An
Introduction To Using LabView - Under Construction
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Start LabView. Choose
New
vi.
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We will use some of routines
that we have written previously. You will need to have the Diagram
window active. Choose Window-Show Diagram
if the diagram is not active and showing.
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Choose
Window-Show Functions Palette. The Functions
palette is shown below.
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On the Functions palette,
look for the tool that will let you choose a vi that has been saved previously.
The tool looks like this:
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Click on that tool, and
navigate to find the
ResetGPIB.vi,
and click to open. Now you can place the ResetGPIB vi on your diagram.
Position it generally to the left on your diagram.
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Using the same approach,
find the Temp1.vi
and click to open. Place it to the right of the ResetGPIB vi on your
diagram. Leave space because we are going to wrap a while loop around
the Temp1 vi.
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Now, wrap a while-loop
around the Temp1 vi. Choose the Structures
tool on the Functions palette (top left!) You will get a sub-palette
with various programming structures like for-loops. As your mouse
moves across the various objects you get a note at the top about what the
structure is. What you want is the while-loop shown below.
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Click the while-loop icon
and place a while loop on the diagram, dragging it to enclose the Temp1
vi.
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Now, the while-loop would
execute repeatedly taking temperature measurements, but they would not
be displayed. To display the measurements, make the Panel the active
window. Use
Window-Show Panel
if necessary. Place a String Indicator
on the Panel. When you switch to the Panel from the Diagram, the
Functions Palette becomes a Controls Palette. Normally, string and
path indicators are selected from a sub-palette that you access from the
rightmost button in the top row. Move the mouse over the Controls
Palette buttons until you see
String and Path,
and click.
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You still need to connect
the output of the temperature measurement to the indicator. You do
that on the Diagram,
so make the diagram the active window. There choose the wiring tool
from the Tools Palette and select the wiring tool. (It looks like
a spool of wire.) You can connect between terminals by clicking the
wiring tool at each terminal.