Tektronix DPO4000 Series, Programmer'S Manual

Page: 77 / 623

Command Groups
Table 2-33: Vertical Commands (cont.)
Command Description
REF<x>:VERTical:SCAle Sets or returns the reference waveform
vertical scale in vertical units/div
SELect Returns information on which waveforms are
on or off and which waveform is selected.
SELect:BUS<x> Turns on or off the speci fi ed bus waveform
or returns whether the speci fi ed bus channel
is on or off
SELect:CH<x> Turns on or off the speci fi ed waveform or
returns whether the speci fi ed channel is on
or off
SELect:CONTROl Sets or returns the waveform that is selected
as the implied recipient of channel-related
commands
SELect:D<x> Turns on the display of digital channel <x>
and resets the acquisition
SELect:MATH[1] Turns on or off the math waveform or returns
whether the math waveform is on or off
SELect:REF<x> Turns on or off the speci fi ed reference
waveform or returns whether the speci fi ed
reference waveform is on or off
Waveform Transfer Command Group
Use the commands in the Waveform Transfer Command Group to transfer
waveform data points to and from the oscilloscope. Waveform data points are a
collection of values that de
fi ne a waveform. One data value usually represents
one data point in the waveform record. When working with envelope waveforms,
each data value is either the minimum or maximum of a min/max pair.
Before you transfer waveform data, you must specify the data format, record
length, and waveform source or destination.
Data Formats All data points for DPO and MSO models are signed integer format only. Valid
data widths for CH1-CH4, MATH, REF1-REF4 and D0-D15 are 1 and 2-byte
widths. The valid data widths for the digital collection is either 4 or 8-byte widths.
The oscilloscope can transfer waveform data in either ASCII or binary format.
You specify the format with the DATa:ENCdg command.
ASCII Data.
ASCII data is represented by signed integer values. The range of the
values depends on the byte width speci fi ed. One byte wide data ranges from -128
to 127. Two byte wide data ranges from -32768 to 32767.
MSO4000 and DPO4000 Series Programmer Manual 2-63