Features and Functions
2
34980A User’s Guide
15
•
The Analog Bus relays are automatically opened and closed as required
during the scan to connect to the internal DMM for the measurement.
For example, all 2- wire measurements use the ABus1 (MEAS) relays
for 4- wire measurements, the ABus2 (SENS) relays are used in addition
to the ABus1 relays.
•
Each time you initiate a new scan, the instrument will clear the
previous set of readings from memory.
Front Panel Operation:
•
To configure the measurement parameters and add a channel to the
scan list, use the
Channel (Configure)
key.
•
To initiate a scan and store all readings in memory, press the
Scan (Measure)
key. If you press the
Scan (Measure)
key with no
scan list defined, the instrument initiates a DMM- only measurement
(see
“Stand- Alone DMM Mode”
below).
•
To stop a scan in progress, 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).
Remote Interface Operation:
•
To define the list of channels to be included in the scan list, use the
ROUTe:SCAN
command.
•
To configure the measurement parameters on the desired channels,
use the
CONFigure
and
SENSe
commands.
•
To initiate a scan and store all readings in memory, use the
INITiate
or
READ?
command. Each time you initiate a new scan, the instrument
will clear the previous set of readings from memory.
•
To stop a scan 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).
N O T E
You can use the READ? command in one of three forms depending on
which measurement mode you wish to use.
•
If you omit the optional <ch_list> parameter and a scan list is not
currently defined, the READ? command applies to the internal DMM.
•
If you omit the optional <ch_list> parameter and a scan list is currently
defined, the READ? command performs a scan of the channels in the
scan list.
•
If you specify a <ch_list>, regardless of whether a scan list is currently
defined, the READ? command performs a “temporary” scan of the
specified channels (independent of the present scan list).
Содержание Agilent 34980A
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