MDO3000 Programmer Manual.pdf - 第979页

Commands Listed in Alphabetical Order Related Comma nds WFMInpre:WFMT YPe Arguments TIMe specifies to treat th e information to be transf erred as integer values. FREQuency specifies to treat the information t o be transfe…

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Commands Listed in Alphabetical Order
WFMINPRE:BYT_
OR?
might return :WFMINPRE:BYT_OR LSB indicating that the
least significant incoming
CURVe data byte will be expected first.
WFMInpre:CENTERFREQuency
This command specifies the center frequency of the incoming RF trace
(waveform), in hertz. The center frequency is a precise frequency at the center of
the frequency domain display. In many applications, it is a carrier frequency.
Conditions
MDO3000, MDO4000/B, or MDO4000C models with option SA3 or SA6 only.
Group
Waveform Transfer
Syntax
WFMInpre:CENTERFREQuency <NR3>
WFMInpre:CENTERFREQuency?
Arguments
<NR3> is a floating point number.
Examples
WFMInpre:CENTERFREQuency 3.0E+09 sets the center frequency to 3 GHz.
WFMInpre:CENTERFREQuency? might return 3.0E+09, indicating that the center
frequency has been set to 3 GHz.
WFMInpre:DOMain
This command specifies whether the information being sent to a reference
location should be treated as integer (time domain) information, or floating point
(frequency domain) information, for the purposes of storing the data internally.
The default is
TIMe. This parameter should be set before using the CURVe
command to transfer a waveform from a PC to an internal reference location.
Conditions
The FREQuency argument is only supported on MDO4000/B/C and
MDO3000 series models. Attempts to set the domain to frequency on non-MDO
models are ignored.
Group
Waveform Transfer
Syntax
WFMInpre:DOMain {TIMe|FREQuency}
WFMInpre:DOMain?
2-948 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
Related Comma
nds
WFMInpre:WFMT
YPe
Arguments
TIMe specifies to treat the information to be transferred as integer values.
FREQuency specifies to treat the information to be transferred as floating point
values.
Examples
WFMInpre:DOMain FREQuency specifies to treat the information to be
transferred from a PC to a reference location as floating point values.
WFMInpre:DOMain? might return TIME, indicating that the information is being
treated as integer values (time domain).
WFMInpre:ENCdg
This command specifies the type of encoding of the incoming waveform data
to be sent to the oscilloscope using the
CURVe command. Supported types are
BINary and ASCii.
(See page 2-95, Waveform Transfer Command Group.)
Group
Waveform Transfer
Syntax
WFMInpre:ENCdg {ASCii|BINary}
WFMInpre:ENCdg?
Related Commands
WFMOutpre:ENCdg
Arguments
ASCii specifies that the incoming data is in ASCII format.
BINary specifies that the incoming data is in a binary format whose further
interpretation requires knowledge of BYT_NR, BIT_NR, BN_FMT, and
BYT_OR.
Examples
WFMINPRE:ENCDG ASC sets the format of incoming waveform data to ASCII
format.
WFMINPRE:ENCDG ? might return :WFMINPRE: ENCDG BIN indicating that the
incoming waveform data is in binary format.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-949
Commands Listed in Alphabetical Order
WFMInpre:NR_Pt
This command specifies the number of data points that are in the incoming
waveform record to be sent to the oscilloscope using the
CURVe command.
(See page 2-95, Waveform Transfer Command Group.)
Group
Waveform Transfer
Syntax
WFMInpre:NR_Pt <NR1>
WFMInpre:NR_Pt?
Related Commands
CURVe,
DATa,
DATa:STARt,
DATa:STOP,
SAVe:WAVEform,
SAVe:WAVEform:FILEFormat,
WFMOutpre:NR_Pt?
Arguments
<NR1> is the number of data points if WFMInpre:PT_Fmt is set to Y. It is the
number of min-max pairs if WFMInpre:PT_Fmt is set to ENV.
Examples
WFMINPRE:NR_PT 10000 specifies that 10000 data points will be expected.
WFMINPRE:NR_PT ? might return :WFMINPRE:NR_PT 10 000 indicating that
there are 10000 data points in the expected incoming waveform record.
WFMInpre:PT_Fmt
This command specifies the acquisition format of the data points to be sent tothe
oscilloscope using the
CURVE command. This can be Y for YT format, or ENV
for envelope mode (min/max pairs). For YT format, each data value represents a
single waveform data point. For envelope format, each data point represents a
min/max pair, where the minimum value precedes the maximum value.
(See page 2-95, Waveform Transfer Command Group.)
Group
Waveform Transfer
2-950 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual