{"id":245603,"date":"2024-10-19T16:09:18","date_gmt":"2024-10-19T16:09:18","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-61511-22017-tc\/"},"modified":"2024-10-25T11:09:47","modified_gmt":"2024-10-25T11:09:47","slug":"bs-en-61511-22017-tc","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-61511-22017-tc\/","title":{"rendered":"BS EN 61511-2:2017 – TC"},"content":{"rendered":"

IEC 61511-2:2016 is available as \/2 which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 61511-2:2016 provides guidance on the specification, design, installation, operation and maintenance of SIFs and related SIS as defined in IEC 61511-1:2016. This second edition cancels and replaces the first edition published in 2003. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: – guidance examples based on all phases of the safety life cycle provided based on usage experience with IEC 61511 1st edition; – annexes replaced to address transition from software to application programming.<\/p>\n

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PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
239<\/td>\nNational foreword <\/td>\n<\/tr>\n
244<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
251<\/td>\nFOREWORD <\/td>\n<\/tr>\n
253<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
254<\/td>\nFigures
Figure 1 \u2013 Overall framework of IEC\u00a061511\u00a0series <\/td>\n<\/tr>\n
255<\/td>\n1 Scope
2 Normative references
3 Terms, definitions, and abbreviations <\/td>\n<\/tr>\n
256<\/td>\nAnnexes
Annex A (informative) Guidance for IEC 61511-1
A.1 Scope
A.2 Normative references
A.3 Terms, definitions and abbreviations
A.4 Conformance to the IEC 61511-1:\u2013
A.5 Management of functional safety
A.5.1 Objective
A.5.2 Guidance to "Requirements" <\/td>\n<\/tr>\n
265<\/td>\nA.6 Safety life-cycle requirements
A.6.1 Objectives
A.6.2 Guidance to "Requirements" <\/td>\n<\/tr>\n
266<\/td>\nA.6.3 Guidance to "Application program SIS safety life-cycle requirements" <\/td>\n<\/tr>\n
267<\/td>\nA.7 Verification
A.7.1 Objective
A.7.2 Guidance to "Requirements"
Figure A.1 \u2013 Application program V-Model <\/td>\n<\/tr>\n
269<\/td>\nA.8 Process hazard and risk assessment (H&RA)
A.8.1 Objectives
A.8.2 Guidance to \u201cRequirements" <\/td>\n<\/tr>\n
272<\/td>\nA.9 Allocation of safety functions to protection layers
A.9.1 Objective
A.9.2 Guidance to "Requirements of the allocation process" <\/td>\n<\/tr>\n
274<\/td>\nA.9.3 Guidance to "Requirements on the basic process control system as a protection layer" <\/td>\n<\/tr>\n
276<\/td>\nFigure A.2 \u2013 Independence of a BPCS protection layer and an initiating source in the BPCS <\/td>\n<\/tr>\n
277<\/td>\nA.9.4 Guidance to "Requirements for preventing common cause, common mode and dependent failures"
Figure A.3 \u2013 Independence of two protection layers allocated to the BPCS <\/td>\n<\/tr>\n
278<\/td>\nA.10 SIS safety requirements specification
A.10.1 Objective
A.10.2 Guidance to "General requirements"
A.10.3 Guidance to "SIS safety requirements" <\/td>\n<\/tr>\n
281<\/td>\nFigure A.4 \u2013 Relationship of system, SIS hardware, and SIS application program <\/td>\n<\/tr>\n
282<\/td>\nA.11 SIS design and engineering
A.11.1 Objective
A.11.2 Guidance to "General requirements" <\/td>\n<\/tr>\n
289<\/td>\nA.11.3 Guidance to "Requirements for system behaviour on detection of a fault"
A.11.4 Guidance to \u201cHardware fault tolerance" <\/td>\n<\/tr>\n
292<\/td>\nA.11.5 Guidance to "Requirements for selection of devices" <\/td>\n<\/tr>\n
295<\/td>\nA.11.6 Field devices
A.11.7 Interfaces <\/td>\n<\/tr>\n
297<\/td>\nA.11.8 Guidance to "Maintenance or testing design requirements" <\/td>\n<\/tr>\n
298<\/td>\nA.11.9 Guidance to "Quantification of random failure" <\/td>\n<\/tr>\n
302<\/td>\nFigure A.5 \u2013 Illustration of uncertainties on a reliability parameter <\/td>\n<\/tr>\n
303<\/td>\nFigure A.6 \u2013 Illustration of the 70\u00a0% confidence upper bound <\/td>\n<\/tr>\n
304<\/td>\nA.12 SIS application program development
A.12.1 Objective
A.12.2 Guidance to "General requirements"
Figure A.7 \u2013 Typical probabilistic distribution of target results from Monte Carlo simulation <\/td>\n<\/tr>\n
306<\/td>\nA.12.3 Guidance to "Application program design" <\/td>\n<\/tr>\n
308<\/td>\nA.12.4 Guidance to "Application program implementation" <\/td>\n<\/tr>\n
309<\/td>\nA.12.5 Guidance to "Requirements for application program verification (review and testing)" <\/td>\n<\/tr>\n
312<\/td>\nA.12.6 Guidance to "Requirements for application program methodology and tools" <\/td>\n<\/tr>\n
315<\/td>\nA.13 Factory acceptance testing (FAT)
A.13.1 Objectives
A.13.2 Guidance to "Recommendations"
A.14 SIS installation and commissioning
A.14.1 Objectives
A.14.2 Guidance to "Requirements" <\/td>\n<\/tr>\n
316<\/td>\nA.15 SIS safety validation
A.15.1 Objective
A.15.2 Guidance to "Requirements"
A.16 SIS operation and maintenance
A.16.1 Objectives <\/td>\n<\/tr>\n
317<\/td>\nA.16.2 Guidance to "Requirements" <\/td>\n<\/tr>\n
318<\/td>\nA.16.3 Proof testing and inspection <\/td>\n<\/tr>\n
320<\/td>\nA.17 SIS modification
A.17.1 Objective <\/td>\n<\/tr>\n
321<\/td>\nA.17.2 Guidance to "Requirements"
A.18 SIS decommissioning
A.18.1 Objectives
A.18.2 Guidance to "Requirements" <\/td>\n<\/tr>\n
322<\/td>\nA.19 Information and documentation requirements
A.19.1 Objectives
A.19.2 Guidance to "Requirements" <\/td>\n<\/tr>\n
323<\/td>\nAnnex B (informative) Example of SIS logic solver application program development using function block diagram
B.1 General
B.2 Application program development and validation philosophy <\/td>\n<\/tr>\n
324<\/td>\nB.3 Application description
B.3.1 General
B.3.2 Process description <\/td>\n<\/tr>\n
325<\/td>\nB.3.3 Safety instrumented functions
Figure B.1 \u2013 Process flow diagram for SIF 02.01 <\/td>\n<\/tr>\n
326<\/td>\nB.3.4 Risk reduction and domino effects
B.4 Application program safety life-cycle execution
B.4.1 General
B.4.2 Inputs to application program SRS development
Figure B.2 \u2013 Process flow diagram for SIF 06.02 <\/td>\n<\/tr>\n
327<\/td>\nFigure B.3 \u2013 Functional specification of SIF02.01 and SIF 06.02
Figure B.4 \u2013 SIF 02.01 hardware functional architecture <\/td>\n<\/tr>\n
328<\/td>\nFigure B.5 \u2013 SIF 06.02 hardware functional architecture
Figure B.6 \u2013 Hardware specification for SOV extracted from piping and instrumentation diagram <\/td>\n<\/tr>\n
329<\/td>\nB.4.3 Application program design and development
Figure B.7 \u2013 SIF 02.01 hardware physical architecture
Figure B.8 \u2013 SIF 06.02 hardware physical architecture <\/td>\n<\/tr>\n
330<\/td>\nTables
Table B.1 \u2013 Modes of operation specification <\/td>\n<\/tr>\n
333<\/td>\nFigure B.9 \u2013 Hierarchical structure of model integration <\/td>\n<\/tr>\n
335<\/td>\nFigure B.10 \u2013 Hierarchical structure of model integration including models of safety properties and of BPCS logic
Table B.2 \u2013 State transition table <\/td>\n<\/tr>\n
336<\/td>\nFigure B.11 \u2013 State transition diagram <\/td>\n<\/tr>\n
337<\/td>\nFigure B.12 \u2013 SOV typical block diagram <\/td>\n<\/tr>\n
338<\/td>\nFigure B.13 \u2013 SOV typical model block diagram <\/td>\n<\/tr>\n
340<\/td>\nFigure B.14 \u2013 Typical model block diagram implementation \u2013 BPCS part <\/td>\n<\/tr>\n
341<\/td>\nFigure B.15 \u2013 SOV application program typical model implementation \u2013 SIS part <\/td>\n<\/tr>\n
343<\/td>\nB.4.4 Application program production
B.4.5 Application program verification and testing
B.4.6 Validation
Figure B.16 \u2013 Complete model for final implementation model checking <\/td>\n<\/tr>\n
344<\/td>\nAnnex C (informative) Considerations when converting from NP technologies to PE technologies <\/td>\n<\/tr>\n
346<\/td>\nAnnex D (informative) Example of how to get from a piping and instrumentation diagram (P&ID) to application program
Figure D.1 \u2013 Example of P&ID for an oil and gas separator <\/td>\n<\/tr>\n
347<\/td>\nFigure D.2 \u2013 Example of (part of) an ESD cause & effect diagram (C&E) <\/td>\n<\/tr>\n
348<\/td>\nFigure D.3 \u2013 Example of (part of) an application program in a safety PLC function block programming <\/td>\n<\/tr>\n
349<\/td>\nAnnex E (informative) Methods and tools for application programming
E.1 Typical toolset for application programming <\/td>\n<\/tr>\n
350<\/td>\nE.2 Rules and constraints for application program design
E.3 Rules and constraints for application programming <\/td>\n<\/tr>\n
352<\/td>\nAnnex F (informative) Example SIS project illustrating each phase of the safety life cycle with application program development using relay ladder language
F.1 Overview
F.2 Project definition
F.2.1 General <\/td>\n<\/tr>\n
353<\/td>\nF.2.2 Conceptual planning
F.2.3 Process hazards analysis
F.3 Simplified process description <\/td>\n<\/tr>\n
354<\/td>\nFigure F.1 \u2013 Simplified flow diagram: the PVC process <\/td>\n<\/tr>\n
355<\/td>\nF.4 Preliminary design
F.5 IEC 61511 application
F.5.1 General <\/td>\n<\/tr>\n
356<\/td>\nFigure F.2 \u2013 SIS safety life-cycle phases and FSA stages <\/td>\n<\/tr>\n
357<\/td>\nTable F.1 \u2013 SIS safety life-cycle overview <\/td>\n<\/tr>\n
359<\/td>\nF.5.2 Step F.1: Hazard & risk assessment
F.5.3 Hazard identification
F.5.4 Preliminary hazard evaluation
F.5.5 Accident history
Table F.2 \u2013 SIS safety life-cycle \u2013 Box 1 <\/td>\n<\/tr>\n
361<\/td>\nTable F.3 \u2013 Some physical properties of vinyl chloride <\/td>\n<\/tr>\n
362<\/td>\nF.6 Preliminary process design safety considerations
F.7 Recognized process hazards <\/td>\n<\/tr>\n
363<\/td>\nF.8 Process design definitions strategy <\/td>\n<\/tr>\n
365<\/td>\nFigure F.3 \u2013 Example of the preliminary P&ID for PVC reactor unit <\/td>\n<\/tr>\n
366<\/td>\nF.9 Preliminary hazard assessment
F.9.1 General <\/td>\n<\/tr>\n
367<\/td>\nTable F.4 \u2013 What-If\/Checklist <\/td>\n<\/tr>\n
368<\/td>\nTable F.5 \u2013 HAZOP <\/td>\n<\/tr>\n
369<\/td>\nTable F.6 \u2013 Partial summary of hazard assessment for SIF strategy development <\/td>\n<\/tr>\n
370<\/td>\nF.9.2 Step F.2: Allocation of safety functions <\/td>\n<\/tr>\n
371<\/td>\nF.10 SIF safety integrity level determination
F.11 Layer of protection analysis (LOPA) applied to example
Table F.7 \u2013 SIS safety life-cycle \u2013 Box 2 <\/td>\n<\/tr>\n
372<\/td>\nF.12 Tolerable risk criteria <\/td>\n<\/tr>\n
373<\/td>\nTable F.8 \u2013 Tolerable risk ranking <\/td>\n<\/tr>\n
374<\/td>\nTable F.9 \u2013 VCM reactor example: LOPA based integrity level <\/td>\n<\/tr>\n
375<\/td>\nF.13 Step F.3: SIS safety requirements specifications
F.13.1 Overview
F.13.2 Input requirements
Table F.10 \u2013 SIS safety life-cycle \u2013 Box 3
Table F.11 \u2013 Safety instrumented functions and SILs <\/td>\n<\/tr>\n
376<\/td>\nF.13.3 Safety functional requirements
Table F.12 \u2013 Functional relationship of I\/O for the SIF(s)
Table F.13 \u2013 SIS sensors, normal operating range & trip points <\/td>\n<\/tr>\n
377<\/td>\nF.13.4 Safety integrity requirements <\/td>\n<\/tr>\n
378<\/td>\nF.14 Functional description and conceptual design
F.14.1 Narrative for example reactor system logic <\/td>\n<\/tr>\n
379<\/td>\nF.15 SIL verification calculations
Table F.14 \u2013 Cause and effect diagram <\/td>\n<\/tr>\n
380<\/td>\nTable F.15 \u2013 MTTFd figures of SIS F.1 devices <\/td>\n<\/tr>\n
381<\/td>\nFigure F.4 \u2013 SIF S-1 Bubble diagram showing the PFDavg of each SIS device <\/td>\n<\/tr>\n
382<\/td>\nFigure F.5 \u2013 S-1 Fault tree <\/td>\n<\/tr>\n
383<\/td>\nFigure F.6 \u2013 SIF S-2 Bubble diagram showing the PFDavg of each SIS device <\/td>\n<\/tr>\n
384<\/td>\nFigure F.7 \u2013 SIF S-2 fault tree <\/td>\n<\/tr>\n
385<\/td>\nFigure F.8 \u2013 SIF S-3 Bubble diagram showing the PFDavg of each SIS device <\/td>\n<\/tr>\n
386<\/td>\nF.16 Application program requirements
Figure F.9 \u2013 SIF S-3 fault tree <\/td>\n<\/tr>\n
387<\/td>\nFigure F.10 \u2013 P&ID for PVC reactor unit SIF <\/td>\n<\/tr>\n
388<\/td>\nFigure F.11 \u2013 Legend (1 of 5) <\/td>\n<\/tr>\n
393<\/td>\nF.17 Step F.4: SIS safety life-cycle
F.18 Technology and device selection
F.18.1 General
F.18.2 Logic solver
Table F.16 \u2013 SIS safety life-cycle \u2013 Box 4 <\/td>\n<\/tr>\n
394<\/td>\nF.18.3 Sensors
F.18.4 Final elements
F.18.5 Solenoid valves <\/td>\n<\/tr>\n
395<\/td>\nF.18.6 Emergency vent valves
F.18.7 Modulating valves
F.18.8 Bypass valves
F.18.9 Human-machine interfaces (HMIs) <\/td>\n<\/tr>\n
396<\/td>\nF.18.10 Separation <\/td>\n<\/tr>\n
397<\/td>\nF.19 Common cause and systematic failures
F.19.1 General
F.19.2 Diversity
F.19.3 Specification errors
F.19.4 Hardware design errors <\/td>\n<\/tr>\n
398<\/td>\nF.19.5 Software design errors
F.19.6 Environmental overstress
F.19.7 Temperature
F.19.8 Humidity <\/td>\n<\/tr>\n
399<\/td>\nF.19.9 Contaminants
F.19.10 Vibration
F.19.11 Grounding
F.19.12 Power line conditioning
F.19.13 Electro-magnetic compatibility (EMC) <\/td>\n<\/tr>\n
400<\/td>\nF.19.14 Utility sources <\/td>\n<\/tr>\n
401<\/td>\nF.19.15 Sensors
F.19.16 Process corrosion or fouling
F.19.17 Maintenance
F.19.18 Susceptibility to mis-operation
F.19.19 SIS architecture <\/td>\n<\/tr>\n
402<\/td>\nF.20 SIS application program design features
Figure F.12 \u2013 SIS for the VCM reactor <\/td>\n<\/tr>\n
403<\/td>\nF.21 Wiring practices
F.22 Security <\/td>\n<\/tr>\n
404<\/td>\nF.23 Step F.5: SIS installation, commissioning, validation
F.24 Installation
Table F.17 \u2013 SIS safety life-cycle \u2013 Box 5 <\/td>\n<\/tr>\n
405<\/td>\nF.25 Commissioning <\/td>\n<\/tr>\n
406<\/td>\nF.26 Documentation
F.27 Validation <\/td>\n<\/tr>\n
407<\/td>\nF.28 Testing <\/td>\n<\/tr>\n
408<\/td>\nTable F.18 \u2013 List of instrument types and testing procedures used <\/td>\n<\/tr>\n
420<\/td>\nF.29 Step F.6: SIS operation and maintenance
Table F.19 \u2013 Interlock check procedure bypass\/simulation check sheet
Table F.20 \u2013 SIS safety life-cycle \u2013 Box 6 <\/td>\n<\/tr>\n
421<\/td>\nTable F.21 \u2013 SIS trip log
Table F.22 \u2013 SIS device failure log <\/td>\n<\/tr>\n
423<\/td>\nF.30 Step F.7: SIS Modification
F.31 Step F.8: SIS decommissioning
F.32 Step F.9: SIS verification
Table F.23 \u2013 SIS safety life-cycle \u2013 Box 7
Table F.24 \u2013 SIS safety life-cycle \u2013 Box 8 <\/td>\n<\/tr>\n
424<\/td>\nF.33 Step F.10: Management of functional safety and SIS FSA
Table F.25 \u2013 SIS safety life-cycle \u2013 Box 9
Table F.26 \u2013 SIS safety life-cycle \u2013 Box 10 <\/td>\n<\/tr>\n
425<\/td>\nF.34 Management of functional safety
F.34.1 General
F.34.2 Competence of personnel
F.35 Functional safety assessment <\/td>\n<\/tr>\n
426<\/td>\nAnnex G (informative) Guidance on developing application programming practices
G.1 Purpose of this guidance
G.2 Generic safe application programming attributes
G.3 Reliability
G.3.1 General <\/td>\n<\/tr>\n
427<\/td>\nG.3.2 Predictability of memory utilisation <\/td>\n<\/tr>\n
428<\/td>\nG.3.3 Predictability of control flow <\/td>\n<\/tr>\n
430<\/td>\nG.3.4 Accounting for precision and accuracy <\/td>\n<\/tr>\n
432<\/td>\nG.3.5 Predictability of timing
G.4 Predictability of mathematical or logical result <\/td>\n<\/tr>\n
433<\/td>\nG.5 Robustness
G.5.1 General
G.5.2 Controlling use of diversity <\/td>\n<\/tr>\n
434<\/td>\nG.5.3 Controlling use of exception handling <\/td>\n<\/tr>\n
435<\/td>\nG.5.4 Checking input and output <\/td>\n<\/tr>\n
436<\/td>\nG.6 Traceability
G.6.1 General
G.6.2 Controlling use of built-in functions
G.6.3 Controlling use of compiled libraries
G.7 Maintainability
G.7.1 General <\/td>\n<\/tr>\n
437<\/td>\nG.7.2 Readability <\/td>\n<\/tr>\n
440<\/td>\nG.7.3 Data abstraction <\/td>\n<\/tr>\n
441<\/td>\nG.7.4 Functional cohesiveness
G.7.5 Malleability
G.7.6 Portability <\/td>\n<\/tr>\n
443<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Tracked Changes. Functional safety. Safety instrumented systems for the process industry sector – Guidelines for the application of IEC 61511-1<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2020<\/td>\n447<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":245611,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[697,2641],"product_tag":[],"class_list":{"0":"post-245603","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-35-240-50","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/245603","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/245611"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=245603"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=245603"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=245603"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}