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All Journal FaST : Jurnal Sains dan Teknologi
Rhizma, Mario Gracio Anduinta
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Computer Science & IT Environmental Science

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Modifikasi Sistem Cutting Body Ply pada Mesin Building Menggunakan PLC Allen-Bradley: [Modification of Bodyply Cutting System on Building Machines Using Allen-Bradley PLC] Rhizma, Mario Gracio Anduinta; Siburian, Denson; Uranus, Henri
FaST - Jurnal Sains dan Teknologi (Journal of Science and Technology) Vol. 8 No. 2 (2025): MAY
Publisher : Universitas Pelita Harapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19166/jstfast.v9i1.9661

Abstract

The process of body ply cutting system was previously performed manually, resulting in high cycle time and safety risks. The main issues include the lack of standardization in cutting pressure, cutting speed, and the risks associated with using a blade heated to 160-180°C. The proposed automated solution involves implementing proximity sensors, a Variable Frequency Drive (VFD), pneumatic solenoids, a three-phase motor, and a heating system with temperature control using a thermocouple. The system is controlled using an Allen-Bradley PLC and programmed with Studio 5000 Logix Designer. The results indicate that the modifications successfully reduce the cycle time per unit by 9.11% and increased production in the first shift by 7.6%. Bahasa Indonesia Abstract: Proses body ply cutting sebelumnya dilakukan secara manual, menyebabkan tingginya cycle time dan risiko keselamatan kerja. Beberapa masalah utama yang terjadi adalah tekanan pemotongan yang tidak standar, kecepatan pemotongan, dan risiko penggunaan pisau yang dipanaskan hingga 160-180°C. Solusi yang diusulkan adalah otomatisasi proses mencakup penerapan sensor proximity, Variable Frequency Drive (VFD), solenoid pneumatik, motor 3 fasa, serta pemanas dengan pengendalian suhu menggunakan termokopel. Sistem ini dikontrol menggunakan PLC Allen-Bradley dan diprogram melalui Studio 5000 Logix Designer. Hasil penelitian menunjukkan bahwa modifikasi ini berhasil mengurangi cycle time/unit sebesar  9,11%  dan  meningkatkan  produksi  pada  shift  1  sebesar  7,6%.  
Design of a Two-Point Temperature Monitoring System on a Heating Medium Based on Arduino Mega 2560 and IoT Anggara, Nataly Wisnu; Rhizma, Mario Gracio Anduinta
FaST : Jurnal Sains dan Teknologi Vol. 10 No. 1 (2026): MAY
Publisher : Universitas Pelita Harapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19166/fastjst.v10i1.10897

Abstract

This research aims to design a two-point temperature monitoring system using 2 DS18B20 sensors on a heating medium using DS18B20 sensors controlled by an Arduino Mega 2560 and integrated with Internet of Things (IoT) technology. The measured data are processed by the microcontroller and transmitted via the ESP8266 module to the Firebase platform, then displayed on a smartphone application and recorded as historical data. The experimental results show that the DS18B20 sensors are able to read temperature changes linearly within the tested temperature range of approximately 27°C to 67°C and can follow the temperature increase trend of the heating medium. To improve measurement accuracy, calibration was performed using a linear regression method with a surface thermocouple as the reference instrument. After calibration, the measurement error was significantly reduced to 2.90% at the upper measurement point and 2.66% at the lower measurement point, indicating that the system is more representative for monitoring temperature changes at two measurement locations. The proposed demonstrates decent performance as an IoT-based temperature monitoring prototype, making it suitable for small-scale heating applications and educational purposes.
Co-Authors Anggara, Nataly Wisnu Siburian, Denson Uranus, Henri