The NAE operating system, Metasys system software, NAE archive database, and recent NAE operation data reside on the NAE disk image.
To update the NAE Metasys system software, use SCT Pro or the NAE Update Tool. Refer to SCT Pro Help (LIT-12013035) and NAE Update Tool Help (LIT-12011524) . For some Metasys releases, the NAE Update Tool is required to update the disk image. If you have a custom integration built by the Johnson Controls Systems Integration Services (SIS) group, you must first back up the protocol DLL and license files with the NIEx9 Driver Manager tool before you update the disk image. If you skip that step, you are not able to restore the DLL and license files to the NAE after you update the engine. Refer to the NIEx9 Driver Manager Application Note (LIT-12011919) . This DLL backup step is not necessary if you are using any of the several pre-configured integrations (Modbus, M-Bus, KNX, C•CURE/victor, Zettler, and OPC UA).
When you update an NAE to a new version of the disk image to the latest release version of the Metasys system software, you must also upgrade the NAE archive database to a new release database. For an overview of the upgrade process, refer to the SCT Installation and Upgrade Instructions (LIT-12012067) .