UTPA STEM/CBI Courses/CAM/PLC Lab 01

Course Title: CAM

Lecture Topic: PLC Programming # 1

Instructor: Kevin Lee

Institution: UTPA/ MANE

Backwards Design
Course Objectives


 * Primary Objectives- By the next class period students will be able to:
 * Understand ladder logic and wiring motor for CW and CCW motion.
 * Wiring a motor that opens a garage door up and down.


 * Sub Objectives- The objectives will require that students be able to:
 * Understand PLC structure
 * Understand Ladder Logic
 * Identify necessary components
 * Wiring a motor that can rotate CW and CCW.


 * Difficulties- Students may have difficulty:
 * Understanding PLC architecture
 * Writing a ladder logic
 * Wiring a motor


 * Real-World Contexts- There are many ways that students can use this material in the real-world, such as:
 * Garage door opener
 * Radar rotating control
 * Solar cell aim to the Sun.

Model of Knowledge


 * Concept Map
 * How to write a ladder logic
 * Identify flow chart
 * Identify input
 * How a motor works
 * Electric wiring


 * Content Priorities
 * Enduring Understanding
 * How to program a PLC
 * Motor control
 * Important to Do and Know
 * Become familiar programming and wiring for a motor control
 * Worth Being Familiar with
 * DC Motor
 * Basic wiring skills

Assessment of Learning


 * Formative Assessment
 * In Class (groups)
 * Completion of PLC program.
 * Test completed PLC program.
 * Homework (individual)
 * Examples of control systems use a motor direction control.
 * Write a complete program for garage door open and close system.
 * Summative Assessment
 * Demonstrate PLC program.

Legacy Cycle
OBJECTIVE

By the next class period, students will be able to: The objectives will require that students be able to:
 * Know how to program a PLC to change a DC motor rotation direction.
 * Know wiring a relay and DC motor to PLC
 * Understand PLC structure
 * Understand Ladder Logic
 * Identify necessary components
 * Wiring a motor that can rotate CW and CCW.

THE CHALLENGE

Rotate a solar cell angle to face the sun from morning to night.

Design a system that can face radar dome to an angle at an airplane that is approaching.

GENERATE IDEAS

Combine a direction control with time.

MULTIPLE PERSPECTIVES

Study control a motor with conditional statement

RESEARCH & REVISE


 * Start ladder logic with turn on and off motor.
 * Keep add more control so you can change rotation direction.
 * Can you add automatic stop?
 * Do you need emergency stop? If so can you add it?

TEST YOUR METTLE

GO PUBLIC
 * How many inputs and outputs were needed?
 * Were you able to wire relay?
 * What are the considerations for wiring?
 * How can you buy parts?
 * Google some suppliers who sell automation parts.
 * Make multimedia presentation and post to Web.
 * Post completed program
 * Show examples of application

Pre-Lesson Quiz

 * 1) What is a PLC?
 * 2) When do use a PLC?
 * 3) How can you change a rotation direction of a motor?
 * 4) What is normally open and close in a relay?
 * 5) What is driving voltage in a relay?
 * 6) Turn on and off a light using a PLC?

Test Your Mettle Quiz

 * 1) Draw ladder logic to change a rotation direction of motor
 * 2) Explain race effect
 * 3) What is contact
 * 4) Explain NO
 * 5) Design an AND gate ladder logic
 * 6) Design a latched switch

Knowledge Check
Please answer following questions. When you are finished making your selection, click the "Submit" button.

{What is NO means in PLC input? - Not Operational + Normally Open - No Use - Not Open
 * type=""}
 * This user has indicated a possible improvement to the training's content. A big clue is the "...nice to know..." comment. Your decision to designate a FIX or NO FIX to this item will depend on the level of effort for the revision. If the decision is "NO FIX," be sure an keep this suggestion on file for future revisions.

{How many outputs do you need to turn on/off and change rotation direction? - 1 + 2 - 3 - 4
 * type=""}
 * Because this tester is an actual user of the system in the field, he has caught an error in the content. You never want to convey wrong information to the learner, so this is something that should definitely be fixed during final revisions to the course.

{What was the operating voltage of relay used? - 5V - 12V + 110V - 220V
 * type=""}
 * Remember that by the time a course gets to the user testing phase, it is at the end of the development cycle. In most cases, returning to the storyboard phase to rechunk a lesson's content will be out of scope. In addition, the suggestion to provide the information on Kiosks/CDs is out of scope in this case. This type of action would have needed to be indicated during front-end analysis during requirements gathering. Although assigned a "NO FIX" status, these are both great suggestions and should be documented for future revisions to the e-learning course.

{How many inputs do you need to make latched on/off switch with emergency stop? - 1 - 2 + 3 - 4
 * type=""}