IEC 61508 in the Safety Automation Equipment List
IEC 61508 in the Safety Automation Equipment List
IEC 61508 in the Safety Automation Equipment List
Over the last couple of blogs, I mapped out the importance of ISA/IEC-62443/ISA-99 based cybersecurity and how it applies to your work environment. For part 1 , I started from the beginning and outlined what exactly ICS cybersecurity is and why it is important. For part 2 , I explained…
Functional Safety standards dictate that the Overall SIF Response Time be documented in the Safety Requirements Specification (SRS), but little direction is provided to assess the parameter. This webinar will
exida will be presenting and exhibiting at the 2016 ISA Process Control and Safety Symposium and Exhibition to be held Monday, 07 Nov - Thursday, 10 November, 2016 in Houston, TX. Stop by Booth #503 during exhibit hours. Also, Hal Thomas, exida Partner, and Todd Stauffer, exida Director of Alarm…
This webinar examines the revision in IEC61511-1 earlier this year to include a new clause regarding Cybersecurity and how this will impact end users. It has been recognized for sometime now that Industrial Control Systems can be susceptible to cybersecurity events, which could have potentially disastrous effects on Safety Instrumented Systems and Basic Process Control Systems. How immune a SIS or BPCS is depends upon how it was designed, its network topology and “openness” to the outside world. Compromising a SIS could result in a loss of protection, or worse still initiate unsafe or unstable process conditions.
exida will be presenting and exhibiting at the 2016 Emerson Global User Exchange to be held October 24-28, 2016 in Austin, TX. Stop by Booth #409 during exhibit hours. Also, Iwan van Beurden, exida Chief Technology Officer and Todd Stauffer, exida Director of Alarm Management are among the presenters at…
IEC 61508 in the Safety Automation Equipment List
IEC 61508 in the Safety Automation Equipment List
IEC 61508 in the Safety Automation Equipment List
IEC 61508 in the Safety Automation Equipment List
When I first heard this phrase, I was working in an R&D group developing electronic DCS. My first interpretation was that until the Sales Department got an order for a new product, new ideas sort of sat on the shelf with low priority… meaning that people were probably working on…
exida’s Director of Alarm Management Todd Stauffer will be participating in a Live Q&A Event entitled Everything you ever wanted to know about DeltaV Alarm Management, but didn’t have the Experts to ask . The event will be held at on the Emerson 265 Community web site and will be…
exida Senior Safety Engineer Mike Medoff received one of five ISA Standards & Practices Department Awards for 2016 for his expertise and leadership on the 62443-4-1 standard . The luncheon to honor award winners was held on Monday, Sept. 26, 2016 at the Newport Beach, CA Marriott Hotel. The ISA-62443-4-1…
Over the next couple of blogs, I plan to map out the importance of ISA/IEC-62443/ISA-99 based 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 the…
Sure, you might think I’ve got it made… sitting here on my perch telling you what you need to do to meet IEC 61508, while you sit there with all the work to do. Well, it wasn’t always that way. I was in your shoes, responsible for achieving functional safety…
ISO 26262 in the Safety Automation Equipment List
Functional safety standards provide definitions of two different categories of failures: random failures and systematic failures. These were created during the standards committee discussions of failure types to be modeled in the probabilistic failure analysis. The committee thinking was that systematic failures could be permanently “fixed” by a change in a design or a procedure.
Many companies establish programs to record and analyze failures. A failure rate analysis is performed to determine device failure rates. One problem observed while reviewing these studies is that many people have completely different interpretations of the definitions of random versus systematic failures.
At some sites, those performing the analysis have realized that failures classified as systematic do prevent safety devices from performing their safety function and are therefore dangerous.
This webinar will go over a recent survey performed and also discuss different viewpoints on how to classify failures.
Functional safety standards provide definitions of two different categories of failures: random failures and systematic failures. These were created during the standards committee discussions of failure types to be modeled in the probabilistic failure analysis. It was decided that random failures are counted in the probabilistic failure rate analysis and…