Agilent Technologies InfiniiVision 3000 DSO-X 3054A Manuel de service Page 641

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641
Agilent InfiniiVision 3000 X-Series Oscilloscopes
Programmer's Guide
28
:TRIGger Commands
Control the trigger modes and parameters for each trigger type. See:
"Introduction to :TRIGger Commands" on page 641
"General :TRIGger Commands" on page 643
":TRIGger:EBURst Commands" on page 651
":TRIGger[:EDGE] Commands" on page 656
":TRIGger:GLITch Commands" on page 662 (Pulse Width trigger)
":TRIGger:PATTern Commands" on page 671
":TRIGger:RUNT Commands" on page 680
":TRIGger:SHOLd Commands" on page 685
":TRIGger:TRANsition Commands" on page 691
":TRIGger:TV Commands" on page 696
":TRIGger:USB Commands" on page 702
Introduction to
:TRIGger
Commands
The commands in the TRIGger subsystem define the conditions for an
internal trigger. Many of these commands are valid in multiple trigger
modes.
The default trigger mode is :EDGE.
The trigger subsystem controls the trigger sweep mode and the trigger
specification. The trigger sweep (see ":TRIGger:SWEep" on page 650) can
be AUTO or NORMal.
NORMal mode — displays a waveform only if a trigger signal is present
and the trigger conditions are met. Otherwise the oscilloscope does not
trigger and the display is not updated. This mode is useful for
low- repetitive- rate signals.
AUTO trigger mode — generates an artificial trigger event if the trigger
specification is not satisfied within a preset time, acquires
unsynchronized data and displays it.
AUTO mode is useful for signals other than low-repetitive- rate signals.
You must use this mode to display a DC signal because there are no
edges on which to trigger.
The following trigger types are available (see ":TRIGger:MODE" on
page 648).
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