SMC Networks HRS012-W, Руководство по эксплуатации

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HRX-OM-M091
Chapter 5 Simple communication protocol function
5.5 Message configuration HRS Series
5-14
The communication example is expressed in hexadecimal value with
[ ]. The actual communication is performed with ASCII co
de.
Refer to
the request / response message in this section
.
5.5.2 Message example
The example shows communication with the conditions below.
○
Slave Address
：
No.1
○ Read seven consecutive data from register 0000h
.
(Read circulating fluid discharge temperature.)
„
Communication example
Request message Response message
Code Contents Code Contents
01 Slave Address 01 Slave Address
R Request message to read [ACK] Normal response message
PV1 Circulating fluid discharge temperature PV1 Circulating fluid discharge temperature
[65h] BCC value 00187 Read information
[0Fh] BCC value
„
Request message (Master to Slave)
STX
Slave
Address
Request Command ETX BCC
02 30 31 52 50 56 31 03 65
„
Response message (Slave to Master)
STX
Slave
Address
ACK Command Reading data ETX BCC
02 30 31 06 50 56 31 30 30 31 38 37 03 0F
This product
(Request): [STX] 01RPV1 [ETX] [65h]
(Response): [STX] 01[ACK] PV100187 [ETX] [0Fh]
Your system
Data is sent and
received in ASCII
code.