Mitsubishi Electric GT16, Руководство пользователя

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61. MICROCOMPUTER CONNECTION (SERIAL)
61.5 Message Formats
61 - 23
60
CONNECTION T
O
MURA
T
E
C
CONTROLL
ER
61
MI
C
R
O
C
OMPUTER
CONNECTION (SE
R
IA
L)
62
MICR
OCOMPUTER
CONNECTION (E
T
HE
RN
E
T)
63
MO
D
B
US(R)/
R
T
U
CONNE
C
T
ION
64
MO
DBUS(R)/
TCP
CON
N
E
C
T
ION
65
V
NC(R) S
E
R
V
E
R
CONNECTION
(b) When reading a bit device
The following shows an example of reading the two points of the virtual devices M0 to M31.
(Assuming M0="1" and M31="1" are stored.)
M15 to 0
M31 to 16
0001
H
8000
H
Item Message format
Request message
(host
GOT)
Response message
during normal
communication
(GOT
host)
Response message
during faulty
communication
(GOT
host)
(format 1: GOT-A900 Series microcomputer connection (format 1))
(format 2: GOT-A900 Series microcomputer connection (format 2))
Sum check is performed in this range.
02
H
STX
03
H
ETX
(H) (L)
8 C
38
H
43
H
Sum
Check
(H) (L)
Command
R D
52
H
44
H
(H) (L)
Address
8 3
38
H
33
H
2
32
H
0
30
H
(H) (L)
Number of
points
0 2
30
H
32
H
Sum check is performed in this range.
02
H
STX
03
H
ETX
(H) (L)
8 C
38
H
43
H
Sum
Check
(H) (L)
Data 1 (M15 to 0)
0
30
H
0
30
H
1
31
H
0
30
H
(H) (L)
8
38
H
0
30
H
0
30
H
0
30
H
M
1
6
M
1
7
M
1
8
M
1
9
M
2
0
M
2
1
M
2
2
M
2
3
M
2
4
M
2
5
M
2
6
M
2
7
M
2
8
M
2
9
M
3
0
M
3
1
0 0 0 0 0 0 0 0
M
0
M
1
M
2
M
3
M
4
M
5
M
6
M
7
M
8
M
9
M
1
0
M
1
2
M
1
3
M
1
4
M
1
5
M
1
1
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0
Data 2 (M31 to 16)
15
H
NAK
The above is a case where
the sum check error (06
H
)
has occurred.
15
H
NAK
06
H
Error
code