Keysight Technologies 3458A Guide D'utilisation page 139

Table 4-2
Trigger
[a] The LEVEL event occurs when the specified voltage is reached on the specified slope of the input signal. The LEVEL
[b] The output buffer must be empty and reading memory must be OFF or empty for the SYN event to occur.
[c] The input buffer must be enabled or you must suppress cr lf when sending the TARM SGL command.
Keysight 3458A User's Guide
Event combinations (continued)
Trigger
arm Sample event Description
event
event
SYN AUTO
AUTO, EXT,
SYN AUTO TIMER,
LINE, LEVEL
AUTO, EXT,
SYN EXT TIMER,
LINE, LEVEL
SYN EXT
AUTO, EXT,
SYN LEVEL TIMER,
LEVEL
SYN LEVEL SYN, LINE
AUTO, EXT,
SYN LINE
TIMER, LINE
SYN LINE SYN, LEVEL
SYN SGL
SYN SYN
AUTO, EXT,
SYN SYN TIMER, LINE,
LEVEL
trigger event or sample event can only be used for DC voltage or direct-sampled measurements.
After the controller requests 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 the controller requests data,
sample event until the specified number of readings are
completed.
After the controller requests data,
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 controller requests data,
of the LEVEL event,
the specified number of readings are completed
Illegal
After the controller requests data,
voltage crossing zero volts, one reading is taken per sample
event until the specified number of readings are completed.
Illegal
Any Illegal
After the controller requests data,
SYN
and the first reading is taken. One reading is then taken per SYN
event until the specified number of readings are completed.
After the controller requests data,
satisfied. One reading is then taken per sample event until the
specified number of readings are completed.
Making Measurements
[b]
(which satisfies both SYN
[b]
one reading is taken per
[b]
followed by a negative edge
[b]
followed by the occurrence
[a]
one reading is taken per sample event until
[b]
followed by the power line
[b]
all three events are satisfied
[b]
both SYN events are
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