XUNCHip XM91 Rail Type Analog Acquisition Module User Manual
- September 5, 2024
- XUNChip
Table of Contents
XM91 Rail Type Analog Acquisition Module
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Product Information
Specifications
XM91 Rail-type analog acquisition module
- Brand: XUNCHIP
- Input Signal: DC0~10V voltage
- Communication Interface: RS485
- Default Baud Rate: 9600
- Power: DC5~24V 1A
- Running Temperature: -30°C to 85°C
- Working Humidity: 5%RH to 90%RH
Product Usage Instructions
Wiring Instructions
In case of broken wires, wire the wires as shown in the figure.
If the product itself has no leads, the core color is for
reference.
How to Use?
Ensure the device is connected correctly as per wiring
instructions. Configure the communication settings based on the
provided specifications.
Communication Protocol
The product uses RS485 MODBUS-RTU standard protocol format. The
default device address is 1, and the default baud rate is 9600.
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 02 C4
0B.
2. Common Data Address Table
Configuration Register Address Register Data Type: [To be filled
with specific data type information]
FAQ
Q: How do I configure the communication settings of XM91?
A: To configure the communication settings, refer to the
specifications provided in the user manual. Ensure you set the
correct baud rate and device address based on your
requirements.
Q: What is the default device address of XM91?
A: The default device address of XM91 is 1 when it leaves the
factory.
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XM91 Us er Ma nual
XM91 Rail-type analog acquisition module
User Manual
File Version: V23.12.26
XM91 using the standard RS485 bus MODBUS-RTU protocol,easy access to PLCDCS
and other instruments or systems for monitoring DC10Vvoltage,DC10Vvoltage
state quantities.The internal use of high-precision sensing core and related
devices to ensure high reliability and excellent long-term stability,can be
customized RS232,RS485,CAN,4-20mA,DC0~5V10V,ZIGBEE,Lora,WIFI,GPRS and other
output methods.
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Technical Parameters
Technical parameter Brand Input Signal Input Signal Communication Interface
Default baud rate Power Running temperature Working humidity
Product Size
http://www.xunchip.com/
Parameter value XUNCHIP DC0~10V voltage DC0~10V voltage RS485 9600 8 n 1
DC5~24V 1A -30~85 5%RH~90%RH
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Wiring instructions
In the case of broken wires, wire the wires as shown in the figure. If the
product itself has no leads, the core color is for reference.
How to use?
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Application solution
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Product List
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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 02 C4 0B .
Address
Function Code
Start Address
Data Length
Check Code
01
03
00 00
00 02
C4 0B
For the correct query frame, the device will respond with data: 01 03 0 4 00 7A 00 00 DB EA , response
format:
Address
Function
Length
Data 1
Data 2
Check Code
Code
01
03
04
00 79
00 7A
DB EA
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
Register Address Register
Data Type
Value Range
Address
Description
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40001
00 00
DC10Vvoltage
Read Only
0~65535
40002
00 01
DC10Vvoltage
Read Only
0~65535
40101
00 64
Model Code
Read/Write
0~65535
40102
00 65
total number of
read/write
1~20
measuring points
40103
00 66
device address
read/write
1~249
40104
00 67
baud rate
read/write
0~6
40105
00 68
communication
read/write
1~4
mode
40106
00 69
protocol type
read/write
1~10
3 Read and modify device address
(1) Read or query device address
If you don’t know the current device address and there is only one device on the bus, you can query
the device address through the commandFA 03 00 66 00 01 71 9E .
Device Address
Function Code
Start Address
Data Length
Check Code
FA
03
00 66
00 01
71 9E
FA means 250 is the general address, when you don’t know the address, you can use 250 to get the
real device address, 00 66 is the device address register.
For the correct query command, the device will respond, for exa mple, the response data is: 01 03 02
00 01 79 84, and its format parsing is shown in the following table:
Device Address
Function Code
Start Address
Model Code
Check Code
01
03
02
00 01
79 84
In the response data, the first byte 01 represents the real a ddress of the
current device.
(2) Change device address
For example, if the current device address is 1 and we want to change it to 02, the command is: 01 06
00 66 00 02 E8 14 .
Device Address
Function Code
Register Address Target Address
Check Code
01
06
00 66
00 02
E8 14
After the change is successful, the device will return the information: 02 06 00 66 00 02 E8 27 , and its
format analysis is shown in the following table:
Device Address
Function Code
Register Address Target Address
Check Code
02
06
00 66
00 02
E8 27
In the response data, after the modification is successful, the first byte is the new device address.
Generally, after the device address is changed, it will take effect immediately. At this time, the user needs
to change the query command of his software accordingly. .
4 Read and modify baud rate
(1) Read baud rate
The default factory baud rate of the device is 9600. If you need to change it, you can change it
according to the following table and the corresponding communication protocol. For example, to read the
baud rate ID of the current device, the command is: 01 03 00 67 00 01 35 D5 , the format is parsed as
follows.
Device Address
Function Code
Start Address
Data Length
Check Code
01
03
00 67
00 01
35 D5
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Read the baud rate code of the current device. Baud rate code: 1 is 2400; 2 is 4800; 3 is 9600; 4 is
19200; 5 is 38400; 6 is 115200.
For the correct query command, the device will respond, for example, the response data is: 01 03 02
00 03 F8 45, and its format analysis is shown in the following table:
Device Address
Function Code
Data Length
Baud Rate Code Check Code
01
03
02
00 03
F8 45
According to the baud rate code, 03 is 9600, that is, the baud rate of the current d evice is 9600.
(2) Change the baud rate
For example, change the baud rate from 9600 to 38400, that is, change the code from 3 to 5, the
command is: 01 06 00 67 00 05 F8 16 .
Device Address
Function Code
Register Address Target Baud Rate Check Code
01
06
00 67
00 05
F8 16
Change the baud rate from 9600 to 38400, that is, change the code from 3 to 5. The new baud rate will
take effect immediately, and the device will lose response at this time, and the baud rate of the device
needs to be checked accordingly Modified.
5 Read and modify correction value
(1) Read correction value
When there is an error between the data and the reference standard, we can reduce the display error
by adjusting the correction value. The correction difference can be modified in a range of plus or minus
1000, that is, the value range is 0-1000 or 64535 -65535. For example, when the displayed value is too
small by 100, we can correct it by adding 100. The command is: 01 03 00 6B 00 01 F5 D6 . In the
command, 100 is hexadecimal 0x64 ;If you need to reduce it, you can set a negative value, such as -100,
the corresponding hexadecimal value is FF 9C, the calculation method is 100 -65535=65435, and then
converted to hexadecimal, it is 0x FF 9C. Device The correction value starts from 00 6B. We take the first
parameter as an example to illustrate. When there are multiple parameters, the correction value is read
and modified in the same way.
Device Address
Function Code
Start Address
Data Length
Check Code
01
03
00 6B
00 01
F5 D6
For the correct query command, the device will respond, for example, the response data is: 01 03 02
00 64 B9 AF, and its format parsing is shown in the following table:
Device Address
Function Code
Data Length
Correction Value Check Code
01
03
02
00 64
B9 AF
In the response data, the first byte 01 represents the real address of the current device, and 00 6B is
the first state correction value register. If the device has multiple parameters, other parameters op erate in
the same way as this The same, generally temperature and humidity have this parameter, and lighting
generally does not have this parameter.
(2) Change the correction value
For example, if the current state is too small, we want to add 1 to its real value, and add 100 to the
current value. The correction operation command is: 01 06 00 6B 00 64 F9 FD .
Device Address
Function Code
Register Address Target Address
Check Code
01
06
00 6B
00 64
F9 FD
After the operation is successful, the device will return the information: 01 06 00 6B 00 64 F9 FD , after
the successful change, the parameters will take effect immediately.
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Disclaimer
This document provides all information about the product, does not grant any
license to intellectual property, does not express or imply, and prohibits any
other means of granting any intellectual property rights, such as the
statement of sales terms and conditions of this produ ct, other issues. No
liability is assumed. Furthermore, our company makes no warranties, express or
implied, regarding the sale and use of this product, including the suitability
for the specific use of the product, the marketability or the infringement
liability for any patent, copyright or other intellectual property rights,
etc. Product specifications and product descriptions may be modified at any
time without notice.
Contact Us
Brand: XUNCHIP Address: Room 208, Building 8, No. 215, Nandong Road, Baoshan
District, Shanghai, Xinxin Brand Business Department Chinese site:
http://www.xunchip.com International site: http://www.xunchip.com SKYPE:
soobuu E-mail: sale@sonbest.com Tel: 86-021-51083595 / 66862055 / 66862075 /
66861077
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