PELATIHAN SMART RELAY / PROGRAMABLE LOGIC CONTROLLER (PLC) GURU LISTRIK DI SMK SWASTA HKBP KOTA P. SIANTAR, PROV. SUMUT

Sekolah Menengah Kejuruan (SMK) adalah pendidikan formal pada jenjang pendidikan menengah yang menyelenggarakan pendidikan kejuruan. Idealnya lulusan SMK akan langsung mendapatkan pekerjaan yang layak sesuai dengan kompetensi dan keterampilannya, paling tidak siap kerja. Pendidikan kejuruan merupakan jenis pendidikan yang berorientasi pada keterampilan khusus sesuai dengan jurusannya. Seyogianya lulusan pendidikan kejuruan akan mudah memasuki pasar. Fakta yang terjadi di lapangan tidak demikian. Dikutip dari News.okezone.com), lulusan SMK selama ini kurang memuaskan akibat kurangnya kompetensi dan keterampilan lulusan sesuai dengan kebutuhan dunia usaha dunia industri (DUDI). Kebutuhan Sumber Daya Manusia (SDM) yang berkualitas di dunia industri menuntut SMK untuk membekali lulusannya sesuai dengan kompetensi-kompetensi yang dibutuhkan dunia usaha maupun dunia industri. Oleh karena itu SMK harus mempersiapkan peserta didiknya agar siap masuk ke dunia kerja dengan membekali berbagai macam kompetensi yang menunjang kebutuhan dunia kerja. Keberhasilan peserta didik dalam menguasai suatu kompetensi tidak lepas dari proses pendidikan. Salah satu bidang kompetensi yang berkembang begitu cepat saat ini adalah Teknologi Otomasi Industri, sehingga kompetensi semakin dibutuhkan dan menjadi tututan dewasa ini di lingkungan industri. Bidang kontrol otomasi industri banyak memberi kemudahan-kemudahan bagi masyarakat pengguna lebih khusus bagi seorang operator untuk mengoperasikan suatu sistim kontol. Dan Smart Relay/PLC yang dapat digunakan untuk mempermuda sistem pengontrolan yang dimaksud. Namun dalam pemanfaatannya smart relay/PLC harus diprogram secara khusus untuk menjalankannya. Dalam kurikulum SMK khususnya jurusan listrik, smart relay/PLC adalah pelajaran yang wajib diajarkan kepada siswa untuk meningkatkan kompetensi siswa, namun dengan terbatasnya peralatan modul dan guru yang mengajar bahkan ada sekolah yang sama sekali tidak mengajarkan khusus Smart Relay/PLC ini. Dalam lomba-lomba Ketrampilan Siswa (LKS) tingkat Nasional untuk SMK dengan jenis lomba bidang Electrical Instalasion beberapa tahun terakhir ini menjadi standar Nasional, Smart Relay/PLC sebagai pengontrol untuk suatu rangkaian instalasi yang dilengkapi dengan sensor-sensor, saklar-saklar, motor listrik dan peralatan lainnya. Smart Relay/PLC sudah menjadi standar lomba LKS tingkat Nasional. Untuk itu dengan melihat kondisi serta kebutuhan sekolah untuk menunjang pelajaran tentang smart relay/PLC maka sebagai institusi pendidikan vokasi terpanggil untuk membantu melengkapi peralatan dan pelatihan dasar Smart Relay/Programmable Logic Controller (PLC) dengan metode pembelajaran Trainer Human Machine Interface (Trainer HMI) untuk meningkatkan kompetensi guru/pengajar dibidang kontrol industri.

Improving the Understanding of a Remote Environment by Immersive Man-Machine Interaction

In a changing world, the way we interact with machines must change as well. Teleoperation becomes more important. This poses its own set of challenges. To solve these a new Human-Machine interface must be developed. By developing this HMI around the concept of immersion, these challenges can be solved. This new kind of HMI can be applied to different fields. Examples using forestry or remote robot operations are demonstrated.

Pengembangan Embedded Device Berbasis PLC untuk Simulator Rejection System dengan Penambahan Human Machine Interface

Changes to the simulator rejection system from the previous research were carried out by replacing all sensors, drive motors, PLC systems, and adding HMI systems. The objectives in this research, namely (i) changing and developing a rejection system simulator, creating a ladder-based program structure and configuring HMI systems and (ii) measuring the performance of the simulators. Rejection system simulator is fabricated and reassembled, ladder-based syntax into PLCs and HMI is also configured, and observing the performance is done through the HMI layer. The results of programming is carried out through (i) providing software for PLCs, (ii) programming the PLC system, (iii) compiling and uploading programs from PC to PLC, (iv) configuring PLC and HMI via ethernet, and (v) compiling and uploading the program structure from PC to HMI. The performance for observing the condition of the bottle cap through the HMI is observed when (i) synchronization between the simulator system and the HMI-assisted PLC control, (ii) the reading of the sensors installed on the simulator, and (iii) the rotation process of the rejector arm. Overall, the rejection system simulator with a PLC-based assisted by HMI can be used as a process simulation against the implementation of the rejection system

Implementasi Realitas Berimbuh pada Antarmuka Manusia-Mesin di Industri Proses

Process industries such as oil refineries, petrochemical plants, and power plants require a human-machine interface system to monitor continuously. The operator usually carries out monitoring via a human-machine interface. However, it is difficult to know the condition of process equipment in real-time. The implementation of augmented reality allows engineers to visualize process equipment in real-time when conducting field inspections. The implementation of augmented reality at the human-machine interface to the fluid catalytic cracking process in an oil refinery is discussed in this paper. The design was started by developing a three-dimensional process equipment model using Autodesk Inventor. The result of the three-dimensional model then using Unity 3D software connected to the Vuforia Engine was implemented on a gadget into an augmented reality application. Data communication performance analysis was carried out using inferential statistics methods to test variations in service quality at levels 0, 1, and 2. The result of the Tukey test showed that the communication network latency value in level 2 was significantly higher than levels 0 and 1, which was 0.704±0.108 seconds. These results indicate that augmented reality can be implemented on human-machine interfaces by ensuring the quality of data communication services using Message Queue Telemetry Transport (MQTT) protocol at levels 0 or 1.

Research on visual optimization design of machine–machine interface for mechanical industrial equipment based on nonlinear partial equations

With the continuous development and progress of machinery and industry equipment, human-machine interface has become an important operation in industry equipment and has been widely used in aviation, monitoring, traffic, special engineering vehicles, and a series of complex fields. Through the human-machine interface information system, information and data are provided for operators s. As the human-machine interface information data of the mechanical equipment system are numerous, complex, and changeable, operators often make operation mistakes, misread and misjudge, and do not give timely feedback, resulting in task failure or, in serious cases, major mechanical faults and accidents. Therefore, the human-machine interface data information is screened, and the information useful for the operator is directly obtained according to the target set by the operator, so as to effectively solve the complex and changeable data information in the information system. Human-machine interface uses electronic communication technology, computer network technology, and database technology to expand and update machinery and industrial equipment. Among them, nonlinear partial differential equations comprise an important branch of equation in mathematics. In this paper, according to the nonlinear partial differential equations, we research and analyze the information system of the human-machine interface design field and solve the system of the cognitive load, which is too large, such as cognitive mismatch problem in the working mode of operating personnel, by satisfying the needs of different users. The human-machine interface of mechanical industrial equipment uses visual optimization design and innovation.

SIMULASI SISTEM PEMANTAUAN DAN PENGATURAN SUHU SECARA REAL TIME MENGGUNAKAN HUMAN MACHINE INTERFACE

Every stage of the process that occurs in the industry requires control so that the system can run in accordance with the specified procedures. This can be found in control of food and beverage where the heating process must be implanted within a prescribed time. The heating process can take place in stages and each stage requires a temperature limit within a certain time duration. If the temperature stability is disturbed the resulting product will be damaged. This problem can be overcome if automation is carried out on the system using a processing unit, namely a programmable logic controller (PLC). In this paper, the temperature regulation system is made in the form of a simulation using Festo Compact Workstation module to regulate the temperature of the water heating process to keep it constant for a certain time duration. The system is equipped with a temperature sensor as PLC input which is then processed with a proportional, integral and derivative (PID) algorithm to activate the heater or cooler. This automation system is connected to the human machine interface (HMI) so that processes that occur in the system can be monitored and controlled remotely from the control room. Based on the test results, it can be seen that the temperature sensor has an error of 0.808%, the best PID parameters in this test are: Kp = 2.4, Td Ti = 55 and = 14. The test also shows that the system temperature can be maintained and the process can be monitored and accessed through HMI. Setiap tahapan proses yang terjadi di industri memerlukan pengendalian agar sistem dapat berjalan sesuai dengan prosedur yang berlaku. Demikian halnya dengan proses pengendalian suhu yang banyak dijumpai pada industri makanan/minuman. Proses pemanasan bisa berlangsung secara bertahap dan tiap tahapnya memerlukan batasan suhu dalam durasi waktu tertentu. Bila kestabilan suhu terganggu maka produk yang dihasilkan menjadi rusak. Masalah ini dapat diatasi bila dilakukan otomasi pada sistem menggunakan unit pengendali yaitu programmable logic controller (PLC). Pada makalah ini sistem pengaturan suhu dibuat dalam bentuk simulasi menggunakan modul Festo Compact Workstation untuk mengatur suhu pada proses pemanasan air agar terjaga konstan dalam durasi waktu tertentu. Sistem dilengkapi dengan sensor suhu dan sensor level air sebagai masukan PLC yang selanjutnya diolah dengan algoritma proporsional, integral dan derivatif (PID) untuk mengaktifkan heater dan cooler. Sistem otomasi ini terhubung ke human machine interface (HMI) agar proses yang terjadi pada sistem dapat dipantau dari ruang kendali. Berdasarkan hasil pengujian dapat diketahui bahwa sensor suhu memiliki kesalahan 0,808 %, parameter PID terbaik dalam pengujian ini yaitu: Kp = 2,4, Ti = 55 dan Td = 14. Pengujian juga menunjukkan suhu sistem dapat dipertahankan dan proses dapat dipantau serta diakses melalui HMI.