Keysight Technologies 3458A Guide D'utilisation page 366

6 Command Reference
event
parameter
AUTO
EXT
SGL
HOLD
SYN
Power-on event = AUTO.
Default event = AUTO.
number_arms
The number_arms parameter is valid only with the SGL trigger arm event; in this
case, the valid range is 0 - 2.1E+9. Specifying 0 or 1 with the SGL event has the
same effect as using the default value (1): the trigger is armed once and then
reverts to the HOLD state (disabled). When you specify a number greater than 1
as the number_arms parameter, you have selected "multiple arming." In multiple
arming, the multimeter generates enough single trigger arms to satisfy the
number_arms parameter. Refer to "multiple arming" in the Remarks section below
for more information.
Power-on number_arms = 1 (multiple arming disabled)
Default number_arms = 1 (multiple arming disabled)
Remarks
– For all measurement functions except sub-sampling (see
– The trigger arm event does not necessarily trigger the multimeter. It merely
366
Numeric
query equiv.
1
2
3
4
5
trigger arm event operates along with the trigger event (TRIG command) and
the sample event (NRDGS or SWEEP command). To make a measurement, the
trigger arm event must occur first, followed by the trigger event, and finally the
sample event.
enables the trigger event, making it possible for the multimeter to respond to
Description
Always armed
Arms following a low-going TTL transition on the Ext Trig
connector. (Executing TARM EXT clears the trigger buffer if TBUFF
is ON).
Arms once (upon receipt of TARM SGL) then becomes HOLD
Triggering is disabled
Arms when the multimeter's output buffer is empty, reading
memory is off or empty, and the controller requests data.
Chapter 5), the
Keysight 3458A User's Guide