Rockwell Automation 20D-DL2-CKS1 Import/Export Project Components - Manual (Page 30)

Chapter 1 Import and export logic components
Icons in the Differences column ( ) on the Import Configuration dialog box
show whether components collide with differences, or the component only exists
in the import file or the project.
Click the icon in the Details column ( ) and a Collision dialog box opens
showing the differences between the import component and the colliding project
component. Use the information in the Collision dialog box to determine
whether to overwrite or use the existing component.
For components that do not collide, click the same icon for more information on
the component.
Tip: A referenced component that collides with an existing component defaults to using the project component
(Operation is Use Existing), even if the definitions of the components are different. To import the referenced
component definition from the import file, Overwrite must be selected.
Connecting a referenced component to a component of the same type, but with
another name in the project, causes any reference to the component in the
imported logic to be updated to the new name. For example, if you connect a
Boolean reference tag A to B[3].ACCUM.4 (where B is an existing tag in the
project that is an array of structures), then all references in the imported logic that
used to say A now say B[3].ACCUM.4. Another way to connect reference tags to
existing tags in the project is to modify their Alias For box. This is permitted
when the reference tag is being created or the reference tag is overwriting an
existing tag (offline only), regardless of whether it was originally an alias tag. The
Import Configuration dialog box lets you configure the references that you must
connect during the import process.
Important: It is important to note that even if a component has an Operation of Discard, Use Existing, or
Undefined, if the Final Name differs from the Import Name, then the imported logic references to that
component are updated to reflect the Final Name. For example, if you enter an invalid name as the Final
Name for a tag reference, the Operation is set to Discard but the imported logic references to that tag are
still updated to the invalid Final Name.
30 Rockwell Automation Publication 1756-PM019E-EN-E - October 2014