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Cluster Scaling VI

Module by: National Instruments

Summary: Build a VI that uses polymorphism with clusters.

Exercise 1

Complete the following steps to build a VI that scales values stored in a cluster, where each cluster element has a different scale factor. Assume that the voltages were measured from transducers that measure the pressure, flow rate, and temperature. The VI then scales these values to get the actual values present in the system.

1.a) Front Panel

  1. Open the Cluster Scaling VI located in the C:\Exercises\LabVIEW Basics I directory. The front panel is already built.
  2. Change the controls as shown in Figure 1.
    Figure 1
    Figure 1 (clusscal.png)

1.b) Block Diagram

  1. Build the block diagram shown in Figure 2. Make sure you apply the correct scale factors to each element in the Raw Data cluster.
    Figure 2
    Figure 2 (clusscalbd.png)
  2. Save the VI.
  3. Display the front panel and run the VI.
  4. Change the front panel controls and run the VI again.
  5. Close the VI when you are finished.

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