Serial to Wi-Fi Gateway

Serial to Wi-Fi Gateway

Serial to Wi-Fi Gateway


Our Serial to WiFi Gateway is a compact and reliable industrial communication device that enables seamless wireless data transfer from serial-based field equipment to cloud platforms through WiFi networks. Designed to work with commonly used serial ports such as RS232, RS422, and RS485, it helps industries modernize existing machines without changing their core hardware.

The gateway processes data locally and intelligently filters important information using configurable rules, allowing only relevant events and values to be transmitted. With support for widely adopted industrial protocols like Modbus RTU, ASCII, and custom serial formats, it can easily interface with a broad range of automation devices.

This makes it well suited for real-time monitoring, remote diagnostics, and control applications including flow measurement systems, PLC communication, industrial data logging, and smart factory implementations, ensuring stable and efficient IoT connectivity over WiFi.

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Highlights

PreciCloud - Cloud Dashboard

Our cloud platform provides a convenient way to view data from anywhere, integrating predefined widgets for applications like energy meter and flow meter reading. It supports remote device configuration, over-the-air firmware upgrades, and email/SMS notifications based on edge intelligence.

PreciCon - Configuration Tool

By using our specially designed configurator tool, "PreciCon," it is possible to choose and monitor standard industrial devices from renowned manufacturers. Gateway’s serial settings, Modbus registers are preset and ready to configure via USB. It also supports upgrading firmware and configuration of the device.

Easy Installation

Installation and Commissioning of the device is made easy with very few simple steps. Choose your end device from the list and single click to configure the device. Plug your serial device with standard DB9 connector and rigidly screw the gateway with available flange arrangements. You are ready to monitor!

Key Features

  • RS485/RS422/RS232 serial interface
  • Configurable upload interval
  • IP40 Rated enclosure
  • USB 2.0
  • Real time clock
  • Serial Protocol - Modbus RTU/ASCII
First Image
  • x2 analog inputs
  • Wi-Fi - b/g/n
  • Protocol support
  • 12V to 24V DC Supply input
  • Cloud Protocol - MQTT/HTTP/HTTPS
Last Image

General

Power Supply: 12V to 24V DC

Power consumption: 1.2A Max @12V

PC interface: USB Mini B connector. USB device communication for configuration using PreciCon tool

Indication: Status LEDs for Power, Serial communication, cloud network communication

RS485 Serial Interface

Connection: External interface via pluggable terminal connector

Data bits: 5,6,7,8 bits

Baud Rate: 110, 300, 600, 1200, 2400, 4800, 9600, 14400, 19200, 38400, 57600, 115200, 230400, 460800, 921600 bps

Stop bits: 1, 2 bits

Parity: None, Odd, Even, mark, space

Environmental

Dimension: 105mm X 68mm X 31.5mm (W/O flanges)

Weight: 138 gm

Mechanicals: ABS plastic (IP40)

Operating Temperature: -40 to +85 Degree Celsius

Data Storage

Storage Type: Non-Removable microSD card

Capacity: 8 to 32GByte

Analog Inputs

Number of channels: 2

Range: 4mA to 20mA current input

Resolution: 16-bit

Digital Inputs

Number of channels: 2

Input Switching Threshold: High – Greater than 3V or 1.5V (optional, to be mentioned during ordering), Low – Less than 3V or 1.5V (optional, to be mentioned during ordering)

Voltage input limit: 30V Max

Wi-Fi Connectivity

Frequency: 2.4GHZ

Wi-Fi Version: 802.11 b/g/n

Antenna: SMA connector for external finger type or expandable antenna

Cloud Data Transfer

Log data in industry standard format

Cyclic Logging support – Oldest file will be deleted when storage is full

100% power safe data logging – no file corruption when disconnected

Inbuilt RTC with year, month, date, weekday, hours, minutes and seconds data

RTC can be configured to match local time zone

RTC can be auto-synced via Wi-Fi network

Each device has a globally unique ID ensuring unique log file naming

Configuration or firmware Over-The-Air support with digital signature

Periodic heartbeat to cloud for connection supervision

Option for enabling or disabling upload of logged files to cloud

Applications

Wi-Fi Gateway for Wastewater Treatment Plant Monitoring

Our Wi-Fi Gateway is designed to wirelessly connect serial-based treatment plant equipment such as flow meters, level transmitters, pH sensors, and PLC controllers to a centralized cloud platform. Using its RS485 serial interface and wide protocol compatibility, the gateway collects real-time process data from various field devices and transmits only relevant information over WiFi using built-in edge processing. This enables operators to continuously monitor critical parameters like flow rate, tank levels, and process status through a PreciCloud dashboard, identify abnormal operating conditions, and receive timely alerts. With support for remote configuration and system updates, the Wi-Fi gateway simplifies plant supervision, improves operational reliability, and enables smarter management of wastewater treatment facilities without frequent on-site intervention.

Water Treatment Plant

FAQs

A Serial to WiFi Gateway converts data from RS232 or RS485 devices into WiFi-enabled data for remote monitoring and cloud connectivity.