A excellent introductory book for new users. The book gives the reader a good overall idea of PLCs, from history through to simple programming concepts. The book is learner outcome based. There will be a free online tutorial based on this book available in a few months. Production delayed due to the covid19 issue. Topic covered in the book are listed below : 1. History 2. Typical applications of PLCs 3. Most popular brands of PLCs 4. Types of PLCs 5. Advantages of a PLC system compared to relay logic 6. Comparison of various control systems 7. Input Module 8. Output module 9. Power Supply 10. Memory 11. Explain the function of the processor in a PLC 12. Programming Device and Indicator LEDs 13. Introduction to Ladder Diagrams 14. Sketch the schematic symbols used in ladder diagrams 15. 10. Input / Output Addressing 16. Rungs of a Ladder Diagram 17. Explain how a given simple ladder diagram would function • Concept Example #1 • Concept Example #2 • Concept Example #3 • Concept Example #4 • Concept Example #5 18. Predict the end result of a given simple ladder logic diagram • Concept Example #1 • Concept Example #2