Commands Listed in Alphabetical Order
WFMInpre:YUNi
t command (YUNit units). It uses the following formula (where
dl means digitizing levels; curve_in_dl is a data point value in the
CURVe data):
Value in YUNit units = ((curve_in_dl - YOFf) * YMUlt) + YZEro
NOTE. For a given waveform record, YMUlt, YOFf, and YZEro have to be a
consistent set, otherwise vertical cursor readouts and vertical measurements may
give incorrect results.
(See page 2-95, Waveform Transfer Command Group.)
Group
Waveform Transfer
Syntax
WFMInpre:YZEro <NR3>
WFMInpre:YZEro?
Related Commands
WFMInpre:YUNit
WFMInpre:YZEro
Arguments
<NR3> is a floating point number that specifies the offset in in units specified by
the
WFMInpre:YUNit command (YUNits).
Examples
WFMINPRE:YZERO 1.5E+0 specifies that the zero reference point for the
incoming waveform is 1.5 V below the center of the data range (given that
WFMInpre:YUNit is set to V).
WFMINPRE:YZERO? might return :WFMINPRE:YZEro 7.5000E-6 indicating
that the zero reference fo
r the incoming waveform is 7.5 µV below the center of
the data range (given that WFMInpre:YUNit is set to V).
WFMOutpre? (Query Only)
This query returns the information needed to interpret the waveform data points
returned by the
CURVe? query. It returns the waveform transmission and
formatting parameters for the waveform specified by the DATa:SOUrce command.
If the waveform specified by the DATa:SOUrce command is not displayed, the
oscilloscope returns only the waveform transmission parame
ters (BYT_Nr,
BIT_Nr, ENCdg, BN_Fmt, BYT_Or) and sets an error event indicating that the
source waveform is not turned on.
The Waveform Transfer command group text contains more comprehensive
infor
mation. (See page 2-95, Waveform Transfer Command Group.)
(See page D-1, Wa veform Transfer (WFMOutpre and CURVe Query) Examples.)
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-959
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