SMC Networks HRS012-A Operation Manual page 47

Communication example
Your system
(Request):011700040003000B000204009B000134 [CR][LF]
(Response):011706000000000000E2 [CR][LF]
Request message
Code
01 Slave Address
17 Function
0004 Head address of specified register
0003 Quantity of register to read
000B Head address of specified register
0002 Quantity of register to write
04 Quantity of byte to write
Information written to 000Bh (Circulating
009B
fluid set temperature)
0001 Information written to 000Ch (Stop flag)
34 LRC
HRS Series
○Slave Address: No 1
○Read three consecutive data from register 0004h, and write two
consecutive data from register 000Bh.
(Command to change the circulating fluid set temperature to <15.5
and read status and alarm information.)
Contents
Chapter 4 MODBUS communication function
Response message
Code
01 Slave Address
17 Function
06 Quantity of byte to read
0000 Information of 0004h (Status flag）
0000 Information of 0005h (Alarm flag 1)
0000 Information of 0006h (Alarm flag 2)
E2 LRC
HRX-OM-M091
o
C>,
This product
Data is sent and
received in ASCII
code.
Contents
4.8 Explanation of function codes
4-15