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Blog Entry: High Demand Diagnostic Credit?
The IEC 61508 standard states that automatic diagnostics can only lower the dangerous undetected failure rate if those diagnostics execute 100 times faster than the expected demand rate. That requirement has always seemed excessive to many of us here at exida. As an accredited Certification Body we must enforce that…
Recorded Webinars: Industrial Automated Control System 〈IACS〉 Cybersecurity Program Management (IEC 62443)
The presence of threats, and the success of attacks has been felt by virtually every individual and organization around the world. Protecting assets must be a well-organized, wide ranging effort that involves everyone who has assets to protect. There are organizational conflicts to understand, policies to create, and specific security activities to coordinate. This webinar discusses key aspects of a Industrial Automated Control System (IACS) Cybersecurity Program, provides concrete recommendations for getting started, and references that provide additional insight.
Blog Entry: Reducing Project Lifecycle Cost with exSILentia®
The international functional safety standard IEC 61511 provides the safety lifecycle as a steadfast guideline to assess and mitigate risk for manufacturing processes including refineries, chemical, petrochemical, pulp and paper, and power plants. To achieve a functionally safe system, it is essential to follow each requirement in the standard. However,…
News Item: exida’s Dr. William Goble Presenting Paper at RAMS 2017
exida Founder Dr. William Goble will be presenting a paper at the 63rd Annual Reliability and Maintainability Symposium (RAMS) Conference in Orlando, FL on January 23rd, 2017. The paper is entitled “PROPERLY CREDITING DIAGNOSTICS IN SAFETY INSTRUMENTED FUNCTIONS FOR HIGH DEMAND PROCESSES”. This paper proposes that the 100X requirement used…
Recorded Webinars: Applying the Principles of the Functional Safety Lifecycle
Analyzing High Pressure in a Batch Chemical Reactor
The functional safety lifecycle provides a method to analyze, implement, and maintain a safety instrumented system, from project scope definition to decommission. Using a batch chemical reactor example, this webinar will walk through each step of the lifecycle. A high pressure deviation will be used as the starting point in the process hazard analysis. The resulting hazard scenario is subsequently analyzed in a layer of protection analysis. Requirements for a SIF are described in the safety requirements specification. After conceptual design is created SIL verification is performed, and the resulting SIF design is converted into an application program. Finally, life events including proof testing, maintenance activities and process demands are recording during operation.
Blog Entry: IF COMPUTERS RULED THE WORLD…
What if the best minds of the world got together to generate the optimum requirements specification for human co-habitation? And built it into one large decision matrix to run on the best super-computers? Decisions would be made solely on objective criteria; no mental arbitration, no skipping steps, no checking with…
Rosemount Tank Radar (an Emerson company) - 5408 Level Transmitter (4-20 mA HART)
IEC 61508 in the Safety Automation Equipment List
News Item: exida Exhibiting at Texas A&M - 72nd Instrumentation and Automation Symposium
exida will be exhibiting and presenting a workshop at this year's Texas A&M - 72nd Instrumentation and Automation Symposium in College Station, TX on January 24-26, 2017. exida's Senior Cybersecurity Engineer Dave Johnson will be presenting a workshop entitled ” Connecting Equipment and Zone/Conduit Security Levels” on Wednesday the 25th…
News Item: New White Paper - Reducing Project Lifecycle Cost with exSILentia®
The international functional safety standard IEC 61511 provides the safety lifecycle as a steadfast guideline to assess and mitigate risk for manufacturing processes including refineries, chemical, petrochemical, pulp and paper, and power plants. To achieve a functionally safe system, it is essential to follow each requirement in the standard. However,…
White Paper: Reducing Project Lifecycle Cost with exSILentia®
The international functional safety standard IEC 61511 provides the safety lifecycle as a steadfast guideline to assess and mitigate risk for manufacturing processes including refineries, chemical, petrochemical, pulp and paper, and power plants. To achieve a functionally safe system, it is essential to follow each requirement in the standard. However,…
Recorded Webinars: It’s Time!! Useful Life, MTTF, and Mission Time
There are several time parameters that are used in functional safety. Some of these parameters seem counterintuitive, e.g. a device with an average failure rate of 100 years but it fails after 10 years. How do these numbers align? Terms like useful life and Mean Time To Failure seem to contradict each other. In SIL verification calculations Mission Time is used, how does this fit in? This webinar will talk about the different time parameters and how they are used in functional safety. It will provide a basic understanding of the time parameters.
Blog Entry: Conceptual Design and SIL Verification’s Ultimate Resource
I was talking to a customer the other day regarding failure rate data and I brought up our Safety Equipment Reliability Handbook (SERH): 4th Edition . Through the years, along with our comprehensive safety lifecycle tool exSILentia , the book set has become one of exida's flagship products. If you…
MOGAS Industries - T-Series Trunnion Ball Valve
IEC 61508 in the Safety Automation Equipment List
MOGAS Industries - C-Series Floating Ball Valve
IEC 61508 in the Safety Automation Equipment List
Flowserve Corporation - Valtek Multi-Z Control Valves
IEC 61508 in the Safety Automation Equipment List
Flowserve Corporation - VL, VL-C, VL-ES, and VL-UHC Series
IEC 61508 in the Safety Automation Equipment List
Flowserve Corporation - Valtek TX3 / Durco TX3 - Triple Offset Butterfly Valve
IEC 61508 in the Safety Automation Equipment List
News Item: exida is Pleased to Announce the Winners of the 2016 Safety Awards
exida, the global leader in functional safety and cybersecurity certification for the process industries, is pleased to announce the winners of their 2016 Safety Awards. These products offer unique features that help safety function designers improve safety,” said exida Partner Chris O'Brien. “The designs itself have great diagnostics and the…
Recorded Webinars: Alarm Classification – Not all alarms are created equal!
Alarm classification is a process for grouping alarms that have a common set of requirements for areas like training, maintenance, testing, management of change, and reporting. It could, for example be used to identify Safety (Related) alarms that are used for functional safety purposes. Classification is also a required output of alarm rationalization per the ISA-18.2 and IEC 62682 alarm management standards. Despite this, many alarm management projects ignore classification or misinterpret what it is to be used for (it’s not the same as alarm priority or alarm type). Additionally the usage and benefit of Highly Managed Alarms (HMA) is not well understood.
This presentation will review the purpose of alarm classification, how to define alarm classes, and how to assign alarms to classes. It will also discuss the origin and purpose of Highly Managed Alarms, and their associated requirements. Lastly it will present application examples of classification (including “Safety Alarms”) and the benefits that can be realized by end users.
Blog Entry: The Importance of Process Safety to the next Generation of Chemical Engineers
Significant progress in process safety has been made by many companies and engineers around the globe. This progress is often overshadowed when a process safety accident hits the news. In December of 2007, a runaway reaction led to an explosion at the T2 Laboratories in Jacksonville, FL. The blast killed…