Model:S278
Name: Cellular IoT Modbus Gateway
The Cellular IoT Modbus Gateway is an industrial class, high reliability, high stability, and programmable Remote Terminal Unit (RTU). It embedded 32-Bit High Performance Microprocessor MCU, integrated 1 Industrial 10/100M adaptive Ethernet module inside and inbuilt industrial Cellular module. It provides 4 digital inputs, 2 relay outputs, 1 ambient sensor input for monitoring onsite temperature and humidity, and RS485 serial port, performs as Modbus RTU Master Supports extend maximum 320 mapping registers. It can monitoring and operates the I/O ports by SMS, APP, Web Server, internet, timers and programmed inter-lock events automatically.

The Cellular IoT Modbus Gateway supports transparent data transmission and performs as Modbus Slave over GPRS/3G/4G/NB-IoT network and RS485 serial port. Moreover, the Cellular IoT Modbus RTU can be used as Modbus RTU Master to reading smart meters, I/O modules, PLC, and converts to SMS alert once triggered the threshold value, or transmit data to remote server over GPRS/3G/4G/NB-IOT network.

Main Featuresï¼?
1. Can be operated from anywhere, no distance limitation;

2. Quad band 850/900/1800/1900Mhz GSM GPRS Module inside.

3. 3G/4G/NB-IoT Modules are optional;

4. Modular design, can easily upgrade the cellular module if network upgrade;

5. Embedded ARM® Cortex�-M4 32 Bit RISC Core, 168 MHz inside, RTOS system, reliable performance with in-built watchdog;

6. Wide range power supply 9~36VDC with over voltage and phase-reversal protection;

7. 4 digital inputs, compatibles dry and wet contact, one of it can be used as pulse counter;

8. 2 relay output (5A/30VDC, 5A/250VAC), compatibles pulse outputs;

9. 1 ambient sensor input for monitoring onsite temperature and humidity;

10. Inbuilt inter-lock logic programmer and powerful timer program function;

11. Resend the data while communication failure and alert to users by SMS;

12. Inbuilt TCP/IP protocol stack, supports cloud, APP and web server applications.

13. Supports Modbus TCP protocol, can integrate to SCADA,HMI,DSC directly.

14. Integrated 1 Industrial 10/100M adaptive Ethernet module inside, supports Modbus TCP;

15. 1 RS485 port supports Modbus RTU Master, supports max. 320 mapping registers, can be used to extend I/O ports or meters;

16. Supports SMS Alert when I/O triggered or recovery, and external power lost or recovery;

17. Provides 1 channel 9~36VDC power source output for external device, saving wiring cost;

18. Up to 10 SMS Alert and dial numbers, can program to receive specified alarm message.

19. Inbuilt 4M internal memory to save historical data and events;

20. Inbuilt large capacity automatically rechargeable backup battery;