Keysight Technologies 3458A Guide D'utilisation page 137

Table 4-2
Trigger
Keysight 3458A User's Guide
Event combinations (continued)
Trigger
arm Sample event Description
event
event
EXT AUTO
AUTO, EXT,
EXT EXT TIMER,
LINE, LEVEL
EXT EXT
AUTO, EXT,
EXT LEVEL TIMER,
LEVEL
EXT LEVEL SYN, LINE
AUTO, EXT,
EXT LINE TIMER,
EXT LINE SYN, LEVEL
EXT SGL
EXT SYN
AUTO, EXT,
EXT SYN TIMER,
LINE, LEVEL
HOLD Any
AUTO,
EXT,
HOLD
SGL,
SYN
After a negative edge transition on the Ext Trig input, one reading
Any is taken per sample event until the specified number of readings
are completed.
After two negative edge transitions on the Ext Trig input, one
reading is taken per sample event until the specified number of
readings are completed.
SYN Illegal
After a negative edge transition on the Ext Trig input followed by
the occurrence of the LEVEL event
sample event until the specified number of readings are
completed.
Illegal
After a negative edge transition on the Ext Trig input followed by
the power line voltage crossing zero volts, one reading is taken
per sample event until the specified number of readings are
LINE
completed.
Illegal
ANY Illegal
After a negative edge transition on the Ext Trig input followed by
the controller requesting data
SYN
events), the first reading is taken. One reading is then taken per
SYN event until the specified number of readings are completed.
After a negative edge transition on the Ext Trig input, followed by
the controller requesting data
event, until the specified number of readings are completed.
Any No readings taken until the trigger arm event is changed.
No readings taken until the trigger event is changed. When using
the SGL trigger arm event and the SYN sample event, the input
Any
buffer must be enabled or you must suppress cr lf when sending
the TARM SGL command.
Making Measurements
[a]
, one reading is taken per
[b]
(which satisfies both SYN
[b]
one reading is taken per sample
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