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                SM1635B-1    Us er Ma nual                   

http://www.sonbus.com/ 

Sha nghai Son

best Industrial Co., Ltd                                                                             Page1

 

 

SM1635B-1 

RS485 current acquisition transmitter 

User Manual   

 

File Version: V21.3.24

   

        SM1635B-1 using the standard   RS485 bus MODBUS-RTU protocol,easy access to PLC

DCS and 

other instruments or systems for monitoring 4-20MAcurrent state quantities.The internal use of 

high-precision sensing core and related devices to ensure high reliab ility 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 

Summary of Contents for SM1635B-1

Page 1: ...ODBUS RTU protocol easy access to PLC DCS and other instruments or systems for monitoring 4 20MAcurrent 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 ...

Page 2: ...exadecimal sending example Query 1 device 1 data the host computer sends the command 01 03 00 00 00 01 84 0A Device ID Function id Start Address Data Length CRC16 01 03 00 00 00 01 84 0A For the correct query frame the device will respond with data 01 03 02 00 79 79 A6 the response format is parsed as follows Device ID Function id Data Length 数据 1 Check Code 01 03 02 00 79 79 A6 Data Description T...

Page 3: ...2 E8 27 Response should be in the data after the modification is successful the first byte is the new device address After the general device address is changed it will take effect immediately At this time the user needs to change the query command of the software at the same time 4 Read and Modify Baud Rate 1 Read baud rate The device default factory baud rate is 9600 If you need to change it you...

Page 4: ... 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 humidity have this parameter the light generally does not have this item 2 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 ...

Page 5: ...SM1635B 1 User Manual http www sonbus com ShanghaiSonbest Industrial Co Ltd Page5 Tel 86 021 51083595 66862055 66862075 66861077 ...

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