IEC TR 61511-4:2020(E), Functional safety – safety instrumented systems for the process industry sector, which is a Technical Report: \u2022 specifies the rationale behind all clauses and the relationship between them, \u2022 raises awareness for the most common misconceptions and misinterpretations of the clauses and the changes related to them, \u2022 explains the differences between Ed. 1 and Ed. 2 of IEC 61511-1 and the reasons behind the changes, \u2022 presents high level summaries of how to fulfil the requirements of the clauses, and \u2022 explains differences in terminology between IEC 61508-4:2010 and IEC 61511-1 Ed. 2.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | CONTENTS <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 1 Scope 2 Normative references 3 Terms, definitions and abbreviated terms 3.1 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 3.2 Abbreviated terms Table 1 \u2013 Abbreviated terms used in IEC TR 61511-4 <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 4 Background 5 Management of functional safety (IEC 61511-1 Ed. 2 Clause 5) 5.1 Why is this clause important? 5.2 Common misconceptions <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 5.3 What was changed from Ed. 1 to Ed. 2 and why? 5.3.1 Existing systems 5.3.2 Change management 5.3.3 Performance metrics and quality assurance <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 5.3.4 Competency 5.3.5 More requirements for functional safety product and service providers 5.4 Summary on how 6 Safety life cycle (IEC 61511-1 Ed. 2 Clause 6) 6.1 Why is this clause important? 6.2 Common misconceptions <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 6.3 What was changed from Ed. 1 to Ed. 2 and why? 6.4 Summary on how 7 Verification (IEC 61511-1 Ed. 2 Clause 7) 7.1 Why is this clause important? 7.2 Common misconceptions 7.3 What was changed from Ed. 1 to Ed. 2 and why? 7.4 Summary on how 8 Hazard and risk analysis (IEC 61511-1 Ed. 2 Clause 8) 8.1 Why is this clause important? <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 8.2 Common misconceptions 8.3 What was changed from Ed. 1 to Ed. 2 and why? <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 8.4 Summary on how 9 Allocation of safety functions to protection layers (IEC 61511-1 Ed. 2 Clause 9) 9.1 Why is this clause important? 9.2 Common misconceptions <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 9.3 What was changed from Ed. 1 to Ed. 2 and why? 9.3.1 Limits on BPCS protection layers 9.3.2 Requirements for claiming RRF > 10 000 in total for instrumented safeguards 9.4 Summary on how <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 10 SIS safety requirements specification (IEC 61511-1 Ed. 2 Clause 10) 10.1 Why is this clause important? 10.2 Common misconceptions <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 10.3 What was changed from Ed. 1 to Ed. 2 and why? 10.4 Summary on how 11 Design and engineering (IEC 61511-1 Ed. 2 Clause 11) 11.1 Why is this clause important? 11.2 Common misconceptions <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 11.3 What was changed from Ed. 1 to Ed. 2 and why? 11.3.1 Hardware fault tolerance <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 11.3.2 Security risk requirements 11.3.3 Safety manual 11.3.4 Requirements for system behaviour on detection of a fault <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 11.3.5 Limitations on field device communication design 11.4 Summary on how 12 Application program development (IEC 61511-1 Ed. 2 Clause 12) 12.1 Why is this clause important? <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 12.2 Common misconceptions 12.3 What was changed from Ed. 1 to Ed. 2 and why? 12.4 Summary on how 13 Factory acceptance test (IEC 61511-1 Ed. 2 Clause 13) 13.1 Why is this clause important? <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 13.2 Common misconceptions 13.3 What was changed from Ed. 1 to Ed. 2 and why? 13.4 Summary on how 14 Installation (IEC 61511-1 Ed. 2 Clause 14) 14.1 Why is this clause important? <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 14.2 Common misconceptions 14.3 What was changed from Ed. 1 to Ed. 2 and why? 14.4 Summary on how 15 Validation (IEC 61511-1 Ed. 2 Clause 15) 15.1 Why is this clause important? 15.2 Common misconceptions 15.3 What was changed from Ed. 1 to Ed. 2 and why? 15.4 Summary on how <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 16 Operation and maintenance (IEC 61511-1 Ed. 2 Clause 16) 16.1 Why is this clause important? 16.2 Common misconceptions <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | 16.3 What was changed from Ed. 1 to Ed. 2 and why? 16.3.1 Fault detection, bypassing, and compensating measures 16.3.2 Proof testing after repair and change 16.4 Summary on how 17 Modification (IEC 61511-1 Ed. 2 Clause 17) 17.1 Why is this clause important? 17.2 Common misconceptions <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | 17.3 What was changed from Ed. 1 to Ed. 2 and why? 17.3.1 Planning for and completing change 17.4 Summary on how 18 Decommissioning (IEC 61511-1 Ed. 2 Clause 18) 18.1 Why is this clause important? 18.2 Common misconceptions <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | 18.3 What was changed from Ed. 1 to Ed. 2 and why? 18.3.1 Planning for and completing change 18.4 Summary on how 19 Documentation (IEC 61511-1 Ed. 2 Clause 19) 19.1 Why is this clause important? 19.2 Common misconceptions 19.3 What was changed from Ed. 1 to Ed. 2 and why? 19.4 Summary on how <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | 20 Definitions (IEC 61511-1 Ed. 2 Clause 3) 20.1 Why is this clause important? 20.2 Common misconceptions 20.3 What was changed from Ed. 1 to Ed. 2 and why? Table 2 \u2013 Rationale for IEC 61511-1 Ed. 2 terms and definitions <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | 20.4 Summary on how <\/td>\n<\/tr>\n | ||||||
| 40<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Functional safety. Safety instrumented systems for the process industry sector – Explanation and rationale for changes in IEC 61511-1 from Edition 1 to Edition 2<\/b><\/p>\n |