Updated to reflect recent industry developments, this edition features practical information on Rockwell Automation's SLC 500 family of PLCs and includes a no-nonsense introduction to RSLogix software and the new ControlLogix PLC. To assist readers in understanding key concepts, the art program has been modernized to include improved illustrations, current manufacturer-specific photos, and actual RSLogix software screens to visibly illustrate essential principles of PLC operation. New material has been added on ControlNet and DeviceNet, and a new chapter on program flow instructions includes updated references to the SLC 500, MicroLogix, and the PLC 5.

Table of Contents

Chapter 1 Welcome to the World of Programmable Logic Controllers Chapter 2 Micro Programmable Logic Controllers Chapter 3 Programming a Programmable Controller Chapter 4 Number Systems Chapter 5 Introduction to PLC Operation Chapter 6 Introduction to Logic Chapter 7 Input Modules Chapter 8 Output Modules Chapter 9 Putting Together a Modular PLC Chapter 10 PLC Processors Chapter 11 Introduction to ControlNet and DeviceNet Chapter 12 Processor Data Organization Chapter 13 The Basic Relay Instructions Chapter 14 Understanding Relay Instructions and the Programmable Controller Input Modules Chapter 15 Documenting Your PLC System Chapter 16 Timer and Counter Instructions Chapter 17 Comparison and Data-Handling Instructions Chapter 18 Sequencer Instructions Chapter 19 Program Flow Instructions