Technical Parameters
|
Technical parameter |
Parameter value |
|
Brand |
XUNCHIP |
|
Noise range |
30~130dB |
|
Noise accuracy |
±3% |
|
Interface |
RS485/4-20mA/DC0-10V |
|
Power |
DC5~24V 1A |
|
Power |
DC12~24V 1A |
|
Running temperature |
-30~85℃ |
|
Working humidity |
5%RH~90%RH |
Product Selection
Product DesignRS485,4-20mA,DC0-10VMultiple output methods, the products are divided into the following models depending on the output method.
|
Product model |
output method |
|
XM8165B |
RS485总线 |
|
XM8165M |
4-20mA |
|
XM8165V10 |
DC0-10V |
Product Size
Why choose this product?
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Communication Protocol
The product uses RS485 MODBUS-RTU standard protocol format, all operation or reply commands are hexadecimal data. The default device address is 1 when the device leaves the factory, and the module or NON-Recorder default baud rate is 9600,8,n,1 ,but data recorder default baud rate is 115200 .
1. Read data (function code 0x03)
Inquiry frame (hexadecimal), sending example: query 1 data of 1# device, the upper computer sends the command: 01 03 00 00 00 01 84 0A .
|
Address |
Function Code |
Start Address |
Data Length |
Check Code |
|
01 |
03 |
00 00 |
00 01 |
84 0A |
For the correct query frame, the device will respond with data: 01 03 02 00 79 79 A6 , response format:
|
Address |
Function Code |
Length |
Data 1 |
Check Code |
|
01 |
03 |
02 |
00 79 |
79 A6 |
Data description: The data in the command is hexadecimal, take data 1 as an example, 00 79 is converted to decimal value as 121, assuming the data magnification is 100, then the real value is 121/100=1.21, Others and so on.
2. Common data address table
|
Configuration Address |
Register Address |
Register Description |
Data Type |
Value Range |
|
40001 |
00 00 |
noise |
Read Only |
0~65535 |
|
40101 |
00 64 |
Model Code |
Read/Write |
0~65535 |
|
40102 |
00 65 |
total number of measuring points |
read/write |
1~20 |
|
40103 |
00 66 |
device address |
read/write |
1~249 |
|
40104 |
00 67 |
baud rate |
read/write |
0~6 |
|
40105 |
00 68 |
communication mode |
read/write |
1~4 |
|
40106 |
00 69 |
protocol type |
read/write |
1~10 |
For example, the range is 30~130dB, the analog output is 4~20mA current signal, noise and current The calculation relationship is as shown in the formula: C = (A2-A1) * (X-B1) / (B2-B1) + A1, where A2 is noise range upper limit, A1 is the lower limit of the range, B2 is current output range upper limit, B1 is the lower limit, X is the currently read noise value, and C is the calculated current value. The list of commonly used values is as follows:
|
current(mA) |
noiseValue (dB) |
Calculation Process |
|
4 |
30.0 |
(130-30)*(4-4)÷(20-4)+30 |
|
5 |
36.3 |
(130-30)*(5-4)÷(20-4)+30 |
|
6 |
42.5 |
(130-30)*(6-4)÷(20-4)+30 |
|
7 |
48.8 |
(130-30)*(7-4)÷(20-4)+30 |
|
8 |
55.0 |
(130-30)*(8-4)÷(20-4)+30 |
|
9 |
61.3 |
(130-30)*(9-4)÷(20-4)+30 |
|
10 |
67.5 |
(130-30)*(10-4)÷(20-4)+30 |
|
11 |
73.8 |
(130-30)*(11-4)÷(20-4)+30 |
|
12 |
80.0 |
(130-30)*(12-4)÷(20-4)+30 |
|
13 |
86.3 |
(130-30)*(13-4)÷(20-4)+30 |
|
14 |
92.5 |
(130-30)*(14-4)÷(20-4)+30 |
|
15 |
98.8 |
(130-30)*(15-4)÷(20-4)+30 |
|
16 |
105.0 |
(130-30)*(16-4)÷(20-4)+30 |
|
17 |
111.3 |
(130-30)*(17-4)÷(20-4)+30 |
|
18 |
117.5 |
(130-30)*(18-4)÷(20-4)+30 |
|
19 |
123.8 |
(130-30)*(19-4)÷(20-4)+30 |
|
20 |
130.0 |
(130-30)*(20-4)÷(20-4)+30 |
As shown in the above formula, when measuring 8mA, current current is 29dB。
For example, the range is 30~130dB, the analog output is 0~10V DC0-10Vvoltage signal, noise and DC0-10Vvoltage The calculation relationship is as shown in the formula: C = (A2-A1) * (X-B1) / (B2-B1) + A1, where A2 is noise range upper limit, A1 is the lower limit of the range, B2 is DC0-10Vvoltage output range upper limit, B1 is the lower limit, X is the currently read noise value, and C is the calculated DC0-10Vvoltage value. The list of commonly used values is as follows:
|
DC0-10Vvoltage(V) |
noiseValue (dB) |
Calculation Process |
|
0 |
30.0 |
(130-30)*(0-0)÷(10-0)+30 |
|
1 |
40.0 |
(130-30)*(1-0)÷(10-0)+30 |
|
2 |
50.0 |
(130-30)*(2-0)÷(10-0)+30 |
|
3 |
60.0 |
(130-30)*(3-0)÷(10-0)+30 |
|
4 |
70.0 |
(130-30)*(4-0)÷(10-0)+30 |
|
5 |
80.0 |
(130-30)*(5-0)÷(10-0)+30 |
|
6 |
90.0 |
(130-30)*(6-0)÷(10-0)+30 |
|
7 |
100.0 |
(130-30)*(7-0)÷(10-0)+30 |
|
8 |
110.0 |
(130-30)*(8-0)÷(10-0)+30 |
|
9 |
120.0 |
(130-30)*(9-0)÷(10-0)+30 |
|
10 |
130.0 |
(130-30)*(10-0)÷(10-0)+30 |
As shown in the above formula, when measuring 5V, current DC0-10Vvoltage is 50dB。
software for test product
After downloading, please read the readme.txt documentation