Digital Logic & PLCs II

Course Number:
EET 252
Transcript Title:
Digital Logic & PLCs II
Created:
Aug 10, 2022
Updated:
May 24, 2025
Total Credits:
5
Lecture Hours:
40
Lecture / Lab Hours:
0
Lab Hours:
30
Satisfies Cultural Literacy requirement:
No
Satisfies General Education requirement:
No
Grading Options
A-F, Audit
Default Grading Options
A-F
Repeats available for credit:
0
Prerequisites

EET 251

Course Description

Expands upon the digital logic and Programmable Logic Controllers fundamentals learned in EET 251. Introduces the Function Block Diagram (FBD) and Sequential Function Chart (SFC) programming languages on the Allen-Bradley PLC platform. Covers 120v control with a PLC using interposing relays, three-phase AC motor control with a PLC using a networkable motor drive, and PLC to PLC communication over ethernet. Includes a 3 hour per week laboratory. Prerequisites: EET 251. Audit available.

Course Outcomes

Upon successful completion of this course, students will be able to:

  1. Create PLC programs in ladder logic, structured text, function block diagram, and sequential function chart programming languages.

  2. Navigate Allen-Bradley’s documentation library to locate instructions and technical specifications for both hardware and software.

  3. Network external devices to a PLC, including other PLCs and a motor drive, achieving device-to-device communication and control.

  4. Control 120v systems with a PLC using interposing relays.

Suggested Outcome Assessment Strategies

The determination of assessment strategies is generally left to the discretion of the instructor. Here are some strategies that you might consider when designing your course: writings (journals, self-reflections, pre writing exercises, essays), quizzes, tests, midterm and final exams, group projects, presentations (in person, videos, etc), self-assessments, experimentations, lab reports, peer critiques, responses (to texts, podcasts, videos, films, etc), student generated questions, Escape Room, interviews, and/or portfolios.

Course Activities and Design

The determination of teaching strategies used in the delivery of outcomes is generally left to the discretion of the instructor. Here are some strategies that you might consider when designing your course: lecture, small group/forum discussion, flipped classroom, dyads, oral presentation, role play, simulation scenarios, group projects, service learning projects, hands-on lab, peer review/workshops, cooperative learning (jigsaw, fishbowl), inquiry based instruction, differentiated instruction (learning centers), graphic organizers, etc.

Course Content

Outcome #1: Create PLC programs in ladder logic, structured text, function block diagram, and sequential function chart programming languages.

  • Ladder logic

  • Structured text

  • Function block diagram

  • Sequential function chart

  • Allen-Bradley’s CompactLogix PLC platform

Outcome #2: Navigate Allen-Bradley’s documentation library to locate instructions and technical specifications for both hardware and software.

  • AB’s literature library

  • PLC hardware and software

Outcome #3: Network external devices to a PLC, including other PLCs and a motor drive, achieving device-to-device communication and control.

  • Industrial ethernet

  • Networkable motor drives

  • Produced and consumed tags

Outcome #4: Control 120v systems with a PLC using interposing relays.

  • Interposing relays

Suggested Texts and Materials

All materials are freely available online at: