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How to Connect an RS485 Sensor to a Collector and Transmit Data to the Cloud Platform?

Time:2025-08-11 21:37:54 Popularity:8

How to Connect an RS485 Sensor to a Collector and Transmit Data to the Cloud Platform 

1. Modify the Slave Address of the Device  

   - Using Configuration Software: Many RS485 sensors and devices provide dedicated configuration software, which typically connects to the sensor via a PC, using a serial or USB-to-RS485 adapter to modify the slave address. After connecting to the software, select the option to modify the address and enter the new slave address.

   - Using Debugging Tools: Use Modbus debugging tools (such as ModScan, Modbus Poll, etc.) to communicate with the sensor and use commands to modify the slave address, usually by sending a write command to update the device address.

   - Modifying the Address via Modbus Protocol (if supported): If the device supports Modbus RTU protocol, you can modify the device’s slave address by sending specific Modbus commands using a Modbus Master tool.   

   Note:  

   When modifying the address, ensure that the new address does not conflict with other devices. Also, verify that the communication settings (such as baud rate) match between the device and the Modbus Master tool.  

   In practice, the Modbus address register and procedure may vary depending on the device. Always refer to the device manual for specific instructions. 

   This method allows you to easily modify the slave address of the device via the Modbus RTU protocol.

Reference link:How to connect RS-485 sensor device to PC?

https://www.niubol.com/Technical-Support/How-to-connect-RS-485-sensor-device-to-PC.html

Reference link: RS485 Sensor Device Address Change

https://www.niubol.com/Technical-Support/Change-the-sensor-device-address.html

Reference link: Connect the NiuBoL sensor to the Thinger IoT platform.

https://www.niubol.com/Technical-Support/NiuBoL-Sensor-to-Thinger-IoT-Platform-via-MQTT.html

2. Connecting the RS485 Sensor to the Collector(data logger)

   - Use standard RS485 cables to connect the sensor to the data collector. RS485 typically has two data lines (A and B) and two power lines. Ensure that you follow the wiring diagram for both the sensor and the collector.

   - Confirm that the collector's RS485 interface supports the sensor’s communication protocol and that the sensor's communication address and baud rate are correctly configured. 

Reference link: RS485 interface sensor wiring method 

https://www.niubol.com/Technical-Support/RS485-interface-sensor-wiring-method.html

https://www.niubol.com/Technical-Support/RTU-How-to-collect-multiple-sensor-signals.html

https://www.niubol.com/Technical-Support/Multiple-RS485-sensors-connected-to-an-industrial-router.html

3. Transmit Data to the Collector  

   - The data collector will read data from the sensor over the RS485 bus, and will connect to other devices via a serial or Ethernet interface. Typically, the collector will use the Modbus RTU protocol or other industrial protocols to exchange data.

   - Ensure that the collector can properly interpret and store the sensor's data. 

4. Transmit Data to the Cloud Platform  

   - Use a gateway that supports internet connectivity (such as a Modbus gateway or serial-to-TCP gateway) to connect the data collector to the internet. The gateway will transmit the collected data to the cloud platform via Wi-Fi, Ethernet, or cellular network.

   - The cloud platform must provide an API interface to receive data, and data transmission can be done via protocols like HTTP or MQTT. Based on the collector's settings, the data will be uploaded to the cloud platform for storage and analysis. 

Reference link: NiuBoL sensor interfaces with the akenza.io platform 

https://www.niubol.com/Technical-Support/sensor-interfaces-with-akenza-platform-via-MQTT-protocol.html

5. How to Use Our System  

   We provide an all-in-one solution to help you easily transmit data from the collection point to the cloud platform. Through our platform, you can monitor device status in real time, analyze data, and improve production efficiency and management capabilities. 

Reference link: RS485 sensor data transfer to server/cloud platform 

https://www.niubol.com/Technical-Support/RS485-sensor-data-transfer-to-server/cloud-platform.html

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