Mitsubishi Electric GOT2000 Series Connection Manual page 133

■3. Message format
(1) Batch read (0) command (w/out station No.), batch read (A) command (w/station No.)
(a) When reading a word device
The following shows an example of reading four bytes of virtual devices R100 to R101 from the GOT at station
No.15.
(Assuming R100=3D21H, R101=3604H are stored.)
Item
Request
message
(host GOT)
Response
message during
normal
communication
(GOT host)
Response
message during
faulty
communication
(GOT host)
(format 14: GOT-F900 Series microcomputer connection (format 1))
Com-
STX
mand
A
02 41
H H
(format 15: GOT-F900 Series microcomputer connection (format 2))
Com-
STX Station No.
mand
A 1
02 41 31
H H H
(H)
(format 14: GOT-F900 Series microcomputer connection (format 1))
STX
(R100 upper)
02
H
(format 15: GOT-F900 Series microcomputer connection (format 2))
Data 1
STX
(R100 upper)
3
02 33
H H
(H) (L)
R100 3D21
H
R101 3604
H
Message format
Station No. Address
1 5 0 0 C 8
31 35 30 30 43 38
H H H H H
(H) (L) (H) – – (L)
Number of
Address
5 0 0 C 8 0
35 30 30 43 38 30
H H H H H
(L) (H) – – (L) (H)
Sum check is performed in this range.
Data 1 Data 2 Data 3
(R100 lower) (R101 upper)
3 D 2 1 3 6
33 44 32 31 33 36
H H H H H H
(H) (L) (H) (L) (H) (L)
Data 2 Data 3 Data 4
(R101 lower)
(R100 lower) (R101 upper)
D 2 1 3 6 0
44 32 31 33 36 30
H H H H H H
(H) (L) (H) (L) (H)
Sum check is performed in this range.
NAK
15
H
2.5 Message Formats
Number
CR
of bytes
0 4
30 34 0D
H H H H
(H) (L)
Sum
ETX
bytes
Check
4 E 9
34 03 45 39
H H H H H
(L) (H) (L)
Data 4
CR
(R101 lower)
0 4
0D
H
30 34
H H
(H) (L)
Sum
ETX
Check
4 A A
34 03 41 41
H H H H
(L) (H) (L)
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