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News Item: Job Opening for Control System Security Engineer
Location: Anywhere in USA (preferably Mid-Atlantic or Gulf Coast) Description: Exida is seeking a highly-skilled, experienced individual to join our control system security services business. The primary duties of the candidate are: Facilitate control system security risk assessments Organize, lead and facilitate detailed system security vulnerability assessments Assist in the…
Blog Entry: Relating Test Data to Operating Modes & “Proven in Use”
Everyone wants data, and generally everyone agrees high quality proven in use data is the best. Properly designed experimental testing is one means to simulate actual operation. That is what we all learned as far back as high school during our chemistry and physics labs. These tests can be set…
Blog Entry: A False Sense of Security
About 5 years ago I was sitting around a big table in a conference room at a major LNG terminal. Outside the window I could see a big city harbor filled with boats, bridges, sky scrapers and approximately 5 million people. I could also see two huge LNG storage tanks…
IMI Critical Engr PBM - IM Series Double Block and Bleed Valves
IEC 61508 in the Safety Automation Equipment List
IMI Critical Engr PBM - TN Series Trunnion Ball Valves
IEC 61508 in the Safety Automation Equipment List
IMI Critical Engr PBM - AN Series Floating Ball Valves
IEC 61508 in the Safety Automation Equipment List
Blog Entry: (Almost) FREE Security Training
The Department of Homeland Security (DHS) is tasked with many things. One area of focus is Industrial Control Systems (ICS) . The Industrial Control Systems Joint Working Group (ICSJWG) was formed to facilitate this focus. This group holds semi-annual conferences (Spring and Fall) in various US cities. These meetings are…
Blog Entry: DANGER, DANGER, DANGER!
Assumed 10 Demands Per Year During a SIF verification calculation review this week, the engineer pulled out a safety certificate with very low failure rates for a solenoid valve. Certificate No. V139 2009 C4-4 [1] states that a solenoid valve has a dangerous failure rate of 4.57 E-10 failures per…
Blog Entry: “Building Security In”
Cybersecurity continues to be a big problem for the world at large and for control systems specifically. The amount of time and effort that it can take to simply keep all of the security patches up to date on a large control system can be mind boggling. No matter how…
Detector Electronics - GT3000
IEC 61508 in the Safety Automation Equipment List
News Item: exida Presenting at 2012 Siemens Automation Summit
John Cusimano, exida’s Director of Security Services, will be presenting at the 2012 Siemens Automation Summit , which will be held June 25-28, 2012 in Washington, DC. Title: “Assessing the Security of ICS Systems Using Threat Modeling” Presenter: John Cusimano, exida Director of Security Services Description: Threat Modeling is a…
News Item: EXIDA CERTIFIES SYSTEMS ENGINEERING CONSULTANTS’ RTMSafety FOR FUNCTIONAL SAFETY
exida, an accredited global certification company, has certified the Systems Engineering Consultants’ RTMSafety for functional safety compliance. The certification ensures that the world’s first middleware for robot automation meets the functional safety requirements for Safety Integrity Level (SIL) 3 Systematic Capability per IEC 61508. “The software development process requirements in…
Blog Entry: The Battle of the Failure Rates
Site Specific vs. Product Specific During a field failure analysis study, it was discovered that the calculated failure rate of a specific device varied by more than 4X depending on installation site. Particularly, it was one specific site with a high failure rate . While any reliability engineer would say…
PR Electronics A-S - 9106 HART transparent repeater
IEC 61508 in the Safety Automation Equipment List
System Engineering Consultants Co., Ltd. - RTMSafety
IEC 61508 in the Safety Automation Equipment List
General Electric - Masoneilan 12400 Series Level Transmitter
IEC 61508 in the Safety Automation Equipment List
Blog Entry: I Don’t Want No D*** Diagnostics!
After a false trip incident, I heard a control engineer express his displeasure with the automatic diagnostics in a new safety rated transmitter. The transmitter diagnostics were annunciated by sending the analog current out of range. In this case, the current went to 3.6 milliamps. The problem was that the…
Blog Entry: The Safety Lifecycle as a Risk Control Loop
I have been doing a number of recent projects introducing the safety lifecycle to companies that are new to the field. As a result I have been playing with various ways to think about the overall safety lifecycle philosophy. As many of the more experienced readers are aware, the overall…
White Paper: Using Alarms as a Layer of Protection
Alarms and operator response to them are one of the first layers of protection in preventing a plant upset from escalating into a hazardous event. This paper discusses how to evaluate and maximize the risk reduction (or minimize the probability of failure on demand) of this layer when it is…
News Item: exida Featured as the Cover Story for the March/April Issue of InTech Magazine
Dr. William Goble, CFSE, exida Principal Partner authored the cover story featured in the March/April 2012 issue of InTech Magazine , titled “The FMEA Method.” A powerful reliability tool for data analysis that lasts for decades. A Failure Mode and Effects Analysis (FMEA) is a system reliability and safety review…
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