TOHO ELECTRONICS TTM200 User Manual
Page 9
9
3.4 Composition of a response message (transmitted from this product to a
high-level computer)
For codes ① to ⑩, see "3.5 Description of codes."
For specific examples of request messages, see "4.1 Examples of communications to be read"
and "4.2 Examples of communications to be written."
3.4.1 Response message in response to a read request message
Ｓ
Ｔ
Ｘ
□ □
Ａ
Ｃ
Ｋ
Ｂ
Ｃ
Ｃ
□ □ □
Ｅ
Ｔ
Ｘ
①
S
ta
rt
c
o
d
e
②
A
d
d
re
s
s
⑧
A
c
k
n
o
w
le
d
g
e
c
o
d
e
｜
④
Id
e
n
tif
ie
r
｜
⑥
E
n
d
c
o
d
e
⑦
B
CC
d
a
ta
□ □ □ □ □
｜
｜
⑤
Nu
m
e
ric
a
l d
a
ta
｜
｜
3.4.2 Response message in response to a write/store request message
Ｓ
Ｔ
Ｘ
□ □
Ａ
Ｃ
Ｋ
Ｂ
Ｃ
Ｃ
Ｅ
Ｔ
Ｘ
①
S
ta
rt
c
o
d
e
②
A
d
d
re
s
s
⑥
E
n
d
c
o
d
e
⑦
B
C
C
d
a
ta
⑧
A
c
k
n
o
w
le
d
g
e
c
o
d
e
3.4.3 Response message in the case of an error
Ｓ
Ｔ
Ｘ
□ □
Ｎ
Ａ
Ｋ
Ｂ
Ｃ
Ｃ
Ｅ
Ｔ
Ｘ
①
S
ta
rt
c
o
d
e
②
A
d
d
re
s
s
⑥
E
n
d
c
o
d
e
⑦
B
C
C
d
a
ta
⑨
N
e
g
a
tiv
e
□
⑩
E
rr
o
r c
o
d
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a
c
k
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