1. On-Site Challenge: The Problem of Data Silos in Aging Facilities

In the field of industrial digitalization implementation, a large number of legacy industrial devices such as PLCs, meters, and sensors continue to operate on the Modbus protocol—data exists on the device side but is separated from cloud platforms, MQTT buses, and supervisory control systems by a ''protocol barrier,'' making it difficult for data to flow smoothly.

Traditional protocol conversion solutions often require specialized personnel to write custom collection programs or commission integrators for project-based development. Not only do these approaches have long deployment cycles and high investment costs, but adjustments to protocol mapping rules also require repeating the entire process of development, debugging, and deployment. This lack of flexibility has become a bottleneck in the digital transformation of many legacy devices.

Leveraging the Forlinx Embedded FCU1501 embedded control unit, protocol conversion can now be accomplished through a low-code approach that involves only ''dragging nodes and arranging connections'' visually.

2. The FCU1501 Features a Built-In Node-RED Protocol Conversion Engine

Node-RED is a widely recognized low-code orchestration tool in the field of Industrial IoT, extensively used in scenarios such as protocol conversion, edge data collection, and cloud integration. It is one of the core solutions adopted by many leading industrial gateway manufacturers to address the challenge of ''connecting legacy devices to networks.''

The Forlinx Embedded FCU1501 embedded control unit deeply integrates the capabilities of Node-RED into its system, eliminating the need for users to set up additional environments. It enables lightweight industrial protocol conversion right out of the box, with core capabilities including:

• Native Support for Mainstream Protocols: Industrial protocols such as Modbus TCP/RTU are ready to use, allowing direct connection to PLCs, smart meters, sensors, and other devices for rapid foundational data collection.
• Visual Drag-and-Drop Orchestration: No code writing is required for data collection; business logic can be defined simply by dragging nodes and connecting lines. On-site engineering personnel, even without specialized programming knowledge, can quickly adapt and make flexible adjustments.
• Free Conversion Between Multiple Protocols: Supports one-click conversion of collected Modbus data into standard protocols like MQTT/HTTP, enabling seamless integration with cloud platforms, SCADA systems, and enterprise data platforms.
• Local Real-Time Visualization: Features a built-in Dashboard function, allowing real-time data to be viewed via a local webpage without waiting for cloud uploads. This makes on-site debugging more efficient.
• Offline One-Click Deployment: The entire solution supports offline deployment, eliminating the need for a public internet connection or the presence of specialized IT personnel on-site. Environment setup and business configuration can be completed in just tens of seconds.
• Practical Test Validation: Stable and Seamless, Fully Low-Code Implementation
• We conducted a practical test using simulated meters (outputting real-time temperature, humidity, and pressure data) connected to the FCU1501 embedded control unit. The entire process required no manual coding: device data was collected via the Modbus protocol into the gateway, protocol rules were converted, data was published in real-time to an MQTT service, and simultaneously displayed on a local visualization panel.

The pointers on the temperature, humidity, and pressure dashboards swung in real-time, with data refreshed every 2 seconds. The entire process was free of lag and packet loss, demonstrating stable and smooth performance.

Additionally, the device supports real-time logging and reporting of operational data, enabling quick identification of equipment status and anomalies, significantly reducing the difficulty of on-site maintenance.

Adapting to Multiple Scenarios to Support Low-Cost Implementation of Industrial Digitalization

The low-code protocol conversion capability of the FCU1501 embedded control unit can be widely applied across various industrial and IoT scenarios:

• Digital Transformation of Legacy Production Lines: Achieves low-cost, rapid cloud integration of PLC and meter data, shortening the transformation cycle.

• Building Automation System Integration: Unifies data access for multi-system equipment such as HVAC, lighting, and access control.

• Distributed Site Data Collection: Completes edge-side data collection and preprocessing, reducing cloud bandwidth pressure.

• Remote Equipment Maintenance: Supports remote monitoring of equipment status and data preprocessing for predictive maintenance.

As an embedded control unit designed for industrial scenarios, the Forlinx Embedded FCU1501 breaks down the technical barriers of protocol conversion through a low-code approach, making industrial device connectivity and data flow simpler and more efficient. It provides a cost-effective edge-side solution for the implementation of industrial digitalization.

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