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Chapter 30
Debugging Techniques
Using the Probe Tool
If your VI is producing questionable results, you may want to use the Probe
tool to check intermediate values in a VI. The Probe tool helps you find
where the incorrect results are occurring. Refer to Chapter 2, Creating VIs,
in the LabVIEW User Manual and Chapter 4, Executing and Debugging VIs
and SubVIs, in the G Programming Reference Manual for more
information on using the probe.
Setting Breakpoints and Showing Advanced DAQ VIs
Once you have narrowed down the location of an error to a subVI,
you can set a breakpoint on that subVI to cause VI execution to pause
before executing the subVI. You can now see what values get passed
in or are generated by the Advanced VIs, single-step through the subVI’s
execution, probe wires to see data, or change values of front panel
controls. Refer to Chapter 2, Creating VIs, in the LabVIEW User Manual
and Chapter 4, Executing and Debugging VIs and SubVIs, in the
G Programming Reference Manual for more information on how to set
a breakpoint.
LabVIEW Data Acquisition Basics Manual
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