Command Notes (Signal Oriented Measurement Commands And Queries) - Keithley 2302 Instruction Manual

NOTE
For all array queries, make sure the computer's buffer is large enough to
accommodate all array readings. Overflow readings exponential format = +9.9E37.
For all non-array queries, the overflow readings exponential format also = +9.9E37.

Command notes (Signal oriented measurement commands and queries)

:FETCh[1]?
(#1)
:FETCh[1]:ARRay?
channel (#1)
:FETCh2?
(#2)
:FETCh2:ARRay?
channel (#2)
The :FETCh? command is used to return the last averaged reading, and the :FETCh:ARRay?
command is used to return the last array of readings. After sending either one of these commands
and addressing the power supply to talk, the averaged reading or reading array is sent to the
computer. These commands do not affect the instrument setup.
These commands do not trigger measurements but are
the last triggered averaged reading or reading array. Note that they can repeatedly return the
same reading or reading array. Until there is a new triggered reading(s), these commands
continue to return the old triggered reading(s).
The number of readings to average or put in an array is set using the SENSe:AVERage (for
voltage, current and DVM readings) or SENSe:PCURrent:AVERage (for pulse-current
readings) command. See Sections 2 and 3 for details.
NOTES
1. FETCh? and FETCh:ARRay? readings are always sent in exponential form.
2. There are no AVERage commands for long integration measurements. The array
size for long integration readings is fixed at one. Therefore, both FETCh? and
FETCh:ARRay? will return the last reading.
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Signal Oriented Measurement Commands
Return last reading for the battery channel
Return last array of readings for the battery
Return last reading for the charger channel
Return last array of readings for the charger
triggered before reading(s)
10-3
. They return