GuardLogix Functional Safety

The

GuardLogix®

5580 controller system is certified for use in safety applications up to and including SIL 2/PLd and SIL 3/PLe where the de-energized state is the safe state:

For SIL 3/PLe safety applications, the
GuardLogix®
system is made up of a primary controller and a safety partner that function together in a 1oo2 architecture.
For SIL 2/PLd and SIL 3/PLe safety system requirements, including functional validation test intervals, system reaction time, and PFD/PFH calculations, see 1756-RM012.

You must read, understand, and fulfill these requirements before you operate a

GuardLogix®

SIL 2/PLd or SIL 3/PLe safety system.