Mitsubishi Electric GOT2000 Series Connection Manual page 190

(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
Request
message
(host GOT)
Response
message during
normal
communication
(GOT host)
Response
message
during faulty
communication
(GOT host)
3 - 36
3.4 Message Formats
(format 3: GOT-F900 Series microcomputer connection (ASCII))
Com-
mand
(format 4: GOT-F900 Series microcomputer connection (Binary))
(format 3: GOT-F900 Series microcomputer connection (ASCII))
0
M
7
(format 4: GOT-F900 Series microcomputer connection (Binary))
0
M
7
M15 to 0 0001
8000
M31 to 16
Message format
Station No. Address
A 1 5 2 0
41 31 35 32 30
H H H H H
(H) (L) (H) –
Com- Station
Address
mand
No.
A 0F 20
H H
Data 1 Data 2 Data 3
(M7 to 0) (M15 to 8) (M23 to 16)
0 1 0 0 0
30 31 30 30 30
H H H H H
(H) (L) (H) (L) (H)
0 0 0 0 0 0 1 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 M M
6 5 4 3 2 1 0 1 1 1 1 1 1 9 8 2 2 2
5 4 3 2 1 0 3 2 1
Data 1 Data 2 Data 3
(M7 to 0) (M15 to 8) (M23 to 16)
01 00 00
H H H
0 0 0 0 0 0 1 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 M M
6 5 4 3 2 1 0 1 1 1 1 1 1 9 8 2 2 2
5 4 3 2 1 0 3 2 1
NAK
15
H
H
H
Number of
bytes
0 0 0 4
30 30 30 34
H H H H
– (L) (H) (L)
Number
of bytes
00 04
H H
Data 4
(M31 to 24)
0 8 0
30 38 30
H H H
(L) (H) (L)
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
2 1 1 1 1 3 3 2 2 2 2 2 2
0 9 8 7 6 1 0 9 8 7 6 5 4
Data 4
(M31 to 24)
80
H
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
2 1 1 1 1 3 3 2 2 2 2 2 2
0 9 8 7 6 1 0 9 8 7 6 5 4