User Manual
Command Descriptions
Arguments
Y speci fiesanor
mal waveform where one ASCII or binary data point is
transmitted for each point in the waveform record.
For Y format, t
he time (absolute coordinate) of a point, relative to the trigger, can
be calculated using the following formula. N ranges from 0 to 2499.
X
n
= XZEro + X
INcr (n - PT_OFf)
For Y format, the magnitude (usually voltage, relative to ground) (absolute
coordinate
) of a point can be calculated:
Y
n
= YZEro + YMUIty (y
n
-YOFf)
ENV specifies that the oscilloscope transmit the waveform as minimum and
maximum point pairs. Peak detect wave forms use ENV format. Peak Detect
mode spec
ifies a m aximum of 1250 (minimum, maximum) pairs, with the time
between pairs being 2*XINcr.
The magn
itudes and times of ENV format waveform points can be calculated
using the same formulas used for Y format, if you recognize that the points
consist of (minimum, maximum) pairs, where each p air was collected over a
time period of 2*XINcr.
Thus, the samples for n=0 (a minimum) and n=1 (a maximum), the first
(minimum, maximum) pair, were collected over a time interval of width 2*XINcr,
that began at the time found by setting n to zero in the formula. The next pair
were collected over the interval that began at the time found by setting n to 2 in
the f
ormula, and so on.
Examples
WFMPRE:PT_FMT Y sets the waveform data point format to Y.
WFMPRE:PT_FMT? returns either Y or ENV
WFMPre:<wfm>:PT_Fmt
Same as WFMPre:PT_Fmt, 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:PT_Off
The set form this command is ignored.
The query form always returns a 0, unless the DATA:SOUrce waveform is not
displayed, in which case the query generates an error and returns event code 2244.
This command is included for compatibility with other Tektronix oscilloscopes.
TDS200, TDS1000/2000, TDS1000B/2000B, TDS2000C, TPS2000 Programmer 2-187