Writes latest value to, and reads latest value from, a linked LabVIEW front panel running on the same target as the engine in which the module resides.
- Build out the front panel that you wish to link to DCAF. For a monitoring only UI, no block diagram code is needed, just the front panel items with appropriate labels and data types. To show the user interface at run-time, make sure that the Show Front Panel When Called option is enabled. This can be enabled in the SubVIs properties by navigating to File>>VI Properties>>Window Appearance>>Customize and enabling the Show Front Panel When Called option.
- The UI VI should be included in the build of the application, either statically by dropping it on the block diagram, or via the build specification settings.
Choose a UI to Load by selecting the folder button and navigating to the user interface VI you wish to link to DCAF.
To automatically generate a channel for each Front Panel item, select Configure from UI. A dialog will ask whether you want to "Automatically map tags to channels?". Selecting No will create a channel for each Front Panel item which does not already exist and set each channel to the appropriate Terminal Name, Direction, and Data Type. Selecting Yes will also map each channel to a tag with the same value as the Terminal Name. If that tag does not exist within the engine already, a new one will be created.
Channels can be individually added or removed from the configuration by selecting the + and - buttons respectively. If you wish to modify an existing table item, press the gear button to configure the selected item.
Export: Export current module configuration to a CSV file. You will be prompted by a file dialog to select the name and location of this exported file.
Import: Select CSV file to import. This will completely replace the current channel configuration which means the current configuration will be lost.
- Requires each mapped control/indicator to have a unique label. Note that you can give each control/indicator a unique label and have different displayed captions.
- Does not support cluster data types
- Does not support subpanels directly (a UI Reference Module for each running subpanel VI would need to be instantiated)
- Requires Embedded UI to be enabled for use on LinuxRT targets. Lack of an enabled embedded UI will result in runtime errors.
- Latest value only - no event-based interface. All values are read and written every time the engine iterates, regardless of whether they have changed or not.
LabVIEW 2014 or later