This is a book with a unique pedagogical approach to teach how to design Fieldbus networks. It has been designed and used as a textbook to teach senior and graduate level engineering students how to design Fieldbus networks even for the most complicated hazardous environments. The book is enriched with many realistic design examples using the most recent intrinsically safe design practices like High Power Trunk and Split-entity barriers. Both students and practicing engineers can benefit from its approach and learn design principles through design examples. Highlights of the book: * Incorporates latest engineering recommendations for designing Foundation Fieldbus networks,* Includes design guidelines and recommendations used by experienced design teams of major corporations for designing Foundation Fieldbus networks,* 37 realistic design examples with detailed solutions which leads the reader step-by-step through the design process,* Incorporates numerous design examples utilizing contemporary intrinsically safe design methods like; FISCO, FNICO, High Power Trunk, HPT, Entity and Split-entity methods,* Design examples applying alternative IS design methodologies which enables the reader to compare complexities of different IS design methods,* Utilizes and points out freely available engineering resources and Computer-Aided-Engineering tools for designing Fieldbus networks,* Utilizes unique and systematic design procedures developed by the author to design Fieldbus networks, handling many levels of complexities encountered during the design process systematically,* Provides up-to-date design specifications for Foundation Fieldbus networks as it is being practiced in the most demanding applications today.