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LabVIEW 基礎課程 ( 三 A)

LabVIEW 基礎課程 ( 三 A). CH 9 字串和文件 IO. Using String Functions(1). Using String Functions(2). Using String Functions(3). 練習 9-1: String Construction. Parsing Functions. Special Characters Used by the Match Pattern Function. 檔案存取. 練習 9-3: Writing to a Spreadsheet File.

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LabVIEW 基礎課程 ( 三 A)

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  1. LabVIEW基礎課程(三A)

  2. CH9 字串和文件IO

  3. Using String Functions(1)

  4. Using String Functions(2)

  5. Using String Functions(3)

  6. 練習9-1: String Construction

  7. Parsing Functions

  8. Special Characters Used by the Match Pattern Function

  9. 檔案存取

  10. 練習9-3: Writing to a Spreadsheet File

  11. 練習9-4: Reading from the Spreadsheet File

  12. 其他檔案功能

  13. Event & State Machine

  14. User Actions on the Front Panel Block Diagram Execution Why use Events? Synchronize

  15. The Event Structure • Examples of User Interface (Static) Events • Pressing a button on the mouse • Pressing a key on the keyboard • Value (Signaling) Property can generate a programmatic event

  16. Parts of an Event Structure • Event Selector Label — identifies event case viewed • Timeout— value in ms to wait for events; default value is –1 (indefinite) • Dynamic Event Terminals — used for dynamic event registration • Default Tunnel Values —new type of tunnel which allows unwired cases to provide default values

  17. Parts of an Event Structure (continued) • Event Data Node — identifies the data LabVIEW provides when the event occurs; similar to the Unbundle By Name function • Event Filter Node — identifies the subset of data available in the Event Data Node that the event case can modify

  18. Event Structure Basic Usage • Normally used in a While Loop • Sleeps and handles exactly one event per iteration • Event Data available in terminals on structure’s left border • Can right-click on Event Data and show only the terminals you need

  19. Event Structure Configuration • Use a dialog box to configure events byright-clicking the Event structure border and selecting Edit Events Handled by This Case from the shortcut menu

  20. Edit Events Dialog 1 • Configured Events • Event Sources • Events 2 3

  21. Event Demo

  22. State Machine in LabVIEW

  23. Excise

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