exida explains Blog

Back to Basics 05 – What is a Safety Function?

Back to Basics 05 – What is a Safety Function?

A Safety Function is the action of a collection of equipment to implement automatic mitigation of a particular hazard. It is the job of the Safety Instrumented Function (SIF).

Some examples of common Safety Functions: 

  • Car brake stop
  • ESD valve – Shutdown process
  • Sprinkler system 
  • High…

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Don’t Let Your Safe Operating Limits Leave You S-O-L (Out of Luck)

Don’t Let Your Safe Operating Limits Leave You S-O-L (Out of Luck)

As the name implies, the purpose of Safe Operating Limits (SOL) is to define the limits beyond which a process will not intentionally be operated and at which troubleshooting ceases, replaced by pre-determined actions to bring the process to a safe state. Pretty important information. I am sure this is…

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Back to Basics 04 - Safety Instrumented System (SIS)

Back to Basics 04 - Safety Instrumented System (SIS)

In the following series of blogs, we'll go back to basics and run down everything you need to know to get started in functional safety.  We'll start with some more general terms and descriptions and make our way to more advanced material.

4. SIS

A SIS – Safety Instrumented…

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CACE Specialties, Now That’s New!

CACE Specialties, Now That’s New!

Cyberattacks have become the new norm for industrial control systems. A recent study found that 54% (more than half) of companies surveyed had experienced a cyber-attack on their Industrial control system within the last two years[1]. 

The need for well-trained, competent individuals to address cybersecurity for industrial control systems…

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Back to Basics 03 - Safety Instrumented Function (SIF)

Back to Basics 03 - Safety Instrumented Function (SIF)

In the following series of blogs, we'll go back to basics and run down everything you need to know to get started in functional safety.  We'll start with some more general terms and descriptions and make our way to more advanced material.

3. SIF

SIF – Safety Instrumented Function…

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Back to Basics 02 - Safety Integrity Level (SIL)

Back to Basics 02 - Safety Integrity Level (SIL)

In the following series of blogs, we'll go back to basics and run down everything you need to know to get started in functional safety.  We'll start with some more general terms and descriptions and make our way to more advanced material.

2. Safety Integrity Level (SIL)

Safety…
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China Probes Factory as Death Toll Rises

China Probes Factory as Death Toll Rises

Walking into work last week and seeing this article reassured me why I work at exida.  Incidents, like this recent one at a pesticide plant in eastern China, are why we push every day to help educate people about the importance of functional safety.

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Back to Basics 01 - Functional Safety

Back to Basics 01 - Functional Safety

In the following series of blogs, we'll go back to basics and run down everything you need to know to get started in functional safety.  We'll start with some more general terms and descriptions and make our way to more advanced material.

1. Functional Safety

Functional safety means the…

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exida Failure Rates are Higher Than TÜV Italia. Who Is Right?
  • by Dr. William Goble, CFSE
  • Tuesday, March 05, 2019
  • Certification

exida Failure Rates are Higher Than TÜV Italia. Who Is Right?

An owner-operator engineer compared the failure rates for two similar products from an exida certificate with those from a TÜV Italia certificate.  exida numbers were an order of magnitude higher.  Who is right?  

There are some relevant fundamental facts in the field of Reliability Engineering:

  1. Failure rate prediction methods depend…

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Where Do You Stand with Functional Safety?
  • by Loren Stewart, CFSE
  • Thursday, February 21, 2019

Where Do You Stand with Functional Safety?

This year, make your New Year’s resolution safety! 

Take a moment this year and think about where you currently stand with functional safety. And actually, be honest with yourself. REALLY honest. Do you proof test on time, or does it sometimes get pushed out? Do you pull your devices…

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What can OT learn from IT data breaches?

What can OT learn from IT data breaches?

Does your organization even have a CISO position?

Cybersecurity continues to be an overlooked aspect in organizations—including those owning ICS (Industrial Control System) production facilities. Anyone following the news has most assuredly heard of the plethora of massive data breaches that organizations have endured over the last…

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Setting Goals for 2019: Are You Thinking About Functional Safety?

Setting Goals for 2019: Are You Thinking About Functional Safety?

When I went to set my goals for 2019, I set both personal and professional goals. One of my professional goals is to clean off my desk, but another is to get more people to think about functional safety before an accident occurs, instead of when they are normally…

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Who gives exida the authority to publish SILSafeData?
  • by Dr. William Goble, CFSE
  • Thursday, January 24, 2019
  • Certification

Who gives exida the authority to publish SILSafeData?

SILSafe Data

SILSafeData contains upper and lower bound ranges of dangerous undetected failure rates for many automation devices. It was created by exida using statistical analysis of FMEDA failure rate predictions. The component database used in the FMEDAx tool is based on…

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Cyberattacks Succeed Where Humans and Systems Are Weak

Cyberattacks Succeed Where Humans and Systems Are Weak

Have you noticed that over the last several years, cybersecurity seems to be “trending?” 

Companies of all sizes are starting to learn how to prevent, or at least minimize, these attacks. They hire third-party experts and attend trainings to learn more about the human and system weaknesses that are…

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Does Your ICS Service Provider Need Training?

Does Your ICS Service Provider Need Training?

Today’s owner operators and lease operators of industrial production facilities frequently employ service providers for projects and upgrades, as well as operations and maintenance. These contractors often travel to many sites, carry their own copies of source code and files, and use multiple PCs with multiple engineering tools for…

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