How do you execute a SubVI in LabVIEW?

To execute a SubVI in LabVIEW, it is essential to call it using a function block within the block diagram of the main VI. This approach allows the SubVI to be integrated seamlessly into the program's flow. When you create a SubVI, it functions like any other function in programming; it needs to be invoked to perform its intended tasks.

When you place a SubVI on the block diagram, you connect its terminals to other elements as needed, ensuring that data can be passed into and out of the SubVI, which allows for modular and organized code. This method emphasizes LabVIEW's graphical programming paradigm, where visual representation helps clarify how different parts of the program interact.

The other options do not accurately describe how to execute a SubVI. For instance, connecting a SubVI directly to the user interface would not allow for programmatic execution, as the user interface primarily serves to facilitate interaction rather than control execution logic. Similarly, scripting a SubVI in the scripting palette is more about defining program behavior rather than executing it. Lastly, manually compiling a SubVI before execution is unnecessary, as LabVIEW handles the compilation automatically when the VI is run. Thus, calling the SubVI with a proper function block is the correct and most effective