exida explains Blog

What’s the Risk?

As safety professionals, it is our duty to attempt to educate and explain to the public.  Perhaps the biggest challenge is to explain the concept of risk.  Many times after an accident we have heard a politician say something like “We will do whatever it takes to make sure…

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A look into the control room of the Fukushima Dai-Ichi Unit 2 reactor!

I came across an interesting blog post the other day…

Talk about operating blind.  A great picture shows the status of the control room in the Fukushima Dai-Ichi Unit 2 reactor…Nothing is working (besides the lights)!

All of the computer monitors are blank. The clock…

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Rationalize Your Alarm Management Problems Away

Alarm Overload…Nuisance Alarms…Alarm Floods…Incorrectly Prioritized Alarms…. These alarm management problems are all too common in the modern Distributed Control System (DCS).

Why is this?  In the “olden” days (read panel boards and alarm lightboxes), there was considerable thought put into what alarms were necessary because there was limited real…

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The Real Impact of Stuxnet

Stuxnet has, rightly, generated a significant amount of discussion and concern with the industrial automation community.  Fortunately, unless you operate a uranium enrichment facility using Siemens S7 PLC’s and some very specific variable frequency drives (VFDs) you probably haven’t been directly impacted by the Stuxnet…

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  • by Dr. William Goble, CFSE
  • Tuesday, March 08, 2011
  • Certification

Counterfeit Certificate!

I am told that plagiarism is a compliment. Since exida is the leading company for IEC 61508 certifications I suppose it was bound to happen. Well it did. exida got an email from our sales representative in China. He asked why this certificate was not listed on the…

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  • by Dr. William Goble, CFSE
  • Friday, March 04, 2011
  • Certification

Tales from the Certification Wars - Who certifies the certification agency?

I have often heard the question “Who says they can issue a certification?”  This is often accompanied by “Why can’t I certify my own product?”  “Who knows our design better than we do?” Good questions.

The IEC 61508 standard does not require certified products for Functional Safety. …

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