The third volume of the Instrument Engineers' Handbook, Third Edition continues to provide a current, in-depth review of digital communications and control systems. The book focuses on the transportation of digital information by buses and networks, but also describes a variety of process-control software packages for plant optimization, maintenance, and safety related applications. Topics include plant design and modernization, safety and operations-related logic systems, and the design of integrated workstations and control centers. An appendix provides practical information, including bidders lists and addresses, steam tables, and materials selection for corrosive services.