Tektronix 2230 Operator's Manual

Options and Accessories-2230 Operators
Table 7-30 (cont)
Commands
Description
ALL
WFMpre PT.Fmt:<Y, XY, Point format defines how to interpret the curve data points.
or ENV>
Y format means that X-axis information is derived from the waveform preamble
and not sent explicitly. The data values represent the vertical amplitude of the
waveform at that data point position.
XY format means that the data points are in X- Y pairs, with X first.
ENV format means that the vertical data is sent in max-min pairs. The data is
sent in the form:
.... ,y1 max,y1 min,y2max,y2min, ..
However, the max-min data is displayed in the reverse order, with min data first
then max data ( ... ,y1 min,y1 max,y2min,y2max, ... ).
ENV is valid for PEAkdet and ACCpeak acquisition modes with SMOoth OFF.
ALL
WFMpre XU Nits: <S or CLKs> Gives the units value for the XINcr. If XUN is S the X-increment is in seconds; if
in CLK, the X-increment is unknown. (CLK is returned when the SEC/DIV setting
is EXT CLK.)
ALL
WFMpre XINcr:<NR3> The XINcr <NR3> value is the time between data points. If XINcr for a
waveform being sent to the oscilloscope does not correspond to a legitimate
SEC/DIV setting, the new curve data is not accepted, and a command argument
error service request is sent (if ROS is ON). The queried XINcr value of <NR3>
--
is set equal to 1 (0.1E+0) if it is unknown, as is the case for EXT CLK.
ALL
WFMpre YU Nits: <V or DIVs>
Indicates the units of YMUlt. When the CAL knob of the DATa CHAnnel is not in
the detent position, the DIVs argument is returned. DIVs is always returned for
the 2220 since the vertical scaling is unknown.
ALL
WFMpre YMUlt: <NR3> The YMUlt <NR3> value is the step size of the digitizer (volts between digitizer
levels). I the YMUlt for a waveform being sent to the oscilloscope does not
correspond to a legitimate VOL TS/DIV setting, the new curve data is not
accepted, and waveform preamble error service request is sent (if ROS is ON).
The queried YMUlt value of <NR3> is 40.0E-3 when the VOL TS/DIV CAL knob
for the DATa source is not in the detent position.
ALL
WFMpre YOFf: <NR1 > The YOFf <NR1 > value is the Y coordinate of ground. If ground level is not
known, the value of -10000 is returned.
ALL
WFMpre XMUlt XMUlt and XOFf are similar to YMUlt and WFMpre XOFf YOFf. They are added
to the waveform preamble for XY waveforms. For all XY waveforms, the YUNits
value is valid for both the X and the Y data points. The value of XUNits is
referenced to the sampling rate.
7-42

Tektronix 2230 Specifications

General

Brand	Tektronix
Model	2230
Category	Test Equipment
Language	English