Command Descriptions
2- 258
TDS200, TDS1000/2000, TDS1000B/2000B, TPS2000 Programmer
AA for amps*a mps
VV for volts*volts
<QString> returns the following:
Volts for volts
U for unknown units (divisions)
dB for decibels
? for unknown mask waveforms units
For the TDS1000B, TDS2000B, a nd TPS2000 seri es, <QString> can
return the following:
A for amps
VA for volts*amps
AA for amps*a mps
VV for volts*volts
WFMPre:YZEro
For all model and firmware combinat ions except the TDS210 or
TDS220 oscilloscope (firmware below V 2.00) with a TDS2CMA
communications module, YZEro is a value, expressed in YUNits,
used to convert waveform reco rd 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
YZEro is used when c alculating cursor readouts.
The set form of this command affects the reference waveform
specified by DATA:DESTination.
The query form of this com mand returns a va lue for the waveform
specified by DATA:SOUrce. If that waveform is not active or
displayed, the query fails and the oscilloscope generates an
ReturnsReturns
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