Programmable Logic Controllers: Principles And Applications

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The updated fifth edition of this established international text, offers a complete and accessible intro-duction to the key principles and applications of programmable logic controllers (PLCs). Divided into eight sections, the text first presents the basics of PLCs and then goes on to provide comprehensive treatment of the new advanced PLC models, their functions and programming capa-bilities. This generic approach enables broad understanding of the subject. Suitable for students of computer science and electronics engineer-ing, this pedagogically sound text includes numerous examples, illustrations, and multiple choice and other objective type questions. Table of Contents I: PLC BASICS- 1. An Overall Look at Programmable Logic Controllers. 2. The PLC: A Look Inside. 3. General PLC Programming Procedures. 4. Devices to Which PLC Input and Output Modules Are Connected. II: BASIC PLC PROGRAMMING- 5. Programming On/Off Inputs to Produce On-Off Outputs. 6. Relation of Digital Gate Logic to Contact/Coil Logic. 7. Creating Ladder Diagrams from Process Control Descriptions. III: BASIC PLC FUNCTIONS- 8. Register Basics. 9. PLC Timer Functions. 10. PLC Counter Functions. IV: INTERMEDIATE FUNCTIONS- 11. PLC Arithmetic Functions. 12. PLC Number Comparison Functions. 13. Numbering Systems and PLC Number Conversion Functions. V: DATA HANDLING FUNCTIONS- 14. The PLC SKIP and MASTER CONTROL RELAY Functions. 15. Jump Functions. 16. PLC Data Move Systems. 17. Other PLC Data Handling Functions. VI: PLC FUNCTIONS WORKING WITH BITS- 18. PLC Digital Bit Functions and Applications. 19. PLC Sequencer Functions. 20. Controlling a Robot with a PLC. 21. PLC Matrix Functions. VII: ADVANCED PLC FUNCTIONS- 22. Analog PLC Operation. 23. PID Control of Continuous Processes. 24. Networking PLCs. VIII: RELATED TOPICS- 25. Alternative Programming Languages. 26. PLC Auxiliary Commands and Functions. 27. PLC Installation, Troubleshooting, and Maintenance. 28. Selecting a PLC. APPENDIXES- A. PLC Manufacturers. B. Operation Simulation and Monitoring. C. Commonly Used Circuit Symbols. D. Major PLC Instruction, Function, and Word Codes by Typical Manufacturers. Glossary. Bibliography. Index.