LCX_UserManual_en_08_1.pdf - 第206页

Remote control commands R&S ® LCX Series 206 User Manual 1 179.2260.02 ─ 08 FETCh:ACCuracy? .........................................................................................................206 FETCh:CURRent:D…

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Remote control commands
R&S
®
LCX Series
205User Manual 1179.2260.02 ─ 08
Example: Querying measurement values
The example represents the remote control commands to set the measurement mode,
to query the voltage or current values, and the measurement accuracy.
*************************************************
// Query the voltage and current values
// of the next working point
FETCH:VOLTage[:AC]?
// Response: 2 // 2 V
FETCH:CURRent[:AC]?
// Response: 0.1 // 100 mA
FETCH:VOLTage[:DC]?
// Response: 2 // 2 V
FETCH:CURRent[:DC]?
// Response: 0.1 // 100 mA
*************************************************
// Query the magnitude and phase accuracy
FETCH:ACCuracy?
// Response: 2.123, 1.123 // percent, degree
*************************************************
// Query the primary and secondary
// measurement values of a transformer
FETCh:VOLTage:TRANsformer[:PRIMary]?
// Response: 1 // 1 V
FETCh:VOLTage:TRANsformer:SECondary]?
// Response: 2 // 2 V
Example: Acquiring measurement readings
The example represents the remote control commands of the measurement results.
**************************************************
// Request information on the most recent valid
// measurement readings
FETCh:IMPedance?
// Response: returns Z and Theata d
FETCh[:TYPE]? CPD
// Response: returns the valid values of the
// parallel capacitance and the dissipation factor
FETCh[:TYPE]?
// Response: returns the valid values of
// the primary parameter pair
FETCh subsystem
Remote control commands
R&S
®
LCX Series
206User Manual 1179.2260.02 ─ 08
FETCh:ACCuracy?.........................................................................................................206
FETCh:CURRent:DC?....................................................................................................206
FETCh:CURRent[:AC]?.................................................................................................. 206
FETCh:IMPedance?.......................................................................................................207
FETCh:VOLTage:DC?.................................................................................................... 207
FETCh:VOLTage:TRANsformer:SECondary?....................................................................207
FETCh:VOLTage:TRANsformer[:PRIMary]?......................................................................208
FETCh:VOLTage[:AC]?...................................................................................................208
FETCh[:TYPE]?.............................................................................................................208
FETCh:ACCuracy?
Queries the accuracy of the last measurement.
The R&S LCX returns the accuracy of the impedance (δ|Z|) in percent, and the phase
angle (δΘ) in degrees.
If an invalid value is returned, the instrument reports error code -230.
Return values:
<Magnitude Accuracy
Percentage>
Selects the magnitude accuracy.
<Phase Accuracy
Degree>
Selects the phase accurracy.
Example: See Example "Querying measurement values" on page 205.
Usage: Query only
Manual operation: See "<measurement accuracy>" on page 73
FETCh:CURRent:DC?
Applies to DC measurements only.
Queries the DC current measurement value of the last measurment.
If an invalid value is returned, the instrument reports error code -230.
Return values:
<DC Current
Measurement Value>
Default unit: A
Example: See Example "Querying measurement values" on page 205.
Usage: Query only
FETCh:CURRent[:AC]?
Applies to AC measurements.
Queries the AC current measurement value of the last measurement.
If an invalid value is returned, the instrument reports error code -230.
FETCh subsystem
Remote control commands
R&S
®
LCX Series
207User Manual 1179.2260.02 ─ 08
Return values:
<AC Current
Measurement Value>
Default unit: A
Example: See Example "Querying measurement values" on page 205.
Usage: Query only
FETCh:IMPedance?
Queries the recently measured impedance values Z and Θd.
If an invalid value is returned, the instrument reports error code -230.
Return values:
<Primary
Measurement Value>
Selects the impedance measurement parameter.
Default unit: Ohm
<Secondary
Measurement Value>
Selects the phase angle measurement parameter.
Example: See Example "Acquiring measurement readings" on page 205.
Usage: Query only
FETCh:VOLTage:DC?
Queries the most recent DC voltage measurement value.
If an invalid value is returned, the instrument reports error code -230.
Return values:
<DC Voltage
Measurement Value>
Default unit: V
Example: See Example "Querying measurement values" on page 205.
Usage: Query only
FETCh:VOLTage:TRANsformer:SECondary?
Queries the recently measured secondary transformer voltage value.
If an invalid value is returned, the instrument reports error code -230.
Return values:
<Secondary Voltage
Measurement Value>
Default unit: V
Example: See Example "Querying measurement values" on page 205.
Usage: Query only
FETCh subsystem