About the offline point discovery feature

Beginning in NiagaraAX 3.7 enabled for Sedona Framework TXS-1.2, you can perform point discovery on SedonaDevices in an “offline” mode. This allows you to engineer your SedonaNetwork without having to be directly connected to the network of Sedona devices. You can create your station database while sitting in your office, provided you have the app files that are installed in the devices.

This is a simple feature to use. You can use it while editing the station in offline mode, or while connected to a running station. Navigate to the Point Manager view of the SedonaDevice for which you wish to discover points. Click the Discover button to initiate point discovery.

NotePerforming offline point discovery requires that the device be associated with a Sedona app. If the device is not associated with a Sedona app, an error message will appear in the Configure Point Discovery dialog box. If this occurs, cancel the operation and edit the device to associate it with an app.

At this point, rather than initiating a Sox connection to the device to begin the point discovery, Niagara displays the Configure Point Discovery dialog box. You can choose to perform either “Online” point discovery or “From App” (offline) point discovery, as shown in Figure 11.

Figure 11. Point discovery configuration dialog box


Point discovery configuration dialog box


If the station has connectivity, to either a physical device or a simulated device, you can perform the usual direct point discovery by selecting the Online option.

If you wish to perform offline point discovery against a particular app file, select the From App option. Click the directory icon to the right of the App File Ord field to select the app file using the ord chooser, or simply type the app file ord manually.

NoteWhen indicating the app file ord for offline point discovery, the file type must be either an XML app file (.SAX) or a binary app file (.SAB). You must use Niagara ord syntax, not Windows file system syntax, for the filename, for example, local:│file:!sedona/store/apps/<appFileName>. In this example, <appFileName> represents your actual app file name.

Once you click OK, the discovery process is identical whether using the Online or From App option. You will be presented with the components in the app to allow you to pick points to proxy. If you are not connected to the device at the time, the points will not be able to retrieve values.