GW Instek AFG-3000 Series - Manual (Page 239)

REMOTE INTERFACE
239
Parameter 2 mHz~ 20 kHz
Example SOUR1:PWM:INT:FREQ MAX
Sets the frequency to the maximum value.
Query Syntax SOURce[1]:PWM:INTernal:FREQuency?
Return Parameter Returns the frequency in
Hz.
Example SOUR1:PWM:INT:FREQ? MAX
+2.0000E+04
Returns the modulating frequency. (20kHz)
SOURce[1]:PWM:DUTY
Source Specific
Command
Description Sets or queries the duty cycle deviation. The
default duty cycle is 50%.
Note The duty cycle is limited by period, edge time and
minimum pulse width.
The duty cycle deviation of an external source is
controlled using the ±5V MOD INPUT terminal on
the rear panel. A positive signal (>0~+5V) will
increase the deviation (up to the set duty cycle
deviation), whilst a negative voltage will reduce
the deviation.
Syntax SOURce[1]:PWM:DUTY {< percent>|minimum
|maximum}
Parameter 0%~100% (limited, see
above)
Example SOUR1:PWM:DUTY +3.0000E+01
Sets the duty cycle to 30%.
Query Syntax SOURce[1]:PWM:DUTY?
Return Parameter Returns the deviation
in %.