Mitsubishi Electric FX3U-ENET-ADP, Руководство пользователя

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7 Communication Using MC Protocol
59
FX
3U
-ENET-ADP User's Manual
1
Introduc
tion
2
Specifi
cation
3
Sy
stem
Configurati
on
4
Ins
tal
lation
5
Wi
rin
g
6
Introduction of Functi
on
s
7
C
omm
uni
cation
U
sing
M
C
Protocol
8
The O
perati
on
of G
X
W
ork
s2
9
Troubl
es
hooti
ng
A
Li
st of S
peci
al
Dev
ices
7.3 Message Formats and Control Procedures
b) When reading from or writing to a word device memory
Each word of the word device memory is expressed in hexadecimal values in 4-bit units sequentially
from the higher bit.
(Example)
Indicating the storage contents of data registers D350 and D351
<Point>
- When designating alphabet letters in the character area, use upper case.
- When data other than an integer value (real number, character string) is stored in a word device
memory to be read, the stored value is read as an integer value.
(Example 1)
When the real number (0.75) is stored in D0 and D1, it is read as the following integer values:
D0 = 0000H, D1 = 3F40H
(Example 2)
When the character string ("12AB") is stored in D2 and D3, it is read as the following integer values:
D2 = 3231H, D3 = 4241H
30
H
0 0
30
H
0
30
H
0
30
H
1
31
H
5
35
H
6
36
H
A
41
H
B
42
H
1
31
H
7
37
H
0
30
H
F
46
H
5
35
H
E
45
H
0
30
H
2
32
H
32
H
2
L H L H L H L
34
H
4
34
H
4
H
30
H
30
H
0 0
B15
0 1 0 1 0 1 1 0 1 0 1 0 1 0 1 1 0 0 0 1
B14B13B12B11B10B9B8B7B6B5B4B3B2B1B0
0 1 1 1 0 0 0 0 1 1 1 1
B15B14B13B12B11B10B9B8B7B6B5B4B3B2B1B0
5 6 A B 1 7 0 F
Head device Device
point
Data Data
1: Indicates ON
0: Indicates OFF
The content of D350 indicates 56AB
H
(22187 in decimal)
The content of D351 indicates 170F
H
(5903 in decimal)