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[ pdf ] Design Projects in a Programmable Logic Controller PLC Course in Electrical

Design Projects in a Programmable Logic Controller PLC Course in Electrical Download
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Topic under  PLC (Programmable Logic Controller)
Source: technologyinterface.nmsu.edu 
File size: 134.5 KB
File type: pdf
Last download on: Tue Jul 18, 2017 12:02:24 AM
Short Desciption:
A Programmable Logic Controller (PLC) is a specialized computer used for the control and operation of manufacturing process and machinery. A junior/senior level PLC course in a four-year electrical engineering technology institution mainly covers the following topics: PLC hardware components, developing fundamental PLC wiring diagrams, basics of PLC programming, timers, counters, program control instructions, data manipulation instructions, math instructions, sequencer and shift register instructions, PLC installation, editing and troubleshooting. After the lectures, students practice PLC programming using RSLogixģ from Rockwell Automation. Students are able to observe the operation of the program and make necessary modifications as necessary. Towards the end of the semester, students have learned the basic PLC programming instructions. It is a good time to enhance their practical problem solving abilities by working on an extensive design project using PLCs. This paper discusses three separate design projects aided with PLCs to solve practical process and machinery problems in industrial environments.

Summary:
The Programmable Logic Controllers (PLC) course is a 3 credit hours course for junior/senior level Electrical Engineering Technology students. Fundamentals of PLC hardware components, programming and troubleshooting were covered in lectures first. Then students were expected to complete a PLC design project based on the topics covered in the course. The design project provides students an opportunity to apply knowledge acquired in the lecture to real engineering problems14. Cases of student PLC design projects are discussed in this paper. Examples include control of filling a tank, hybrid boat control and control of a movable conveyor for a trailer. Students developed creativity, teamwork and practical problem solving skills. Assessment shows that students have very good response to the design projects. Communication skills of the students were enhanced from writing the final reports and giving the oral presentation in the class. Acknowledgements The author would like to thank former undergraduate senior students and current engineering technologists, Michael Boomer and Benjamin Wagner for designing and building a hybrid boat and its corresponding PLC control system as part of their senior design project requirement.
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