MDO3000 Programmer Manual.pdf - 第146页

Commands Listed in A lphabetical Order Examples ACQUIRE:NUMAV G1 6 speciﬁes that 16 waveform averages will be performed before exponential averaging starts. ACQUIRE:NUMA VG? might return :ACQUIRE:NU MAVG 64 indicating th…

Commands Listed in Alphabetical Order

Examples

ACQUIRE:MODE E

NVELOPE

sets the acquisition mode to display a waveform that

is an envelope of many individual waveform acquisitions.

ACQUIRE:MODE

might return:ACQui re:MODe AVERAGE indicating that

the displayed waveform is the average of the speciﬁed number of waveform

acquisitions.

ACQuire:NU

MACq? (Query Only)

Returns the number of waveform acquisitions that have occurred since starting

acquisition with the ACQuire:STATE RUN command. This value is reset to zero

when any a

cquisition, horizontal, or vertical arguments that affect the waveform

are changed. The maximum number of acquisitions that can be counted is 2

Group

Acquisition

Syntax

ACQuire:NUMACq?

Related Commands

ACQuire:STATE

Returns

ACQuire:NUMACq? might return :ACQUIRE:N UMACQ 350 indicating that 350

acquisitions have occurred since executing an ACQuire:STATE RUN command.

ACQuire:NUMAVg

Speciﬁes the number of waveform acquisitions that should make up an averaged

waveform. Use the ACQuire:MODe command to enable the Average mode.

Sending this command is equivalent to turning a multipurpose knob to enter the

number of waveform acquisitions to average.

Group

Acquisition

Syntax

ACQuire:NUMAVg <NR1>

ACQuire:NUMAVg?

Related Commands

ACQuire:MODe, ACQuire:STATE

Arguments

<NR1> is the number of waveform acquisitions to average. The range of values is

from2to512inpowersoftwo.

MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-115

Commands Listed in Alphabetical Order

Examples

ACQUIRE:NUMAV

G16

speciﬁes that 16 waveform averages will be performed

before exponential averaging starts.

ACQUIRE:NUMA

VG?

might return :ACQUIRE:NUMAVG 64 indicating that there

are 64 acquisitions speciﬁed for averaging.

ACQuire:NUMEnv

This command controls the number of envelopes (when acquisition mode has

been set to ENVelope using ACQuire:MODe). The number of envelopes can

be set from 1 to 2000 in increments of 1, or to INFInite. Setting the value to a

number gr

eater than 2000 sets the number of envelopes to INFInite.

Group

Acquisition

Syntax

ACQuire:NUMEnv {<NR1>|INFInite}

ACQuire:NUMEnv?

Related Commands

ACQuire:MODe, ACQuire:STATE

Arguments

<NR1> is an integer that speciﬁes the number of envelopes to use when the

acquisition mode has been set to ENVelope.

INFInite speciﬁes to use an inﬁnite number of envelopes.

Examples

ACQuire:NUMEnv 22 sets the number of envelopes to 22.

ACQuire:NUMEnv? returns the number of envelopes that has been speciﬁed,

either an integer or INFINITE.

ACQuire:STATE

Starts or stops acquisitions. When state is set to ON or RUN, a new acquisition

will be started. If the last acquisition was a single acquisition sequence,anew

single sequence acquisition will be started. If the last acquisition was continuous,

a new continuous acquisition will be started.

If RUN is issued in the process of completing a single sequence acquisition (for

example, averaging or enveloping), the acquisition sequence is restarted, and

any accumulated data is discarded. Also, the oscilloscope resets the number of

acquisitions. If the RUN argument

is issued while in continuous mode, acquisition

continues.

2-116 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual

Commands Listed in Alphabetical Order

Group

Acquisition

Syntax

ACQuire:STATE {OFF|ON|R UN|STOP|<NR1>}

ACQuire:STATE?

Related Commands

ACQuire:STOPAfter

Arguments

OFF stops acquisitions.

STOP stops acquisitions.

ON starts acquisitions.

RUN starts acquisitions.

<NR1> = 0 stops acquisitions; any other value starts acquisitions.

Examples

ACQUIRE:STATE RUN starts the acquisition of waveform data and resets the count

of the number of acquisitions.

ACQUIRE:STATE? might return:ACQUIRE:STATE 0 indicating that the

acquisition is stopped.

ACQuire:STOPAfter

Speciﬁes whether the oscilloscope should continually acquire acquisitions or

acquire only a single sequence.

Group

Acquisition

Syntax

ACQuire:STOPAfter {RUNSTop|SEQuence}

ACQuire:STOPAfter?

Related Commands

ACQ

uire:STATE

Arguments

RUNSTop speciﬁes that the oscilloscope will continually acquire data, if

ACQuire:STATE is turned on.

SEQuence speciﬁes that the next acquisition will be a single-sequence acquisition.

MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-117