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Chapter 4 Remote Interface Reference
Arbitrary Waveform Commands (Option 002)
4
Arbitrary Waveform Commands
*OPT?
Query whether optional arbitrary waveforms are currently enabled.
Returns “002” if arbitrary waveforms are enabled. Returns “0” if
arbitrary waveforms are not enabled.
Note: To upgrade your 33210A arbitrary waveform functionality (Option
002), go to www.keysight.com/find/ 33210U.
DATA VOLATILE, <
value
>, <
value
>, . . .
Download floating-point values from -1 to +1 into volatile memory.
You can download from 1 to 8,192 (8K) points per waveform.
The function generator takes the specified number of points and expands
them to fill waveform memory.
• The values -1 and +1 correspond to the peak values of the waveform
(if the offset is 0 volts). For example, if you set the amplitude to
10 Vpp (0V offset), “+1” corresponds to +5V and “-1” corresponds to -5V.
• The maximum amplitude will be limited if the data points do not
span the full range of the output DAC (Digital-to-Analog Converter).
For example, the built-in “Sinc” waveform does not use the full range
of values between ±1 and therefore its maximum amplitude is
6.087 Vpp (into 50 ohms).
• 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 to +1.
• The DATA command overwrites the previous waveform in
volatile
memory (and no error will be generated). Use the
DATA:COPY
command to copy the waveform to
non-volatile
memory.
• Up to four user-defined waveforms can be stored in non-volatile
memory. Use the DATA:DEL command to delete the waveform in
volatile memory or any of the four user-defined waveforms in non-
volatile memory. Use the DATA:CAT? command to list all waveforms
currently stored in volatile and non-volatile memory (as well as the
five built-in waveforms).
• After downloading the waveform data to memory, use the FUNC:USER
command to choose the active waveform and the
FUNC USER
command
33210A users guide.book Page 224 Wednesday, July 16, 2008 11:16 AM
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