Mitsubishi Electric GT14, User Manual

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62 - 20
62. MICROCOMPUTER CONNECTION (ETHERNET)
62.4 Message Formats
(2) Batch write in word units (WD) command
(a) When writing to a word device
The following shows as example of writing "0064
H
" and "0065
H
" to virtual devices D100 and D101.
D100
D101
0000
H
0000
H
D100
D101
0064
H
0065
H
Before execution After execution
Item Message Formats
Request message
(host
GOT)
(format 1: GOT-A900 Series microcomputer connection (ASCII))
(format 2: GOT-A900 Series microcomputer connection (Binary))
Response message
during normal
communication
(GOT
host)
Response message
during faulty
communication
(GOT
host)
(H) (L)
Command
W D
57
H
44
H
(H) (L)
Address
0 1
30
H
31
H
0
30
H
0
30
H
(H) (L)
Number of
points
0 2
30
H
32
H
(H) (L)
Data 1 (D100)
0 0
30
H
30
H
6
36
H
4
34
H
(H) (L)
Data 2 (D101)
0 0
30
H
30
H
6
36
H
5
35
H
Command
W D
Address
00
H
64
H
Number
of points
02
H
Data1
(D100)
00
H
64
H
Data 2
(D101)
00
H
65
H
06
H
ACK
The above is a case where
the sum check error (06
H
)
has occurred.
15
H
NAK
06
H
Error
code