All three simulated systems successfully provided data to Node-RED simultaneously.
Data was synchronized, combined, and visualized in real-time.
The unified structure allowed easy scalability—additional OPC UA or Modbus sources could be added without major flow redesign.
Demonstrated the power of Node-RED as a protocol-agnostic integration layer for Industry 4.0 applications..
Future Enhancements
Store data into a time-series database (InfluxDB or MongoDB).
Use Grafana for advanced visualization.
Add MQTT or HTTP API for cloud connectivity.
Implement data analytics or machine learning for predictive maintenance.