SONBEST SM1010C CAN Interface Industrial Temperature and Humidity Acquisition Module User Manual

User Manual for SONBEST models including: SM1010C, CAN Interface Industrial Temperature and Humidity Acquisition Module

CAN interface industrial temperature and humidity acquisition module

CAN interface industrial temperature and humidity acquisition module-SM1010C product

SM1010C CAN interface industrial temperature and humidity acquisition module

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SM1010C

SM1010C Us er Ma nual

http://www.sonbus.com/

SM1010C CAN interface industrial temperature and humidity acquisition
module
User Manual
File Version: V22.1.20

SM1010C using the standard CAN Bus,easy access to PLCDCS and other instruments or systems for monitoring temperature,humidity 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

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Technical parameter Brand Temperature measuring range Temperature measuring accuracy Humidity measuring range Humidity accuracy Communication Interface Default rate Power Running temperature Working humidity

Parameter value SONBEST -30~80 ±0.5 @25 0~100%RH ±3%RH @25 CAN 250kbps DC9~24V 1A -40~80°C 5%RH~90%RH

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.
Communication Protocol

The product uses the CAN2.0B standard frame format. The standard frame information is 11 bytes,

including two parts of information and the first 3 bytes of the data part are the information part. The default

node number is 1 when the device leaves the factory, which means The text identification code is

ID.10-ID.3 in the CAN standard frame, and the default rate is 50k. If other rates are re quired, they can be

modified according to the communication protocol.

The device can directly work with various CAN converters or USB acquisition modules. Users can also

choose our industrial-grade USB-CAN converters (as shown in the figure above). The basic format and

composition of the standard frame are as follows As shown in the table.

Byte 1 FF

FTR

DLC.3 DLC.2 DLC.1 DLC.0

Byte 2 ID.10

ID.9

ID.8

ID.7

ID.6

ID.5

ID.4

ID.3

Byte 3 ID.2

ID.1

ID.0

Byte 4 d1.7

d1.6

d1.5

d1.4

d1.3

d1.2

d1.1

d1.0

Byte 5 d2.7

d2.6

d2.5

d2.4

d2.3

d2.2

d2.1

d2.0

Byte 6 d3.7

d3.6

d3.5

d3.4

d3.3

d3.2

d3.1

d3.0

Byte 7 d4.7

d4.6

d4.5

d4.4

d4.3

d4.2

d4.1

d4.0

Byte 11 d8.7

d8.6

d8.5

d8.4

d8.3

d8.2

d8.1

d8.0

Byte 1 is the frame information. The 7th bit (FF) indicates the frame format, in the extended frame,

FF=1; the 6th bit (RTR) indicates the type of the frame, RTR=0 indicates the data frame , RTR=1 means

the remote frame; DLC means the actual data length in the data frame. Bytes 2~3 are valid for 11 bits of

the message identification code. Bytes 4~11 are the actual data of the data frame, invalid for the remote

frame . For example, when the hardware address is 1, as shown in the figure below , the frame ID is 00 00

00 01, and the data can be responded by sending the correct command.

1. Query data

Example: To query all 2 data of 1# device channel 1, the host computer sends the command: 01 03 00

00 00 02.

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Frame type

CAN frame ID mapping

function code starting

data length

address

00 01

00 00

Response frame: 01 03 04 07 3A 0F 7D.

Frame type

CAN frame ID mapping

function code data length

data

address

Response

00 00

08 AD 0F 7D

frame

In the query response of the above example: 0x03 is the command number, 0x4 has 4 data, the first

data is 08 AD converted into decimal system: 2221, because the module resolution is 0.01, this The value

needs to be divided by 100, that is, the actual value is 22.21 degrees. Each data occupies two bytes, that is,

an integer variable. The actual value needs to be divided by 100 on the basis of this value. Similarly, 0F 7D

is the second data. Its value is 3965, that is, the true value is 39.65.

2. Change Frame ID

You can use the master station to reset the node number by command. The node number ranges from

1 to 200. After resetting the node number, you must reset the system. Because the communication is in

hexadecimal format, the data in the table Both are in hexadecimal format.

For example, if the host ID is 00 00 and the sensor address is 00 01, the current node 1 is changed to

the 2nd. The communication message for changing the device ID is as follows: 01 06 0B 00 00 02.

Frame type

Frame ID

Set Address Function id

fixed value

target frame ID

Command

00 01

0B 00

00 02

Return frame after correct setting: 01 06 01 02 61 88. The format is as shown in the table below.

Frame ID

Set Address Function id

source frame current frame CRC16

00 00

61 88

The command will not respond correctly. The following is the command and reply message to change

the Set Address to 2.

3. Change device rate

You can use the master station to reset the device rate through comm ands. The range of the rate

number is 1~15. After resetting the node number, the rate will take effect immediately. Because the

communication is in hexadecimal format, the rate in the table The numbers are in hexadecimal format.

Rate value

actual rate

rate value

actual rate

20kbps

25kbps

40kbps

50kbps

100kbps

125kbps

200kbps

250kbps

400kbps

500kbps

800kbps

33.33kbps

66.66kbps

The rate not in the above range is not currently supported. If you have special requirements, you can

customize it. For example, the device rate is 250k, and the number is 08 according to the above table. To

change the rate to 40k, the number of 40k is 03, the operation communication message is as follows: 01 06

00 67 00 03 78 14, as shown in the figure below.

After the rate modification is performed, the rate will change immediately, and the device will not return

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any value. At this time, the CAN acquisition device also needs to switch the corresponding rate to

communicate normally.

4. Return frame ID and rate after power-on

After the device is powered on again, the device will return the corresponding device address and rate

information. For example, after the device is powered on, the reported message is as follows: 01 25 01 05

D1 80.

Frame ID

device

function code current frame current rate

CRC16

address

00 00

00 01

D1 80

In the response frame, 01 indicates that the current frame ID is 00 01, and the speed rate value 05

indicates that the current rate is 50 kbps, which can be obtained by looking up the table.

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 intel lectual 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 noti ce.

Company: Shanghai Sonbest Industrial Co., Ltd

Address:Building 8,No.215 North east road,Baoshan District,Shanghai,China

Web: http://www.sonbest.com

Web: http://www.sonbus.com

SKYPE: soobuu

Email: sale@sonbest.com

Tel: 86-021-51083595 / 66862055 / 66862075 / 66861077

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References

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