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Command Groups
2–20
TDS Family Oscilloscope Programmer Manual
Table 2–12: Histogram Commands (Cont.)
Header Description
HIStogram:BOXPcnt
(TDS 500C & 700C)
Define the left, top, right, and bottom positions
of the histogram box, in percentage coordi-
nates.
HIStogram:COUNt
(TDS 500C & 700C)
Zeros the counts for histograms and starts
recounting
HIStogram:DISplay
(TDS 500C & 700C)
Select the way the histogram is displayed, if at
all
HIStogram:MODe
(TDS 500C & 700C)
Selects the type of histogram to be made – or
turn the histogram off
HIStogram:SIZe
(TDS 500C & 700C)
Controls the width (or height) of the histogram
on the screen
HIStogram:SOUrce
(TDS 500C & 700C)
Selects which trace to use when histograms
are turned on
Horizontal Commands
Horizontal commands control the time bases of the digitizing oscilloscope. You
can set the time per division (or time per point) of both the main and delay time
bases. You can also set the record lengths. Table 2–13 lists these commands.
You may substitute SECdiv for SCAle in the horizontal commands. This
provides program compatibility with earlier models of Tektronix digitizing
oscilloscopes.
Table 2–13: Horizontal Commands
Header Description
HORizontal? Return horizontal settings
HORizontal:ACQDURATION?
(TDS 500C & 700C)
Returns the overall time interval covered by
the live channels
HORizontal:ACQLENGTH?
(TDS 500C & 700C)
Returns the acquisition length – either the
extended one when extended acquisition
length mode is on or the record length when
this mode is off
HORizontal:CLOCk
(TDS 400A)
Enable internal or external clocks
HORizontal:CLOCk:MAXRate
(TDS 400A)
Set maximum external clock rate
HORizontal:DELay? Return delay time base settings