Command Reference 8-73
:MEASure :ARRay :TSTAmp?
8(<array size>)[,(@1)|(@2)]
Time Stamp
Time stamps are taken of all positive and negative trigger level crossings of the se
-
lected input channel. The commands :MEAS and :CONF automatically invoke
:FORMat:TINFormation ON to get the time stamp data, but when :FUNC is used
instead, you should normally let it be preceded by the :FORMat:TINFormation ON
command explicitly. Otherwise the TS
1
values will be omitted. See Returned format
below.
Measurements are performed in groups of four TS results, two positive and two
negative, with no deadtime between the values. Deadtime between groups is af
-
fected by pacing and interpolator calibration,downto4ms.
Measurement results of 0 indicate negative trigger level crossings, whereas posi
-
tive values indicate the number of positive trigger level crossings since the last re
-
set.
Parameters:
<array size> sets the number of samples. One complete group requires an array
size of 4. It can contain 4 or 8 numeric values depending on whether :FOR
-
Mat:TINFormation is OFF or ON. See the first paragraph above.
Returned format:
<zero result>,<TS for neg. crossing>,<number of pos. crossings>,<TS for pos.
crossing>,<zero result>,<TS for neg. crossing>,<number of pos. crossings>,<TS
for pos. crossing>...deadtime...<zero result>,<TS for neg. crossing>... etc.
1
TS is the time stamp value in seconds since a certain start event that is not avail-
able for external control. Consequently the TS values can only be used for relative
time measurements.
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