Course at a Glance
Code: CSS
Course Length: 3 Months

In this interactive 3 month LIVE ONLINE course, you will learn:

  • Fundamentals of risk assessment and the role of safety regulations
  • Process hazard study methods including HAZOP
  • Principles of risk reduction by Safety Instrumented Systems (SIS)
  • The differences between a basic control system and an SIS
  • The roles of standards IEC 61508 and IEC 61511
  • The principles and application of the safety life cycle for project management
  • The meaning and implications of Safety Integrity Levels (SILs)
  • How to use fault tree analysis to predict accident rates and failure rates
  • How SIL targets are determined
  • The role of alarms in safety critical applications
  • How to design the SIS to meet IEC requirements for SIL targets
  • Key features of safety certified PLCs
  • Understand failure modes and the concepts of fault tolerance
  • How to calculate failure probabilities for single and redundant SIS designs
  • How to select instruments and controllers suitable for safety systems
  • How to manage the application software project for your safety system
  • Methods for avoidance of spurious trips
  • How to optimise proof testing intervals

Contact us for future course dates.

Course Details


This course is for engineers and technicians who wish to develop their knowledge of the design and implementation of safety instrumented systems as applied to industrial processes. Safety control systems are widely used in hazardous processes to protect people, the environment and equipment against serious harm. Many countries look for compliance to international standards IEC 61508 and IEC 61511 as a benchmark of acceptable quality in design and management of safety controls.

This course will explain the key requirements of the IEC 61511 standard for all stages of the safety project from hazard and risk assessment studies through to hardware and software engineering and on to the maintenance and proof testing regimes. Practical examples and discussions will assist you to develop your skills in this most important aspect of instrument engineering.

Course Outline

MODULE 1: Overview of Safety Instrumented Systems

Safety system basics with an example SIS
Hazards, risks and risk reduction
Principles of safety management
Functional safety standards IEC 61508/61511
Setting SIL targets
Designing to meet SIL targets
Cost of ownership

MODULE 2: Safety Life Cycle Models

Purpose of life cycle models
IEC 61511 requirements
Step by step activities

MODULE 3: Hazard Study Methods

Hazard studies and project stages
Hazard identification methods
HAZOP method
Developing SIS requirements
Fault tree analysis

MODULE 4: Risk Reduction by SIS

Deciding risk targets
Principle of ALARP and tolerable risk
Layers of protection and role of alarms
Risk reduction models
Preparing a safety requirements Specification

MODULE 5: SIL Determination Methods

Quantitative and risk matrix methods
Risk graphs
Layers of protection analysis
Practical examples

MODULE 6: Designing SIS Structures

Design procedure steps
IEC 61511 guidelines
Architectures and fault tolerance
Choosing the right structures for the job

MODULE 7: Selecting Instruments for Safety Duties

Switches versus transmitters
Failure modes of sensors and actuators
Minimising dangerous failures
Qualification by design and certification
Qualification by prior use
Smart instruments and diagnostic

MODULE 8: Reliability Analysis

Purposes of reliability calculations
SIS failure modes, safe and dangerous
Formulae and how to use them
Worked examples
Obtaining reliability data and the
Review of software tools

MODULE 9: Safety-certified PLCs

Logic solvers, old and new
Development of safety PLCs
Hardware and software features
Review of industry types
Communications and networking
Integrated basic and safety control

MODULE 10: Application Software for Safety Duties

The problem with software
IEC software life cycle models
Application software steps
Factory acceptance testing
Quality assurance and certification

MODULE 11: Documentation and Management

Documents needed for the SIS project
Verification and validation
Management of change

MODULE 12: Diagnostics and Proof Testing

Proof testing and why it is needed
Testing of sensors
Partial closure testing of valves
Optimising the proof test interval

NB: The course description of all EIT "Certificate" courses has been changed to "Professional Certificate of Competency". Some course brochures are not yet updated. The actual certificate received by successful students will include the new title.

Learning and Teaching

Benefits of Online Learning to Students

  • Cost effective: no travel or accommodation necessary
  • Interactive: live, interactive sessions let you communicate with your instructor and fellow students
  • Flexible: short interactive sessions over the Internet which you can attend from your home or office. Learn while you earn!
  • Practical: perform exercises by remotely accessing our labs and simulation software
  • Expert instructors: instructors have extensive industry experience; they are not just 'academics'
  • No geographical limits: learn from any location, all you need is an Internet connection
  • Constant support: from your instructor(s) and a dedicated Learning Support Officer for the complete duration of the course
  • International insight: interact and network with participants from around the globe and gain valuable insight into international practice 

Benefits of Online Learning to Employers

  • Lower training costs: no travel or accommodation necessary
  • Less downtime: short webinars (60-90 minutes) and flexible training methods means less time away from work
  • Retain employees: keep staff who may be considering a qualification as full time study
  • Increase efficiency: improve your engineering or technical employees’ skills and knowledge
  • International insight: students will have access to internationally based professional instructors and students


How Does it Work?

EIT Online Learning courses involve a combination of live, interactive sessions over the Internet with a professional instructor, set readings, and assignments. The courses include simulation software and remote laboratory applications to let you put theory to practice, and provide you with constant support from a dedicated Learning Support Officer.

Practical Exercises and Remote Laboratories

As part of the groundbreaking new way of teaching, our online engineering courses use a series of remote laboratories (labs) and simulation software, to facilitate your learning and to test the knowledge you gain during your course. These involve complete working labs set up at various locations of the world into which you will be able to log to and proceed through the various practical sessions.

These will be supplemented by simulation software, running either remotely or on your computer, to ensure you gain the requisite hands-on experience. No one can learn much solely from lectures, the labs and simulation software are designed to increase the absorption of the materials and to give you a practical orientation of the learning experience. All this will give you a solid, practical exposure to the key principles covered and will ensure that you obtain maximum benefit from your course.




To access the detailed program brochure, please complete this form.


The Engineering Institute of Technology (EIT) is dedicated to ensuring our students receive a world-class education and gain skills they can immediately implement in the workplace upon graduation. Our staff members uphold our ethos of honesty and integrity, and we stand by our word because it is our bond. Our students are also expected to carry this attitude throughout their time at our institute, and into their careers.

Endorsed by ISA

School of Industrial Automation