RIGOL Chapter 2 Command System
2-160 MSO1000Z/DS1000Z Programming Guide
:TRIGger:HOLDoff
:TRIGger:HOLDoff <value>
:TRIGger:HOLDoff?
Set or query the trigger holdoff time. The default unit is s.
 Trigger holdoff can be used to stably trigger the complex waveforms (such as pulse
series). Holdoff time is the time that the oscilloscope waits before re-arming the
trigger circuitry. The oscilloscope will not trigger until the holdoff time expires.
 When the trigger type is video, timeout, setup/hold, Nth edge, RS232, I2C, or SPI,
this setting will be not available.
The query returns the trigger holdoff time in scientific notation.
:TRIGger:HOLDoff 0.0000002 /*Set the trigger holdoff time to 200ns*/
:TRIGger:HOLDoff? /*The query returns 2.000000e-07*/
:TRIGger:NREJect
:TRIGger:NREJect <bool>
:TRIGger:NREJect?
Enable or disable noise rejection, or query the status of noise rejection.
 Noise rejection reduces the possibility of noise trigger.
 This command is not available when the trigger source is a digital channel.
The query returns 1 or 0.
:TRIGger:NREJect ON /*Enable noise rejection*/
:TRIGger:NREJect? /*The query returns 1*/