MDO3000 Programmer Manual.pdf - 第994页

Commands Listed in A lphabetical Order Syntax WFMOutpre:CEN TERFREQuency? Examples WFMOutpre:CEN TERFREQuency? might return 1.0E+9, indicating a center frequenc y of 1 GHz. WFMOutpre:DOMain? (Query Only) This query retur…

100%1 / 1158
Commands Listed in Alphabetical Order
WFMOutpre:BY
T_Or
This command specifies which byte of outgoing binary waveform data is
transmitted first (the byte order). The byte order can either be MSB (most
significant b
yte first) or LSB (least significant byte first, also known as IBM
format). This specification only has meaning when WFMOutpre:ENCdg is set
to BINary and WFMOutpre:BYT_Nr is 2. Changing WFMOutpre:BYT_Or also
changes DATa:ENCdg (if DATa:ENCdg is not ASCIi).
(See page 2-95, Waveform Transfer Command Group.)
(See page D-1, Wa veform Transfer (WFMOutpre and CURVe Query) Examples.)
Group
Waveform Transfer
Syntax
WFMO
utpre:BYT_Or {LSB|MSB}
WFMOutpre:BYT_Or?
Related Commands
WFMOutpre:ENCdg,
WFMOutpre:BYT_Nr
Arguments
LSB specifies that the least significant byte will be transmitted first.
MSB specifies that the most significant byte will be transmitted first.
Examples
WFMOUTPRE:BYT_OR MSB sets the most significant outgoing byte of waveform
data to be transmitted first.
WFMOUTPRE:BYT_OR? might return :WFMOUTPRE:BYT_OR LSB indicating that
the least significant data byte will be transmitted first.
WFMOutpre:CENTERFREQuency? (Query Only)
This query returns the center frequency of the incoming waveform. For non-MDO
models, this query always returns 0.
The center frequency is a precise frequency at the center of the display of the
frequency domain graticule. In many applications, it is a carrier frequency.
Conditions
MDO3000, MDO4000/B, or MDO4000C models with option SA3 or SA6 only.
Group
Waveform Transfer
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-963
Commands Listed in Alphabetical Order
Syntax
WFMOutpre:CEN
TERFREQuency?
Examples
WFMOutpre:CENTERFREQuency? might return 1.0E+9, indicating a center
frequency of 1 GHz.
WFMOutpre:DOMain? (Query Only)
This query returns the domain of the outgoing waveform — either TIMe or
FREQuency. If the domain is TIMe, it indicates that the data is to be treated as
integer information. If the domain is FREQuency, it indicates that the dataistobe
treated as floating point information.
Conditions
MDO3000, MDO4000/B, or MDO4000C models with option SA3 or SA6 only.
Group
Waveform Transfer
Syntax
WFMOutpre:DOMain?
Examples
WFMOutpre:DOMain might return FREQuency, indicating that the outgoing
waveform is one of the four RF frequency domain traces (RF_NORMal,
RF_AVErage, RF_MINHOLD, RF_MAXHOLD).
WFMOutpre:ENCdg
This command specifies the type of encoding (BINary or ASCii) of the outgoing
waveform data queried using the
CURVe? query. (This can also be set using the
DATa:ENCdg command, which provides the ability to set
WFMOutpre:ENCdg,
WFMOutpre:BN_Fmt,
and WFMOutpre:BYT_ Or using a single command.)
(See page 2-95, Waveform Transfer Command Group.)
(See page D-1, Waveform Transfer (WFMOutpre and CURVe Query) Examples.)
Group
Waveform Transfer
Syntax
WFMOutpre:ENCdg {ASCii|BINary}
WFMOutpre:ENCdg?
Related Commands
DATa:ENCdg,
WFMOutpre:BYT_Nr,
2-964 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
WFMOutpre:BYT
_Or,
WFMOutpre:BIT_Nr,
WFMOutpre:BN_Fmt
Arguments
ASCii specifies that the outgoing data is to be in ASCII format. Waveforms
will be sent as
<NR1> numbers.
BINary specifies that outgoing data is to be in a binary format whose further
specification is determined by WFMOutpre:BYT_Nr, WFMOutpre:BIT_Nr,
WFMOutpre:BN_Fmt and WFMOutpre:BYT
_Or.
Examples
WFMOUTPRE:ENCDG? might return :WFMOUTPRE:ENCDG BIN indicating that
outgoing waveform data will be sent
in binary format.
WFMOUTPRE:ENCDG ASC specifies that the outgoing waveform data will be sent
in ASCII format.
WFMOutpre:NR_Pt? (Query Only)
This query returns the number of data points in the waveform record that will
be transmitted in response to a
CURVe? query. This value is the adjusted
range specified by
DATA:START and DATA:STOP commands. Note that the
oscilloscope automatically adjusts the
DATA:START and DATA:STOP values
when the
DATA:STOP valueislessthantheDATA:START value,andwhenthe
DATA:START and/or DATA:STOP value is greater than the record length of the
source waveform. The adjusted
DATA:START and DA TA:STOP values determine
WFMOUTPRE:NR_PT.(YoucanuseDATa:STARt and DATa:ST OP to transfer
partial waveforms.) If the waveform specified by the DATa:SOUrce command is
not turned on, an error will be generated.
(See page 2-95, Waveform Transfer Command Group.)
Group
Waveform Transfer
Syntax
WFMOutpre:NR_Pt?
Related Commands
CURVe,
DATa,
DATa:STARt,
DATa:STOP,
SAVe:WAVEform,
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-965