Operating System. Has been assessed per the relevant requirements of: IEC
61508 : 2010 Part 3. EN 50128: 2011 and meets requirements providing a level
of ...
Certificate / Certificat
The manufacturer may use the mark:
Zertifikat / GHS 1105010 C001 exida hereby confirms that the:
INTEGRITY / velOSity Operating System Green Hills Software, Inc. Santa Barbara, CA - USA Has been assessed per the relevant requirements of: Reports: GHS 11/05-010 R001 V1 R2 Assessment Report
IEC 61508 : 2010 Part 3 EN 50128: 2011 and meets requirements providing a level of integrity to:
Validity: This assessment is valid for the INTEGRITY / velOSity Operating System Version V5.2.2. This assessment is valid until July 1, 2015. Revision 1.1 July 24, 2012
Systematic Integrity: IEC 61508: SIL 3 Capable EN 50128: SIL 3/4 . Application Restrictions: The listed Operating Systems are suitable for use in Safety Instruments / Safety Instrumented Functions when utilized in accordance with the Safety Manual requirements.
® Certification Services
Place embossed seal here for originals, lining it up at the bottom
Evaluating Assessor
Certifying Assessor Page 1 of 2
Certificate / Certificat / Zertifikat / GHS 1105010 C001 Systematic Integrity: IEC 61508: SIL 3 Capable EN 50128: SIL 3/4 INTEGRITY / velOSity Operating System Green Hills Software, Inc., Santa Barbara, CA USA
SIL Capability: The product has met software design process requirements of Safety Integrity Level (SIL) 3 for IEC 61508, and Software Safety Integrity Level (SWSIL) 3/4 for EN 50128. These are intended to achieve sufficient integrity against systematic errors of design in the software. A Safety Instrumented Function (SIF) designed with this product must not be used at a SIL level higher than stated without “prior use” justification by end user or diverse technology redundancy in the design. SIL Verification: The Safety Integrity Level (SIL) of an entire Safety Instrumented Function (SIF) utilizing this software must be verified via a calculation of PFDAVG considering redundant architectures, proof test interval, proof test effectiveness, any automatic diagnostics, average repair time and the specific failure rates of all products included in the SIF. Each subsystem must be checked to assure compliance with minimum hardware fault tolerance (HFT) requirements.
® Certification Services 64 N Main St Sellersville, PA 18960 Form
