Product Introduction

BG-103

RH-BG-103 is a simple IoT gateway for data collection from industrial field devices, with a STM32F407VE of high-performance processors and a RT-Thread real-time operating system. Supports Ethernet, WiFi, 4G Cat. 1 Three networking modes, with 4 digital inputs and 2 relay outputs, can realize equipment status monitoring, output counting, Modbus protocol conversion and MQTT cloud data reporting.

it is suitable for the operation data collection of equipment such as stamping machines and CNC machining centers, and can also be used in scenes such as automatic production statistics and remote control of switching values. Cooperate with RH-BOX cloud platform to help manufacturing enterprises quickly build workshop-level equipment monitoring system.

Product Positioning

A Lightweight IoT Gateway for Industrial On-site Equipment Data Acquisition

Deeply integrating industrial IO acquisition, Modbus protocol conversion, and MQTT cloud reporting technologies, it rapidly establishes workshop-level equipment monitoring systems with a lightweight architecture, completely bridging the data silos of underlying equipment.

Industry Positioning

Targeted at discrete manufacturing industries such as machining, metal forming, and electronics manufacturing, the gateway is precisely tailored for complex scenarios including operational data acquisition for stamping machines and CNC machining centers, automatic production line yield statistics, and 4G networking for distributed equipment (e.g., outdoor pump stations, rooftop fans). It bridges the digital gap between traditional shop floor equipment status monitoring and upper-level cloud platform management.

Functional Positioning

The gateway integrates 4 NPN digital inputs (supporting status monitoring, button counting, and 10KHz pulse counting) and 2 relay dry contact outputs. It features a built-in high-performance STM32F407VE processor and the RT-Thread real-time operating system. It supports tri-mode networking and automatic switching via Ethernet, WiFi, and 4G Cat.1, and possesses Modbus TCP/RTU protocol conversion capabilities along with standard MQTT JSON format active reporting. It also supports Ethernet IAP dual-partition remote firmware upgrades.

Value Positioning

More than just a data collector, it is a lightweight data engine for manufacturers to rapidly build workshop-level equipment monitoring systems at a low cost. It can complete workstation reporting and indication control without any PLC or upper computer involvement. It supports offline data caching and retransmission, as well as automatic rollback on dual-partition upgrade failure to ensure data and device security. When paired with the RH-BOX cloud platform, it helps managers monitor real-time workshop equipment uptime, production rankings, and alarm records, achieving production transparency.

Core Product Value

Industrial IO Acquisition · Modbus Protocol Conversion · MQTT Cloud Platform Integration

Focusing on flexible multi-mode networking, precise IO acquisition, seamless protocol conversion, and highly reliable data cloud transmission to precisely solve the pain points of workshop equipment networking and data acquisition.

(1) Tri-Mode Networking & Automatic Switching: Adapt to Any On-site Network Environment

Supports three networking modes: wired Ethernet (10/100M auto-adaptive), WiFi (2.4GHz), and 4G Cat.1 (full-network compatible). The communication modules use a plug-and-play interchangeable design with identical pinouts, allowing for flexible configuration as needed. Features intelligent network priority management (Wired > Wireless), automatically and seamlessly switching to wireless upon wired connection loss to ensure uninterrupted data transmission. This provides the optimal networking solution for workshops with WiFi coverage, standalone devices without network infrastructure, or secure closed-network environments.

(2) Multi-Mode IO Acquisition & Linkage Control: Meet Complex Production Line Reporting Needs

Provides 4 channels of NPN optocoupler-isolated digital inputs, supporting three independent configuration modes: status monitoring, button counting, and high-speed pulse counting (up to 10KHz). A configurable 10-500ms filter time effectively eliminates contact bounce interference. Equipped with 2 channels of relay dry contact outputs (DC 30V/2A), supporting remote control and local logic linkage (e.g., controlling tricolor lights). The counter values are stored in non-volatile circular memory (with a maximum of 128 historical slots), enabling the completion of workstation manual reporting, automatic yield statistics, and abnormal status monitoring without the need for a PLC.

(3) Modbus Protocol Conversion & MQTT Cloud Uploading: Break Down System Barriers for Data Interoperability

Built-in standard Modbus TCP Slave and RTU interfaces map all device parameters and IO states to registers, allowing local PLCs/HMIs/SCADA systems to read and write directly, easily realizing cross-protocol gateway functionality. Simultaneously supports the standard MQTT v3.1.1 protocol and JSON data format, with device attributes actively reported at configurable intervals (1-65535 seconds). It also supports cloud platform-downloaded configuration commands that take effect in real-time. With offline data caching and automatic reconnection mechanisms, its built-in circular buffer ensures zero data loss, seamlessly integrating with the RH-BOX cloud platform for cross-regional remote monitoring.

(4) Dual-Partition Remote Upgrade & Industrial-Grade Design: Ensure Long-Term Stable Operation

Supports Ethernet IAP online upgrades with a dual-partition design (Bootloader 64KB + APP 448KB), automatically rolling back in case of upgrade failure, effectively eliminating the risk of devices becoming "bricked" and enabling firmware iteration without opening the box. Powered by a high-performance STM32F407VE processor and the RT-Thread real-time operating system, it supports a wide temperature range (-40 to 85°C) and humidity (5 to 95% RH non-condensing), with an IP30 protection rating. It offers wall-mounting and 35mm DIN rail installation options in a compact size (108×83×47mm), making it perfectly suited for 7*24 hour stable operation in various harsh industrial environments.

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