Basic Functional Safety Course

Online Training in English

basic functional safety course

Customized courses for companies.


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For courses CB1E & CB3E  go to the pre-registration form.

Online (CB1E-5P)

Option 1: Online with 5 hours of live tutoring with the Instructor.

The CB1E-5P course takes place every 2 or 3 months, depending on demand.

60 days of free access to the virtual classroom with the contents (PDFs, Videos, Excel, Word).

15 videos in english, examples, exercises and evaluation test.

Go to pre-registration form for more information.

PRICE: 565 452 EUR per participant (20% discount)

On-line (CB2E-1P)

Option 2: Online in virtual classroom with email support.

The course begins immediately after purchase.

60 days of free access to the virtual classroom with the contents (PDFs, videos, Excel, Word).

15 videos, examples, exercises and evaluation test.

Note: The videos include explanations of the content of the course PDF files with animated texts, symbols, graphics, diagrams, etc., so only an english medium level of reading is required.


Online (CB3E-5P)

Option 3: 12 hours of live class with trainers.

The CB3E-5P course takes place every 2 or 3 months, depending on demand.

Documentation: PDFs, Excel & Word files.

Customized courses for companies.

Go to pre-registration form for more information

PRICE: 750 600 EUR per participant (20% discount)

Summary of contents


-Basic concepts.

-International Standards

-What does SIF, SIS, SIL mean?

-Control System versus Safety Instrumented System

-Types of failures and examples.

-The importance of diagnostics. Types and examples.

-SIS Life Cycle

  • Analysis Phase
  • Design and Implementation Phase
  • Operation and Maintenance Phase

Documentation: 57 pages.

basic functional safety course

Phase of Analysis

-Risk concepts and how to reduce them with layers of protection.

-What is an independent protection layer (IPL)? SIS principle of independence and shared elements. Examples.

-Risk Analysis Techniques. 

-HAZOP Methodology and Risk Graph

  • Definition of nodes and identification of deviations.
  • Definition of Causes and Consequences.
  • Evaluation of the consequences.
  • Identification of safeguards (IPLs) and assigned credits.
  • Is a SIS layer necessary?
  • Determination of «SIL» with Risk Graphs.
  • Examples with Excel template.

-LOPA methodology

  • Identification of initiating events.
  • Frequency of causes and conditioning modifiers.
  • Identification of non-SIS IPLs and PFDs.
  • Calculation of the scenario frequency.
  • Comparison with the tolerable frequency defined by the Plant. Example of the risk matrix.
  • Is a SIS layer necessary? SIL assigned to the SIF.
  • Examples with Excel template.

-Exercises: HAZOP, Risk Graph and LOPA.

-Safety Requirements Specification (SRS)

Documentation: 73 pages + Excel templates + SRS

Phase of Design & Implementation

-Most used architectures and examples.

-Principles of safety system design. Safety versus Availability.

-IEC requirements and key parameters to calculate the SIL.

-Data sources of failure rates.

-Formulas to calculate PFDavg and MTTFS.

-Examples of real industry SIFs:

  • Design assumptions (transmitter configuration, used models, architecture degradation, etc.)
  • Example of tank level.
  • Example of pressure vessel.
  • Calculate the SIL achieved by Logic Solver.

-SIL Verification Report. Example.

-IEC 61511 requirements: FAT / SAT, Validation and FSA tests.

Documentation: 110 pages + Verification report

Phase of Operation & Maintenance

-Concepts and reasons for maintaining the SIS.

-Main clauses of IEC 61511:2016 on Operation & Maintenance.

-Use of the bypass and its impact.

-Proof Tests and their impact. Examples.

-Repair of the SIF and its impact.

-SIS modifications.

Documentation: 95 pages

Review of the main concepts

-General considerations to design the SIS.

-How to minimize hardware failures.

-How to minimize systematic failures.

Documentation: 10 pages

Aimed at

Students, technicians, designers, system integrators and engineers who want to learn about Safety Instrumented Systems (SIS) in the process industry.


  • PDF files with the contents.
  • Excel Templates (HAZOP, LOPA, example of SRS).
  • Example of SIL Verification Report (MS-Word + Annexe
  • Possibility of downloading some videos.
  • Certificate.