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PLCs for Beginners

You're reading from   PLCs for Beginners An introductory guide to building robust PLC programs with structured text

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Product type Paperback
Published in May 2024
Publisher Packt
ISBN-13 9781803230931
Length 380 pages
Edition 1st Edition
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Author (1):
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M. T. White M. T. White
Author Profile Icon M. T. White
M. T. White
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Toc

Table of Contents (25) Chapters Close

Preface 1. Part 1: Basics of Computer Science for PLC Programmers
2. Chapter 1: Computer Science Versus Automation Programming FREE CHAPTER 3. Chapter 2: PLC Components – Integrating PLCs with Other Modules 4. Chapter 3: The Basics of Programming 5. Chapter 4: Unleashing Computer Memory 6. Chapter 5: Designing Programs – Unleashing Pseudocode and Flowcharts 7. Chapter 6: Boolean Algebra 8. Part 2: Introduction to Structured Text Programming
9. Chapter 7: Unlocking the Power of ST 10. Chapter 8: Exploring Variables and Tags 11. Chapter 9: Performing Calculations in Structured Text 12. Chapter 10: Unleashing Built-In Function Blocks 13. Chapter 11: Unlocking the Power of Flow Control 14. Chapter 12: Unlocking Advanced Control Statements 15. Chapter 13: Implementing Tight Loops 16. Part 3: Algorithms, AI, Security, and More
17. Chapter 14: Sorting with Loops 18. Chapter 15: Secure PLC Programming – Stopping Cyberthreats 19. Chapter 16: Troubleshooting PLCs – Fixing Issues 20. Chapter 17: Leveraging Artificial Intelligence (AI) 21. Chapter 18: The Final Project – Programming a Simulated Robot 22. Assessments 23. Index 24. Other Books You May Enjoy

Final project – cement bag sorter

If you find yourself working on some type of bagging line, such as a line that fills cement bags, you will often need to know the lightest and heaviest bags that were produced. Typically, these statistics are used to give the overseers of the production lines a solid range of the amount of material in the bags. The overseers will often use this range as a quick check to ensure all the bags are in spec and nothing was over- or under-filled.

With this information about the project, we can now move on to laying out the requirements for it.

Requirements

The following are the requirements for the project:

  1. For this project, we’re going to assume that the customer is in a hurry and needs a quick patch that can implement the sorting behavior.
  2. We can also assume that each production run is going to be small – that is, no more than four bags of cement per run.
  3. The lightest and heaviest bags need to be highlighted...
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