8-72 Command Reference
:MEASure :ARRay :STSTamp? CNT-91
8(<array size>)[,(@1)|(@2)]
Single Time Stamp
A time stamp (TS) is taken of the trigger level crossing on the selected input chan
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nel. The commands :MEAS and :CONF automatically invoke :FORM:TINF 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.
The deadtime to the next TS is due to pacing and interpolator calibration and can
go down to 4 µs. The X counter records the number of trigger level crossings.
Depending on the state of the command :FORMat:TINFormation, one or two val
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ues are output for each TS. If OFF, only the content of the X counter at the
timestamp is output. If ON, both the X counter and the TS value are read and out
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put as two values, separated by a comma in ASCII and REAL mode.
Parameters
Array size is the number of TS. One TS can contain 1or 2 numeric values depend
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ing on the state of the :FORM:TINF command.
Returned Format:
<number of trg lvl crossings>,(<TS for trg lvl crossing>,)...deadtime...<number of
trg lvl crossings>,(<TS for trg lvl crossing>,)...deadtime...etc.
The format is set by the :FORMat command, and the data in parentheses is sent if
:FORM:TINF ON is active.
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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