Development of Programmable Relay Switch Using Microcontroller

Orginal scientific paper Nowadays, with the development of information technology, real-time and reliable devices have been developed for users and system control. Commonly used ones are programmable logic controller and operator panels. Programming of these devices, learning the communication with the controller and the hardware installations have gained great importance especially for technical staff and engineering students. In this study, automation and control technique training sets were developed for the applications used widely in industrial applications. In the training sets, programmable logic controller (PLC) and human machine interface (HMI) were used for the control. With the training sets both automation education and control techniques such as P, PI, and PID are compared. At the same time, skills and logical programming abilities of the students studying in the training were attempted to be improved with this application. In order to measure and evaluate, 18 technical staff working in the industrial sector, 14 students studying automation engineering and eight students studying pre-license training, a group of 40 people in total was formed and performances were measured at the end of the training. Design and implementation of a training set for distributed system and mechatronic applications: project based learning Orginal scientific paper Nowadays, with the development of information technology, real-time and reliable devices have been developed for users and system control. Commonly used ones are programmable logic controller and operator panels. Programming of these devices, learning the communication with the controller and the hardware installations have gained great importance especially for technical staff and engineering students. In this study, automation and control technique training sets were developed for the applications used widely in industrial applications. In the training sets, programmable logic controller (PLC) and human machine interface (HMI) were used for the control. With the training sets both automation education and control techniques such as P, PI, and PID are compared. At the same time, skills and logical programming abilities of the students studying in the training were attempted to be improved with this application. In order to measure and evaluate, 18 technical staff working in the industrial sector, 14 students studying automation engineering and eight students studying pre-license training, a group of 40 people in total was formed and performances were measured at the end of the training.

2008 Annual Conference & Exposition Proceedings

This paper describes the design, development, and implementation of an automated labeling process in an undergraduate control course laboratory. This effort provided students with valuable hands-on experience in computer assisted control system. The objective of this project is to design an automated labeling system that would label products on a conveyor belt and counts the total number of parts coming off the conveyor belt for final packaging. The system consisted of several mechanical, electrical, and pneumatic components that were integrated into a control system: a conveyor, a labeling machine, a double solenoid valve, a pneumatic actuator, a programmable logic controller (PLC), a photoelectric sensor, and relays. The photoelectric sensor, conveyor, relays, and double solenoid valve were connected to the PLC. The PLC was programmed to communicate with these components and control the entire process. All of the components were integrated to perform a task of automated labeling process. The automated labeling process began with loading parts onto the conveyor belt. The conveyor belt transported parts to the labeling station that was equipped with photoelectric sensor, actuator, and labeling machine. When the part arrived on the station, the photoelectric sensor detected the part and sent a signal to the PLC to stop the conveyor. The time delay at this station allowed the labeling machine to label the part. After the part was labeled, the pneumatic actuator extended and pushed the part into the storage area for packaging process. The actuator retracted before the conveyor motor restarted to carry another part to the labeling station. This is a repetitive process in which, after storing a part, the system will reset itself to label and store other part. The design of the system involved programming of individual components through extensive circuit wiring, testing, verification and modification. Applying this system required the links and integrations of components that challenged and stimulated the students.

2005

This paper describes a computer-based tool developed to design, simulate and verify Relay Ladder Circuits applied in industrial automation applications. By using a computer, a student can create Ladder circuits and extensively simulate, test and modify them. The visualized test of operation of a circuit can be performed either in real time or in a step-by-step procedure. In order to establish the proper operation of a sequential control system, the software developed includes a verification option by which possible errors can be identified and control logic can be investigated for various scenarios of inputs. The software package is suitable for both educational and industrial practice purposes. Key-Words: Industrial Automation, Relay Ladder Circuits, Computer Aided Design, Simulation

This paper presents an interactive, less expensive and more portable Programmable Logic Controller (PLC) training platform for the industrial control of processes. The proposed system employs Delta DVP14SS2 PLC, WPLSoft software, a programming device, switches as inputs and pilot lamps as outputs. The training system gives one the flexibility to wire and program any type of inputs and outputs of one's choice and can be easily carried in one's laptop bag giving one the freedom to learn the PLC anywhere at one's own comfort. The paper is also meant to enlighten beginners and experienced PLC users to build themselves PLC trainers which can enhance their understanding of the theoretical knowledge gained from school. Traffic light automation application is set up to train the Electrical and Electronic Engineering students to measure the applicability of the system. Pre-test and post test are conducted for participating students as a way of measuring the understanding level of the student before and after training. Cost analysis indicates that the individual can build the trainer on one's own at a cost of $ 214.

Industrial automation involves the use of machines, control systems and information technologies in optimizing productivity in the production of goods and delivery of services. The Festo compact process automation (PA) workstation is a piece of laboratory equipment designed for the training of process automation engineers. It consist of programmable logic controller (PLC) rack, output devices (including several valves, a motor, a centrifugal pump etc), input devices (including flow sensor, heat sensor, level sensor, pressure sensor), switches, network of pipes, two storage tanks a heating and a cooling system. This paper presents the automation of liquid control process implemented on the PA workstation using PLC programming, manual liquid process control using Human Machine Interface (HMI) and Supervisory Control and Data Acquisition (SCADA) system. These devices and systems are all networked together with the workstation through Ethernet and Field-Bus (Profibus) technology. Process visualization from HMI and SCADA runtime screens are presented and analyzed to validate the integrity of the PA workstation in implementing process control. The results obtained shows that the workstation can mimic most industrial processes and deployable for the enhancement of students' training on process automation.

Proceedings of the 4th Annual Conference of Engineering and Implementation on Vocational Education, ACEIVE 2022, 20 October 2022, Medan, North Sumatra, Indonesia

This research is a development research that aims to produce a ZEN Programmable Relay PLC module and training kit to improve the programming skills of Electrical Engineering Education students. The method used is the development of the four D model. The development process carried out only in 3 stages, namely define, design and develop. Then test the validity of the module and training kit. The results of the validator's assessment of the module with an average value of 80.06% and an assessment of the training kit of 86.33%. Furthermore, practicality and effectiveness tests were carried out by conducting performance tests on each Learning Activity (KB). Based on the test results, it can be concluded that the ZEN Programmable Relay PLC module and training kit is categorized as valid and can be used as a reference for PLC course practicum.

As the PLC is part of an automated system there are several modules that should be included, or be a prerequisite, in any course. Those modules are software engineering, electrical design and in some cases, mechanical design. The PLC apart from being run as a “stand alone” course is now an integral part of courses ranging from agricultural engineering to mechatronics and industrial automation. PLC courses, as for all control engineering courses, must deliver “a balance of practical skills and theoretical knowledge” and as such are laboratory based. Increasingly, in response to demands from industry PLC courses are being run in-house, in training rooms, away from the traditional venue of the automation laboratory using hardwired “kits” and PC based simulators. Concept and features of PLC and embedded system found possible to combine and develop an embedded PLC for teaching students in laboratory. Flexibility of the Embedded PLC makes it relatively easy and less costly to teach the basic principle of different kinds of PLCs. Aim to design embedded PLC is to combine the advantage of PLC and embedded system together. As PLC has become major functional block in industrial automation. Engineering education places a heavy priority on laboratory experience of PLC operation. To give practical experience of PLC operation, PLC setup in laboratories is required. A cost incurred in the setting up of comprehensive and modern PLC laboratory facilities is very high. Such laboratory requires periodic updating of teaching material and equipment. PLC designed for educational purpose has to be flexible and should meet a wide range of end-user need to give best experience of experimental results.

Proceedings of the 2014 International Conference on Advances in Education Technology, 2014

Learning activities in the industrial automation course requires a comprehensive experiment. Expensive lab equipment has implications for the quality of learning. Innovation is needed to produce media that can enhance the skills of learners in the operation and programming of industrial automation devices. This paper introduces the results of a preliminary design of training kit that has a real concept of mobile plant. This equipment was designed to practice basic and advanced logics in the control systems. The device included the real-time control system with open-source software, and also came with the manual book and job sheet. The availability of this device is expected to improve the ability of problem solving in actual control systems.

Citeseer

As the response to the feedback from academic and industry, the department of Agricultural Engineering, Faculty of Engineering and Architecture, University of Khartoum has successfully designed and developed a low cost programmable logic controller (PLC) workbench for educational purposes. The developed bench, hardware consist of PLC (Siemens, STEP7-224XP) unit, 24V/10A DC (CE, DP177.101) power supply, personal computer, USB/PPI multi-master cable, three DIN Rail, ten pieces of 24 VDC relays, thirty jacks, thirty sockets. The selected PLC unit has two communication ports, fourteen inputs and ten outputs discreet plus two inputs and one output analog. Laboratory activities of the PLC workbench includes five developed modules namely replacing relays by PLC, (AND/OR/NOT) functions, latching, timer, and counter as well as packing system prototype. A Ladder diagram under Micro/Win32 software is used to run the workbench. The developed PLC workbench has a facility to be upgraded to include human machine interface (HMI), modem module, and considered as a base for new Agricultural Automation and Robotic Laboratory. The unit total cost is about 1600 US Dollars.