Rockwell Automation 1756-L7x GuardLogix 5570 Controllers - Manual (Page 134)

134 Rockwell Automation Publication 1756-UM022A-EN-P - November 2012
Appendix B Change Controller Type
• Standard controller features that are not supported by the safety controller,
such as redundancy, are removed from the Controller Properties dialog
box (if they existed).
Changing from a Safety to a
Standard Controller Upon confirmation of a change from a safety controller project to a standard
controller, some components are changed and others are deleted, as described
below:
• The safety partner is deleted from the I/O chassis.
• Safety I/O modules and their tags are deleted.
• The safety task, programs, and routines are changed to a standard task,
programs, and routines.
• All safety tags, except safety consume tags, are changed to standard tags.
Safety consume tags are deleted.
• Safety tag mappings are deleted.
• The safety network number (SNN) is deleted.
• Safety-lock and -unlock passwords are deleted.
• If the standard controller supports features that were not available to the
safety controller, those new features are visible in the Controller Properties
dialog box.
• Instructions may still reference modules that have been deleted and will
produce verification errors.
• Consumed tags are deleted when the producing module is deleted.
• As a result of the above changes to the system, safety-specific instructions
and safety I/O tags will not verify.
If the safety controller project contains safety Add-On Instructions, you must
remove them from the project or change their class to standard before changing
the controller type.
Changing Safety Controller
Types
When you change from one safety controller type to another, the class of tags,
routines, and programs remains unaltered. Any I/O modules that are no longer
compatible with the target controller are deleted.
The representation of the safety partner is updated to appear appropriately for
the target controller:
TIP Peer safety controllers are not deleted, even if they have no
connections remaining.
IMPORTANT 1768 Compact GuardLogix controllers and GuardLogix 5560 controllers are not
supported in the Logix Designer application, version 21.