{VOLATILE, <value>, <value>, <value>, …}
Download floating-point values from -1.0 to +1.0 into volatile memory. You
can download from 1 to Sample
max
points per waveform.
81150A: Sample
max
= 524288 (512 k)
81160A 1 channel: Sample
max
= 262144 (256 k)
81160A 2 channels: Sample
max
= 131072 (128 k)
The instrument takes the specified number of points and expands them to
fill waveform memory. If you download less than 16 k points, a waveform
with 16 k points is automatically generated. If you download more than 16 k
points, a Sample
max
points waveform is generated.
The values -1.0 and +1.0 correspond to the peak values of the waveform (if
the offset is 0.0 volts). For example, if you set the amplitude to 10.0 Vpp
(0.0 V offset), “+1.0” corresponds to +5.0 V and “-1.0” corresponds to -5.0 V.
The maximum amplitude will be limited if the data points do not span the
full range of the output DAC (Digital-to-Analog Converter).
Downloading floating-point values (using DATA VOLATILE) is slower
than downloading binary values (using DATA:DAC VOLATILE) but is
more convenient when using trigonometric functions which return values
from -1.0 to +1.0.
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