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Training Course: IEC 62443 Cybersecurity for Industrial Automation Control Systems (IACS) for Employees & Contractors
This course addresses the quality and understanding employees and contractors need to have on the topic of Cyber Security for the IACS space. The access granted to IACS networks is often the same for employees and contractors. The seriousness of access must be established with a joint work process similar…
White Paper: Plug the Holes in the Swiss Cheese Model
Stop using operator error as an excuse. Apply human factors considerations to improve your alarm system and help operators respond to alarms effectively. Alarms play a significant role in maintaining plant safety by notifying operators of an equipment malfunction, process deviation, or abnormal conditions that requires a timely response .…
Blog Entry: Human Factors in Alarm Management
Question: Which one of these layers of protection (operator response to alarm, relief valves, dikes, and safety instrumented systems) is not like the other? Answer: Operator response to alarm (Operator Intervention), because of the “Human” factor. It is very difficult to calculate the probability of failure on demand (or the…
News Item: New exida Academy Online, Self-Paced Functional Safety Courses
exida Academy is excited to announce the launch of a new Online, Self-Paced model of learning for our Courses. This new platform of learning will provide many benefits to customers. Students who cannot invest several consecutive days away from work will now be able to get the training they need…
ASCO, L.P. - Series 362 3-Way & 562
IEC 61508 in the Safety Automation Equipment List
Blog Entry: What do you need to know about traceability for IEC 61508?
Traceability is about connecting the dots to determine that the web of activities for a functional safety project have followed the proper paths. Think of it like cheating at hide-n-seek; it provides a shortcut to find all those requirements and design parts that are hidden in your specification documents. If…
Woodward Industrial Controls - SonicFlo Gas Fuel Control Valve
IEC 61508 in the Safety Automation Equipment List
News Item: exida Presenting and Exhibiting at the 2017 ISA Process Control and Safety Symposium and Exhibition
exida will be presenting and exhibiting at the 2017 ISA Process Control and Safety Symposium and Exhibition . The Symposium will be held at the Houston Marriott Westchase 6-9 November 2017. Stop by Booth 308 and say hello. Sponsored by the Process Measurement and Control, Safety and Security, Chemical and…
Recorded Webinars: How Proof Test Coverage Affects PFDavg for a SIF
It’s a common problem that some end users assume a perfect proof test is possible, whereby all dangerous failures can be detected, removed and the SIF restored, thereby negating the effects of “mission time”. Another misconception surrounds Proof Testing and what this means. Some consider Proof Testing to be a means of ensuring the SIF is operational and works, however, in reality, the purpose of the Proof Test is to be able to find dangerous faults that the automatic diagnostics are not able to find.
Since there is no such thing as a “perfect Proof Test”, we have to consider the effectiveness in terms of the percentage of dangerous faults we can find during a Proof Test (i.e. 80% coverage means we can find 80% of potential dangerous faults, leaving 20% we can’t find). The webinar will explain and demonstrate the impact of imperfect Proof Testing on the PFDavg for Low Demand SIFs and how assuming 100% coverage can lead to a significant overestimation of the SIL capability of the SIF.
This is important for all SIS designers and End Users to understand since they could be fooling themselves into thinking they have more protection than they actually have.
Blog Entry: Random versus Systematic Faults: What’s the difference?
I saw and responded to a LinkedIn discussion on this very issue, where someone had asked “if I have a misaligned limit switch that fails dangerously, then is it random or systematic? “. This is an intriguing question because many view human error as being systematic and, whereas, this is…
Emerson KTM - AW(N) & CW Series
IEC 61508 in the Safety Automation Equipment List
Emerson KTM - AGN & AK Series
IEC 61508 in the Safety Automation Equipment List
Emerson KTM - E0, EB & JB Series
IEC 61508 in the Safety Automation Equipment List
Emerson KTM - E0 Series
IEC 61508 in the Safety Automation Equipment List
News Item: exida Presenting at Arm TechCon 2017
exida Senior Safety Engineer Mike Medoff will be presenting at Arm TechCon 2017 on Thursday, October 26 10:30am - 11:20am in Ballroom C at the Santa Clara Convention Center in Santa Clara, CA. Back for its 13th year, Arm TechCon is the only comprehensive event showcasing the latest advances in…
News Item: New Book: Safety Instrumented System Design: Techniques and Design Verification
ISA and exida are pleased to announce the release of the publication Safety Instrumented System Design: Techniques and Design Verification written by Iwan van Beurden, CFSE and William M. Goble, CFSE from exida. This book provides an excellent description of the design phase of the SIS safety life cycle as…
News Item: exida Presenting and Exhibiting at the 20th Annual International Symposium
exida will be presenting and exhibiting at the 20th Annual International Symposium . The 2017 International Symposium, in association with IChemE, will be held at the College Station Hilton Conference Center on October 24-26, 2017. The symposium serves as the crossroads for process safety where industry, academia, government agencies and…
Training Course: IEC 61511: Operations & Maintenance
This Course is Also Offered Online In this course, the student develops an understanding of the requirements for operations and maintenance in IEC 61511. You will also understand the importance in the functional safety lifecycle and how good and bad maintenance impacts the performance of the SIS and its SIFs.…
Emerson - Rosemount 8800D Vortex Flowmeter
IEC 61508 in the Safety Automation Equipment List
News Item: exida CTO IWAN van BEURDEN BECOMES ISA FELLOW
The International Society of Automation (ISA) announced that exida’s Chief Technology Officer Iwan van Beurden has received the distinguished membership grade of ISA Fellow for development of probabilistic analysis safety verification data, methods, and tools used to improve the safety lifecycle in the process industries. ISA Fellow status is granted…