exida explains Blog

The Crossroads of Alarm Management and Process Safety

The Crossroads of Alarm Management and Process Safety

Introduction to ICS Security - Pt. 2 - IT versus ICS Security

Introduction to ICS Security - Pt. 2 - IT versus ICS Security

Over the next couple of blogs, I plan to map out the importance of ICS cybersecurity and how it applies to your work environment.  I'll also explain some of our services so that you can see what might pertain to you. For part 1, I started from…

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How Secure Is Your Safety Instrumented System (SIS)?

How Secure Is Your Safety Instrumented System (SIS)?

As the cybersecurity threats in the industrial world continue to rise, the automation world continues to grapple with how to address these issues.  As such, the newly released IEC61511-1: 2016 edition has included a new clause to address this (Clause 8.2.4).  In essence, End Users have to carry out…

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FMEDA Predictions

FMEDA Predictions

The FMEDA technique is performed on a specific device (e.g., ball valve, pressure transmitter, temperature sensor, electronic module, etc.) specified down to the manufacturer and series/model. Based on the specifics of the design, the parts used to execute the design, the design margins, any automatic diagnostics, the…

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Introduction to ICS Security - Pt. 1 - What is ICS Security and Why it Is Important

Introduction to ICS Security - Pt. 1 - What is ICS Security and Why it Is Important

Over the next couple of blogs, I plan to map out the importance of ICS Security and how it applies to your work environment.  I'll also explain some of our services so that you can see what might pertain to you.

For part 1, I will start from the…

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Who’s Driving Your Process?

Who’s Driving Your Process?

When I start working with new customers for IEC 61508 certification projects, it’s easy to understand why they might not have a compliant development process for functional safety:  they’ve never done it before!  They understand their market and their products, but they need help to understand the…

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“Never tell me the odds”

“Never tell me the odds”

-Han Solo, Star Wars, Episode V: The Empire Strikes Back, 1980

I have enjoyed watching and reading about the actions of the fictional Star Wars character Han Solo over the years.  I recall hearing the above quotation more than once.  And as much as I enjoyed watching this character,…

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Functional Safety Evolution

Functional Safety Evolution

Protection systems have been around for a long time, going back to having a canary in the mine, and throughout the Industrial Revolution; so they are not a new thing.  Various stakeholders were involved in business enterprises: owners, suppliers, consumers, community members, and workers. Usually the business owners held…

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PRODUCT SPOTLIGHT: Practical SIL Target Selection - Risk Analysis per the IEC 61511 Safety Lifecycle

Network Segmentation and the Fragile PLC

Network Segmentation and the Fragile PLC

One of the best parts of my job is I get to walk around and look over what has been implemented in the way of physical and cyber security. Most of the time I am very impressed by what has been done as more and more companies are realizing…

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The Meaning of Tool Integration

The Meaning of Tool Integration

What does tool integration mean? One can argue it is the ability for different tools to talk to each other and exchange data. Though this may be true from a typical software tool integration, a common definition of integrate, i.e. to bring together or incorporate (parts) into a whole…

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Let’s Get Personal… with Risk

Let’s Get Personal… with Risk

We recognize that risk is inherent in many aspects of our lives.  And most of us will do what is prudent to avoid unreasonable risk in our activities, such that we are left with some level of tolerable risk.  It may be safer to stay home and not travel…

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Are All Field Devices Type A?

Are All Field Devices Type A?

I was told by an end user engineer that he considers all field devices to be simple Type A devices.  In IEC 61508, Type A is defined as a device with well-defined failure modes, well known failure rates, and behavior under fault conditions that can be completely determined.  Type…

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PRODUCT SPOTLIGHT: exSILentia® – PHA / PHAx™

Each month at exida, we strive to spotlight one of our products that makes the job easier for today's industry professional.  In this blog, I wanted to talk about the PHAx module as part of our exSIlentia Safety Lifecycle Suite.

Process Hazards Analysis (PHA)

Process…

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Are You Ready For What’s Coming?

Are You Ready For What’s Coming?

If you’re like me then you’ve been waiting for the new draft of IEC 61511 to be officially issued since its release has been delayed for some time.  However, a draft has been released and can help in preparing end users for what’s to come.  The question…

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