Real numbers (Floating-point data)
3 - 91
1
Overview
2
Performance Specification
3
Sequence Program Configuration and Execution Conditions
4
I/O Nunber Assignment
5
Memories and Files Handled by CPU Module
6
Functions
7
Communication using built-in Ethernet ports of CPU module
8
Communication with Intelligent Function Module
(b) Calculation example
Calculation examples are shown below (the nnnnn "X" indicates an X-system data
expression).
1) Storing "10"
(10)
10 (1010)2 (1.01000..... 2
3
)2
SignPositive to 0
Exponent part3 to 401
H to (100 0000 0001)
2
Mantissa(0100 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000)
2
Therefore, the data expression will be 4014000000000000H, as shown below.
2) Storing "0.75"
(0.75)
10 (0.11)2 (1.100..... 2
-1
)2
SignPositive to 0
Exponent part--1 to 3FD
H to (011 1111 1101)2
Mantissa(1000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000)2
Therefore, the data expression will be 3FD8000000000000H, as shown below.
POINT
In binary notation, the portion of the value following the decimal point is calculated
as follows:
Example) (0.1101)
2
(0.1101)2=2
-1
+2
-2
+2
-4
=0.5+0.25+0.0625=(0.8125)10
0.1101
This bit expresses2
-1
This bit expresses2
-2
This bit expresses2
-3
This bit expresses2
-4
Sign Exponent part Mantissa
0 100000000010100000000000000000000000000000000000000000000000000
4 0 1 4 0 0 0 0 0 0 0 0 0 0 0 0
Sign Exponent part Mantissa
0 011111110111000000000000000000000000000000000000000000000000000
3 F D 8 0 0 0 0 0 0 0 0 0 0 0 0

Mitsubishi Q02HCPU Specifications

General

Brand	Mitsubishi
Model	Q02HCPU
Category	Controller
Language	English