Word Device Memory - Mitsubishi Electric MELSEC FX Series User Manual

Programmable logic controllers
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FX communication
7.6.2

Word Device Memory

When handling word device memory, each word is expressed as 4 hexadecimal digits (each of 4
bits) starting with the higher digit. Each digit being represented by the appropriate ASCII
character.
Example 1) When showing the contents of data registers D350, D351
B15
B14
0
Example 2) When showing the contents of C200* (32-bit counter)
B15
B14
0
* The device code of C200 is CN200.
Head device
D 0 3 5 0
44H
30H
33H
35H
30H
5
6
A
B13
B12
B11
B10
B9
B8
B7
B6
1
0
1
0
1
1
0
1
0
Contents of D350 is 56ABH
(22187 in decimal).
Head device
C N 2 0 0
44H
4EH
32H
30H
30H
1
2
3
B13
B12
B11
B10
B9
B8
B7
B6
1
0
0
0
0
1
0
0
0
The content of the C200 shows 12345678H (305419896 in decimal notation).
No.of
Data
Data
device
points
5 6 A B
1 7 0 F
0
2
30H
32H
35H
36H
41H
42H
31H
37H
30H
B
1
B5
B4
B3
B2
B1
B0
B15
B14
B13
1
0
1
0
1
1
0
0
0
No.of
Data
Data
device
points
1 2 3 4
5 6 7 8
0
1
31H
32H
33H
34H
35H
36H
37H
30H
31H
4
5
B5
B4
B3
B2
B1
B0
B15
B14
B13
0
1
0
1
1
0
1
0
0
Computer link 7
46H
7
0
B12
B11
B10
B9
B8
B7
B6
B5
B4
1
0
1
1
1
0
0
0
0
Contents of D351 is 170FH
(5903 in decimal).
38H
6
7
B12
B11
B10
B9
B8
B7
B6
B5
B4
1
0
1
1
0
0
1
1
1
F
B3
B2
B1
B0
1
1
1
1
7
8
B3
B2
B1
B0
1
0
0
0
7-15

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