HRX-OM-M091
Chapter 4 MODBUS communication function
HRS Series
4.8 Explanation of function codes
4-13
4.8.3 Function
code
:
16 Writing multiple registers
Register content of assigned points of assigned address is written.
Request message <Normal> (Master to Slave)
Start Slave
Address
Function
Data
LRC
End
[:] XX XX [1] [0]
XX XX
[CR]
[LF]
Write Address
Quantity to Write
Hi Lo Hi Lo
XX
XX
XX
XX
XX
XX
XX
XX
Write Data1
Write Data n
Byte Count
Hi Lo
Hi Lo
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
Response message <Normal> (Slave to Master)
Start Slave
Address
Function
Data
LRC
End
[:] XX XX [1] [0]
XX XX [CR]
[LF]
Write Address
Quantity to Write
Hi Lo Hi Lo
XX
XX
XX
XX
XX
XX
XX XX
Communication example
○
Slave Address: No 1
○
Write two consecutive data from register 000Bh
.
(Commands to change of circulating fluid set temperature <39.9
o
C > and run.)
Request message
Response message
Code
Contents
Code
Contents
01
Slave Address
01
Slave Address
10 Function
10 Function
000B
Head address of specified register
000B
Head address of register to write
0002
Quantity of register to write
0002
Quantity of register to write
04
Quantity of byte to read
E2
LRC
018F
Information written to 000Bh (Circulating
fluid set temperature)
0001
Information written to 000Ch (Stop flag)
4D LRC
(Request):0110000B000204018F00014D [CR][LF]
(Response):0110000B0002E2 [CR][LF]
Your system
This product
Data is sent and
received in ASCII
code.
Содержание HRS012-W
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