Communication Format
INR-244-831
3-7
3.7
Communication Example
Communication example of request message to read
Request message from master: Request the product having a set address of 1 to read the measured
temperature at that moment.
Response message from the product: Send the measured temperature (00250 =25.0
o
C) at that moment.
Request message to read (from master)
Code
Symbol/Data
ASCII code
①
Start code
STX
02H
②
Address
01
30H
31H
③
Required content
R (read)
52H
④
Identifier
PV1
50H
56H
31H
⑤
Numeric data
00250
30H
30H
32H
35H
30H
⑥
End code
ETX
03H
⑦
BCC data: Request
65H
Response
06H
⑧
Acknowledge code
ACK
06H
Response message from the product
02 30 31 52 50 56 31 03 65
①
③
④
⑥ ⑦
St
art
c
od
e
Re
qu
e
st
to
re
ad
Ide
n
ti
fi
c
ati
on
c
od
e
En
d
c
od
e
BCC
data
②
A
dd
re
ss
02 30 31 06 50 56 31 30 30 32 35 30 03 06
①
⑧
④
⑤
⑥ ⑦
St
art
c
o
de
Aff
irmat
io
n
c
o
de
Id
e
n
ti
fi
c
ation
c
o
de
N
u
meri
c
al
d
ata
End
c
o
de
BC
C
d
ata
②
Add
re
ss
