Course curriculum

  • 1

    Chapter 1 - Getting Started

  • 2

    Chapter 2 - The Safety Life Cycle

  • 3

    Chapter 3 - Risk Assessment Review

    • Where to start

      FREE PREVIEW

    • Risk Assessment Review

    • Setting the Scope

    • Setting the scope quiz

    • Design limits: Intended use and foreseeable misuse

    • Design limits quiz

    • Hazard Identification

    • Hazard Identification Exercise

    • Hazard identification quiz

    • Estimating Likelihood

    • Probability & Likelihood quiz

    • Task-Hazard Lists

    • Task-hazard quiz

    • Hazardous Situations and Events

    • Hazardous Situations quiz

    • Understanding the Hierarchy of Controls

    • Hierarchy of Controls quiz

    • Example Risk Assessment Worksheets

    • Case Study

    • Lesson Quality Survey

    • Chapter quiz
  • 4

    Chapter 4 - Linking Risk to Functional Safety

    • What is a Safety Function?

    • Safety function into quiz

    • Example Safety Functions

    • Optional extra reading: “Out of Control: Why Control Systems go Wrong and How to Prevent Failure - HSG238"

    • Example safety function quiz

    • Mapping Risk Parameters to Functional Safety Parameters: The Risk Scale

    • Mapping: Risk Scale quiz

    • Mapping Risk Parameters to Functional Safety Parameters: The Functional Safety Scale

    • Mapping: Functional Safety scale quiz

    • Mapping Risk Parameters to Functional Safety Parameters: The Parameter Map

    • What About the "O" Parameter?

    • Optional extra reading: Linking Risk and Reliability - Nix, Chinniah, Dosio, Fessler, Schrever

      FREE PREVIEW

    • Chapter quiz
  • 5

    Chapter 5 - Safety Functions

    • Developing the SRS - Limits

    • Developing the SRS - Limits quiz

    • Developing the SRS - the Safety Function Description

    • Safety Function Description quiz

    • Drafting the SRS for a Safety Function

    • Worked Example SRS

    • SISTEMA Cookbook 6 - Definitions of Safety Functions - What is important?

    • Chapter quiz
  • 6

    Chapter 6 - From Specification to Design - System Architectures

    • What is a "Failure Rate"?

    • Failure rate quiz

    • Understanding Performance Levels

    • Performance level quiz

    • Interlock Architectures – A little history

    • Circuit Architecture History quiz

    • Architecture, DC and MTTFD Selection

    • Architecture, DC and MTTFD selection quiz

    • Introducing Architectural Categories

    • Introducing the Architectural Categories quiz

    • Understanding Reliability Block Diagrams

    • Understanding Category B

    • Cat. B quiz

    • Understanding Category 1

    • Cat. 1 quiz

    • Understanding Category 2

    • Understanding Category 3

    • Understanding Category 4

    • SISTEMA Cookbook 4 - When the Architectures Don't Match

    • Chapter quiz
  • 7

    Chapter 7 - Components and Mean Time to Dangerous Failure

    • Introducing MTTFD

    • Fault consideration and exclusion

    • FMEA Template

    • Military FMEA standard and technical manuals

    • Calculating MTTFD for a single component (using Annex C)

    • Estimating MTTFD for each channel

    • Example 8.2.21 SISTEMA Project Report and Project File
  • 8

    Chapter 8 - Understanding Diagnostic Coverage and fault exclusion

    • Diagnostic Coverage (DC)

    • Failure Math

    • Ranking DC

    • Calculating DCavg for multiple subsystems

  • 9

    Chapter 9 - Understanding Common Cause Failure and Annex F

    • What are Common Cause Failures?

    • Random and Systematic Failures

    • Handling CCF in ISO 13849-1

    • Reviewing existing system designs
  • 10

    Chapter 10 - Safety Related Software

    • Safety Related Software

    • Development Methodology

    • Software design approaches

    • IFA Software Development Best Practices

    • Cybersecurity

    • Can PL c be achieved with a standard PLC?
  • 11

    Chapter 11 - Technical Documentation

    • SRP/CS Technical Documentation

    • Information for use

    • Conformity assessment documentation
  • 12

    Chapter 12 - Validation

    • SRP/CS System Validation

    • SRP/CS Analysis
  • 13

    Final Exam

    • Final Exam

Instructor(s)

Doug Nix, C.E.T., SM-IEEE '14

Machinery Safety Specialist

Doug is the main instructor for machinery safety and regulatory compliance topics. Specializing in industrial machinery, Doug has more than 35 years of experience in risk assessment, control systems design, functional safety and standards development. Sharing what he has learned over his career has become a passion while providing training to technicians, technologists and engineers. Besides providing consulting services to clients, Doug also writes for the Machinery Safety 101 blog, http://machinerysafety101.com. Doug co-owns Compliance inSight Consulting, and the Machinery Safety 101 blog with his partner and best friend, Kimberly Nix.

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