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SCPI Command Reference
Model 2520 User’s Manual
Query latest readings
[:LATest]?
[:SENSe[1]]:DATA[:LATest]?
Query laser diode voltage reading
:SENSe2:DATA[:LATest]?
Query detector #1 current reading
:SENSe3:DATA[:LATest]?
Query detector #3 current reading
Query
:DATA[:LATest]?
Query latest reading
Description
These queries request the latest readings
only when the unit is in the idle
layer of the trigger model
(see
:SENS1:DATA? requests the latest laser diode voltage measurement,
while :SENS2:DATA? and :SENS3:DATA? request the latest detector
#1 and detector #2 current readings respectively.
Configure and control filter
NOTE
Detailed information on the filter is provided in
Filter commands are global and affect all three measurement functions simultaneously.
COUNt <n>
[:SENSe[1]]:AVERage:COUNt <n>
Set average filter count
:SENSe2:AVERage:COUNt <n>
Set average filter count
:SENSe3:AVERage:COUNt <n>
Set average filter count
Parameters
<n> =
1 to 100
Specify average filter count
DEFault
10
MINimum
1
MAXimum
100
Query
:COUNt?
Query filter count
:COUNt? DEFault
Query the *RST default filter count
:COUNt? MINimum
Query the lowest allowable filter count
:COUNt? MAXimum
Query the largest allowable filter count
Description
These commands are used to specify the average filter count. The filter
count is the number of readings that are acquired and stored in the filter
buffer for the averaging calculation. Each aquired group of readings
yields a single set of filtered readings. The larger the filter count, the
more filtering that is performed, but at the expense of measurement
speed.
Summary of Contents for 2520
Page 250: ...A Specifications ...
Page 254: ...B StatusandErrorMessages ...
Page 262: ...C DataFlow ...
Page 266: ...D IEEE 488BusOverview ...
Page 281: ...E IEEE 488andSCPI ConformanceInformation ...
Page 285: ...F MeasurementConsiderations ...
Page 308: ...G GPIB488 1Protocol ...
Page 312: ...H ExamplePrograms ...
Page 317: ...I ContinuousPulseMode ...