Download PDF Programmable Controllers Theory and Implementation Second Edition L.A. Bryan

Sinopsis

Every aspect of industry—from power generation to automobile painting to food packaging—uses programmable controllers to expand and enhance production. In this book, you will learn about all aspects of these powerful and versatile tools. This chapter will introduce you to the basics of programmable controllers—from their operation to their vast range of applications. In it, we will give you an inside look at the design philosophy behind their creation, along with a brief history of their evolution. We will also compare programmable controllers to other types of controls to highlight the benefits and drawbacks of each, as well as pinpoint situations where PLCs work best. When you finish this chapter, you will understand the fundamentals of programmable controllers and be ready to explore the number systems associated with them.

Programmable logic controllers, also called programmable controllers or PLCs, are solid-state members of the computer family, using integrated circuits instead of electromechanical devices to implement control functions. They are capable of storing instructions, such as sequencing, timing, counting, arithmetic, data manipulation, and communication, to control industrial machines and processes. Figure 1-1 illustrates a conceptual diagram of a PLC application.

Content

1. Introduction to Programmable Controllers
2. Number Systems and Codes
3. Logic Concepts
4. Processors, the Power Supply, and Programming Devices
5. The Memory System and I/O Interaction
6. The Discrete Input/Output System
7. The Analog Input/Output System
8. Special Function I/O and Serial Communication Interfacing
9. Programming Languages
10. The IEC 1131 Standard and Programming Language
11. System Programming and Implementation
12. PLC System Documentation
13. Data Measurements and Transducers
14. Process Responses and Transfer Functions
15. Process Controllers and Loop Tuning
16. Artificial Intelligence and PLC Systems
17. Fuzzy Logic
18. Local Area Networks
19. I/O Bus Networks
20. PLC Start-Up and Maintenance
21. System Selection Guidelines

Click here to download