Programming instructions

Chapter 12 Buffering Your Way through Waveform Generation
LabVIEW Data Acquisition Basics Manual 12-6
© National Instruments Corporation
Eliminating Errors from Your
Circular-Buffered Application
If you get error number
–10843 underFlowErr
, while performing
circular-buffered output, it means your program can not write data fast
enough to the buffer to output the data at the update rate. To solve this
problem, decrease the speed of the update rate. If adjusting the update rate
does not get rid of the error in your application, increase the buffer size.
Buffered Analog Output Examples
You can find the example VIs mentioned in this chapter—Generate
N Updates, Generate Continuous Sinewave, Continuous Generation,
and Function Generator—in
labview\examples\daq\anlogout\
anlogout.llb
. Another example VI in this library you might find
helpful, Display and Output Acq’d File (scaled) VI, is shown in
Figure 12-6.
Figure 12-6.
Display and Output Acq’d File (Scaled) VI