Restore Device

(AX-3.2 and later only) This button in the Bacnet Ws Device Manager allows you to restore a previous backup to the selected device, where a backup is one or more “restorable” files saved on the BACnet Supervisor PC. See Backup Device.

The target device must support the BACnet DM-BR-B BIBB, as part of the B-BC device profile conformance. In addition, you may require a device password to have it initiate a backup or a restore. Otherwise, a backup or restore job will immediately fail, showing the associated reason in the job log details. For example, you may see “Unrecognized Service” or “Security: Password Failure”.

When you click Restore, the standard Directory Chooser appears, in which you navigate to the directory that contains the backup file(s), as shown in Figure B.12.

Figure B.12. Directory Chooser dialog to specify directory with backup file(s)

After you choose the source directory, the Restore Device dialog appears, as shown in Figure B.13.

Figure B.13. Restore Device configuration dialog

Configuration fields in this dialog include the following:

Directory

Reflects the ord for the local source directory, as previously chosen in the Directory Chooser. If needed, you can modify it using file ord syntax.
Password

Some devices may require a password to initiate a backup and/or a restore. If a device requires a password, you may enter it here.

When you click OK, the restore backup request is sent to the device. A Restore job is started, and as shown in Figure B.14 you can click on the job log control near the top of the manager to see the job progress.

Figure B.14. Restore job started, Job Log details dialog

When the job completes, it will post a success or failed status. Successful restores will install the backup file(s) found in the source directory, and typically re-initialize (reboot) the device.

An invalid restore job typically fails immediately. However, a valid restore job may take several minutes to complete, depending on the implementation in the target BACnet device. Typically, the device executes some “preparation routine” first, before accepting the backup files. In the case of AX-3.2 or later stations running the Bacnet driver, there is a set routine as well as associated properties, found in the LocalBacnetDevice of the BacnetNetwork. For details, see Local Device backup and restore properties.