Programmable Logic Controllers emphasizes practical use of the PLC in process and industrial control systems. The textbook begins with the basics of what a PLC is and does, then guides students through the fundamentals of programming the device. Applications, testing procedures, and operational aspects of PLC equipment and systems are discussed. This text covers the most common programmable logic controller functions, providing practical examples based on the widely used Allen-Bradley Small Logic Controller (SLC 500) series of PLCs. Wiring and programming of a PLC are covered thoroughly, using numerous examples. A supplemental Laboratory Manual provides a wealth of hands-on activities that will help students practice and hone their PLC programming skills. Included in the textbook is a CD-ROM containing LogixPro simulation software. LogixPro is the ideal tool to facilitate student learning of the fundamentals of RSLogix ladder logic programming. The software allows students to practice and develop their programming skills when and where they want. LogixPro is not a replacement for RSLogix, nor is there support for file exchange or communication with actual Allen-Bradley products. The program, instead, provides a complete software-based training solution, eliminating the need for expensive PLC equipment.