A Quick Guide to Functional Safety, SIL & SIS Cybersecurity

Functional Safety is a relatively new discipline, which has become prominent only recently, in the past couple of decades. It will continue to rapidly gain importance, due to the strong push from managements to automate factories and process facilities, while making processes safer and more environment friendly.This book is intended for those technical or managerial professionals, who want a quick guide that gives them an overall idea of the concept of Functional Safety & its management, Safety Instrumented Systems (SIS), Safety Integrity Level (SIL) and cybersecurity aspects of SIS, without going into too many details or complex calculations, that are generally associated with this subject. The idea for this guide came about because many professionals (including those with an engineering background), expressed a desire to this author about knowing more on this subject, without delving too deep into technical jargon, complex math & probabilistic calculations, or struggling to interpret the legalese of published standards. They wanted a quick overview of the subject, without becoming an expert in it. Hence this guide was written, to help get that quick overview. If you like the subject, of course you can study it in more depth and qualify as a certified Safety Instrumented Systems professional. The language has been kept deliberately simple, so it is quite easy to read and grasp “quickly”, as the title suggests. Here are the TABLE OF CONTENTS INTRODUCTION What do we mean by Safety? How do we define Safety? How do we classify the different kinds of safety in industry? What is Occupational Safety? What is Process Safety? What is Functional Safety? Example: Overfill prevention Which industries and business sectors use Functional Safety? Role of Functional Safety in infamous industrial accidents BASIC CONCEPTS- HAZARDS, RISKS AND OTHER TERMS What is a Hazard? What is Risk? What is Harm? RISK REDUCTION What is Risk Reduction? How much Risk Reduction is enough? ALARP SAFETY INSTRUMENTED SYSTEMS What is a Safety Function? Safety Instrumented Function (SIF) Demand Low Demand High Demand Continuous Demand FAILURES & RELIABILITY Functional Safety Devices versus Industrial Devices Types of Failures SAFETY INTEGRITY LEVEL (SIL) SIL 1 to SIL 4 Systematic Capability (SC) Architectural Constraints What is a SIL Study? Important Caveats about SIL STANDARDS IEC 61508 The Safety Life Cycle Concept Safety Lifecycle phases IEC 61511 & ISA S84 Safety Life Cycle in IEC 61511 Safety Requirements Specification Should we use certified devices? FUNCTIONAL SAFETY MANAGEMENT (FSM) Setting up & implementing an FSM Competency & Training Validation and Periodic Proof Tests Periodic Proof Tests SIS CYBERSECURITY Why SIS cybersecurity? Why now? What is the difference between Safety and Security? IEC 61508 clauses related to security Interpretation of the Clauses IEC 61511 clauses related to cybersecurity.Final Words Get this guide today, to get a complete overview of this interesting and important subject in the fastest possible time! More information on functional safety https://www.abhisam.com/functional-safety/ Read more