122 Rockwell Automation Publication 1756-UM022D-EN-P - May 2017
Chapter 6 Develop Safety Applications
Copy the Safety Task Signature
You can use the Copy button to create a record of the safety task signature for
use in safety project documentation, comparison, and validation. Click Copy,
to copy the ID, Date, and Time components to the Windows clipboard.
Delete the Safety Task Signature
Click Delete to delete the safety task signature. The safety task signature
cannot be deleted when the following is true:
• The controller is safety-locked.
• The controller is in Run mode with the key switch in RUN.
• The controller is in Run or Remote Run mode with run mode
protection enabled.
Programming Restrictions
Restrictions limiting the availability of some menu items and features (that is,
cut, paste, delete, search and replace) are imposed by the Logix Designer
application to protect safety components from being modified whenever the
following is true:
• The controller is safety-locked.
• A safety task signature exists.
• Safety faults are present.
• Safety status is as follows:
–Partner missing
– Partner unavailable
– Hardware incompatible
– Firmware incompatible
ATTENTION: If you delete the safety task signature, you must retest and
revalidate your system to meet SIL 3/PLe.
Refer to the GuardLogix 5570 and Compact GuardLogix 5370 Controller
Systems Safety Reference Manual, publication
1756-RM099, for more
information on SIL 3/PLe requirements.
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