Rockwell Automation 9323-S5500D A.I. SERIES MICROLOGIX 1000 AND PLC-500 SOFTW - Manual (Page 326)

Utility Options for Database Maintenance
14-5
Update Database to Current Revision
Sometimes a new revision of the PLC-500 A.I. software requires a change in the
database format. When this happens, a message will appear when you run the online or
offline editor, informing you that you must update your existing databases to the current
format.
To update the databases, press [F3] Update Data Bases to Revision: v8.xx on the
Utility Options menu.