FETCh?
Waits for measurements to complete and copies all available measurements to the instrument's output
buffer. The readings remain in reading memory.
Parameter
Typical Return
(none)
(none)
Use FETCh? with CONFigure and INITiate. The
command places the instrument in the "wait-for-trig-
ger" state, triggers a measurement when the rear-panel
Ext Trig
input is pulsed (low by default), and sends
the measurement to reading memory. The FETCh? query transfers the measurement from reading memory
to the instrument's output buffer.
CONF:VOLT:DC 10,0.003
TRIG:SOUR EXT
SAMP:COUN 4
INIT
FETC?
Typical Response: -4.98748741E-01,-4.35163427E-01,-4.33118686E-01,-3.48109378E-01
l
The FETch? query does not erase measurements from the reading memory. You can send the query
multiple times to retrieve the same data.
l
You can store up to 1,000 measurements in the reading memory of the 34460A, 10,000 meas-
urements on the 34461A, 50,000 measurements on the 34465A/70A (
without
the MEM option), or
2,000,000 measurements on the 34465A/70A (
with
the MEM option). If reading memory overflows,
new measurements overwrite the oldest measurements stored; the most recent measurements are
always preserved. No error is generated, but the Reading Mem Ovfl bit (bit 14) is set in the Ques-
tionable Data Register's condition register (see
).
l
The instrument clears all measurements from reading memory when the measurement configuration
changes, or when any of these commands are executed:
,
,
.
SCPI Programming Reference
202
Keysight True
volt
Series Operating and Service Guide
