Rohde & Schwarz SMU200A - Page 633

Remote Control Commands
R&S
®
SMU200A
613Operating Manual 1007.9845.32 ─ 15
Return values:
float<Free>
MMEM:CDIR 'D:/user/waveform'
sets the default directory to D:/user/waveform.
BB:ARB:WAV:FREE?
queries the free disk space in directory D:/user/waveform.
Example:
Query onlyUsage:
[:SOURce<hw>]:BB:ARB:WAVeform:HDDStreaming:BLEVel?
Queries the filling level of the streaming buffer.
During normal operation, the streaming buffer level should have a value of 90% .. 100%.
Buffer level around 0% indicates a buffer underrun and the signal processing will be
interrupted.
Adjustment in the parameter value or state usually results in short decreasing of the
streaming buffer level but this buffer state should not be mislead with buffer underrun.
Return values:
float<Blevel>
BB:ARB:WAV:HDDS:STAT ON
enables HDD streaming.
BB:ARB:WAV:HDDS:BLEV?
queries the streaming buffer level.
Response: 94%
Example:
Query onlyUsage:
[:SOURce<hw>]:BB:ARB:WAVeform:HDDStreaming:STATe <State>
Enables/disables the streaming of modulation data direct form the hard drive (HDD).
HDD streaming is recommended for processing of large files that require more ARB
memory than the currently installed one.
Parameters:
0|1|OFF|ON
ON
<State>
*RST:
BB:ARB:WAV:HDDS:STAT ON
enables HDD streaming.
Example:
[:SOURce<hw>]:BB:ARB:WAVeform:POINts?
The command queries the number of samples in the waveform file selected using com-
mand :ARB:WAV:SEL. Only the file name has to be entered. Only files with the file
extension *.wv will be read out.
SOURce Subsystem