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Industrial Process Automation Systems by Y. Jaganmohan Reddy, B.R. Mehta

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Chapter 5

Functional safety and safety instrumented systems

Abstract

Definitions and an introduction and application of the functional safety in process control are discussed in this chapter. The chapter includes discussions on various systems in functional safety along with their examples; the legislation and standards that are applicable for the safety applications; the International Electrotechnical Commission standards applicable in the safety systems, the scope of the standards, and overall safety life cycle; risk analysis and safety requirements, and functions and safety integrity levels; and hazard and risk analysis and risk analysis techniques. Some of the most recent communication protocols such as foundation field bus and Profibus, ...

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