Product Details

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.

Item	Reference Scope
DC Power supply	Standard adapter: DC 12V/2A Range 9-36VDC
Power consumption	Standby:12V/130mA; Working Max.: 12V/500mA
GSM Frequency	850/900/1800/1900Mhz
3G/4G	Optional: WCDMA/TDD-LTE/FDD-LTE
TCP/IP stack	TCP,UDP
SIM interface	Dual SIM Card,supporting 3V and 1.8V SIM Card
External antenna	SMA Antenna interface, 50 Ohm, Gain: 3dB
Serial Interfaces	1 USB Port
Protocols	SMS, GPRS UDP,TCP,MQTT, Modbus RTU, Modbus TCP and more equipment protocols can be added according to requirements.
Ethernet	1 RJ45 Ethernet port for connect internet.
RS485	2 RS485, Support Transparent transmission and Modbus RTU Slave, Modbus RTU Master.
Digital Inputs	8 Digital input, NC/NO type,wet /dry contact .DIN0 can be used as high speed pulse counter max 1MHz,DIN1-3 can be used as low speed pulse counter max 1KHz.DIN1 can arm and disarm.
Analog Inputs	6 Analog Inputs. 24 bit resolution, 0-5V or 0-20mA or 4-20mA;
Temp.&Hum Inputs	Temperature range: -40°C to +80°C, Humidity Range: 0~100%RH;
Relay Outputs	4, Rated: 5A/30VDC,5A/250VAC
Power Outputs	1 Port, for external device;
Extend I/O tags	Max.320
Memory Capacity	Internal 8G SD card inside, can save the data for 100000events.
Backup Battery	3.7V 900mAH
Temperature range	-20°C ~ +70 °C
Humidity range	Relative humidity 95% (condensation free)
Exterior dimension	70mm87mm52mm
Net Weight	350g

Model

GSM/3G/4G

Ethernet

DIN

AIN/

PT100

Relay

T&H

SD Card

Mapping Registers

Boolean

16-Bit

32-Bit

64-Bit

RS485 Port

S475

√

128

S475E

√

128

Notice

1. Default version is GSM/GPRS module inside.

2. Pls check the slave devices’ register quantity and data type,then choose the right model of S475/S475E according to the mapping registers in the model list.

3.For 3G WCDMA, 4G LTE version, please tell our sales where would you like to use them.

4.The S475E series has no communication module, so it can't call and SMS to alarm.