Mitsubishi Electric GOT2000 Series Connection Manual page 109

(2) Batch write in word units (WD) command
(a) When writing to a word device
The following shows as example of writing "0064H"and "0065H"to virtual devices D100 and D101.
Item
STX Command
W
Request message
02 57
(host GOT) H H
(H)
Response
message during
normal
communication
(GOT host)
(format 1: GOT-A900 Series microcomputer connection (format 1))
Response
message during
(format 2: GOT-A900 Series microcomputer connection (format 2))
faulty
communication
(GOT host)
D100 0000
H
D101 0000
H
Before execution
Number of
Address
points
D 0 1 0 0 0
44 30 31 30 30 30
H H H H H H
(L) (H) (L) (H)
Sum check is performed in this range.
After execution
Message format
Data 1(D100)
2 0 0 6 4 0
32 30 30 36 34 30
H H H H H
(L) (H) (L) (H)
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.
2.5 Message Formats
D100 0064
H
D101 0065
H
Sum
Data 2 (D101) ETX
Check
0 6 5 5
30 36 35 03 35 36
H H H H H H
(L) (H) (L)
2
6
H
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