26 Rockwell Automation Publication 843ES-UM001A-EN-P - February 2020
Chapter 2 Safety Concept
Configuration Ownership
The connection between the owner-controller and the 843ES CIP Safety
encoder is based on the following:
• 843ES CIP Safety encoder node number
• 843ES CIP Safety encoder safety network number
• Controller node or slot number
• Controller safety network number
• Path from the controller to the 843ES CIP Safety encoder
• Configuration signature
If any differences are detected, the connection between the owner-controller and
the 843ES CIP Safety encoder is lost, the yellow yield icon appears in the
controller project tree.
Reset an 843ES CIP Safety Encoder to Out-of-Box State
If an 843ES CIP Safety encoder was used previously, you must clear the
configuration ownership before you can install it on a safety network. That is,
you must return the module configuration to its out-of-box state.
When an 843ES CIP Safety encoder is in the out-of-box state, a controller does
not own its configuration.
The Safety category on the Module Properties dialog box displays the module
Configuration Ownership. The Logix Designer application project must be
online to check.
If the module configuration is owned, the Safety category displays whether the
controller for the opened project owns the module configuration or another
controller owns it.
For information on how to reset the module in the Logix Designer application,
see Reset to Out-of-Box Configuration
on page 58.
You cannot reset the module to its out-of-box configuration if any of the
following conditions exist:
• There are pending edits to the module properties.
• When a safety signature exists in the controller project.
You use the Studio 5000 Logix Designer application to configure the encoder.
IMPORTANT If the owner-controller is a GuardLogix 5580 controller, the controller has a slot
number.
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