MDO3000 Programmer Manual.pdf - 第374页
Commands Listed in A lphabetical Order MATH selects th e math waveform as the source for the histogram. REF<1–4> selects a reference waveform as the source for the histogram. The x variable can b e expressed as an …
Commands Listed in Alphabetical Order
HIStogram:MO
De
This command selects the type of histogram to create or disables the histogram
display. The query form either returns the current histogram type or that the
histogram di
splay is disabled.
Group
Histogram
Syntax
HIStogram:MODe {HORizontal|VERTical|OFF}
HIStogram:MODe?
Related Commands
HIStogram:DISplay
Arguments
HORizontal enables a horizontally positioned histogram that shows time
distribution.
VERTical enables a vertically positioned histogram that shows a voltage
distribution, or another distribution such as amperes.
OFF disables the collection of the histogram measurement.
Examples
HISTOGRAM:MODE HORIZONTAL sets the type of histogram created to horizontal,
which displays a horizontally positioned histogram that shows time distribution.
HISTOGRAM:MODE? might return :HISTOGRAM:MODE OFF, indicating that the
histogram display is disabled.
HIStogram:SOUrce
This command sets or queries which source will be compared against the
histogram box when the histogram testing is enabled.
Group
Histogram
Syntax
HIStogram:SOUrce {CH1|CH2|CH3|CH4|MATH|REF1|CH2|CH3|CH4}
HIStogram:SOUrce?
Related Commands
HIStogram:DISplay
Arguments
CH1–4> selects the analog channel waveform to use as the source for the
histogram. The x variable can be expressed as an integer ranging from 1 through 4.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-343
Commands Listed in Alphabetical Order
MATH selects th
e math waveform as the source for the histogram.
REF<1–4> selects a reference waveform as the source for the histogram. The x
variable can b
e expressed as an integer ranging from 1 through 4.
Examples
HISTOGRAM:SOURCE CH1 enables the Channel 1 waveform to be compared
against the histogram box.
HISTOGRAM:SOURCE? might return :HISTOGRAM:SOURCE CH1, indicating that
the waveform for Channel 1 is the source for the histogram.
HIStogram:STARt? (Query Only)
Returns the time (horizontal) or vertical units value (vertical) of the first bin wher
e
the histogram data starts. The HIStogram:MODe must be either
HORizontal
or VERTical for a value to be returned. If the mode is OFF, an error event is set
and nothing is returned.
If the HIStogram:MODe is
HORizontal, the value returned is the time of the left
bin. If the HIStogram:MODe is
VERTical the value returned is the vertical units
value of the top bin. The returned value is an <NR3>.
Group
Histogram
Syntax
HIStogram:STARt?
Related Commands
HIStogram:END?
HIStogram:MODe
Returns
<NR3> showing the returned value.
Examples
HISTOGRAM:START? might return :HISTOGRAM:START 2.0000E-06
indicating that the first bin is at 2 μs.
HORizontal? (Query Only)
Returns all settings for the horizontal commands.
Group
Horizontal
2-344 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
Syntax
HORizontal?
Examples
HORIZONTAL? might return the following horizontal settings
:HORIZONTAL:DELAY:MODE 1;TIME 0.000 0;:HORIZONTAL:MAIN:SCALE
20.0000E-9;SAMPLERATE 5.0000E+9;UNITS "s";UNITS:STRING
"s";:HORIZONTAL:SAMPLERATE 5.0000E+9;RECORDLENGTH 1000000
HORizontal:DELay:MODe
This command specifies the horizontal delay mode.
Group
Horizontal
Syntax
HORizontal:DELay:MODe {OFF|ON|<NR1>}
HORizontal:DELay:MODe?
Related Commands
HORizontal:POSition
Arguments
OFF sets the Horizontal Delay Mode to off. This causes the HORizontal:POSition
command to operate like the HORIZONTAL POSITION knob on the front panel.
ON sets the Horizontal Delay Mode to on. This causes the
HORizontal:DELay:TIMe command to operate like the HORIZONTAL
POSITION knob on the front panel.
<NR1> = 0 sets the Horizontal Delay Mode to off; any other value sets this mode
to on.
Examples
HORIZONTAL:DELAY:MODE OFF sets the Horizontal Delay Mode to off, allowing
the horizontal position command to operate like the HORIZONTAL POSITION
knob on the front panel.
HORIZONTAL:DELAY:MODE? might return HORIZO NTAL:DELAY:MODE OFF
indicating that the Horizontal Delay Mode is off and that the horizontal position
command operates like the HORIZONTAL POSITION knob on the front panel.
HORizontal:DELay:TIMe
This command specifies the horizontal delay time (position) that is used when
delay is on (the default mode).
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-345