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  • This module is included in aLens by: National InstrumentsAs a part of collection:"LabVIEW Graphical Programming Course"

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    "A full introductory course on programming with LabVIEW."

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Summary, Tips, and Tricks on Modular Programming

Module by: National Instruments

  • A VI within another VI is called a subVI. Using subVIs helps you manage changes and debug the block diagram quickly.
  • After you build a VI front panel and block diagram, build the icon and the connector pane so you can use the VI as a subVI.
  • The connector pane is a set of terminals that corresponds to the controls and indicators of that VI. Define connections by assigning a front panel control or indicator to each of the connector pane terminals.
  • Create custom icons to replace the default icon by double-clicking the icon in the upper right corner of the front panel to open the Icon Editor.
  • In the Icon Editor dialog box, double-click the Text tool to select a different font.
  • You can designate which inputs and outputs are required, recommended, and optional to prevent users from forgetting to wire subVI connections. Right-click a terminal in the connector pane and select This Connection Is from the shortcut menu.
  • Document a VI by selecting File>>VI Properties and selecting Documentation from the Category pull-down menu. When you move the cursor over a VI icon, the Context Help window displays this description and indicates which terminals are required, recommended, or optional.
  • Add descriptions and tip strips to controls and indicators by right-clicking them and selecting Description and Tip from the shortcut menu. When you move the cursor over controls and indicators, the Context Help window displays this description.
  • Convert a section of a VI into a subVI by using the Positioning tool to select the section of the block diagram you want to reuse and selecting Edit>>Create SubVI.

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