Functional Safety “SIL” Rating 
		
		
Functional Safety is implemented in a system which performs, detects or reports safety functions from design processes in IEC 61508 and augmented under a QMS of ISO 9001. Safety functions of equipment and the reliability of the functions give the SIL ratings. 
		
		
SIL1 ≥ 10 times 
		
		
SIL2 ≥ 100 times 
		
		
SIL3 ≥ 1000 times 
		
		
											  Article ID: 414
											  Created On: Tue, Oct 14, 2008 at 3:02 PM
											  Last Updated On: Thu, Jun 26, 2014 at 7:59 PM
											  Authored by: Administrator
											
Online URL: https://www.prosoft-technology.com/kb/article.php?id=414