Introduction to Safety Instrumented Systems (IEC 61508/IEC 61511) – 3 Day Training Course Outline

Day 1

Session Time Title Coverage
1 8:30 – 10:30 Fundamentals of functional safety: #1
  • Essentials of functional safety
  • Safety function: functionality & safety integrity
  • Hazardous Analysis
  • Risk Assessment
  • Risk Target / Risk Reduction models
  • IEC 61508 family of standards
  • Technology/devices applications
REFRESHMENTS
2 10:45 – 12:00 Fundamentals of functional safety: # 2
  • Strategy to achieve functional safety
  • Failure modes & failure categories
  • Safety integrity / Safety Integrity Levels
  • Overall design strategy
  • Compliance model
LUNCH
3 13:00 -14:30 Fundamentals of functional safety: # 3
  • Modes of operation:
  • (Low Demand/High Demand/Continuous)
  • Implications for SIL determination
  • Example of overall approach
  • Allocation of safety functions
4 14:30 – 16:30 Design essentials to achieve a specified SIL (IEC 61508)
  • Framework for the Design requirements:
    • Hardware Safety Integrity
    • Systematic Safety Integrity
    • Systematic Capability
    • Routes to compliance
    • Architectural constraints

Note: “Proven in use” is covered in Routes to compliance

REFRESHMENTS INCLUDED IN SESSION
16:30 DAY 1 FINISH

Day 2

Session Time Title Coverage
5 08:30 – 09:00 Simplified example: SIL achievement
  • Achievement of Safety Integrity comprising:
  • Hardware safety integrity (Architectural Constraints)
  • HFT/SFF
    Systematic safety integrity
6 09:00 – 09:45 Assurance Measures (IEC 61508)
  • Functional Safety Audit
  • Functional Safety Assessment
  • Verification & validation
  • Accreditation & Certification
  • Certification models
  • Traceability
REFRESHMENTS
7 10:00 – 11:00 Workshop #1 (IEC 61508)
  • Questions on lectures given (multi-choice)
  • Discussion
8 11:00 – 12:00 Design essentials to achieve a specified SIL (IEC 61511)
  • Relationship between IEC 61508 & IEC 61511
  • SIF Functionality & SIF Safety Integrity
  • SIF Loop
  • Safety lifecycle
  • Design requirements to achieve a specified SIL; IEC 61508 & IEC 61511 design options
  • BPCS control and protection functions
  • BPCS as a Protection Layer
  • Reliability modelling
  • Prior Use concepts
LUNCH
9 13:00 – 16:30 Design essentials to achieve a specified SIL (IEC 61511) (Continued)
  • Relationship between IEC 61508 & IEC 61511
  • SIF Functionality & SIF Safety Integrity
  • SIF Loop
  • Safety lifecycle
  • Design requirements to achieve a specified SIL; IEC 61508 & IEC 61511 design options
  • BPCS control and protection functions
  • BPCS as a Protection Layer
  • Reliability modelling
  • Prior Use concepts
REFRESHMENTS INCLUDED IN SESSION
16:30 DAY 2 FINISH

Day 3

Session Time Title Coverage
10 08:30 – 09:15 Workshop #2 (IEC 61511)
  • Questions on lectures given (multi-choice)
  • Discussion
11 09:15 – 10:15 Management of Functional Safety (IEC 61511) (including Functional Safety Assessment)
  • Organisation & resources
  • Lifecycle Management
  • Risk evaluation & risk management
  • Planning
  • Implementing & monitoring
  • Assessment, auditing & revisions
  • Competence (individual and Competence Management Systems)
REFRESHMENTS
12 10:30 – 12:00 SIL determination (including Target & Tolerable risk concepts)
  • Legal Requirements (ALARP)
  • Corporate Risk Criteria
  • Cost Benefit Analysis
  • Quantitative & qualitative approaches
  • Risk Reduction concepts/Risk Parameters: (protection layers/conditional modifiers)
  • LOPA, Risk Graphs, Fault Tree Analysis
  • Sector approaches
  • Contribution of the EUC control system (Low Demand Mode)
LUNCH
13 13:00 – 15:00 Operation & Maintenance
  • Modifications
  • Overrides
  • Functional Safety Audits
  • Functional Testing
  • Proof Testing
  • Proof Test Coverage
  • Perfect and imperfect proof testing
  • Proof Test Procedures
  • Changes to Proof Test Procedure
REFRESHMENTS
14 15:15 – 16:15 Workshop #3 (Operation & Maintenance)
  • Questions on lectures given (multi-choice)
  • Discussion
15 16:15- 16:30 Open Forum
  • Discussion/questions on any issues covered on the course
16:30 DAY 3 FINISH