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Blog Entry: Spaces and Braces and Comments – Oh My!
What constitutes a good coding guideline? Serious software development for functional safety requires a coding standard or coding guideline. Most organizations have one, but how do you know if it’s good? You need to look beyond the boilerplate and physical code layout that are often defined in a coding guideline.…
Blog Entry: Tool Qualification and Safety Standards
When building a product such as an anti-lock braking system for an automobile, or a railroad, or process control safety system, making sure that the product works as specified is a big part of functional safety. When it is time for the system to engage to prevent an accident, you…
Blog Entry: Alarm Rationalization is “Going Green (field)”
With the growing adoption of the ISA-18.2 standard on alarm management, industry leaders are increasingly implementing alarm management best practices (such as alarm rationalization) during the upfront design, before they start up control systems for new, “Greenfield” installation. There are numerous benefits. You think alarm overload and nuisance alarms are…
Blog Entry: Certification Accreditation
I am often asked “who says exida can certify a product?” The best answer is of course “the marketplace.” End user owner/operators ask for an exida certificate because they understand why technical competency is so important when evaluating design quality. Then instrumentation manufacturers get an exida certificate because exida analysts…
Honeywell - SmartLine ST 800 HART
IEC 61508 in the Safety Automation Equipment List
News Item: EXIDA WELCOMES JACK GAO, ALAN GAULTON, AND STEPHEN BURKE TO THE EXIDA TEAM
Jack Gao joins exida as a Safety Consultant in our Asia Pacific region. Mr. Gao has 8 years of experience in C++ and Java programming and is familiar with writing VHDL for Field Programmable gate array (FPGA) device. He is also familiar with using Matlab. And, in addition, has experience…
Blog Entry: IEC 61508 Compliant Module Testing: Part 4
Part 3 covered the design of tests, resulting in one or more Module Test Plans. To execute a test plan, one would start with the test plan and a test results template (which could be a copy of the test plan as indicated previously), document the general test information specific…
Blog Entry: Industrial Control System Cyber Security – Legislation and Standards
There is a lot of concern around cyber security in Industrial Control Systems. With new threats like Stuxnet and Flame, the perceived risk to critical infrastructure has increased dramatically. There are increased calls for legislation and new methods for dealing with these threats. The history of how we have dealt…
Blog Entry: IEC 61508 Compliant Module Testing: Part 3
The Test Plan Assessment requires evidence that module tests are designed properly, run properly, and have been successfully run. Documented test results are also required. In order to meet these requirements it is generally a good idea to document a test plan for each module. Information that applies to all…
News Item: exida Presenting at 2012 Yokogawa Users Group Conference & Exhibition
exida’s John Cusimano, Director of Security Services will be presenting at Yokogawa’s 2012 Users Group Conference & Exhibition , which will be held October 30 – November 1, 2012 in New Orleans, LA. About the Presentation: Title: “Evaluating the Security of Automation Products & Systems” Numerous standards have been published…
News Item: exida Presenting at 3rd Safety Control Systems Conference
exida’s John Cusimano, Director of Security Services will be a keynote speaker and presenter at the 3rd Safety Control Systems Conference in Edmonton, Alberta, Canada. The conference will be held November 27-29, 2012. Mr. Cusimano’s presentations include: “A Semi-Quantitative Risk Assessment Technique for Cyber Security Threats” Cyber threats are increasing…
Blog Entry: IEC 61508 Compliant Module Testing: Part 2
Last week you learned about what exactly a module is, and examples of different types of modules. Now we will move on to interfaces, the need for module testing, and code coverage requirements. An interface, such as the 3D printer’s communication interface, or the format of the 3D data it…
Blog Entry: Pen Testing a Live Control System – Are You Mad?
A recent, disturbing trend I’ve seen in industrial control system 〈ICS〉 security is that, in response to concerns about the security of their ICS & SCADA systems, companies are performing penetration (pen) testing on operational systems. Often times they request these services as one of the first steps in their…
Blog Entry: IEC 61508 Compliant Module Testing: Part I
3D printers are cool! I watched a TED talk this past year about them. I know they have been around for over 30 years, but I still think they’re cool. As I watched, I thought of the wheel for my dishwasher’s roll-out rack, which had recently fallen off and melted…
Emerson Automation Solutions - DVC6200 SIS Digital Valve Controller
IEC 61508 in the Safety Automation Equipment List
Emerson Automation Solutions - DVC6200 Digital Valve Controller
IEC 61508 in the Safety Automation Equipment List
Emerson Automation Solutions - DVC6200 SIS Position Monitor
IEC 61508 in the Safety Automation Equipment List
Rosemount - 644 4-20mA HART
IEC 61508 in the Safety Automation Equipment List
Blog Entry: How to Decode an exida IEC 61508 Certificate: Part 2
Click here to read Part 1 Now that you know the step-by-step process of product certification, now let’s take a look at the actual information on the certificate. In the left panel (gray background) you will find an exida certification logo. The logo contains information on the standard used for…
News Item: exida Exhibiting and Presenting at 2012 Emerson Global User Exchange in Anaheim, CA
exida will be exhibiting and presenting at the 2012 Emerson Global User Exchange October 8-12, 2012 in Anaheim, California. Stop by Booth #502 during exhibit hours. Also, Dr. William Goble, Principal Partner and Todd Stauffer, exida Director of Alarm Management are among the presenters at this year’s event. Please see…
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