This edition has been completely revised and updated to cater to the current syllabus requirements of Second Year B.Tech Marine Engineering students of the Commercial Shipping Industry, who study the subject “Applied Marine Control and Automation”. It is a precursor to Advanced Marine Control and Automation, which is studied in the Final year of the same program in India. This book contains relevant and concise information about the latest technological advances that the shipping industry has made in this sphere of engineering. It is also useful for engineering curricula in other institutions where Instrumentation and Control Engineering is a subject. Utmost care has been taken to explain each chapter in simple English and technical terms, keeping in mind the multi-lingual environment across the world.