SONBEST SM2113B User Manual
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SONBEST SM2113B User Manual

Rs485 temperature and humidity sensor
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SM2113B Us er Ma nual
SM2113B
RS485 temperature and humidity sensor
User Manual
File Version: V21.3.24
SM2113B using the standard RS485 bus MODBUS-RTU protocol,easy access to PLC，DCS 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 r eliability 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
best Industrial Co., Ltd
Page1
Sha nghai Son

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Summary of Contents for SONBEST SM2113B

  • Page 1 User Manual File Version: V21.3.24 SM2113B using the standard RS485 bus MODBUS-RTU protocol,easy access to PLC，DCS 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 r eliability and excellent long-term stability,can be customized RS232,RS485,CAN,4-20mA,DC0~5V\10V,ZIGBEE,Lora,WIFI,GPRS and other output methods.
  • Page 2 SM2113B Us er Ma nual Brand SONBEST Temperature measuring range -30℃~80℃ ±0.5℃ @25℃ Temperature measuring accuracy Support sensor SHT20 Channels Input bus Humidity measuring range 0~100%RH ±3%RH @25℃ Humidity accuracy Communication Interface RS485 Default baud rate 9600 8 n 1...
  • Page 3 SM2113B Us er Ma nual 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 1.
  • Page 4 SM2113B Us er Ma nual Device ID Function id Start Address Destination CRC16 00 66 00 02 E8 14 After the change is successful, the device will return information: 02 06 00 66 00 02 E8 27 , its format...
  • Page 5 SM2113B Us er Ma nual 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...

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