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ELC 243 Programmable Logic Controllers

This course covers the fundamentals of programmable logic controllers (PLC) systems. Topics include ladder logic programming, analog and digital interfacing, identification and isolation of common system faults, and writing specific tasks.

Credits

4

Prerequisite

Prerequisite: ELC 111 and (PHY 111 or concurrent)

See Course Syllabus

Course Number and Title:

ELC 243 Programmable Logic Controllers

Campus Location

  • Dover
  • Georgetown
  • Stanton

Effective Date

202651

Prerequisites

Prerequisite: ELC 111 and (PHY 111 or concurrent)

Course Credits and Hours

4 credit(s)

3 lecture hours/week

3 lab hours/week

Course Description

This course covers the fundamentals of programmable logic controllers (PLC) systems. Topics include ladder logic programming, analog and digital interfacing, identification and isolation of common system faults, and writing specific tasks.

Additional Materials

Required: Storage media for class and lab work

Recommended: TI-84+ or TI-89 Calculator

Required Text(s)

Obtain current textbook information by viewing the campus bookstore - https://www.dtcc.edu/bookstores online or visit a campus bookstore. Check your course schedule for the course number and section.

Disclaimer

None

Core Course Performance Objectives (CCPOs)

    1. Analyze the principles, applications, and operational characteristics of mechanical relays. (CCC 5; PGC 2, 3)
    2. Evaluate the major components of a PLC system. (CCC 2, 5; PGC 1, 2, 3, 4, 5)
    3. Develop PLC programs using ladder logic diagrams. (CCC 2, 5, 6; PGC 1, 2, 3, 4, 5)
    4. Develop guidelines for the installation, maintenance, and troubleshooting of a programmable logic controller system. (CCC 2, 5, 6; PGC 2, 3, 4, 5)
    5. Analyze PLC networks in manufacturing. (CCC 2, 5, 6; PGC 1, 2, 3, 4, 5)
    6. Differentiate and evaluate motor control components. (CCC 2, 5, 6; PGC 1, 2, 3, 4, 5) Demonstrate engineering code of ethics and professionalism. (CCC 1, 2, 4; PGC 3)
    7. Demonstrate engineering code of ethics and professionalism. (CCC 1, 2, 4; PGC 3)
    8. Design and implement a PLC-based project to create a functional, real-world application. (CCC 1, 2, 3, 5, 6; PGC 1, 2, 3, 4, 5)

See Core Curriculum Competencies and Program Graduate Competencies at the end of the syllabus. CCPOs are linked to every competency they develop.

Measurable Performance Objectives (MPOs)

Upon completion of this course, the student will:

  1. Analyze the principles, applications, and operational characteristics of mechanical relays.
    1. Analyze the characteristics of electromechanical, reed, and solid state relays.
    2. Interpret and assess the significance of pull-in voltage, pull-in current, minimum holding voltage, and sealed current.
    3. Design, construct, and evaluate single-pole, double-pole, and timer relay circuits based on a relay logic diagram.
  2. Evaluate the major components of a PLC system.
    1. Describe the major components of a PLC and their functional operation.
    2. Evaluate pull-in voltage, pull-in current, minimum holding voltage, and sealed current, and assess their significance.
    3. Compare fixed and modular PLCs.
    4. Differentiate between discrete and analog modules.
    5. Evaluate and interpret sinking and sourcing in relation to input/output (I/O) modules
    6. Analyze and evaluate I/O addressing in a PLC system.
    7. Analyze the PLC program scan sequence.
  3. Develop PLC programs using ladder logic diagrams.
    1. Convert wiring and ladder diagrams into PLC programs.
    2. Create ladder logic diagrams using standard logic functions such as AND, OR, NOT, NAND, NOR, XOR, and XNOR.
    3. Create ladder logic diagrams using examine if open (XIO), examine if closed (XIC), and output contacts to solve a given control problem.
    4. Create ladder logic diagrams using latch and unlatch instructions.
    5. Write advanced ladder logic diagrams using timers and counters.
    6. Create advanced PLC programs using compare, jump, and master control reset instructions.
    7. Use modular programming techniques to write effective PLC programs for readability and troubleshooting.
  4. Develop guidelines for the installation, maintenance, and troubleshooting of a programmable logic controller system.
    1. Construct a comprehensive set of criteria for designing a PLC enclosure.
    2. Analyze and evaluate proper grounding practices and preventative maintenance tasks essential for the reliability of PLC systems.
    3. Assess PLC hardware and software troubleshooting procedures.
    4. Evaluate the risks associated with forcing inputs and outputs during troubleshooting PLC systems.
  5. Analyze PLC networks in manufacturing.
    1. Identify and categorize the common devices, cables, elements, addressing methods, configurations, and network protocols utilized in PLC networks.
    2. Analyze and differentiate the characteristics of common network protocols used in industrial control systems.
    3. Configure a network using common network protocols.
    4. Use service communication instructions and message read/write instructions to create PLC ladder logic diagrams.
  6. Differentiate and evaluate motor control components.
    1. Evaluate the major types of motor control devices, including motor starters, motor drives, and overload relays.
    2. Evaluate a power relay (Contactor), solid state relay.
    3. Analyze and distinguish between temperature and magnetic overload relays, focusing on their principles and applications.
    4. Evaluate safety considerations and best practices for the use of power relays.
    5. Analyze the functions and applications of variable frequency drives (VFD), soft starters, and plugging for reversing motor direction.
    6. Evaluate the functions and applications of motor drives versus motor starters.
  7. Demonstrate engineering code of ethics and professionalism.
    1. Apply engineering codes of ethics to resolve hypothetical scenarios.
    2. Describe and apply professionalism in classroom activities.
  8. Design and implement a PLC-based project to create a functional, real-world application.
    1. Collaboratively design and implement an interactive project as a team.
    2. Create a comprehensive project report using word processing software, including detailed schematic diagram.
    3. Deliver a formal presentation defending the project design, detailing troubleshooting techniques, and showcasing the final project.

Evaluation Criteria/Policies

The grade will be determined using the Delaware Tech grading system:

90-100 = A
80-89 = B
70-79 = C
0-69 = F
Students should refer to the Catalog/Student Handbook for information on the Academic Standing Policy, the Academic Integrity Policy, Student Rights and Responsibilities, and other policies relevant to their academic progress.

Final Course Grade

Calculated using the following weighted average

Evaluation Measure

Percentage of final grade

Summative Assessments

2 - 3 Exams (equally weighted)

30%

8-10 Laboratory Activities (equally weighted)

30%

Final Project

20%

Formative Assessments

Homework

10%

Quizzes

10%

TOTAL

100%

Program Graduate Competencies (PGCs are the competencies every graduate will develop specific to his or her major)


  1. Apply practical knowledge of mathematics, science, engineering, and technology to electronics engineering technology problems. 
  2. Conduct, analyze, and interpret experiments using analysis tools and troubleshooting methods. 
  3. Demonstrate the ability to read and interpret electrical wiring, schematics and technical documentation. 
  4. Utilize programming concepts to develop solutions for electronics engineering technology problems. 
  5. Operate, integrate, and configure electronic components, ensuring proper functionality and adherence to safety and design specifications. 

Core Curriculum Competencies (CCCs are the competencies every graduate will develop)

  1. Apply clear and effective communication skills.
  2. Use critical thinking to solve problems.
  3. Collaborate to achieve a common goal.
  4. Demonstrate professional and ethical conduct.
  5. Use information literacy for effective vocational and/or academic research.
  6. Apply quantitative reasoning and/or scientific inquiry to solve practical problems.

Students in Need of Accommodations Due to a Disability

We value all individuals and provide an inclusive environment that fosters equity and student success. The College is committed to providing reasonable accommodations for students with disabilities. Students are encouraged to schedule an appointment with the campus Disabilities Support Counselor to request an accommodation needed due to a disability. The College's policy on accommodations for persons with disabilities can be found in the College's Guide to Requesting Academic Accommodations and/or Auxiliary Aids Students may also access the Guide and contact information for Disabilities Support Counselors through the Student Resources web page under Disabilities Support Services, or visit the campus Advising Center.

Minimum Technology Requirements

Minimum technology requirements for online, hybrid, video conferencing and web conferencing courses.

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Cell phone/Electronic Device

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Tuition Adjustment Policy

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