CONFigure[:VOLTage]:{AC|DC} [{<range>|AUTO|MIN|MAX|DEF}, [{<resolution>|MIN|MAX|DEF},]]
(@<ch_list>)
AC voltage measurements only supported on DAQM901A multiplexer module.
DC voltage measurements only supported on DAQM900A, DAQM901A, DAQM902A, and DAQM908A mul-
tiplexer modules.
Configures the channels for ACand DC voltage measurements, but they do not initiate the scan. This command
redefines the scan list.
The CONFigure command does not place the instrument in the "wait-for-trigger" state. Use the INITiate or READ?
command in conjunction with CONFigure to place the instrument in the "wait-for-trigger" state.
Parameter Typical return
<range>: {100 mV|1 V|10 V|100 V|300 V}.
Default:AUTO
<resolution>
AC voltage: Optional and ignored; fixed at 6½ digits
DC voltage: 1 PLC
(none)
Configure AC voltage measurements using the 100 V range on channel 101, and read the measurement:
CONF:VOLT:AC 100, (@101)
READ?
Typical Response: +8.54530000E+01
– When you specify a range of channels with this command, any channels that are invalid will be ignored (no error
will be generated) but the selected function must be valid for at least one channel in the range, or an error will be
generated.
–
You can allow the instrument to automatically select the measurement range using autoranging or you can
select a fixed range using manual ranging. Autoranging is convenient because the instrument decides which
range to use for each measurement based on the input signal. For fastest scanning operation, use manual ran-
ging on each measurement (some additional time is required for autoranging since the instrument has to make a
range selection).
–
If you select autoranging (by specifying "AUTO" or "DEF") and specify a discrete value for the <resolution> para-
meter, the integration time selected based on the default range for the function (1 A for AC or DC current meas-
urements).
– Autorange thresholds:
Down range at: <10% of range
Up range at:>120% of range
– Because this command resets all measurement parameters on the specified channels to their default values, be
sure to send the CONFigure command before setting any other measurement parameters.
106
Keysight DAQ970A/DAQ973A Programming Guide
2 SCPI Programming
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