MDO3000 Programmer Manual.pdf - 第324页

Commands Listed in A lphabetical Order Examples DISPLAY:PERSI STENCE 3 specifies that the waveform points are displayed fading for 3 seconds before they completely disappear . DISplay:STYle:DOT sonly This command turns on…

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Commands Listed in Alphabetical Order
Group
Display
Syntax
DISplay:INTENSITy:WAVEform <NR1>
DISplay:INTENSITy:WAVEform?
Arguments
<NR1> is the waveform intensity and ranges from 1 to 100 percent.
Examples
DISPLAY:INTENSITY:WAVEFORM? might return
DISPLAY:INTEnsITY:WAVEFORM 60
as the intensity of the waveforms.
DISplay:PERSistence
This command specifies the display persistence for analog waveforms. This
affects the display only.
Group
Display
Syntax
DISplay:PERSistence {<NR3>|CLEAR|AUTO|INFInite|OFF}
DISplay:PERSistence?
Arguments
<NR3> is a floating point number that specifies the time of the persistence.
CLEAR resets the persist time count down and clears the display of acquired points.
INFInite displays waveform points until a control change resets the acquisition
system.
NOTE. When persistence is set to infinite, it does not mean that the b rightness
of any pixel should never decrease. The brightness of a pixel is proportionally
dependent on the r atio between its intensity, which does NOT decrease at infinite
persistence, and the maximum v alue of intensity of any pixel on the screen. Thus,
if a particular pixel gets hit less often than others, its brightness will decrease
over time. It will become less bright relative to the pixels that get hit more often.
AUTO specifies that the oscilloscope automatically determines the
best waveform persistence based on the value of waveform intensity
(DISplay:INTENSITy:WAVEform)
OFF turnsoffDPOmode(0secondsofpersistence).
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-293
Commands Listed in Alphabetical Order
Examples
DISPLAY:PERSI
STENCE 3
specifies that the waveform points are displayed
fading for 3 seconds before they completely disappear.
DISplay:STYle:DOTsonly
This command turns on or off the dots-only mode for the waveforms displayed in
the time domain.
Group
Display
Syntax
DISplay:STYle:DOTsonly {ON|OFF|<NR1>}
DISplay:STYle:DOTsonly?
Arguments
ON or <NR1> ≠ 0 turns on the dots-only display.
OFF or <N R1> = 0 turns off the dots-only display.
DISplay:TRIGFrequency
This command switches the trigger frequency readout on or off.
Group
Display
Syntax
DISplay:TRIGFrequency {OFF|ON|0|1}
DISplay:TRIGFrequency?
Related Commands
TRIGger:FREQuency?
Examples
DISplay:TRIGFrequency ON turns the trigger frequency read out on.
DISplay:TRIGFrequency? might return 0, indicating that the trigger frequency
readout is turned off.
DISplay:XY
This command turns on or off the XY display mode.
Group
Display
2-294 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
Syntax
DISplay:XY {OF
F|TRIGgered}
DISplay:XY?
Related Commands
All CURSOR:XY commands.
Arguments
OFF – The channels are displayed indivi
dually as a function of time.
TRIGgered – The channels are displayed in “X-Y” pairs with CH1 being
displayed as a function of CH2, and so o
n.
Examples
DISplay:XY TRIG specifies to use the XY display mode.
DISPLAY:XY? might return OFF, indicating that the XY disp
lay mode is not
currently on.
DISplay:XY:WITHYT
Sets or returns the state of simultaneous display of the XY and YT waveforms
when in TRIGgered XY display mode. (To set the mode to TRIGgered XY
display, first use the command
:DISplay:XY TRIGgered.)
When both the XY and YT waveforms are displayed, the YT waveform is
displayed in the upper graticule, and the XY waveform is displayed in the lower
graticule.
This command applies to the MDO3000 and MDO4000C series only. For this
platform, the default state is 0 (XY display only)
.
For the DPO/MSO4000B and MDO4000/B platforms, this command is ignored
and the state is always 1 (to display both the XY an
d YT waveforms when in
XY display mode).
NOTE. For models with the DVM feature, such as the MDO3000 and MDO4000C,
this command does not take effect if the :DVM:DISPLAYSTYle is set to FULl,
but will take effect once the :DVM:DISPLAYSTYle is set to MINimum or if the
DVM is turned off.
Group
Display
Syntax
DISplay:XY:WITHYT {0|1|OFF|ON}
DISplay:XY:WITHYT?
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-295