Chapter 11 Loops and Charts
© National Instruments Corporation 11-7 BridgeVIEW User Manual
13. Stop the VI by clicking on the vertical switch. Turning the switch
off sends the value FALSE to the loop conditional terminal and stops
the loop.
14. Scroll through the chart. Click and hold down the mouse button on
either arrow in the scrollbar.
15. Clear the display buffer and reset the chart by popping up on the chart
and choosing Data Operations»Clear Chart.
Note The display buffer default size is 1,024 points. You can increase or decrease this
buffer size by popping up on the chart and choosing Chart History Length….
Youonly can use this feature when the VI is not running.
End of Activity 11-2.

Mechanical Action of Boolean Switches

You might notice that each time you run the VI, you must turn on the
vertical switch and then click the Run button in the toolbar. With G, you
can modify the mechanical action of Boolean controls.
There are six possible choices for the mechanical action of a Boolean
control:
Switch When Pressed
Switch When Released
Switch Until Released
Latch When Pressed
Latch When Released
Latch Until Released
Below are figures depicting each of these boolean switches, as well as a
description of each of these mechanical actions.
Switch When Pressed action—Changes the control value each time you
click on the control with the Operating tool. The action is similar to that of
a ceiling light switch, and is not affected by how often the VI reads the
control.
Switch When Released action—Changes the control value only after you
release the mouse button, during a mouse click, within the graphical
boundary of the control. The action is not affected by how often the VI
reads the control. This action is similar to what happens when you click on