Mitsubishi Electric GOT2000 Series Connection Manual page 184

■3. Message Formats
(1) Batch read in word units (RD) command
(a) When reading a word device
The following shows an example of reading the two points of the virtual devices D100 and D101.
(Assuming D100=0102H, D101=0304H are stored.)
Item
Request
message
(host GOT)
Response
message during
normal
communication
(GOT host)
Response
message during
faulty
communication
(GOT host)
3 - 22
3.4 Message Formats
(format 1: GOT-A900 Series microcomputer connection (ASCII))
(format 2: GOT-A900 Series microcomputer connection (Binary))
(format 1: GOT-A900 Series microcomputer connection (ASCII))
(format 2: GOT-A900 Series microcomputer connection (Binary))
D100 0102
H
D101 0304
H
Message format
Command Address
R D 0 1 0
52 44 30 31 30
H H H H H
(H) (L) (H) (L)
Command Address
R D 00 64
H H
Data 1 (D100) Data 2 (D101)
0 1 0 2 0
30 31 30 32 30
H H H H H
(H) (L) (H)
Data 1 Data 2
(D100) (D101)
01 02 03
H H H
Error
NAK
code
15 06
H H
The above is a case
where the sum check error
(06 ) has occurred.
H
Number of
points
0 0 2
30 30 32
H H H
(H) (L)
Number
of points
02
H
3 0 4
33 30 34
H H H
(L)
04
H