Mitsubishi Electric GT16, Руководство пользователя

Страница: 1156 / 1306

61 - 24
61. MICROCOMPUTER CONNECTION (SERIAL)
61.5 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 format
Request message
(host
GOT)
Response message
during normal
communication
(GOT
host)
Response message
during faulty
communication
(GOT
host)
(format 1: GOT-A900 Series microcomputer connection (format 1))
(format 2: GOT-A900 Series microcomputer connection (format 2))
Sum check is performed in this range.
02
H
STX
03
H
ETX
(H) (L)
5 6
35
H
36
H
Sum
Check
(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
06
H
ACK
15
H
NAK
The above is a case where
the sum check error (06
H
)
has occurred.
15
H
NAK
06
H
Error
code