Category Archives: IEC61508

Fault Tree+ Training – International System Safety Conference

Reliability Workbench FaultTree+

Fault Tree Analysis – Why you do it and what you get from it.

Minimal Cut Sets: Combinations of component failures that cause system failure.

Failure Models: How to put numbers into a Fault Tree, so you can get numbers out.

System Quantification: A brief overview of the calculations used to quantify a Fault Tree.

Friday the 13th Webinar: Reliability Workbench Upgrades 13.0.2

Although some might have superstitious feelings about Friday the 13th. We have chosen to hold a webinar to get you away from all the coffee talk. For Friday the 13th we have come up with a special preview of our next version of Reliability Workbench which is also version 13 (specifically 13.0.2). Join us for this special webinar, on Friday October 13th at 12 PM Eastern Time, to get an early look at the new features that have been added. We have added significant changes to the report viewer interface, updated Prediction stands, data linking to the Allocation module, new DLL functions, expanded IEC 61508 calculations for both the Fault Tree and FMECA modules, a new Fault Tree failure model, and a brand-new results dialog for the FMECA module, complete with ISO 26262 functionality. There’s plenty to get excited about.

Please register by clicking: HERE

As always if you have any questions, comments or feedback please let me know.

Best Regards, Jeremy

jhynek@isograph.com 

ISO 26262 Certified Software From Isograph

ISO 26262 Compliant Safety Analyses


Isograph is pleased to announce that Reliability Workbench FaultTree+ and FMECA modules have been tested by SGS-TÜV according to ISO 26262-8:2011 and certified as suitable for safety analyses up to ASIL D.
ISO 26262 (Road vehicles – Functional safety) is an adaptation of IEC 61508 for the automotive industry. It addresses possible hazards due to malfunctions in electronic/electrical safety related systems in passenger vehicles up to 3500kg.

Isograph’s world leading reliability software is used widely in the Automotive industry for ISO 26262 compliant safety analyses.

Click here to learn more… 

SGS_TUV_Gepruefter_Service_DE_TPL

We appreciate your support of Isograph Software, if you have any questions or recommendations for the blog posts please let me know.

Best Regards, Jeremy

jhynek@isograph.com

How To Use Your Settings in Reliability Workbench (FaultTree+)

We have collected commonly asked questions by our 1000’s of users. Some of the questions that we’ll answer along the way include:
Why do my cut sets show gate names with an asterisk next to them?
OK, so I enter a “failure rate.” Is that failures per… hour? Year? Geological epoch? What are the units?
This fault tree takes ages to calculate. Can I speed it up?
Fault tree uses approximation methods for solving the tree? Do I have any control over that?
My computer crashed and I lost 3 hours of work! Can I create automatic backups of my project?
What if I want to see MTTF on my fault tree, instead of Q?
I have a plotter. How do I print the whole tree on one piece of paper?
Can I force scientific notation in the results?
What if I don’t want to delete the inputs to a gate when I delete the gate?
I really love the font Comic Sans. Can I use that in my fault tree?
Also, chartreuse is my favorite color. How do I set that as default?
How do I set default options, so I don’t have to reset these every time I start a new project?

We’ll also look at the useful and often-overlooked Report Options. Did you know that you can force the diagram to be black & white for printouts? Or make the fault tree symbols bigger? Or change the order of the pages?

IEC 61508/61511, ISO26262, IEC61512, IEC62279…..ect…

Depending on your industry there are several adaptations of the IEC 61508 which include: the ISO 26262 for automotive, the IEC 61511 for SIS in process safety, the IEC 61513 for Nuclear power, IEC 62279 for Rail Software as well as many others. Basically if you are calculating System Integrity Levels (SIL) or Safety Instrumented Systems (SIS) we have you covered.

Please check out our webinar building a Fault Tree Model adhering to the IEC61508 (and all adaptations):