09-21-2006 06:18 AM
09-21-2006 06:38 AM
An XControl is a front panel control which you create yourself and which you can add code to to make it more intelligent and have more capabilites.
A subVI is similar to a subroutine or a function in other languages - it is a piece of code which has parameters and outputs and which is represented on the diagram by a single icon in the same way that functions in text based languages are represented by their name.
XControls are a rather advanced topic, but SubVIs are one of the most basic concept in LV. You can find examples for both in the example finder (Help>>Find Examples).
To learn more about LabVIEW, I suggest you try searching this site and google for LabVIEW tutorials. Here, here, here and here are a few you can start with and here are some tutorial videos. You can also contact your local NI office and join one of their courses.
In addition, I suggest you read the LabVIEW style guide and the LabVIEW user manual (Help>>Search the LabVIEW Bookshelf).
09-21-2006 06:44 AM