Mitsubishi Electric GOT2000 Series Connection Manual page 128

(b) When reading a bit device
The following shows an example of reading four bytes of the virtual devices M0 to M31.
(Assuming M0="1" and M31="1" are stored.
Item
(format 14: GOT-F900 Series microcomputer connection (format 1))
Request message
(format 15: GOT-F900 Series microcomputer connection (format 2))
(host GOT)
(format 14: GOT-F900 Series microcomputer connection (format 1))
Response message
during normal
(format 15: GOT-F900 Series microcomputer connection (format 2))
communication
(GOT host)
Response message
during faulty
communication
(GOT host)
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2. MICROCOMPUTER CONNECTION (SERIAL)
2.5 Message Formats
Message format
Com-
STX Station No.
mand
A 1 5
02 41 31 35 32
H H H H
(H) (L) (H)
Com-
Station No.
STX
mand
A 1 5 2
02 41 31 35 32 30
H H H H H
(H) (L) (H)
Sum check is performed in this range.
Data 1 Data 2
STX
(M7 to 0) (M15 to 8)
0 1 0
02 30 31 30
H H H H
(H) (L) (H)
0 0 0 0 0 0 0 1 0 0 0 0
M M M M M M M M M M M M
7 6 5 4 3 2 1 0 1 1 1 1
5 4 3 2
Sum check is performed in this range.
Data 1 Data 2
STX
(M7 to 0) (M15 to 8)
0 1 0 0
02 30 31 30 30
H H H H H
(H) (L) (H) (L)
0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0
M M M M M M M M M M M M M M M M
7 6 5 4 3 2 1 0 1 1 1 1 1 1 9 8
5 4 3 2 1 0
0001
M15 to 0
H
M31 to 16 8000
H
Number of
Address
bytes
2 0 0 0 0 4
30 30 30 30 34
H H H H H
– – (L) (H) (L)
Number of
Address ETX
bytes
0 0 0 0 4
30 30 30 34 03
H H H H H
– – (L) (H) (L)
Data 3 Data 4
(M23 to 16) (M31 to 24)
0 0 0 8 0
30 30 30 38 30
H H H H H
(L) (H) (L) (H) (L)
0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0
M M M M M M M M M M M M M M M M M M M
1 1 9 8 2 2 2 2 1 1 1 1 3 3 2 2 2 2 2
1 0 3 2 1 0 9 8 7 6 1 0 9 8 7 6 5
Data 3 Data 4
ETX
(M23 to 16) (M31 to 24)
0 0 8 0
30 30 38 30 03
H H H H H
(H) (L) (H) (L)
0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0
M M M M M M M M M M M M M M M M
2 2 2 2 1 1 1 1 3 3 2 2 2 2 2 2
3 2 1 0 9 8 7 6 1 0 9 8 7 6 5 4
NAK
15
H
CR
0D
H H
Sum
Check
D 0
44 30
H H H
(H) (L)
CR
0D
H
0
M
2
4
Sum
Check
8 C
38 43
H H
(H) (L)