US Chemical Safety Board cites lack of Alarm Philosophy , Alarm Rationalization , and State-Based Alarming as Contributing Factors to Blowout in Oklahoma On January 22, 2018, a blowout and rig fire at the Pryor Trust gas well killed five workers, who were inside the driller’s cabin on the rig…
The global leader in functional safety, industrial cybersecurity, and alarm management for the process industries, exida, today announced the establishing of a local office in Brisbane, QLD, Australia. “exida has been very active in Australia over the last two decades, we have formed many good relationships with customers of our…
Route 1 H is one of two Architectural constraints options made available in the standards IEC 61508-2 and IEC 61511. Route 1H . Both Route 1 H and Route 2 H are limitations that impose the hardware selected to implement a safety-instrumented function, regardless of the performance calculated for a…
Sellersville, PA: The global leader in industrial automation cybersecurity certification, exida, has presented Honeywell with the exida Embedded Device Safety Award for their product, the ControlEdge PLC. The exida Cyber Awards honor exida-certified products and processes that best demonstrate new and innovative work in the realm of industrial cybersecurity, which…
IEC 61508 in the Safety Automation Equipment List
Are you seeing functional safety or cybersecurity inquiries on your Request for Proposals (RFP)? Are you new to “SIL,” “PL,” or “SL?”
Well since another incredible year has come and (almost) gone, it is that time of year again to go over our TOP 3 Questions that are asked for Certification in the Process Industry!
(i.e. IEC61508, IEC61511, IEC62443, ISO26262, IEC62061, ISO13849 to name a few)
This webinar highlights the importance and need for performing functional safety assessments and the problems that can arise if these are not performed correctly. The IEC61511 standards identifies 5 stages where Functional Safety Assessments are recommended and/or required. The wording in the standard is somewhat confusing and this webinar helps shed light on which ones should be performed. The primary purpose of a functional safety assessment is to act as an independent means of cross-checking safety to ensure that all the requirements in the SRS have been met. It is also a primary means of ensuring that systematic errors have not been introduced over the course of the lifecycle.
We all know that an FMEDA is only as good as the assumptions made regarding typical design engineering practices and the database used for the failure rates. Here is the catch, not all products are designed and manufactured per the same rules! Many manufacturers boast that their product is the…
This webinar addresses the question of what Good Site Safety Practices means, as well as looking at the competency requirements. Most companies believe they follow good site safety practices but do they really? Are they really measuring and tracking this?
Recent major accidents have been traced back to poor site safety practices, culture and competencies. The webinar address some of these issues and suggests a means for tracking and measuring how well maintenance and mechanical integrity is being performed. The Site Safety Index model is a simple, semi-quantitative tool that can be used to assess where a company sits in terms of its capabilities and performance.
IEC 61508, ISO 26262 in the Safety Automation Equipment List
IEC 61508 in the Safety Automation Equipment List
IEC 62443-4-1, ISASecure SDLA in the Security Automation Equipment List
Alarm floods are periods of alarm activity during which the alarm rate is greater than the operator can effectively manage (e.g., when the operator receives ≥10 alarms in 10 minutes). During a flood situation awareness is compromised and alarms are likely to be missed. In the eleven minutes prior to…
exida’s exSILentia® SILver™ module is the gold standard for SIL verification in the industry. For almost 20 years it has allowed users to design their safety instrumented systems by defining architecture, voting, and equipment selection and ensuring the safety integrity of each instrumented function. The conceptual design as documented in SILver™ in combination with the Safety Requirements Specification (SRS) specifies the requirements for the application program of a SIF/SIS’s a logic solver. Converting these requirements can be time consuming and can be prone to errors due to misinterpretation of the requirements.
Using the exSILentia® SIS Logic module, the application program can be automatically generated with the click of a button. Apart from time savings due to automatic conversion, an additional benefit is the ability to start the logic creation process later in the project schedule avoiding costly redesign activities. This webinar will review the possibilities of automatic application program creation and demonstrate the SIS Logic module as well.
The question of whether companies follow good site safety practices is an interesting one. Firstly, what do we mean by good site safety practices? I think most companies believe they follow good site safety practices but do they really? Are they really measuring and tracking this? The basis of having…
IEC 61508 in the Safety Automation Equipment List
New reports out now are claiming that an aging, failed elbow pipe appears to be the initial cause of a June 21 fire and subsequent explosions that injured five people at the largest oil refinery on the East Coast, federal investigators said. The U.S. Chemical Safety and Hazard Investigation Board…
PFH (Probability of dangerous Failure per Hour) is the probability that a system will fail dangerously, and not be able to perform its safety function when required. PFH can be determined as a probability or maximum probability over a time period of an hour. IEC 61508 and IEC 61511 use…
With the rapid growth of IEC 61508 Safety Integrity Level (SIL) Certification and now IEC 62443 Cybersecurity Certification, many companies are trying to catch up and understand what is involved. Manufacturers, System Integrators, and End Users have MANY different options when obtaining certification. Certification with exida is now molded around the company and NOT around the certifying body. How much time will it take? How much will it cost? How many man hours will be consumed to achieve certification? What are the benefits? These are now ALL questions our potential customers have the ability to choose!
Situation: There are three operator consoles (positions) in the same control room. There is one general alarm horn that goes off whenever a new alarm comes in from any one of the three consoles. The horn draws the attention of each of the three operators. Question: How are the ISA-18.2…