Agilent Technologies Agilent 34980A, Руководство пользователя

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14 34980A User’s Guide
2
Features and Functions
•
To stop storing readings in memory during long measurements,
press and hold the
Scan (Measure)
key.
• To view the readings in memory, use the View key (the readings are
not erased when you read them). Each time you initiate a new
DMM- only scan, the instrument will clear the previous set of readings
from memory.
Remote Interface Operation:
• You can use the
MEASure?
command without specifying a <ch_list> to
quickly take a stand- alone DMM reading. Note, however, that with the
MEASure?
command, most measurement parameters are set to their
default values.
• To close the desired channel relays and Analog Bus relays, use the
ROUTe:CLOSe
command. The Analog Bus relays on the multiplexer and
matrix modules are numbered s 911, s 912, s 913, etc.
• To directly control all measurement parameters or triggering, use the
CONFigure
,
SENSe
, and
TRIGger
commands without specifying a
<ch_list> parameter. To initiate the measurement, use the
INITiate
or
READ?
command without specifying a <ch_list>. Each time you initiate a
new measurement, the instrument will clear the previous set of
readings from memory.
• To stop a measurement in progress, use the
ABORt
command.
• To view the readings in memory, use the
FETCh?
command
(the readings are not erased when you read them).
Scanning Mode
In the Scanning Mode, the 34980A automatically controls a sequence
of measurements using the internal DMM, possibly across multiple
channels, and stores the results in memory. The 34980A closes and
opens the appropriate channel relays and Analog Bus relays required
for the sequence. The following general rules apply to the Scanning Mode
(for more information on using the Scanning Mode, see
“Scanning” on
page 43.)
• Any channel that can be “read” by the instrument can also be included
in a scan. A scan can also include a read of a digital channel or a read
of the totalizer count on the digital modules.
• Before you can initiate a scan, you must set up a scan list to include all
desired multiplexer or digital channels. Channels which are not in the
scan list are skipped during the scan.