Overview :
Now in its second edition, Introduction to Programmable Logic Controllers contains an all-new chapter on micro PLCs as well as newly available, manufacturer-specific photos to illustrate principles of PLC operation. Updated to include recent industry innovations, and expanded as a result of reader feedback, this book begins with an orientation to the general principles underlying all PLC operations which features leading manufacturers such as General Electric, Omron, Mitsubishi, and Seimens.  Subsequent chapters invite readers to delve into the Rockwell Automation/Allen-Bradley SLC 500 family of PLCs, exploring their operation and instruction set(s) in detail. A well-engineered, fully integrated supplement package is also available for educators and trainers seeking to use this book to deliver a professional-level, hands-on PLC learning experience with minimal advanced preparation.

Features:

• Improved organization enables readers to proceed more quickly to hands-on lab work, enhancing their ability to assimilate new concepts as they develop a solid foundation in PLC operations.
• Straightforward explanations - plus an expanded glossary - assist readers who may be new to the world of PLCs in understanding and using industry terminology.
• The illustrations have been updated to ensure that readers are introduced to the most current, state-of-the-art PLC hardware as they gain an understanding of basic PLC operations.
• The companion Lab Manual steps readers through the use of Rockwell's RSLogix 500 and RSLinx software to create and edit running ladder programs and develop new projects.
• Ready-to-use PowerPoint™ slides are available to introduce each section of the book, while pre-developed running ladder programs (in the Lab Manual) may be used to demonstrate fundamental PLC operations.

Table of Contents:

1. Welcome To The World Of Programmable Controllers.
2. Introduction To Micro PLCs
3. Programming The Programmable Controller
4. Number Systems
5. Introduction to PLC Operation
6. Introduction to Logic
7. Input Modules
8. Output Modules
9. Putting Together A Modular PLC
10. PLC Processors
11. Program And Data Organization Inside A PLC Processor
12. Basic Relay Instructions
13. Understanding Relay Instructions And The Programmable Controller
14. Documenting Your System
15. Timer And Counter Instructions
16. Comparison And Data Handling Instructions
17. Sequencer Instructions
18. Appendix A: Instruction Set Reference
19. Appendix B: Status File Overview
20. Appendix C: Hexadecimal numbers and PLC masking applications
21. Glossary
22. Index