Toward Interoperable SCADA: Node-RED-Based Edge Integration of Heterogeneous PLCs and IoT Devices

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dc.contributor.authorSmerpitak, Krit
dc.contributor.authorKaewchaiwong, Sattachai
dc.contributor.authorUkakimaparn, Prapart
dc.contributor.authorJulsereewong, Amphawan
dc.contributor.authorPongswatd, Sawai
dc.date.accessioned2026-08-06T10:49:24Z
dc.date.available2026-08-06T10:49:24Z
dc.date.issued2025-01-01
dc.description.abstractThis article presents a novel approach to supervisory control and data acquisition (SCADA) design that emphasizes interoperability through edge integration, using Node-RED as an open-source programming platform deployed on an industrial edge computer. The proposed architecture integrates multiple-vendor programmable logic controllers (PLCs) and an Internet of Things (IoT) gateway at the edge layer to enable seamless interoperability across local control systems. A lab-scale case study demonstrates the feasibility of this integration, featuring four remote terminal units (RTUs) communicating concurrently with a SIMATIC IPC327G edge computer via standard protocols. Specifically, a SIMATIC S7-1200 (RTU-1), MELSEC iQ-F FX5U (RTU-2), and CompactLogix 1769-L30ER (RTU-3) control an object sorting station, a parcel sorting station, a water temperature control station, respectively, while a UG65 gateway (RTU-4) enables bidirectional data transfer between the edge computer and LoRaWAN devices. The inclusion of InfluxDB alongside Node-RED supports data logging and reporting functionalities. By distributing protocol translation, data processing, and shop-floor supervisory control to the edge layer, the architecture achieves real-time, vendor-neutral data orchestration while maintaining compatibility with a higher-level SCADA master terminal unit (MTU) or cloud system. Experimental results from both functional and performance testing confirm the system’s viability as a cost-effective, vendor-agnostic solution for modern industrial automation, offering a scalable model for multi-protocol industrial environments.
dc.identifier.citationInternational Journal of Intelligent Engineering and Systems, 18(7), 905-918, 2025
dc.identifier.doi10.22266/ijies2025.0831.57
dc.identifier.issn2185310X
dc.identifier.other2-s2.0-105014011723
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/16506
dc.sourceInternational Journal of Intelligent Engineering and Systems
dc.subjectdata acquisition
dc.subjectEdge integration
dc.subjectIndustrial automation
dc.subjectInternet of things
dc.subjectInteroperability
dc.subjectNode-RED
dc.subjectProgrammable logic controller
dc.subjectSupervisory control
dc.titleToward Interoperable SCADA: Node-RED-Based Edge Integration of Heterogeneous PLCs and IoT Devices
dc.typeArticle

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