Keysight Technologies 3458A Guide D'utilisation page 290

6 Command Reference
mode
The mode parameter choices are:
mode
parameter
OFF
LIFO
FIFO
CONT
Power-on mode = OFF.
Default mode = ON.
Remarks
– In the high-speed mode, when reading memory is enabled in the FIFO mode
– When the controller requests data from the multimeter and its output buffer is
290
Numeric
query equiv.
0
1
2
3
and becomes full, the trigger arm event becomes HOLD which stops readings
and removes the multimeter from the high-speed mode. After removing some
or all of the readings from memory, you can resume measurements by
changing the trigger arm event (TARM command). When not in the high-speed
mode, when you fill memory in the FIFO mode, the stored readings remain
intact and new readings are not stored. In the LIFO mode, when reading
memory becomes full, the oldest readings are replaced with the newest
readings regardless of whether in the high-speed mode or not.
empty in the LIFO or FIFO mode, a reading is removed from memory and sent
to the controller. This is the "implied read" method of recalling readings. In the
LIFO mode, the most recent reading is returned. In the FIFO mode, the oldest
reading is returned. The reading storage mode (LIFO or FIFO) is important only
when you are using the "implied read" method of recalling readings. The
reading storage mode has no effect on readings recalled using the RMEM
command.
Description
Stops storing readings (stored readings stay intact)
Clears reading memory and stores new readings LIFO
(last-in-first-out)
Clears reading memory and stores new readings FIFO
(first-in-first-out)
Keeps memory intact and selects previous mode (if there was no
previous mode, FIFO is selected)
Keysight 3458A User's Guide