The exSILentia® safety lifecycle tool incorporates SILect™, a SIL target selection tool. The objective of SIL target selection is to determine the amount of risk reduction needed based on a certain level of process risk and corporate tolerable risk guidelines. This webinar will explain the exSILentia SILect tool and describe the various methods available to define corporate tolerable risk and determine project level risk.
This paper highlights the similarities and differences between the safety parameters which result from OREDA and FMEDA data analysis methods. The statistical parameter estimations performed by OREDA (which are based on expert analysis of field failure data (FFD) from offshore and onshore topside oil exploration and production facilities as well…
The adoption of the functional safety standards continues to gain momentum in turbine applications. Both industrial and power turbine sites are now requiring compliance to IEC 61511. This blog will review both technical requirements and market trends related to functional safety system design. Market trends will cover which standards are…
Loren Stewart, exida Safety Engineer will be presenting at the 2015 Process Control and Safety Symposium to be held November 9-12, 2015 in Houston, TX. The presentation is titled “FMEDA Predictions and OREDA Estimations for Mechanical Failure Rates: Explaining the Differences.” More information can be found below: FMEDA Predictions and…
exida’s Desmond Lee will be presenting at the 2nd CCPS Global Summit on Process Safety to be held November 3-5, 2015 in Kuala Lumpur, Malaysia. The presentation is titled “ Understanding the Similarities and Difference of OREDA and FMEDA Data Analysis .” More information can be found below: Understanding the…
Schneider Electric has received an ISASecure Security Development Lifecycle Assurance (SDLA) conformance certificate from exida, LLC, an ISASecure ISO 17065 accredited certification body. This first-of-its-kind certificate applies to Schneider Electric’s Process Automation business product development centers in Foxboro (Mass.), Worthing (U.K.) and Hyderabad (India). It is based on international cybersecurity…
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
IEC 61508 in the Safety Automation Equipment List
IEC 61508 in the Safety Automation Equipment List
exida has launched the web site www.silsafedata.com . SILSafe Data is a web site listing a number of product categories used in process control and the expected range of failure rates for process industry applications. The use of realistic and application appropriate failure rate data has a significant impact on…
This webinar first describes the distinction between failure rate prediction and estimation methods in general. It then gives details about the procedures used to obtain generic failure rates for certain mechanical equipment using FMEDA predictions and OREDA estimations along with other methods used in industry today. The results of the two methods when applied to a number of specific equipment items are compared and, when differences in the results exist between the two methods, plausible explanations for differences are provided. Equipment examples include a representative of topside equipment items and representative subsea equipment items. The relative merits of each method are discussed along with comparisons to industry databases and field studies. Finally we will discuss what is a realistic failure rate for mechanical devices and what to do if you find yourself looking at unrealistic numbers.
IEC 61508 in the Safety Automation Equipment List
Performance based functional safety standards like IEC 61511 offer many advantages including the opportunity to optimize and upgrade Safety Instrumented System 〈SIS〉 designs. But performance calculation depends upon realistic failure data for instruments used. A predictive analysis technique called Failure Modes Effects and Diagnostic Analysis (FMEDA) has been developed along…
This paper introduces a benchmarking technique we call Predictive Analytics (PA). Using a large set of data from FMEDA results in combination with validated field failure data, upper and lower reasonability bounds for instrument device failure rates can be established. These bounds can be used as a benchmark to help…
Mike Medoff, exida Senior Safety Engineer will be presenting at the 2015 ICS Cyber Security Conference to be held October 26-29, 2015 in Atlanta, GA. Learn more about the presentation below: Is Your Equipment Security Certified? Certification is a term thrown around that means many things in many contexts. In…
exida, the global leader in functional safety and cybersecurity certification for the process industries, is pleased to announce the winners of their 2015 Safety Awards. “The products and processes that were nominated for this year’s awards are all extremely innovative and exhibit exceptional work,” says Mike Medoff, exida senior safety…
The adoption of the functional safety standards continues to gain momentum in turbine applications. Both industrial and power turbine sites are now requiring compliance to IEC 61511. This blog will review both technical requirements and market trends related to functional safety system design. Market trends will cover which standards are…