Changing Scale Limits on Slide and Rotary Controls

The outer two markers on slide and rotary controls or indicators are the scale limits. You can adjust the scale limits and the markers between them; LabVIEW updates the increments accordingly.

Scale limits do not have to match range limits: scale limits can be a subset of the range of the control or indicator. For example, the default range of a 16-bit signed integer control or indicator is –32,768 to 32,767. However, you can set the data range to –1,000 to 1,000 and then set the scale limits to 0 and 500.

To change scale limits and increments, complete the following steps.

  1. Use the Operating tool or the Labeling tool to click the upper or lower limit on the scale of the slide or rotary object.
  2. Highlight the digits you want to change and type the new number.
  3. Apply the new limit: press the Enter key, click the Enter button on the toolbar, or click outside the scale to enter the new value.
    The other limit stays the same and LabVIEW recalculates the increment automatically.
  4. To change the value of an intermediate marker on the scale, repeat steps 1 through 3.
    LabVIEW adjusts the increments of the scale automatically.
    If the increments of the scale do not adjust automatically, the intermediate marker is too close to another marker, so you need to increase the size of the slide or rotary object before you change the value of the intermediate marker.

You can also change scale limits and increments programmatically with the Range properties.