Design and Development of a Water Flow Monitoring Device using Mitsubishi FX3U-14MT PLC

Arduino Mitsubishi FX3U-14MT PLC PLC solenoid valve water flow monitoring

Authors

  • Herri Trisna Frianto
    htfriantosjafri@gmail.com
    Post Graduate Program (Physics), FMIPA, Universitas Sumatera Utara, Jalan Bioteknologi No.1, Padang Bulan, Kec. Medan Baru, Kota Medan, Sumatera Utara 20155, Indonesia
  • Syahrul Humaidi Post Graduate Program (Physics), FMIPA, Universitas Sumatera Utara, Jalan Bioteknologi No.1, Padang Bulan, Kec. Medan Baru, Kota Medan, Sumatera Utara 20155, Indonesia https://orcid.org/0000-0003-2183-3282
  • Kerista Tarigan Post Graduate Program (Physics), FMIPA, Universitas Sumatera Utara, Jalan Bioteknologi No.1, Padang Bulan, Kec. Medan Baru, Kota Medan, Sumatera Utara 20155, Indonesia
  • Dadan Ramdan Department of Electrical Engineering, Faculty of Engineering, Universitas Medan Area, Jalan Rektorat Universitas Area, Kenangan Baru, Kec. Percut Sei Tuan, Kota Medan, Sumatera Utara 20223, , Indonesia
  • Doli Bonardo Department of Electrical Engineering, Faculty of Maritime Engineering and Technology, Universitas Maritim Raja Ali Haji, Jalan Politeknik No.KM. 24, Senggarang, Kec. Tj. Pinang Kota, Kota Tanjung Pinang, Kepulauan Riau 29115, , Indonesia
  • Fauzan Amri Instrumentation and Control Engineering Technology, Politeknik Negeri Indramayu, Jalan Raya Lohbener Lama No.08, Legok, Kec. Lohbener, Kabupaten Indramayu, Jawa Barat 45252, Indonesia https://orcid.org/0000-0002-6123-9731
January 14, 2026
February 20, 2026

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Efficient water management is essential for ensuring sustainability and reducing operational costs, especially in small to medium-scale buildings such as schools, health clinics, and office facilities. This paper presents the design and implementation of a cost-effective automated water flow monitoring system, integrating a Mitsubishi FX3U-14MT PLC with an Arduino module to facilitate real-time flow measurement and precise control of solenoid valves. The PLC is programmed using ladder logic, while the Arduino is responsible for processing sensor data, thereby enhancing measurement accuracy and contributing to overall system flexibility. In contrast to conventional industrial automation solutions, this system is specifically designed for small-scale applications, offering an effective balance of affordability, simplicity, and reliability. Experimental testing demonstrates that the system achieves high measurement accuracy, operational stability over extended use, and optimized energy efficiency, ensuring long-term reliability in water flow management. Additionally, the system’s modular design enables straightforward adaptation to various facility sizes and plumbing configurations. These findings validate the proposed system as an accessible yet effective automation solution, particularly suitable for environments where implementing large-scale industrial control systems may be impractical. Future research could focus on incorporating adaptive control algorithms and enhancing sensor integration to further improve system performance and flexibility.