BNC 645 - Manual (Page 161)

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SWEep:SPACing {LINear ︱ LOGarithmic}
Specify the spacing for the sweep. The default sweep mode is Linear, which
waveform generator sweeps the frequency with spacing calculated in a linear
function. In logarithmic sweep mode, the waveform generator sweeps with
spacing calculated in a logarithmic function.
SWEep:SPACing?
Query the spacing used in sweeps. “LIN” or ”LOG” string indicating the spacing
will be returned.
SWEep:TIME {<seconds>︱MINimum︱MAXimum}
Specify the time duration in seconds to sweep from the start frequency to the
stop frequency. The range is from 1 ms to 500 seconds and the default is 1
second.
The number of discrete frequency points in the sweep will be calculated
according to the specified sweep time.
SWEepe:TIME?
Query the sweep time. The sweep time in seconds will be returned.
SWEep:STATe{OFF︱ON}
Disable or enable the sweep mode. The default is Off. To avoid multiple
waveform changes, you can enable it after setting up the modulation
parameters.
Only one type of modulation can be activated at one time. Also when Sweep is
activated, modulation or burst mode will be disabled.
SWEep:STATe?
Query the sweep state. “0” (OFF) or ”1” (ON) will be returned.
SYSTem:ERRor?
Query and clear one error from the waveform generator’s error queue. Up to 20
errors can be stored in the queue. Errors are retrieved in first-in-first-out (FIFO)
order. Each error string may contain up to 255 characters. The waveform
generator beeps every time it detects an error unless the beeper is turned off.