This is the next in a series of blogs and papers on the benefits of cyber certification. Certification provides you with the opportunity to work with an experienced cyber team here at exida, and the…
This is the next in a series of blogs and papers on the benefits of cyber certification. Certification provides you with the opportunity to work with an experienced cyber team here at exida, and the…
Both Process Safety Analysis (PHA) and Layer of Protection Analysis (LOPA) occur in the early stage of the Functional Safety Lifecycle, detailed in both IEC 61511 and IEC 61508.…
One of the more important tasks in the alarm management lifecycle is auditing of the alarm system configuration. Auditing preserves your investment in rationalization, checks for changes that bypassed the MOC process, and helps…
Experience is a good teacher. But how do you get the experience?
Formal classroom or online training is often available for more general skills, but on-the-job training usually provides a more in-depth path to…
On July 27, the US Chemical Safety Board (CSB) issued a Factual Update on their investigation into a release of water containing a toxic gas (hydrogen sulfide) and subsequent fatal injuries sustained at the…
I can't begin to tell you how many of our customers share with us how lucky they have been to be incident-free at their plant.
Or, because they have not had an incident in…
The Greek symbol λS represents safe or spurious failure rates in functional safety expressed in the unit of measurement of FITs which can be determined through FMEDAs. (FITs (λ) are failures per billion…
Most end users I teach in our FSE100 class are not really aware of or fully, understand when we talk about failure rates. For example, what’s a FIT mean? For those end users more…
This is the first in a series of blogs and papers on the benefits of cyber certification. Certification provides you with the opportunity to work with an experienced cyber team here at exida,.…
“…there is a belief amongst many engineers and managers that human error is both inevitable and unpredictable.
However, human error is inevitable only if people are placed in situations that emphasize human…
In recent discussions with several engineering and integrators of Safety Instrumented Systems (SIS), it’s become very clear to me that the majority I have spoken to, don’t have any form of Functional…
When we first invented the FMEDA technique in the late 1980s the biggest problem was the component failure rate and failure mode data. Still is. I picked up a well-known standard for component failure…
The Greek symbol λDD is the detectable dangerous failure rate in functional safety expressed in the unit of measurement of FITs which can be determined through FMEDAs. (FITs (λ) are failures per billion…
I just read a great article in the May issue of IEEE Spectrum magazine called “Managing Risk and Responsibility During a Crisis.” The author Robert N. Charette says “If the American people desire…
When it comes to IEC61511 and the selection of equipment for use within Safety Instrumented Systems (SIS) and Safety Instrumented Functions (SIF), there are only two methods that can be used to…