Mitsubishi Electric GOT2000 Series Connection Manual page 95

(b) When writing to a bit device
The following shows an example of writing "1"s to virtual devices M0 and M31.
Item
STX
Command
W
02 57
H
Request message
(H)
(host GOT)
Response message
during normal
communication
(GOT host)
(format 1: GOT-A900 Series microcomputer connection (format 1))
Response message
(format 2: GOT-A900 Series microcomputer connection (format 2))
during faulty
communication
(GOT host)
M15 to 0 0000
H
M31 to 16 0000
H
Before execution
Sum check is performed in this range.
Address
D 8 3 2 0
44 38 33 32 30 30
H H H H H H
(L) (H) – – (L) (H)
After execution
Message format
Number
Data 1 (M15 to 0)
of points
0 2 0 0 0 1
32 30 30 30 31
H H H H H H
(L) (H) – – (L)
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
M M M M M M M M M M M M M M M M
1 1 1 1 1 1 9 8 7 6 5 4 3 2 1 0
5 4 3 2 1 0
ACK
06
H
NAK
15
H
Error
NAK
code
15 06
H H
The above is a case where
the sum check error (06 )
H
has occurred.
2. MICROCOMPUTER CONNECTION (SERIAL)
2.5 Message Formats
M15 to 0 0001
H
M31 to 16 8000
H
Sum
Data 2 (M31 to 16) ETX
Check
8 0 0 0 5
38 30 30 30 03 35
H H H H H H
(H) – – (L) (H)
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
M M M M M M M M M M M M M M M M
3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1
1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6
2
6
36
H
(L)
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