IEC 61131-3: Programming Industrial Automation Systems: Concepts and Programming Languages, Requirements for Programming Systems, Decision-Making Aids
From the reviews of the first edition:"This book provides a comprehensive introduction to IEC61131-3, the new International Electrotechnical Commission standard governing the concepts and programming languages for industrial control systems. … Through its coverage of the subject, this superb reference text will be invaluable to PLC experts and students alike." (Assembly Automation, Vol. 22 (1), 2002)