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SCPI Commands for the Digital to Analog Converter
3–186
VX4101A MultiPaq Instrument User Manual
NOTE. The VX4101A will round the TRACe:RFRequency, TRACe:RPER and
TRACe:SRATe values off to the nearest values supported by the VX4101A
hardware. The rates are rounded to 240000/n, where n is an integer. The period
is rounded to n/240000 where n is an integer. The queries for these commands
will return actual programmed values.
NOTE. The number of points multiplied by the sample period (or 1/sample rate)
must be less than 16 seconds. If the number of points is more than 16 seconds,
the instrument returns an error.
TRACe:SRATe?
Returns the current waveform data sample rate.
TRACe:CLEAR
Command Response
TRAC:CLE Zeroes all samples for all eight DAC channels.
TRACe | DATA [:DATA] <Channel >,<Index>{<ASCII Trace Voltages|BINary Indefinite
Block Trace Voltages}
TRACe|DATA[:DATA] <Channel>,<Numeric List of Indices>{,<ASCII Trace Voltages>
Command Response
DATA 1,10,1.0,2.0,3.0,
4.0,5.0
Fills the DAC channel one with five data values, 1-5, starting at
index 10
Other memory locations are not modified.
TRAC 2,5,6.0,7.0 Fills DAC channel two with 2 values, 6 & 7, starting at index 5.
The others values in the DAC are not modified.
TRAC 8,
(1:10,64, 235:418), 5.0
Fills the following DAC channel 8 memory locations 1 through
10, location 64 and locations 235 through 418 all with 5.0 volts.
Other memory locations are not modified
DATA? 1,(1:1000) Request the voltages values in DAC 1 from index 1 through
location 1000
TRAC 3,1
(#xxxxxxxxxxxxxxxx<new-
line><endbit>)
Fills DAC channel three in memory locations 1-8 with binary
data. Where xxxxxxxxxxxxxxxx is binary data.
Examples