Instructions

Chapter 2 Command System RIGOL
DS1000Z-E Programming Guide 2-127
:TRIGger:HOLDoff
Syntax :TRIGger:HOLDoff <value>
:TRIGger:HOLDoff?
Description
Set or query the trigger holdoff time. The default unit is s.
Parameter
Name
Type
Range
Default
<value>
Real
16ns to 10s
16ns
Explanation  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.
Return
Format
The query returns the trigger holdoff time in scientific notation.
Example
:TRIGger:HOLDoff 0.0000002 /*Set the trigger holdoff time to 200ns*/
:TRIGger:HOLDoff? /*The query returns 2.000000e-07*/
:TRIGger:NREJect
Syntax :TRIGger:NREJect <bool>
:TRIGger:NREJect?
Description
Enable or disable noise rejection, or query the status of noise rejection.
Parameter
Name
Type
Range
Default
<bool> Bool {{1|ON}|{0|OFF}} 0|OFF
Explanation
Noise rejection reduces the possibility of noise trigger.
Return
Format
The query returns 1 or 0.
Example
:TRIGger:NREJect ON /*Enable noise rejection*/
:TRIGger:NREJect? /*The query returns 1*/
:TRIGger:POSition?
Syntax :TRIGger:POSition?
Description
Query the position in the internal memory that corresponds to the waveform trigger
position.
Return
Format
The query returns an integer.
 -2 denotes that the instrument is not triggered and there is no trigger position.
 -1 denotes the instrument is triggered outside the internal memory; namely, at this
point, users cannot set the instrument to read the data in the internal memory
starting from the trigger position.
 An integer that is greater than 0 denotes that the return value is the position in the
internal memory that corresponds to the trigger position.
Example :TRIGger:POSition? /*The query returns 100*/