ETS AIOT-4G LITE MODBUS TO 4G IOT GATEWAY

The ETS AIOT-4G LITE Modbus to 4G IoT Gateway is an industrial 4G Modbus RTU gateway designed to transmit Modbus data over cellular networks using MQTT or HTTP protocols. It enables seamless communication between Modbus slave devices and remote servers or cloud platforms through configurable IP, APN, and event settings.

The gateway supports structured data transmission in JSON or CSV formats, configurable Modbus polling, offline flash logging, and remote device configuration via SMS or IP commands. It is engineered for industrial environments requiring secure, configurable, and reliable Modbus to cellular integration.

Key Features

• Model: ETS AIOT-4G LITE

• Product Name: Modbus to 4G IoT Gateway

• 2G / 3G / 4G LTE Connectivity

• Modbus RTU Communication via RS485 / RS232

• MQTT Client and HTTP Client modes

• JSON Standard, JSON Plain, and CSV event formats

• SSL Enable Option (No Auth / Server Auth / Server & Client Auth)

• Configurable APN (Auto Search or Manual Entry)

• Flash Data Logging (Offline Storage)

• Keep Alive packet configuration

• Remote configuration via SMS / IP commands

• OTA firmware upgrade (FTP / HFS)

• Device Reset, Factory Default & Log Clear commands

Power & Hardware Requirements

• Power Supply: 12V to 24V DC

• Minimum 1 Amp recommended

• Type-C USB for configuration

• SIM Card required

• External antenna connection supported

Communication & Network Configuration

Supported Connection Protocols

• MQTT Client

• HTTP Client

Server Configuration

• Server IP / URL configuration

• Configurable Server Port

• SSL Enable and Authentication settings

• API Access Key support (Header or JSON Event)

APN Settings

• Auto Search (India supported)

• Manual APN configuration for special SIM cards

• Username and Password configurable

Modbus Communication Settings

Serial Configuration

• Baud Rate: 2400 / 4800 / 9600 / 19200 / 38400 / 57600 / 115200

• Data Bits: 8

• Parity: None / Even / Odd

• Stop Bits: 1 or 2

• Reply Timeout: Configurable

• Retry Count: Configurable

• Inter Poll Delay: Configurable

• Inter Character Delay: Configurable

Modbus Data Format Options

• Raw Hex Value

• Formatted ASCII Data

• Formatted Hex Data

• Combined Single Event

• Slave ID Based Event

• Group ID Based Event

Event & Logger Settings

• Event Packet Format: CSV / JSON Standard / JSON Plain

• HTTP Method: GET or POST

• Event Push Interval configurable

• Keep Alive Interval configurable

• Flash Data Logging Modes:

  • Disable

  • Enable (Offline + Live Data Sync)

  • FIFO Event Transmission Mode

• Predefined Interval settings for Modbus and IO events

Device Management & Remote Commands

The ETS AIOT-4G LITE supports comprehensive remote management through SMS and IP commands, including:

• Reboot Device

• Restore Factory Default

• Clear Logger Memory

• RTC Time Configuration

• Server & APN Configuration

• MQTT Credential Configuration

• IO Status Monitoring

• GSM Network Status Monitoring

• Modbus Configuration Clear

• Firmware Upgrade via FTP or HFS

Poll Control & Advanced Features

• Time Schedule based polling

• Query based polling (Command triggered)

• Input Active based interval scaling

• Offline Log based interval scaling

• Keep Alive message configuration

• MQTT QoS level configuration

• Network Time Synchronization options (GSM / HTTP / IP Command)

Suitable Applications

• Industrial Modbus RTU Monitoring

• Energy Meter Data Collection

• Utility & Infrastructure Monitoring

• Remote SCADA Data Transmission

• Automation System Integration

• Cellular-based Industrial Data Logging

The ETS AIOT-4G LITE Modbus to 4G IoT Gateway delivers configurable Modbus RTU communication over 4G LTE networks with structured event formatting, secure authentication, offline logging, and advanced remote configuration capabilities for industrial IoT deployments.