Performing a SIL Verification calculation on preliminary design information can be a very useful tool to dial in the Safety Instrumented Function (SIF), Safety Requirements Specification (SRS) content , and define critical elements for the field component purchase specifications. Conceptual verification is typically performed quickly with general design information.…
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Entries tagged with: Safety Requirements Specification
- by Denise Chastain Knight, P.E., CFSE, CCPSC
- Wednesday, May 27, 2015
- Functional Safety
Close Enough? Not so Much
- by Steve Gandy, CFSP
- Thursday, January 21, 2016
- Functional Safety
Safety Requirements Specifications (SRS): The Good and the Bad
The IEC 61511 Standard requires the user to create a Safety Requirements Specification (SRS) for a Safety Instrumented System (SIS) that incorporates all the analysis done during the Risk Assessment, HAZOP/PHA and LOPA reviews. The SRS falls into two types: an initial conceptual SRS, often referred to as the…
- by Iwan van Beurden, CFSE
- Tuesday, June 14, 2016
- Software
The Meaning of Tool Integration
What does tool integration mean? One can argue it is the ability for different tools to talk to each other and exchange data. Though this may be true from a typical software tool integration, a common definition of integrate, i.e. to bring together or incorporate (parts) into a whole…