sonbus SM6363B Small weather station shutters multi function sensor User Manual

: June 5, 2024
: SONBUS

Table of Contents

Sonbus SM6363B Small weather station shutters multi-function sensor
Technical Parameters
Product Size
How to wiring?
Application solution
How to use it?
Communication Protocol
Read Correction Value
Contact Us
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Sonbus SM6363B Small weather station shutters multi-function sensor

sonbus SM6363B Small weather station shutters multi function
sensor

SM6363B uses the standard RS485 bus MODBUS RTU protocol, and easy access to PLC DCS and other instruments or systems for monitoring temperature, humidity, carbon dioxide, and atmospheric pressure 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,DC0~5V 10V,ZIGBEE,Lora,WIFI,GPRS and other output methods.

Technical Parameters

Technical parameter	Parameter value
Brand	SONBEST
Temperature measuring range	-30℃~80℃
Temperature measuring accuracy	±0.5℃ @25℃
CO2 range	0~5000ppm
CO2 accuracy	±100ppm
Atmospheric pressure range	30~110kpa
Atmospheric pressure accuracy	±0.5%
Communication Interface	RS485
Default baud rate	9600 8 n 1
Power	DC9~24V 1A
Running temperature	-40~80°C
Working humidity	5%RH~90%RH

Product Size

sonbus SM6363B Small weather station shutters multi function sensor FIG
1

How to wiring?

sonbus SM6363B Small weather station shutters multi function sensor FIG
2

Application solution

sonbus SM6363B Small weather station shutters
multi function sensor FIG 3

How to use it?

sonbus SM6363B Small weather station shutters multi function sensor FIG
5

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 is shipped, the default baud rate is 9600, 8, n, 1

Read Data (Function id 0x03)
Inquiry frame (hexadecimal), sending example: Query 1# device 1 data, the host computer sends the command:01 03 00 00 00 04 44 09 .

Device ID	Function id	Start Address	Data Length	CRC16
01	03	00 00	00 04	44 09

For the correct query frame, the device will respond with data:01 03 08 00 7C 00 00 00 00 00 00 28 10 , the response format is parsed as follows:

Device ID| Function id| Data

Length

Code

---|---|---|---|---|---|---|---
01| 03| 08| 00 79| 00 7A| 00 7B| 00 7C| 28 10

Data Description: The data in the command is hexadecimal. Take data 1 as an example. 00 79 is converted to a decimal value of 121. If the data magnification is 100, the actual value is 121/100=1.21.
Others and so on.

Data Address Table

Address	Start Address	Description	Data type	Value range
40001	00 00	temperature	Read Only	0~65535
40002	00 01	humidity	Read Only	0~65535
40003	00 02	carbon dioxide	Read Only	0~65535
40004	00 03	atmospheric

pressure

| Read Only| 0~65535
40101| 00 64| model code| read/write| 0~65535
40102| 00 65| total points| read/write| 1~20
40103| 00 66| Device ID| read/write| 1~249
40104| 00 67| baud rate| read/write| 0~6
---|---|---|---|---
40105| 00 68| mode| read/write| 1~4
40106| 00 69| protocol| read/write| 1~10

read and modify device address
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 use the command FA 03 00 64 00 02 90 5F Query device address.

Device ID	Function id	Start Address	Data Length	CRC16
FA	03	00 64	00 02	90 5F

FA is 250 for the general address. When you don’t know the address, you can use 250 to get the real device address, 00 64 is the device model register.
For the correct query command, the device will respond, for example, the response data is: 01 03 02 07 12 3A 79, the format of which is as shown in the following table:

Device ID	Function id	Start Address	Model Code	CRC16
01	03	02	55 3C 00 01	3A 79
Device ID	Function id	Start Address	Destination	CRC16
---	---	---	---	---
01	06	00 66	00 02	E8 27
Device ID	Function id	Data Length	Rate ID	CRC16
---	---	---	---	---
01	03	02	00 03	F8 45

Change the baud rate
For example, changing the baud rate from 9600 to 3 8400, ie changing the code from 3 to 5, the command is: 01 06 00 67 00 05 F8 1601 03 00 66 00 01 64 15 .

Device ID	Function id	Start Address	Target Baud Rate	CRC16
01	03	00 66	00 01	64 15

Change the baud rate from 9600 to 38400, changing the code from 3 to 5. The new baud rate will take effect immediately, at which point the device will lose its response and the baud rate of the device should be queried accordingly. Modified.

Read Correction Value

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 to be plus or minus 1000, t hat is, the value range is 0 1000 or 64535 65535. For example, when the display value is too small, we can correct it by adding 100. The command is: 01 03 00 6B 00 01 F5 D6 . In the command 100 is hex 0x64 If you need to reduce, you can set a negative value, such as 100, corresponding to the hexadecimal value ofFF 9C, which is calculated as 100 65535=65435, and then converted to hexadecimal to 0x FF 9C. The correction value starts from 00 6B. We take the first parameter as an example. The correction value is read and modified in the same way for multiple parameters.

Device ID	Function id	Start Address	Data Length	CRC16
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, the format of which is as shown in the following table:

Device ID	Function id	Data Length	Data value	CRC16
01	03	02	00 64	B9 AF

In the response data, the first byte 01 indicates the real address of the current device, and 00 6B is the first state quantity correction value register. If the device has multiple parameters, other parameters
operate in this way. The same, the general temperature, and humidity have this parameter, the light generally does not have this item.

Change correction value
For example, the current state quantity is too small, we want to add 1 to its true value, and the current value plus 100 correction operation command is:01 06 00 6B 00 64 F9 FD.

Device ID	Function id	Start Address	Destination	CRC16
01	06	00 6B	00 64	F9 FD

After the operation is successful, the device will return information: 01 06 00 6B 00 64 F9 FD, the parameters take effect immediately after a successful change.

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 product, 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.