User Manual

Command Descriptions
The oscillosco
pe sets WFMPre:XZEro to zero when:
The display mode is set to XY.
The DATa:SOUrce is set to MATH FFT when the waveform is acquired.
NOTE. The oscilloscope uses XZEro when calculating cursor readouts.
Group
Waveform
Syntax
WFMPre:XZEro <NR3>
WFMPre:XZEro?
Arguments
<NR3> is the position, in XUNits, of the first waveform sample.
WFMPre:<wfm>:XZEro
Same as WFMPre:XZEro, except that <wfm> specifies the source/destination
waveform instead of DATa:SOUrce and DATa:DESTINATION.
For set commands, if <wfm> is not a reference waveform, the oscilloscope
generates error 2241.
WFMPre:YMUlt
YMUlt is a value, expressed in YUNits per digitizer level, used to convert
waveform record values to YUNit values using the following formula (where
dl is digitizer levels):
value_in_YUNits = ((curve_in_dl - YOFF_in_dl) * YMUlt) + YZERO_in_YUNits
The se t form of this command sets the vertical scale factor of the reference
waveform specifi ed by the DATa:DESTination command, expressed in YUNits
per digitizing level.
The query form returns a value for the waveform specified by the DATa:SOUrce
command, if that waveform is active or displayed. If that waveform is not active
or displayed, the query fails and the oscilloscope g enerates an execution error with
event code 2244 (waveform requested is not active).
Group
Waveform
Syntax
WFMPre:YMUlt <NR3>
WFMPre:YMUlt?
TDS200, TDS1000/2000, TDS1000B/2000B, TDS2000C, TPS2000 Programmer 2-191