Abstract: This paper presents the design and implementation of a centralized energy monitoring system for industrial applications. The system enables real-time monitoring of electrical parameters such as voltage, current, power, and energy consumption from multiple energy meters. These meters are interconnected using RS-485 communication, which provides reliable data transmission over long distances. The Modbus protocol is used to ensure structured and accurate data exchange between devices. A data converter is employed to convert Modbus RTU communication into Modbus TCP format, allowing integration with Ethernet networks. The converted data is transmitted to a central server, which acts as the main unit for data collection, processing, and storage. The system continuously updates electrical parameters, enabling real-time observation and analysis of system performance. Time-stamped data storage allows detailed evaluation of energy usage over a period of time. The proposed system reduces the need for manual data collection and minimizes human errors, thereby improving monitoring efficiency. It also provides better visibility of system behaviour and supports informed decision-making. The communication network ensures stable and uninterrupted data transfer under continuous operation. The system is flexible and can be expanded by adding more devices as required. Overall, the proposed system offers a cost-effective and scalable solution for centralized energy monitoring and enhances efficient utilization of electrical energy in industrial environments

Keywords: Energy Monitoring, RS-485, Modbus TCP, Ethernet Communication, Industrial Automation, Real-Time Monitoring

Downloads: | DOI: 10.17148/IJIREEICE.2026.14525