Keysight Technologies 3458A Guide D'utilisation page 136

4 Making Measurements
Event combinations
You can specify many combinations of the trigger arm, trigger, and sample events
to suit your application.
events and describes the resultant triggering sequence for each.
Table 4-2
Trigger
136
Event combinations
Trigger
arm Sample event Description
event
event
AUTO AUTO
AUTO, EXT,
AUTO EXT TIMER, LINE,
LEVEL
AUTO EXT
AUTO, EXT,
AUTO LEVEL
TIMER, LEVEL
AUTO LEVEL SYN, LINE
AUTO, EXT,
AUTO LINE
TIMER, LINE
AUTO LINE SYN, LEVEL
AUTO SGL
AUTO SYN
AUTO, EXT,
AUTO SYN LEVEL,
LINE, TIMER
Table 4-2 shows, all possible combinations of these
One reading is taken per sample event (if the sample event is
Any
AUTO, readings are taken continuously).
After a negative edge transition on the Ext Trig input, one reading
is taken per sample event until the specified number of readings
are completed.
SYN Illegal
After the LEVEL event
event, until the specified number of readings are completed.
Illegal
After the power line voltage crosses zero volts, one reading is
taken per sample event until the specified number of readings
are completed.
Illegal
After executing the TRIG SGL command, one reading is taken per
sample event until the specified number of readings are
Any completed. The trigger event then becomes HOLD. When using
the SYN sample event, the input buffer must be enabled or you
must suppress cr lf when sending the TRIG SGL command.
After the controller requests data,
satisfied and the first reading is taken. One reading is then taken
SYN
per SYN event until the specified number of readings are
completed.
After the controller requests data,
sample event until the specified number of readings are
completed.
[a]
occurs, one reading is taken per sample
[b]
both SYN events are
[b]
one reading is taken per
Keysight 3458A User's Guide