Cellular IoT Modbus RTU (8DI,6AI,4Relay,1TH,USB,RS485,320 Extend I/O tags)

Cellular IoT M2M RTU

The Cellular IoT Modbus RTU is an industrial class, high reliability, high stability, and programmable Remote Terminal Unit (RTU).  

The RTU features 8 digital inputs, 6 analog inputs, 4 relay outputs, 1 ambient sensor input for monitoring onsite temperature and humidity, and 1 RS485 serial port. And as Modbus master, the RTU can connect to expansion I/O module or read data from water sensors, power sensors, PLC and other instruments. 

It is a cost effective IoT solution for industrial automation, security monitoring system, automatically measurement and control system, BTS monitoring, remote data acquisition, telemetry systems, automatically control systems.   



Key Features

• 4G network communication, can be operated from anywhere, no distance limitation;
• Wide range power supply 9~36VDC with over voltage and phase-reversal protection;
• Embedded ARM Cortex-M4 32 Bit RISC CoreRTOS system, reliable performance with in-built watchdog;
• 8 digital inputs, supports both dry contact and wet contact. Logic level: 10~30V or short circuit treated as close, 0~3V or open circuits treated as open. DIN0 as a high-speed pulse counter, sampling frequency: 1MHz; DIN1~3 as low-speed pulse counter, anti-shake time can be set 1~2000ms, default 1ms;DIN1 with arm and disarm function;
• 4 relay output (5A@30VDC, 5A@250VAC), can auto control by timer, alarm-link and remote control by SMS, cloud. The first DO can set time to control by authorize number;
• 1 temperature & humidity sensor input for monitoring onsite environment, the sensor model is AM2301, temperatures range from -40°C to 80°C, with a 0.5°C accuracy, humidity range from 0 to 100RH%, with a 3% accuracy;
• 6 analog inputs, 12bits resolution, supports 0-5V, 0-20mA, 4-20mA output transducers;
• Inbuilt 32G SD card to save up to tens of thousands historical data and events;
• 1 RS485 port, support Modbus slave protocol, can link up to SCADA, HMI, DSC, PLC. Support Modbus Master protocol, can connect to 16 Modbus Salve, e.g.: Data Acquisition Module, meters, generator, PLC, VFD, etc., and 320 tags can set alarm value and content, also support data transparent transmission;
• Powerful SMS function: Threshold high SMS alert, SMS set, SMS inquiry, SMS command for Modbus PLC, and SMS monitoring communication with Slaves;
• Inbuilt 1DC output for external transducers to save wiring cost;
• Automatically resend the data while communication interrupt or failure, and failure will alert by SMS;
• Supports remote restart, remote configureand operate by SMS commands;
• 10 SMS Alert and auto dial numbers for receiving alarm message, can program to receive specified alarm message. The authorized numbers also can dial to open the door or turn on/off machine with a free charge call at the specified time;
• Inbuilt inter-lock logic programmer and powerful timer program function;
• Support SMS, dial, 4G network for alert, USB port for configuration and upgrade firmware;
• Support TCP/UDP, MQTT, Modbus TCP, Modbus RTU over TCP, BLIIoT IoT RTU protocol and data transparent transmission;
• Metal case with IP30 protection grade, safely isolated from inner system, especially suitable for industrial control application.
• Small size: 108mmx82mmx40mm, support wall-mounting and DIN Rail mounting.

Typical Application Scenarios

Industrial Monitoring & Automation 

• Automatic monitoring systems  
• Pumping station monitoring  
• Tank level monitoring (oil/water)  
• Oil & gas pipeline monitoring  
• Corrosion protection  
• Valve control  
• Transformer station monitoring  
• Unmanned equipment rooms  
• Control room applications  
• Automation systems  
• M2M (Machine-to-Machine) communication

Security & Alarm Systems

• BTS (Base Station) monitoring  
• Security alarm systems  
• Surveillance & alarm monitoring  
• Vending machine security  
• Access control systems  

Environmental & Disaster Monitoring

• Weather stations  
• River monitoring & flood control  
• Water leakage detection  

Energy Management & Efficiency  

• Energy-saving systems  
• Smart streetlight control  

Building & Real Estate  

• Building & property monitoring  

Other Applications

• Wellhead monitoring  
• Boat/vehicle tracking  

Technical Specifications

Model Selection

Packaging

• 1 x RTU
• 1 x Wiring terminal
• 1 x Mini USB
• 1 x SMA cellular antenna
• 1 x Power adaptor
• DIN-Rail mounting clip kit
• Product qualification certificate, Warranty card