Tektronix WCA230A, Programmer'S Manual

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:TRIGger Commands
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WCA230A & WCA280A Programmer Manual
:TRIGger[:SEQuence]:MPOSition? (Query Only)
Queries the trigger occurence point in one block data acquired on the memory
when measurement results are obtained with the :FETCh or :READ commands.
:TRIGger[:SEQuence]:MPOSition? <value>
<value>::=<NR1>
specifies the block number. Zero indicates the latest block.
Range: --2285 to 0 (standard) or --9142 to 0 (option 02)
<NR1>
represents the trigger occurence point. The returned value depends on
whether a trigger occurred or not, as shown in the table below.
Trigger occurrence Returned value
1
Trigger occurred --1024 to (block size)
×
1024 --1
No trigger occurred (block size)
×
1024
1
The block size is set with [:SENSe]:BSIZe.
A minus value indicates that the trigger occurred before the block data acquisi-
tion.
If you send :TRIGger[:SEQuence]:MPOSition? MINimum | MAXimum when
the measurement is not performed, “Execution error” (--200) is returned.
NOTE
. When you select PNEGative or NPOSitive with the :TRIGger[:SEQuence]
:SLOPe command or IQFRequency with the :TRIGger[:SEQuence]:SOURce
command, the returned value is the same as the :TRIGger[:SEQuence]:OPOSi-
tion? query because the analyzer cannot determine the trigger occurrence point.
SARTIME, SAZRTIME, all Demod modes, all Time modes
:TRIGger:SEQuence:MPOSition? -15
might return 123, indicating that the trigger occurred at the 123th data point in
the block #--15.
[:SENSe]:BSIZe, :TRIGger[:SEQuence]:OPOSition?,
:TRIGger[:SEQuence]:SLOPe, :TRIGger[:SEQuence]:SOURce
Syntax
Arguments
Returns
Measurement Modes
Examples
Related Commands