Rockwell Automation Publication 1756-RM012B-EN-P - April 2018 37
Chapter 5
Characteristics of Safety Tags, the Safety Task,
and Safety Programs
Differentiate Between
Standard and Safety
Because it is a Logix controller, both standard (non-safety-related) and safety-
related components can be used in the GuardLogix control system.
You can perform standard automation control from standard tasks within a
GuardLogix project. GuardLogix 5580 controllers and Compact GuardLogix
5380 controllers provide the same functionality as other controllers. What
differentiates the controllers from standard controllers is that the controllers
also provide a SIL 2 or SIL 3 capable safety task.
However, a logical and visible distinction is required between the standard and
safety-related portions of the application. The Studio 5000 Logix Designer
application provides this differentiation via the safety task, safety programs,
safety routines, safety tags, and safety I/O devices.
• GuardLogix 5580 controllers support both SIL 2 and SIL 3 levels of
safety control with the safety task. See SIL Certification on page 9
.
• Compact GuardLogix 5380 controllers support SIL 2 level of safety
control with the safety task. See SIL Certification on page 9
.
Topic Page
Differentiate Between Standard and Safety 37
The Safety Task 38
SIL 2 and SIL 3 Safety Application Differences 40
Use of Human Machine Interfaces 42
Safety Programs 44
Safety Routines 44
Safety Tags 45
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