When you graph certain data types, LabVIEW can automatically format different features of the graph. You can also override this dynamic formatting if desired.

For example, if you:

  • Configure the Simulate Signal Express VI to generate a sine wave and to use absolute time
  • Wire the output of the Simulate Signal Express VI to a waveform graph

The plot legend of the graph automatically updates the plot label to Sine, and the x-scale displays the time and date when you run the VI.

  • To automatically format the plot legend and x-scale time stamp for the graph, wire dynamic data or waveform data to a graph.
  • To ignore the plot legend label that the dynamic or waveform data includes, right-click the graph and select Ignore Attributes from the shortcut menu.
    Selecting Ignore Attributes allows you to change the plot legend label programmatically.
  • To ignore the time stamp configuration that the dynamic or waveform data includes, right-click the graph and select Ignore Time Stamp from the shortcut menu.
    Note If the data you display in the graph contains a time stamp formatted for absolute time, select Ignore Time Stamp to ignore the time stamp.