RS2MQTT

Project Description

3WIRE

RS2MQTT

Serial Device Server & Modbus Gateway

INTRODUCTION

3Wire RS2MQTT is an industrial grade 4G Data Transfer Unit (DTU) for connecting your Serial and Ethernet* devices, such as PLCs, meters, and sensors to an IoT platform.

RS2MQTT is able to poll the required data from your Serial devices and send it as MQTT or HTTP Post over GPRS or LTE network. You can configure the connected devices thru the serial port, configuring and defining the required data and interval.

Upto 800 data records are stored in it’s internal cache memory to prevent data loss if the 2G / 4G connection is lost. The unit also comes with specially designed watchdog circuit to ensure stable continuous operation of 4G connectivity.

FEATURES

Supports 3 Modes; TDD-LTE, FDD-LTE & GSM
Supports baud rate of 300bps ~ 921600bps, 5 ~ 8 data bits and parity can be “None”, “Odd”, “Even”, “Mark” & “Space”
Serial port interface for RS232 / 485; terminal block for RS485 and DB9 for RS232
Supports Serial Port Transparent Transmission, Modbus RTU to Modbus TCP & MQTT Protocol
Supports serial port AT Command configuration
Power+4G / Link / Active LED indicator
MQTT can be configured over the serial port
DTL-645 & Modbus RTU parameters can be polled and converted to JSON fomat
Upto 32 slaves connected on RS485 bus; with upto 200 parameters polled
Heartbeat & Keep Alive function ensures a reliable connection
Automatic discovery and configuration using provided 3Wire Device Management software
Wide voltage 9VDC ~48VDC; DC-Jack
Plug-in screw terminal wiring; accepts AWG12 ~AWG30 wires

SPECIFICATIONS

GENERAL SPECS
Interface RS485/422: Terminal; RS232: DB9
Power Supply 5.5mm Plug & 2 Way Plugable Terminal Block Adaptor
Dimensions 94mm (L) x 65mm (W) x 25mm (H)
CELLULAR
Supported Modes 4G CAT 1 Supports 2G & 4G
B1 / B3 / B5 / B8 @ FDD LTE
B34 / B38 / B39 / B40 / B41 @ TDD LTE
B3 / B8 @ GSM
Transmission Rate (Maximum) LTE : 10Mbps (downlink ) & 5Mbps (uplink)
GPRS : 85.6Kbps (downlink) 85.6Kbps (uplink)
SIM Card 3V & 1.8V; Standard SIM
Antenna 50Ω / SMA Type
SERIAL PARAMETERS
Baud Rate 300 ~ 921600bps
Data Bits 5 bits ~ 8 bits
Parity None, Odd, Even, Mark, Space
COMMUNICATION
Protocol MQTT & HTTP Post
Configuration 3Wire Device Management Software
POWER REQUIREMENT
Power Requirement 9~24V DC,80mA@12V; 40mA@24V
ENVIROMENT
Operation Temperature -40°C ~ 85°C
Storage Temperature -45°C ~ 125°C
Humidity 5 ~ 95% RH

ARCHITECTURE DIAGRAM

DATASHEET

RS2MQTT Datasheet