42 Rockwell Automation Publication 5094-UM001C-EN-P - April 2019
Chapter 1 Digital I/O Module Operation in a Logix 5000 Control System
Configuration Signature and Ownership
Every FLEX 5000 I/O safety module in a system has a configuration signature
and configuration ownership.
Configuration Signature
Each safety device has a unique configuration signature that defines the module
configuration. The configuration signature includes the following:
•ID number
•Date
•Time
The configuration signature is used to verify a module’s configuration.
Configuration Ownership
The connection between the owner-controller and the FLEX 5000 I/O safety
module is based on the following:
• FLEX 5000 I/O safety module node number
• FLEX 5000 I/O safety module safety network number
• Controller node or slot number
• Controller safety network number
• Path from the controller to the FLEX 5000 I/O safety module
• Configuration signature
If any differences are detected, the connection between the owner-controller and
the FLEX 5000 I/O safety module is lost, the yellow yield icon appears in the
controller project tree.
IMPORTANT The signature can only be considered “verified” (and configuration locked)
after user testing.
IMPORTANT If the owner-controller is a Compact GuardLogix 5380 controller,
the controller has a node number.
If the owner-controller is a GuardLogix 5580 controller,
the controller has a slot number.
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