BNC 645 - Manual (Page 54)

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displayed on the screen.
b. Press the softkey under PWM Freq and use numeric keypad or
the knob with the cursor keys to set the desired modulating
frequency.
5. Press the softkey under Width Dev and set the desired value for
width deviation by the numeric keypad or the knob with the cursor
keys.
6. Press the Graph button to view all the waveform parameters.
Remote interface operation
Use the following commands for PWM:
FUNC PULSe
VOLTage {︱MINimum|MAXimum}
VOLTage:OFFSet {︱MINimum|MAXimum}
PULSe:PERiod {|MINimum|MAXimum}
FUNCtion:PULSe:WIDTh {|MINimum|MAXimum}
FUNCtion:PULSe:TRANsition {|MINimum|MAXimum}
FUNCtion:PULSe:DCYCLe{|MINimum|MAXimum}
PWM:INTernal:FUNCtion
{SINusoid|SQUare|RAMP|NRAMp|TRIangle|NOISe|USER}
PWM:INTernal:FREQuency {|MINimum|MAXimum }
PWM:DEViation {|Minimum|Maximum}
PWM:DEViation:DCYCLe {|Minimum|Maximum}
PWM:SOURce {INTernal|EXTernal}
PWM:STATe ON
4.12 Frequency Sweep
Frequency Sweep provides the capability to generate a waveform which
gradually steps from a start frequency to a stop frequency at a specified
rate. It can sweep up or down in frequency with logarithmic or linear
spacing. Only sine, square, ramp and arbitrary waveforms are allowed to
work with frequency sweep.