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News Item: exida Expert to Keynote at European Space Agency Conference
Sellersvile, PA - exida is excited to announce that Dr. Molly O’Brien, part of a team of experts developing a certification scheme for Safety Functions that include Machine Learning (ML), will deliver a keynote presentation at the European Space Agency's (ESA) Software Product Assurance Conference . The event, which brings…
Recorded Webinars: How Does a SIF Achieve its SIL Target
For A Safety Instrumented Function (SIF) to achieve its target SIL, the IEC61511 standard requires that it meets three design requirements: PFDavg/PFH, Architectural Constraints and Systematic Capability. Many people consider meeting the PFDavg/PFH target sufficient, but this is not the case. A SIF is an Independent Protection Layer (IPL), which is required to satisfy 4 requirements:
S – must be specifically designed to prevent the consequence of the hazardous event
I – must be completely Independent from all other IPLs
D – must be designed to have sufficient defense against random and systematic failures
A – must be auditable in terms of being able to be tested and maintained
Therefore, meeting the random hardware failure dependability is the PFDavg/PFH and meeting the systematic failure dependability is the Systematic capability. The architectural constraint requirement is required to counteract any unrealist parameters used in the PFDavg/PFH calculations and determines the level of Hardware Fault Tolerance (HFT) required. The webinar examines what’s involved with determining the PFDavg/PFH and the 9 key variables associated with this, as well as the importance of tracking Useful Life, and how to determine the HFT using the tables in IEC61508 or the table in IEC61511. It also looks at equipment qualification for the SIF and the use of IEC61508 certified devices or Prior Use justification to meet the systematic requirements.
What you will learn?
- What is involved with determining the SIL achieved by the SIF
- The importance of meeting the 3 design requirements
- How to meet the systematic requirement
- How to justify use of the equipment
Who should attend?
- SIS designers and Engineering contractors
- SIS maintenance personnel
- Plant Managers and Supervisors
Blog Entry: How Does A SIF Achieve its SIL Target?
This is a question I’ve been asked many times, with some stating that as long as the PFDavg (or PFH) meets the target SIL then that’s fine. Whereas this statement is partially true, it is not the full answer. IEC61511 defines the criteria for meeting the requirements of an Independent…
News Item: exida Appoints Richard (Richie) Butler as Country Manager for UK and Ireland
SELLERSVILLE, PA — exida, a global leader in functional safety, cybersecurity, and alarm management, is pleased to announce the appointment of Richard (Richie) Butler as the new Country Manager for the UK and Ireland. Born and raised in the south of the county but currently residing in North Tipperary, Ireland,…
KF Valves - Series FE Floating Ball Valves and Series M3 Trunnion Mounted Ball Valves
IEC 61508 in the Safety Automation Equipment List
SVF Flow Controls - B8, H7, FB9, R8, SB7, SB7F, B41D, and B42D 2-Way Floating Ball Valves
IEC 61508 in the Safety Automation Equipment List
SVF Flow Controls - TSB7 & TSB7F 3-Way Floating Ball Valves
IEC 61508 in the Safety Automation Equipment List
SVF Flow Controls - AERO2 Pneumatic Rack & Pinion Actuator
IEC 61508 in the Safety Automation Equipment List
SVF Flow Controls - QUAD4 Pneumatic Rack & Pinion Actuator
IEC 61508 in the Safety Automation Equipment List
Recorded Webinars: NERC CIP Cybersecurity: A Deep Dive into Power Grid Protection and Beyond
This webinar offers an in-depth exploration of the NERC Critical Infrastructure Protection (CIP) standards, the enforceable cybersecurity framework for the power industry across the U.S. and parts of Canada. We'll break down the structure of these standards and their applicability, including the criticality tiers (Low, Medium, and High) that determine the required level of protection for a site based on its potential impact on the power grid.
You'll gain a clear understanding of the key requirements of NERC CIP and how they compare to the IEC 62443 cybersecurity standards, highlighting areas of alignment and key differences. Most importantly, we'll discuss the valuable takeaways from NERC CIP—not just for regulated power sites but also for other industries looking to enhance their own cybersecurity posture. Join us to learn how to apply these powerful insights to protect critical infrastructure.
Blog Entry: The Future of Safety Management: Embracing Digital O&M Data
In today’s world, having your Operation and Maintenance (O&M) data in a digital format allows for increased accessibility and traceability. Using more traditional recordings, such as on paper or with various Excel notebooks, increases the chances of error or loss of data. These methods also make it difficult to analyze…
Recorded Webinars: Más allá de la baja demanda: Entendiendo el verdadero modo de operación de tu SIF
¿Cómo sabemos cuál es el modo de operación de una SIF? Mucha gente en la industria de proceso asume que la SIF operará en baja demanda, lo cual no siempre es así, pudiendo traer como resultado que la SIF diseñada tenga un desempeño pobre en seguridad, y por lo tanto, un incremento en el riesgo del proceso.
Blog Entry: How IEC 62443 Can Help Achieve Compliance with the EU Cyber Resilience Act (CRA)
Introduction: The European Union’s Cyber Resilience Act (CRA) is set to introduce mandatory cybersecurity requirements for “products with digital elements” , including those used in Industrial Control Systems (ICS) and Operational Technology (OT) environments. This regulation, slated for enforcement beginning December 2027 , aims to enhance cybersecurity across supply chains…
Johnson Controls Intenational PLC - YK and YZ Centrifugal Chillers Optiview™ Touchscreen
ISASecure in the Security Automation Equipment List
Zollner Elektronik AG - Automotive Cybersecurity Management System
ISO/SAE 21434 in the Security Automation Equipment List
Compressor Controls Corporation - Vanguard S5 Pro
ISASecure in the Security Automation Equipment List
White Paper: Enfoque Sistemático de la Seguridad Funcional en una Planta de Olefinas
Este estudio analiza los aspectos clave que conforman un sistema de seguridad funcional eficaz, de acuerdo con normas como IEC 61508 e IEC 61511. Los elementos más relevantes incluyen la identificación de las funciones instrumentadas de seguridad (SIF), la determinación del nivel de integridad de seguridad (SIL) y el diseño…
White Paper: A Systematic Approach to Functional Safety in an Olefins Plant
This whitepaper analyzes the key aspects of an effective functional safety system, from safety lifecycle management and risk analysis to the design of Safety Instrumented Systems (SIS) , in accordance with IEC 61508 and IEC 61511 . By addressing these elements, this systematic approach reduces operational risks and enhances the…
BK Vibro America Inc - SETPOINT VC-8000
eSTS in the Security Automation Equipment List
Blog Entry: Más allá de la baja demanda: Entendiendo el verdadero modo de operación de tu SIF (Beyond Low Demand: Understanding Your SIF’s True Mode of Operation)
ESPANOL ¿Se calcula el SIL de una SIF de Demanda Baja igual que el de una SIF de Demanda Alta o Continua? Es muy importante identificar el modo de operación que es asignado a la Función Instrumentada de Seguridad (SIF). En la industria de procesos lo más común es que…