User`s guide

Features and Functions 3
Agilent 34980A Mainframe User’s Guide 117
Trigger Count
You can specify the number of triggers that will be accepted by the
internal DMM before returning to the “idle” state. The trigger count applies
to both scanning and stand- alone DMM measurements (with no scan list).
• Select a trigger count between 1 and 500,000 triggers, or continuous.
• You can store at least 500,000 readings in memory and all readings are
automatically time stamped. If memory overflows, the new readings will
overwrite the first (oldest) readings stored; the most recent readings are
always preserved.
• You can specify a trigger count in conjunction with a sample count and
a sweep count. The three parameters operate independent of one
another, and the total number of readings returned will be the product
of the three parameters.
• The
CONFigure and MEASure? commands automatically set the scan
trigger count to 1.
• The instrument sets the scan trigger count to 1 after a Factory Reset
(
*RST command). An Instrument Preset (SYSTem:PRESet command) or
Card Reset (
SYSTem:CPON command) does not change the setting.
Front Panel Operation: Scan (Configure) > SCAN TRIGGER > COUNTED|INFINITE
Remote Interface Operation: TRIGger:COUNt
To configure a continuous scan, send TRIG:COUNT INFINITY.
Sweep Count
The sweep count sets the number of sweeps per trigger event during a
scan (a sweep is one pass through the scan list). The front- panel sample
annunciator (“ * ”) turns on during each measurement.
Sweep count
t
Sweep 1Trigger
Sweep Count
(1 to 500,000 sweeps)
Sweep 2
Sweep n
Trigger
. . .