Rockwell Automation Publication 1756-UM022D-EN-P - May 2017 101
Chapter 6
Develop Safety Applications
This chapter explains the components that make up a safety project and
provides information on using features that help protect safety application
integrity, such as the safety task signature and safety-locking.
For guidelines and requirements for developing and commissioning SIL 3 and
PLe safety applications, refer to the GuardLogix 5570 and Compact
GuardLogix 5370 Controller Systems Safety Reference Manual, publication
1756-RM099.
The Safety Reference Manual addresses the following topics:
• Creating a detailed project specification
• Writing, documenting, and testing the application
• Generating the safety task signature to identify and protect the project
• Confirming the project by printing or displaying the uploaded project
and manually comparing the configurations, safety data, and safety
program logic
• Verifying the project through test cases, simulations, functional
verification tests, and an independent safety review, if required
• Locking the safety application
• Calculating system reaction time
Topic Page
The Safety Task 102
Safety Programs 103
Safety Routines 104
Safety Tags 104
Produced/Consumed Safety Tags 109
Safety Tag Mapping 116
Safety Application Protection 118
Programming Restrictions 122
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