Table Of Contents
DAQmx Read (Analog » Waveform » Time) (G Dataflow)
Reads a waveform from a task that contains a single analog input channel. You must specify the duration, in seconds, for the waveform.
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task in
task in is the name of the task that the operation applies.
error in
error in describes error conditions that occur before this node runs. This input provides standard 'error in' functionality.
duration
duration specifies the amount of time in seconds to read samples.
timeout
timeout specifies the amount of time in seconds to wait for samples to become available. If the time elapses, the node returns an error and any samples read before the timeout elapsed. The default timeout is 10 seconds. If you set timeout to -1, the node waits indefinitely.
If you set timeout to 0, the node tries once to read the requested samples and returns an error if it is unable to.
task out
task out is a reference to the task after this node runs.
data
data returns a waveform.
NI-DAQmx scales the data to the units of the measurement, including any custom scaling you apply to the channels. Use the DAQmx Create Virtual Channel node or the DAQ Assistant to specify these units.
error out
error out contains error information. If error in indicates that an error occurred before this node ran, error out contains the same error information. Otherwise, error out describes the error status that this node produces.
Where This Node Can Run:
Desktop OS: Windows
FPGA: LabVIEW NXG does not support FPGA devices
Web Server: Not supported in VIs that run in a web application