Kenexis - Functional Safety Podcast

In this episode, we dive deeper into the requirements forstarting up and re-starting Safety Instrumented Systems (SIS). Wasn’t this already covered in bullet point 16? Join us as we revisit Clause 10.3.2 to clarify any confusion and unpack what’s really required when bringing SIS back online.

“Fail safe” is a common term—and it sounds great.  Who wouldn’t want things to fail safe?  But here’s the thing: can we ever really guarantee that? Join us as we unpack what “fail safe” really means, why it’s not always as foolproof as it sounds, and what that means in the real world.

When a shutoff valve is told to close, the movement is just the beginning. Behind that simple action lies a complex web of consideration. In today’s episode, we’re diving into what really happens when a valve is commanded to shut, and why there’s so much more to it than meets the eye.

Process Safety Time is one of the most complex andchallenging aspects of the 61511 standard, which is why it will be shifting to MERT.

In this episode, CEO of Kenexis Ed Marszal, continues his discussion of Safety Requirements Specifications as found in clause 10.3.2 of the IEC61511 standard.

In this episode, we’re diving into the concept of Safety Requirements Specification. What exactly does it mean, and why is it more complex than you might think? Stay tuned as we break it down and explore its importance in functional safety.

In this episode, we explore an important question in the world of functional safety: Can a basic process control system be considered a valid protection layer? We’ll dive into the circumstances under which it may be appropriate to give it credit, and discuss the factors that determine how much credit should be assigned. Stay tuned as we unpack this critical topic and provide insights to help you n...

If your risk analysis has led you to conclude that you need a SIL 4, that’s a red flag. It’s likely time to go back to the drawing board and reassess. In today’s episode, we’ll explore why this might be the case and how to approach functional safety to avoid overestimating risk levels.

Clause 8 and Clause 9 in the IEC 61511 standard are both required to obtain your SIL targets.

In our latest podcast episode, we dive into how the basic process control system introduces complexities into risk analysis, starting right from the hazard and risk assessment stage. Tune in for insights into navigating these complexities.

In this episode, we kick off our exploration of the process safety lifecycle by diving into hazard and risk analysis. After some thoughtful pre-discussion, we lay the groundwork for understanding the essential components of safety management in industrial settings.  Join us as we unpack the critical steps involved in identifying and assessing risks to ensure safer operations.

Validation is a final physical test on the completed system, but verification is the step by step back-checking of each individual activity.

The SIS safety life cycle outlines all the activities involved in designing safety instrumented systems to achieve functional safety, as detailed in Clause 6.

Functional safety assessments and functional safety audits serve distinct purposes. Audits evaluate the ongoing operations of a facility across all areas, while functional safety assessments focus specifically on a single project.

Many people misunderstand the fundamental concepts of assessment and auditing. It's not about verifying whether the work was done correctly; it's about ensuring that the work was carried out according to the plan or the way you said it would be done.

Having just "a plan" for functional safety isn't enough; you need to implement and monitor every step to ensure it gets done. In this episode, Ed Marszal, President of Kenexis, discusses Clause 5.2.5 of the IEC 61511 standard.

Management of functional safety is the key to a good safety instrumented system. In this episode, Ed Marszal, President of Kenexis, discusses Clause 5.1 through 5.2.4 of the IEC 61511 standard.

In this episode, Edward Marszal, President of Kenexis finishes his discussion of the definitions section of the IEC 61511 standard.

How many definitions does it take to define what a safety instrumented function is?  Surprisingly, it’s more than you would think.  In this episode, Ed Marszal, President of Kenexis, discusses Clause 3.2.65 through 3.2.76 of the IEC 61511 standard.

Safety is the freedom from risk that is not tolerable, but what is risk and how do you know it is tolerable?

In this episode, Ed Marszal, President of Kenexis, discusses Clause 3.2.43 through 3.2.56 of the IEC 61511 standard.

In this episode, Ed Marszal, President of Kenexis, discusses Clause 3.2.35 through 3.2.42 of the IEC 61511 standard.

In this episode, Ed Marszal, President of Kenexis, discusses Clause 3.2.17 through 3.2.34 of the IEC 61511 standard.

In this episode, Ed Marszal, President of Kenexis, discusses Clause 3.2.6 through 3.2.16 of the IEC 61511 standard.

In this episode, Ed Marszal, President of Kenexis, discusses Clause 2 through 3.2.5 of the IEC 61511 standard.