Technical data

630 Agilent InfiniiVision 6000 Series Oscilloscopes Programmer's Guide
5 Commands by Subsystem
Introduction to
:WAVeform
Commands
The WAVeform subsystem is used to transfer data to a controller from the
oscilloscope waveform memories. The queries in this subsystem will only
operate when the channel selected by :WAVeform:SOURce is on.
Waveform Data and Preamble
The waveform record is actually contained in two portions: the preamble
and waveform data. The waveform record must be read from the
oscilloscope by the controller using two separate commands,
:WAVeform:DATA (see page 638) and :WAVeform:PREamble (see page 645).
The waveform data is the actual data acquired for each point in the
specified source. The preamble contains the information for interpreting
the waveform data, which includes the number of points acquired, the
format of acquired data, and the type of acquired data. The preamble also
contains the X and Y increments, origins, and references for the acquired
data, so that word and byte data can be translated to time and voltage
values.
Data Acquisition Types
There are four types of waveform acquisitions that can be selected for
analog channels with the :ACQuire:TYPE command (see page 208):
NORMal, AVERage, PEAK, and HRESolution. Digital channels are always
n/a :WAVeform:XINCrement?
(see page 658)
<return_value> ::= x-increment
in the current preamble in NR3
format
n/a :WAVeform:XORigin?
(see page 659)
<return_value> ::= x-origin
value in the current preamble in
NR3 format
n/a :WAVeform:XREFerence?
(see page 660)
<return_value> ::= 0
(x-reference value in the current
preamble in NR1 format)
n/a :WAVeform:YINCrement?
(see page 661)
<return_value> ::= y-increment
value in the current preamble in
NR3 format
n/a :WAVeform:YORigin?
(see page 662)
<return_value> ::= y-origin in
the current preamble in NR3
format
n/a :WAVeform:YREFerence?
(see page 663)
<return_value> ::= y-reference
value in the current preamble in
NR1 format
Table 94 :WAVeform Commands Summary (continued)
Command Query Options and Query Returns