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Sutan Aradji Larby Siregar
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Computer Science & IT

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Implementation of Low-Cost Programmable Logic Controller (PLC) Based on Arduino Uno as a Magnetic Relay Control System Sutan Aradji Larby Siregar; Ahmad Dani; Solly Aryza
INFOKUM Vol. 13 No. 04 (2025): Infokum
Publisher : Sean Institute

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Abstract

This research aims to develop and implement a magnetic relay control system based on a low-cost Programmable Logic Controller (PLC) using Arduino Uno and LDmicro programming. The main focus of this research is to create a reliable, efficient, and affordable control system that can be easily integrated into industrial and household applications. The hardware design was carried out systematically, involving the selection of main components, electronic circuit design, and physical arrangement of components, considering efficiency and safety. Software testing was conducted using LDmicro to design and simulate ladder diagrams, and XLoader to upload the program to the Arduino Uno microcontroller. The test results show that the control system based on Arduino Uno and LDmicro functions well in controlling the magnetic relay according to the designed logic. This ladder diagram-based approach proves to be simple, efficient, and economical for developing control systems. The implementation of an Arduino Uno-based PLC offers an affordable alternative to conventional automation solutions, making it suitable for applications in education, prototype development, and small-scale industries. This research is expected to contribute significantly to the development of low-cost automation technology and open up broader opportunities for implementation in various sectors.
Co-Authors Ahmad Dani