What Are Case structures in LabVIEW?

Video: Using Case Structures in LabVIEW A Case structure has two or more subdiagrams, or cases. Only one subdiagram is visible at a time, and the structure executes only one case at a time. An input value determines which subdiagram executes.

What is the case structure?

A Case Structure is a branching control mechanism that allows different executions depending on the value of the label. The Case Structure is analogous to the Case block in Java or C++ in which, based on what case value the input variable matched, the case structure will choose the correct cases for execution.

What are the parts of a case structure?

Components of a Case Structure Selector label—Displays the value(s) for which the associated case executes. Case selector—Selects which case to execute based on the value of the input data. The input data can be a Boolean, string, integer, enumerated type or error cluster.

What is process structure?

In-process structures are formed by applying a material onto a subassembly. The material can be applied using a variety of methods including spraying, dispensing through a nozzle, and one of the coating processes discussed earlier.

Which is better LabVIEW or Matlab?

When you boil it right down, MATLAB is the best choice of programming environment for computing whilst LabVIEW is best for instrumental control, data acquisition and automated tests. LabView is the better choice of the two for test automation and the acquisition, processing and presentation of data.

Is LabVIEW hard to learn?

If you’re using LabVIEW, you’re probably interfacing to hardware of some type. This can get really challenging with complex instruments and measurements. If you’re getting started, I would recommend making sure that you have unlimited access to at least some of the hardware you’ll be working with.

How to change the case structure in LabVIEW?

By default the Case Structure does a case sensitive match. This behavior can be changed by using the Case Insensitive Match option from the right-click menu. From LabVIEW 2015 onward, the Case Structure shows ” A=a ” at the bottom left corner if Case Insensitive Match is enabled.

How does the execution structure work in LabVIEW?

If you wire a floating-point value to the case, LabVIEW rounds the value to the nearest integer. If you type a floating-point value in the case selector label, the value appears red to indicate that you must delete or edit the value before the structure can execute.

What can you do with CAS structures in LabVIEW?

You can add infinite number of conditions in your code and can easily execute selective statements of your code using cas structures in LabView. Let’s design a simple VI to explain the working of case structures in depth.

How are enums used in case structures in LabVIEW?

Therefore, LabVIEW coerces all of them to a numeric type and makes the Case Structure expect just numeric values. When developing state machines, or Case Structures that will input enums, consider making a Type Definition for your enum, so you don’t have to modify all the constants manually when making a change.