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Recorded Webinars: Should my Initial Cybersecurity Risk Assessment Consider Non-hackable Protections?
The initial cybersecurity risk assessment (or high-level risk assessment as it was previously called) is an important step in the cybersecurity lifecycle. It is at this point that the basis for network segmentation and creating zones and conduits for an industrial control system (ICS) starts. At this stage the “worst case unmitigated cyber security risk” for any scenario is documented to allow assets to be grouped into areas of similar risks. Several methodologies have been adopted to complete this task, and two of the most common are asset-based and PHA-based, each with a slightly different focus and approach. One common question that we receive when conducting initial risk assessments, is if any protections can be credited. At this stage no cybersecurity protections can be credited, but what about non-hackable safety protections? In this webinar we will review similarities and differences between these two approaches to initial risk assessment and answer the question of whether or not we can look at non-hackable protections during the initial risk assessment.
White Paper: Improving Mechanical Component Reliability with Partial Valve Stroke Testing
This paper describes how failure rates of mechanical devices will change depending on how frequently they move in operation. The phenomenon involved has been defined as Static Friction (Stiction). Stiction is described along with its impact and the primary method of prevention, Partial Valve Stroke Testing (PVST).
Blog Entry: FMEDA Webinar Series Playlist Now Available
As the inventor of the FMEDA process, our experts planned a series of eight webinars introducing FMEDA concepts and methods available in the Youtube playlist below. The series starts with an introduction for the beginner, quickly moves to medium level topics, and finally, at the end, covers the more complicated…
News Item: exida Opens New Office in Houston, TX
exida, the global leader in functional safety & cybersecurity for the process industries, is pleased to announce the opening of their new office in the Energy Corridor district of Houston. “As part of our commitment to improve our service to the existing customer base in the Gulf Coast region, exida…
Recorded Webinars: Using an FMEDA Tool - FMEDAx
As the inventor of the FMEDA process, exida created FMEDA Tools from our early years in order to improve the accuracy of the FMEDA work we do as well as reducing the time required. FMEDAx is the latest generation of our family of FMEDA tools. In this webinar we provide an introduction to the tool, explain key features, and demonstrate the most important of any FMEDA, the Component Reliability Database (CRD). This webinar is important for anyone performing FMEDA analysis and those contracting FMEDA analysis.
Recorded Webinars: Validating the results of an FMEDA
The FMEDA process is used to obtain several important reliability and safety metrics for components, devices, and systems. How does one validate these important metrics? Has the analysis generated realistic, credible results? This webinar discusses several potential validation methods including field failure comparisons, using the SIL SafeData chart, and comparison to existing device performance. This webinar is important for anyone performing FMEDA analysis and those contracting FMEDA analysis.
News Item: Rexa Receives 61508 Functional Safety Certification for X3 Accumulator System
Congrats to Rexa. exida recently issued an IEC 61508 functional safety certification for their X3 Accumulator System. The certificate and assessment report can be found on the exida SAEL .
Recorded Webinars: FMEDA Tips and Techniques
The FMEDA process analyzes blocks of electronic or mechanical device designs one component at a time. This goes quickly when the block is a series system. But what about redundancy? What about unclear failure mode impact? How does one deal with application dependent failure modes? These are a few of the issues that may be encountered during an FMEDA. This webinar discusses the abnormal and unclear situations that may occur along with the interpretations and solutions used at exida. This webinar is important for anyone performing FMEDA analysis and those contracting FMEDA analysis.
RG Group - HPU and Cylinder Systems
IEC 61508 in the Safety Automation Equipment List
News Item: Emerson Automation Receives 61508 Functional Safety Certification for Valve Assembly
Congrats to Emerson Automation Solutions. exida recently issued an IEC 61508 functional safety certification for their Fisher Digital Isolation DSV1000 SIS Solution. The certificate and assessment report can be found on the exida SAEL here.
Recorded Webinars: Component Data Requirements for an FMEDA
The FMEDA process is a bottom-up approach where component failure rates and failure modes are mapped into device level failure modes resulting in a potentially good prediction of the device failure rate for each device failure mode. An FMEDA can also potentially predict the Useful Life of a device. However, no FMEDA can produce realistic metrics without a complete and strong component reliability database. This webinar discusses the key attributes of a component reliability database and shows examples of several component metrics. This webinar is important for anyone performing FMEDA analysis and those contracting FMEDA analysis.
Recorded Webinars: Predicting “Proof Test Coverage” with an FMEDA
In Functional Safety (FuSa), one critical performance metric, called PFDavg (the average probability that a safety protection function will not work when needed), is calculated. In Safety Functions where a “Proof Test” can be done, the effectiveness of that Proof Test is an important input to the PFDavg calculation. Many simply say 100% yet many field failure reports will dispute that estimate. Reality is that a Proof Test is not perfect and has an effectiveness of less, sometimes much less, than 100%. An FMEDA can be used to predict the diagnostic coverage of any Proof Test. It provides a relatively accurate prediction of this important metric. This webinar explains the method used in FMEDA to predict Proof Test Coverage including an example calculation. This webinar is for anyone performing an FMEDA.
INEOS - Functional Safety Management System
IEC 61511 in the Safety Automation Equipment List
News Item: ARM China Receives ISO 26262 Certification for Functional Safety Management Process
Congrats to Arm China. exida recently issued an ISO 26262 functional safety certification for their Functional Safety Management Process for Digital IP Hardware Development. The certificate and assessment report can be found on the exida SAEL here.
Fike Corporation - Fike Series Flame Detectors
IEC 61508 in the Safety Automation Equipment List
Recorded Webinars: Predicting “Useful Life” with an FMEDA
Failure rate data for many different devices has shown that a device failure rate changes during the operating time interval. The failure rate would follow what has become known as the “Bathtub Curve.” Failure rates can be approximated as a constant value during the flat bottom of the Bathtub Curve for a time period known as Useful Life. At some point in time, the failure rate increases, often rapidly. This marks the end of the Useful Life time period. In Functional Safety (FuSa), one critical performance metric, called PFDavg (the average probability that a safety protection function will not work when needed) is calculated. Failure rates are an input to this calculation and are only valid during the Useful Life. Therefore, Useful Life is required for FuSa. An FMEDA can be used to predict this important metric. This webinar explains the Reliability Engineering background and the method used in FMEDA.
Recorded Webinars: Using a Spreadsheet to do FMEDA
An FMEDA is a failure metric analysis method used primarily to predict failure rates of embedded controllers, sensors, and final elements. When the FMEDA method was invented in the late 1980s, a spreadsheet was the obvious choice for implementation. Even with the proliferation of bespoke FMEDA tools, a spreadsheet can still be used today, especially for simple mechanical and electrical devices. This webinar shows examples of spreadsheets in use, explains how to set up the calculations used in the spreadsheet and gives a detailed example of an FMEDA done using a spreadsheet.
News Item: exida Sponsored Pennridge Highschool STEM Team Finishes 3rd in Challenge
The Pennridge Highschool STEM Team, the self-named Pennridge Nerd Squad, finished 3rd in the Pennsylvania 2023 Governor’s STEM challenge with their “Thinking Bee” project. A project focusing on the decline in the natural pollination across the US and Pennsylvania. The team developed a prototype drone, smartly named Adam Flayman as…
SIS-Tech Applications - Diamond SIS Logic Solver
IEC 61508 in the Safety Automation Equipment List
Emerson Automation Solutions - Fisher Digital Isolation DSV1000 SIS Solution
IEC 61508 in the Safety Automation Equipment List