Technical data

134 N9320A Programmer’s Guide
5 Command Reference
TRIGger Subsystem
The TRIGger subsystem is used to set the controls and
parameters associated with triggering the data acquisitions.
Other trigger- related commands are found in the INITiate
and ABORt subsystems.
External Trigger Slope
:TRIGger[:SEQuence]:EXTernal[1]:SLOPe POSi-
tive|NEGative
:TRIGger[:SEQuence]:EXTernal[1]:SLOPe?
This command activates the trigger condition that allows the
next sweep to start when the external voltage (connected to
EXT TRIG IN on the rear panel) passes through approximately
1.5 volts. The external trigger signal must be a 0 V to +5 V
TTL signal. This function only controls the trigger polarity
(for positive or negative- going signals).
*RST: Positive
Key access: > External Pos Neg
Set Trigger Offset
:TRIGger[:SEQuence]:OFFSet <time>
:TRIGger[:SEQuence]:OFFSet?
This command sets the trigger offset.
*RST: 0 seconds
Example: :TRIG:SEQ:OFFS 1.0s
Range: Hardware specific; dependent upon the ADC being used,
current state, and the number of sweep points.
Default Unit: seconds
Remarks: Trigger offset refers to the specified time interval before or
after the trigger event from which data is to be written to
the trace, and then displayed. Ordinarily, the trigger offset
value is zero, and trace data is displayed beginning at the
trigger event. A negative trigger offset value results in the
Sweep/
Tri g