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Rockwell Automation Publication 1756-RM012B-EN-P - April 2018
Chapter 5
Characteristics of Safety Tags, the Safety Task, and Safety Programs
A typical SIL 3 wiring diagram is shown in
Figure 15 - SIL 3 Wiring
Use of Human Machine
Interfaces
Follow these precautions and guidelines for using HMI devices in SIL-rated
GuardLogix systems.
Precautions
You must exercise precautions and implement specific techniques on HMI
devices. These precautions include, but are not restricted to the following:
• Limited access and security
• Specifications, testing, and validation
• Restrictions on data and access
• Limits on data and parameters
For more information on how HMI devices fit into a typical SIL loop, see
GuardLogix Architecture on page 11
Use sound techniques in the application software within the HMI and
controller.
IMPORTANT
These wiring drawings are examples of possible wiring configurations.
Depending on your I/O device and system configuration, other wiring
configurations can also be used.
IMPORTANT
The onboard pulse test outputs (T0…Tx) are typically used with field
devices that have mechanical contacts. If a safety device that has electronic
outputs is used (to feed safety inputs), they must have the appropriate
safety ratings.
I0
I1
T0
T1
Содержание Compact GuardLogix 5380
Страница 62: ...62 Rockwell Automation Publication 1756 RM012B EN P April 2018 Chapter 6 Safety Application Development Notes...
Страница 88: ...88 Rockwell Automation Publication 1756 RM012B EN P April 2018 Appendix C Reaction Times Notes...
Страница 108: ...108 Rockwell Automation Publication 1756 RM012B EN P April 2018 Glossary Notes...
Страница 114: ...114 Rockwell Automation Publication 1756 RM012B EN P April 2018 Index...
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