RTU Data collector Environmental data collector China Manufacturer

NBL-1 Series RTU is a type of industrial cellular remote telemetry unit, which adopts high-powered industrial 32-bits CPU, with multi-layer software detection and hardware protection mechanism to ensure reliability and stability of the device. 

It supports worldwide carrier 4G/3G/2G cellular network FDD-LTE, TDD-LTE, and HSPA/UMTS/WCDMA, EVDO, TD-SCDMA, EDGE, CDMA 1X and GPRS, to realize real time data acquisition, storage, control, alarm and transmission, as well as security of data transmission. 

NBL-1 has rich interfaces, including tipping bucket rain gauge input, gray code, RS232, RS485, SDI-12, I/O(analog input, digital input and output), etc., and it has been widely used for remote monitoring and control applications, such as, hydrology, water resources, water pollution, water treatment, reservoir dam, mountain flood disaster, geological disaster, meteorology, environmental protection, new energy resources, etc

 NBL-1 Series RTUutilizes cellular network to connect your network devices and serial port devices to your center for remote monitoring and control.

Typical application as below.

Number of ports: 4, (2x RS232, 2x RS485) 

Note: Built-in 8KV ESD protection for RS232, and 15KV ESD protection for  RS485 

Baudrate: 300~230400bits/s 

Data Bit: 5, 6, 7, 8 bits 

Stop Bit: 1, 1.5, 2 bits 

Check: No, Even-parity, Odd Parity, SPACE and MARK

Rich interface, strong scalability, to meet the intelligent collection and reporting of rainfall, water level, water quantity, water quality and other data information.

RTU local configuration, support LCD/keyboard configuration and serial port configuration.

Embedded TCP/IP protocol , standardized MOBUS protocol, can meet the complex industrial application environment applications.

Ultra-low power consumption design, with multi-level sleep and wake mode. Support self-reporting, query, compatible and other working modes. It can also meet various power supply methods such as battery, mains and solar power.

Provide 16MB data storage space, can store more than 10 years of collection data, massive space, can be stored in the local cycle monitoring data, power failure will not be lost.

Also support TF card storage, long-term storage of set parameters and historical data! 

Compatible with soil sensors, water sensors, weather sensors.

2 tipping bucket type rain gauge interfaces.

1 x 12-bit Gray Code interface.

2 RS232 interfaces, 2 RS485 interfaces.

1 SDI-12 interface.

8 analog input interfaces (16-bit AD, support for 4-20mA current or 0-5V voltage signals).

8 switch input interfaces, 2 switch output interfaces.

8 relay outputs.

3 power outputs.

RTU English full name Remote Terminal Unit, the Chinese full name remote terminal unit. Responsible for the monitoring and control of field signals, industrial equipment. Compared with the commonly used programmable controller PLC, RTU usually to have excellent communication capabilities and greater storage capacity, suitable for more severe temperature and humidity environment, to provide more computing functions.

What is the difference between RTU and DTU?

Functions of RTU data acquisition terminal:　　

1, acquisition and transmission of integrated design, cost-effective, set the traditional industrial RTU and 5G/4G/3G/2G data transmission functions in one, to achieve the acquisition, counting, control, storage, alarm and transmission and other integrated functions. It is also compatible with 5G/4G/3G/2G data transmission function. Compared with separate purchase of collector and DTU, the cost performance is high, effectively saving project investment.　　

2、Higher product reliability and stability

Integrated design of acquisition and transmission, acquisition and transmission are realized by a set of software and hardware system, which is highly reliable.　　

3、Standard and easy to use　　

Support standard Modbus RTU protocol, can directly access all kinds of configuration software, no need to invest human and material resources to separately develop the center application software. Speed up the project development progress.　

4、Rich interface　　

Provide 8-channel analog input (optional voltage or current input), 8-channel switch input (optical isolation), 4-channel switch input (optical isolation), 4-channel relay output interface. Provide RS232/485 communication interface.　　

5、Large capacity local storage　　

Large storage capacity, can be stored in the local cycle of monitoring data, power failure is not lost.　　

The difference between RTU and DTU　　

RTU =remote terminal unit Remote terminal unit　　

DTU ==data-transfer unit Data transfer unit　　

RTU is more complex than DTU, he has some control functions can have analog and switch input and output, DTU is relatively simple, if you just realize the function of data remote transmission, then only DTU can be used, RTU is also much more expensive than DTU.　　

RTU is a device with switch, analog acquisition and relay output and GPRS remote transmission function, generally used for analog and switch acquisition of the number of channels and the accuracy requirements are not high.　　

DTU is a wireless data transmission module, using 5G/4G network for remote data transmission terminal module. Its principle is to pack serial data into TCP or UDP packets for data remote transmission.

RTU is an analog acquisition terminal module, which is a device that converts analog variables into digital format after being collected by A/D.

DTU generally can only transmit standard 232, 485 data, RTU can only be converted into serial data after the acquisition of analog quantities.

DTU is a data transmission device, while RTU is a data acquisition device. DTU is a data transmission device, while RTU is a data acquisition device. It is easy to distinguish between the two with a clear division of labor.