Courses

Programmable Controllers and Supervisory Systems

General

Course Contents

• Introduction to PLCs – Software and Hardware configuration
• PLC programming
• Development of structured programs
• Timers, Comparators and Counters
• Subroutines and PLC
• Networking
• Advanced Logic Controller (PLC) Issues
• Structured programming – internship – project creation, P.I.D. controller, Control Functions, Datablock data storage, Troubleshooting, Organization block.
• COMMUNICATION PROTOCOLS PLC – INDUSTRIAL NETWORKS
• Industrial communication networks (ASI, Profibus, Industrial Ethernet, Profinet), Use of profibus communication and data programming through it., PLC networking
• OPERATION AND SUPERVISORY SYSTEMS (SCADA)
• Real-time systems, definition, communication (access, master-slave relationship), determination of scan time and sampling
• Control system components, sensors, actuators, local and remote controllers, algorithms, control, monitoring, recording, management, RTU / MTU communication methods
• Communication with open architecture (OPC) standards, Structure, interface levels, OPC data recovery guides, data sharing
• Operation Interface Design (HMI), for different scale systems, emergency management, alarms, status screens, control, graphics, reports, parallel use
• Interface with process data archiving systems and information systems.

Educational Goals

The course focuses on the use of Programmable Logic Controllers (PLCs) as well as supervisory control systems (SCADA) in manufacturing and industry. It aims to highlight advanced principles of programming and application of these technologies and to present programming ways to solve complex problems with the help of advanced techniques. During the courses, industrial communication networks (Profibus, Industrial Ethernet, Profinet) are used, which are configured so that the PLCs can communicate with third party devices. Students create their own supervisory programs to control automation systems using either standard market SCADAs, or developing their own interfaces, with or without OPC Server to communicate with controller data. During the courses, reference will be made to PLC and DCS systems, showing the industry trends in both small and large installations, while implementing some of these applications in the laboratory. Upon successful completion of the course the student will be able to: • understand the operation of the PLC, DCS and SCADA systems • have highly specialized knowledge, some of which is cutting edge knowledge in a field of work and research that is the basis for original thinking, creation and innovation. • designs, develops and implements integrated automation systems with the help of PLC and SCADA • has a critical awareness of knowledge issues in the field of PLC and SCADA systems and their interconnection with different fields and technologies. • determine the operating requirements of PLC systems • check the correctness of specifications and evaluate systems • Possess specialized problem-solving skills, which are required in research and / or innovation in order to develop new knowledge and processes and to integrate knowledge from different fields .

General Skills

Managing and transformation of work or study environments that are complex, unpredictable and require new strategic approaches. Taking responsibility for contributing to professional knowledge and practices and / or for evaluating team performance strategy. Project design and management. Decision making. Search, analysis and synthesis of data and information, using the necessary technologies. Autonomous work. Teamwork. Working in an international environment. Work in an interdisciplinary environment. Production of new research ideas. Exercise criticism and self-criticism. Promotion of free, creative and inductive thinking.

Teaching Methods

Lectures, Exercises, Online guidance, Projected Presentations, E-mail communication, Online Synchronous and Asynchronous Teaching Platform (moodle).

Students Evaluation

Assessment Language: English / Greek
The final grade of the course is formed by 70% of the grade of the theoretical part and by 30% of the grade of the laboratory part. The grade of the theoretical part is formed by a written final examination. The written final examination of the theoretical part may include: Multiple choice questions, Solving problems of application of the acquired knowledge, Short answer questions, Comparative evaluation of theory elements. The examination of the Practice Exercises is carried out with the continuous evaluation of the laboratory skills and the theoretical knowledge acquired in the context of the teaching of the course with the method of continuous evaluation.

Recommended Bibliography

• Automation using PLC, Beretas Ioannis, published by Tziolas , • Programmable PLC controllers, Collins Denis, published by Tziolas (in Greek)
• Programmable logic controllers, Petruzella Frank D., Published by Tziolas, • Solutions in programming and installation P.L.C., Christos Papazaharias, published by Brettos • Industrial Informatics, King Robert – Eric, Koumbias Stavros