Oftentimes when this comes up during class it’s clear that there’s a misunderstanding as to how these three variables can impact the PFDavg calculations. Mission Time is defined as the period of time over…
exida explains Blog
How Does Mission Time, Proof Test Interval and Proof Test Coverage Impact PFDavg?
From exSILentia® to SILstat™ – A Seamless Transition
Looking for a way to manage and maintain your operation and maintenance data, but don’t know where to start? Are you already using exSILentia® for your safety lifecycle task needs?
If so, SILstat™ offers…
Easy to Navigate – The Intuitive Data Structure of SILstat™
While using different safety system management platforms, it is essential to keep system and device data properly arranged between platforms to ensure efficient data management. This can be difficult, but not with SILstat™.…
How Does A SIF Achieve its SIL Target?
This is a question I’ve been asked many times, with some stating that as long as the PFDavg (or PFH) meets the target SIL then that’s fine. Whereas this statement is partially true, it…
The Future of Safety Management: Embracing Digital O&M Data
In today’s world, having your Operation and Maintenance (O&M) data in a digital format allows for increased accessibility and traceability. Using more traditional recordings, such as on paper or with various Excel notebooks, increases…
How IEC 62443 Can Help Achieve Compliance with the EU Cyber Resilience Act (CRA)
Introduction:
The European Union’s Cyber Resilience Act (CRA) is set to introduce mandatory cybersecurity requirements for “products with digital elements”, including those used in Industrial Control Systems (ICS) and Operational Technology (OT) environments. This…
Más allá de la baja demanda: Entendiendo el verdadero modo de operación de tu SIF (Beyond Low Demand: Understanding Your SIF’s True Mode of Operation)
ESPANOL
¿Se calcula el SIL de una SIF de Demanda Baja igual que el de una SIF de Demanda Alta o Continua?
Es muy importante identificar el modo de operación que es asignado a…
Understanding the EU Cyber Resilience Act (CRA)
Introduction:
The European Union Cyber Resilience Act (CRA) is a landmark regulation designed to enhance cybersecurity across hardware and software with digital elements that are offered for sale within the EU. As cyber threats…
What Does IEC 61511 Mean by Competency?
When the latest edition of IEC61511 was published in 2016, one of the key changes was the emphasis on competency and some further guidance on what this means. The relevant clauses in the IEC61511:2016…
A Component Reliability Data Source Must Include Useful Life
In exida’s Component Reliability Database (CRD), every component includes a Useful Life expressed in years and/or cycles.
Understanding Useful Life
This post, drawing from exida's whitepaper [1] on how environmental factors impact component…
Stress vs. Strength: The Foundation of Component Reliability in FMEDA
The So What:
Your product's safety and reliability depend on the constant battle between component stress and strength throughout its useful lifetime. This…
Introduction to SILstat™
Earlier this year, exida announced major enhancements to the SILstat™ product.
SILstat completes the Safety Lifecycle by providing users with a tool to manage and maintain their operation and maintenance data…
What is Prior Use Justification & How To Achieve it?
This is a question I have often been asked in the past. Most people I have spoken with don’t have a good appreciation of what this means and the purpose. From the
The Impact of SSI Selections in exSILentia® SILver™
An exSILentia user just reached out to me inquiring how their SIL verification results changed with changing Site Safety Index (SSI), even though they did not include the…
Functional Safety in Mining: Does it Apply?
This is an important question. Mining today is a lot more modernized and automated than in the past, yet there are still accidents occurring. The Impala hoist accident in South Africa in November of…