Welcome to our knowledge section. Please use this section to educate yourself about Functional Safety. You will find here forum posts and a functional safety glossary with terms and definitions related to functional safety.
| LOPA combination 2 SIF's in a SIS layer
Petra Verhulst 28.3.2013 5:37
|When we got 2 SIF\'s in a SIS layer to protective a high pressure in a tank. For example: First SIF is a SIL 2 loop (instrumental protection) and second SIF is also a SIL 2 loop (instrumental prot...|
| Proof test
Angelo Galli 25.3.2013 6:41
|Dear All, I have a question regarding periodic proof test required by the Standard IEC 61511. In particular about a proof test of a valve. It is possible monitor the movement of a process val...|
| Difference between Maintenance Overr...
Kashif Channar 26.6.2012 10:03
|I would like to know about the key difference between process override and maintenance override. For example, one transmitter has some problem and maintenance team wants to work on that transmi...|
| Re: EN 62061 / Annex F CCF / "tempor...
Howard Wheeler 16.5.2012 8:56
|David Collier of Pilz (on LinkedIn) has provided me with what I think is perhaps the most useful answer so I\'ve re posted it here for information David Collier • Howard, temporal monitoring (s...|
| Re: 3oo4 PFD calculation
Pero Juric 15.3.2012 11:00
|Try as 6 X 1oo2, but increase BetaCC_3oo4 = 4 X BetaCC_1oo2 Shouldn\'t be a problem|
|VHDL||Very High Speed Integrated Circuit Hardware Description Language|
|SIL||Safety Integrity Level|
|SFF||Safe Failure Fraction|
|RAM||Random Access Memory|