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1 2 3 4 5 6 7
0xC8 0xB9 0xD2
Meter ADD Function ID Data byte
number
Data1
high
Client normal answer(Read multi-register
）
Data1
low
CRC code
low bit
CRC code
low bit
0x01 0x03 0x02
0x00
Function ID abnormal answer:
（
For example:host request ADD is 0x2011
）
1 2 3 4 5
0x01 0x83 0x02 0xC0 0xF1
Meter ADD Function ID
Error code
Client abnormal answer(Read multi-register)
CRC code low CRC code high
1 2 3 4 5 6 7 8 9 10 11
0x01 0x10 0x20 0x00 0x00 0x01 0x02 0x00 0x96
2
、
Write multi-register
Host request
（
write multi-register
）
For example:Host write float integer SV
（
setting value 150
）
ADD code of SV is 0x2000,because SV is integer(2 dyte),seizes 1 data register.The memory code of decimal integer 150 is 0x0096.
Data location error response:(For example:Host request the ADD index is 0x200F)
1 2 3 4 5
0x01 0x90 0x03 0x0C 0x01
Meter ADD Function ID
Error code
Abnormal response(Write multi-register)
CRC low
CRC high
Data
high
Meter ADD
Start ADD
High bit
Start ADD
Low bit
Data byte
Length/
high bit
Data byte
Length/
high bit
Data byte
length
Function ID
Data
low
CRC code
low bit
CRC code
high bit
0x07
0xFC
Address Mapping Table of Meter Parameters
0x2000
0x2001
0x2002
0x2003
0x2004
0x2005
0x2006
0x2007
0x2008
0x2009
0x200A
1
2
3
4
5
6
7
8
9
10
11
Set value SV
1st loop alarm AL1
1st loop alarm backlash HY1
2nd loop alarm AL2
2nd loop alarm backlash HY2
Display low limit FL
Display high limit FH
Analog output low limit BRL
Analog output high limit BRH
Control output low limit OLL
No decimal point
No decimal point
No decimal point
Default with
1 decimal point
Control output high limit OLH
No.
ADD mapping
Variable name
Register
Read/write
Remark
1
1
1
1
1
1
1
1
1
1
1
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0x200B
0x200C
0x200D
0x200E
0x200F
0x2010
12
13
14
15
16
17
Heat & Cool control dead zone DB
Overshoot limit OVS
Proportional coefficient of cooling PC
Translation correct PS
Dispaly fuzzy tracking value DTR
Measure value PV
1
1
1
1
1
R/W
1
R/W
R/W
R/W
R
R
