Rockwell Automation 9399 A.I. SERIES INSTALLATION GUIDE - Manual (Page 14)

Installation/Update Procedure
1-11
Updating A.I. Series Software
Software updates consist of a complete set of distribution disks, without the master
disks. You can discard the distribution disks from the previous version, but retain any
disks labeled “MASTER.” Master disks are not version specific, and will remain in
use for the life of the product.
!
Executable files access one or more common files. Updating the online OR offline
modules replaces these common files with the newer version. If the online and
offline modules reside in the same directories, make sure to update both modules
to the new version. Running the software from a directory that contains mixed
revisions will yield unpredictable results.
If you receive an update that does not include both modules, you can install and
run the one module in a separate directory until the update for the other module
arrives.
Use the Setup program to update files on your hard disk.
Note Program configuration, system security, and printer driver files are not overwritten by
the update function. If you want these files updated, delete them from the destination
directory before updating. (These filenames end with .CFG, .SCY, and .PDL
respectively.)
Note Pressing the [Esc] key at any time during the update aborts the program and returns
you to the DOS prompt (after confirmation).