Chino KR2S, Инструкция по эксплуатации

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INST.No.INE-863B KR2S
【
Communication Interface
】
Instruction Manual
-33-
7-5-3
Reading of analog setting values (Reading of maintenance register contents)
Function code : 03 [03H]
“Analog setting values (2 bytes: 16 bits) with the continuous numbers” are read for the number of
data specified from the start number specified. The data is arranged by splitting into higher 8 bits
and lower 8 bits in numerical order and configures a data of the response message.
Example) Reading of the range high/low limits and the decimal point of Channel 1 of the slave 2
(Reading of 3 analog setting value reference numbers from 40104 to 40106 of the slave 2)
Reference
number
40104 40105 40106
Data
0
（
0000H
）
1000
（
03E8H
）
1
（
0001H
）
<RTU mode>
Master → Instrument Master → Instrument
Slave address 02H Slave address 02H
Function code 03H Function code 03H
Start No. (H) 00H Data pieces 06H
End No. (L) 67H Low limit value data (H) 00H
Number of data (H) 00H Low limit value data (L) 00H
Number of data (L) 03H High limit value data (H) 03H
CRC (L) B4H High limit value data (L) E8H
CRC (H) 27H Decimal point data (H) 00H
Decimal point data (L) 01H
CRC (L) 74H
CRC (H) 35H
<ASCII mode error check>
Error check: The CRC (L) and the CRC (H) parts are as follows.
LRC 91H LRC 09H
*The start number (Relative number) is “Reference number - 40001”.
(Decimal 103 (= 40104 - 40001) → Hexadecimal 67H)
*The data pieces are the number of bytes of data.
(It differs from the number of data requested. In the example, the requested number of data is 3 and
the data pieces are 6.)
*There is a limitation on the data pieces for the message (that this unit can transmit) that can be
received at a time. (Refer to Para. 7.4)
7-5-4
Reading of analog input data (Reading of input register contents)
Function code : 04 [04H]
“Analog input data (2 bytes: 16 bits) with the continuous numbers” are read for the number of data
specified from the start number specified. The data is arranged by splitting into higher 8 bits and
lower 8 bits in numerical order and configures a data of the response message. The response
example is same as “Function code 03”, but the start number (Relative number) is “Reference
number – 30001”.
Data example 0.0 to 100.0