PLC Hardware Basics – Part 1

Learn the fundamentals of PLC hardware, focusing on discrete inputs and outputs, and understanding the differences between sinking and sourcing modules.

Last updated November 18, 2024
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About the video

This lesson covers the fundamental aspects of PLC hardware, focusing on discrete inputs and outputs. You’ll learn how discrete signals, which are either on or off, are used in PLC systems. The video explains the difference between sinking and sourcing modules, detailing how they interact with switches, push buttons, and relay contacts. Examples illustrate how discrete input modules detect signals and how output modules control devices like lights and motor starters. By understanding these concepts, you can effectively work with PLC hardware and configure systems for various industrial applications. To get started, go to the Lesson Content tab and click on the video.

About the quiz

Each lesson contains a video, and is followed up with a simple quiz. Quizzes review information discussed within the video, with each question providing an answer justification. Helping to reinforce correct answers and helps clarify any mistakes through code citations, excerpts, and explanations, so you can better understand the material.

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Charges are rewards you earn for engaging in our learning system. You receive charges for completing both the video and the quiz in each lesson. The amount of charges available for each lesson is displayed in the “Lesson Features” box on the right. The charges you earn are based on the time it takes you to complete the lesson, which is also indicated in “Lesson Features.”




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