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SM1911B Us er Ma nual
SM1911B
RS485 interface temperature and humidity sensor
User Manual
File Version: V22.1.17
SM1911B 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 SM1911B
- Page 1 User Manual File Version: V22.1.17 SM1911B 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 SM1911B Us er Ma nual Brand SONBEST Temperature measuring range -30℃~80℃ ±0.5℃ @25℃ Temperature measuring accuracy Humidity measuring range 0~100%RH ±3%RH @25℃ Humidity accuracy Communication Interface RS485 Default baud rate 9600 8 n 1 Power DC9~24V 1A Running temperature -40~80°...
- Page 3 SM1911B Us er Ma nual 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 40105 00 68 mode read/write 40106 00 69...
- Page 4 SM1911B Us er Ma nual Device ID Function id Data Length Rate ID CRC16 00 03 F8 45 coded according to baud rate, 03 is 9600, ie the current device has a baud rate of 9600. (2)Change the baud rate For example, changing the baud rate from 9600 to 38400, 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 .
- Page 5 SM1911B Us er Ma nual 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 Company: Shanghai Sonbest Industrial Co., Ltd Address:Building 8,No.215 North east road,Baoshan District,Shanghai,China Web: http://www.sonbest.com...
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