1756-RM001B-EN-P, Using ControlLogix in SIL2 ... - Tuv-fs.com

1756-RM001B-EN-P, Using ControlLogix in SIL2 ... - Tuv-fs.com 1756-RM001B-EN-P, Using ControlLogix in SIL2 ... - Tuv-fs.com

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Table of Contents 4Additional Information onHandling Faults in theControlLogix SystemSpurious Failure EstimatesSample Probability of Failure onDemand (PFD) CalculationsAppendix CIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1Appendix DAppendix EProof Test Interval = 2 Years . . . . . . . . . . . . . . . . . . . . . . . E-1Proof Test Interval = 4 Years . . . . . . . . . . . . . . . . . . . . . . . E-3IndexPublication 1756-RM001B-EN-P - October 2003

Chapter 1SIL PolicyThis chapter introduces you to the SIL policy and how theControlLogix system meets the requirements for SIL2 certification.For information about:See page:Introduction to SIL 1-1SIL2 Certification 1-4Proof Tests 1-5SIL2-Certified ControlLogix System Components 1-6Safety Certifications and Compliances 1-7Hardware Designs and Firmware Functions 1-8Difference Between PFD and PFH 1-8SIL Compliance Distribution and Weight 1-14Agency Certifications 1-15Response Times 1-15Program Watchdog Time in ControlLogix System 1-16Contact Information When Device Failure Occurs 1-16Introduction to SILCertain catalog numbers (listed in Table 1.1 on page 1-6) of theControlLogix system are type-approved and certified for use in SIL2applications, according to IEC 61508 and AK4 applications accordingto DIN V19250. SIL requirements are based on the standards current atthe time of certification.These requirements consist of mean time between failures (MTBF),probability of failure, failure rates, diagnostic coverage and safe failurefractions that fulfill SIL2 criteria. The results make the ControlLogixsystem suitable up to, and including, SIL2. When the ControlLogixsystem is in the maintenance or programming mode, the user isresponsible for maintaining a safe state.For support in creation of programs, the PADT (Programming andDebugging Tool) is required. The PADT for ControlLogix isRSLogix 5000, per IEC 61131-3, and this Safety Reference Manual.1 Publication 1756-RM001B-EN-P - October 2003

Chapter 1SIL PolicyThis chapter <strong>in</strong>troduces you to the SIL policy and how the<strong>ControlLogix</strong> system meets the requirements for <strong>SIL2</strong> certification.For <strong>in</strong>formation about:See page:Introduction to SIL 1-1<strong>SIL2</strong> Certification 1-4Proof Tests 1-5<strong>SIL2</strong>-Certified <strong>ControlLogix</strong> System Components 1-6Safety Certifications and Compliances 1-7Hardware Designs and Firmware Functions 1-8Difference Between PFD and PFH 1-8SIL Compliance Distribution and Weight 1-14Agency Certifications 1-15Response Times 1-15Program Watchdog Time <strong>in</strong> <strong>ControlLogix</strong> System 1-16Contact Information When Device Failure Occurs 1-16Introduction to SILCerta<strong>in</strong> catalog numbers (listed <strong>in</strong> Table 1.1 on page 1-6) of the<strong>ControlLogix</strong> system are type-approved and certified for use <strong>in</strong> <strong>SIL2</strong>applications, accord<strong>in</strong>g to IEC 61508 and AK4 applications accord<strong>in</strong>gto DIN V19250. SIL requirements are based on the standards current atthe time of certification.These requirements consist of mean time between failures (MTBF),probability of failure, failure rates, diagnostic coverage and safe failurefractions that fulfill <strong>SIL2</strong> criteria. The results make the <strong>ControlLogix</strong>system suitable up to, and <strong>in</strong>clud<strong>in</strong>g, <strong>SIL2</strong>. When the <strong>ControlLogix</strong>system is <strong>in</strong> the ma<strong>in</strong>tenance or programm<strong>in</strong>g mode, the user isresponsible for ma<strong>in</strong>ta<strong>in</strong><strong>in</strong>g a safe state.For support <strong>in</strong> creation of programs, the PADT (Programm<strong>in</strong>g andDebugg<strong>in</strong>g Tool) is required. The PADT for <strong>ControlLogix</strong> isRSLogix 5000, per IEC 61131-3, and this Safety Reference Manual.1 Publication <strong>1756</strong>-<strong>RM001B</strong>-<strong>EN</strong>-P - October 2003

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