User manual

Chapter 2 Command System RIGOL
DS4000E Programming Guide 2-213
Parameter
Name
Type
Range
Default
<level> Real
The range of <level> is from (-6 x VerticalScale - Offset)
to (5.98 x VerticalScale - Offset) (relative to the vertical
center of the screen).
Wherein, VerticalScale is the vertical scale of the source
channel, refer to the :CHANnel<n>:SCALe command;
Offset is the vertical position of the source channel, refer
to the :CHANnel<n>:OFFSet command.
0
Remarks
The lower limit of the trigger level of Runt trigger must be smaller than the upper limit of the current trigger
level (refer to the :TRIGger:RUNT:ALEVel command).
Return Format
The query returns the lower limit of the trigger level in scientific notation.
:TRIGger:RUNT:POLarity
Syntax
:TRIGger:RUNT:POLarity <polarity>
:TRIGger:RUNT:POLarity?
Description
Sets or queries the polarity of Runt trigger.
Parameter
Name
Type
Range
Default
<polarity> Discrete {POSitive|NEGative} POSitive
Remarks
 POSitive: indicates the positive polarity. The oscilloscope triggers on the positive polarity of Runt
trigger.
 NEGative: indicates the negative polarity. The oscilloscope triggers on the negative polarity of Runt
trigger.
Return Format
The query returns POS or NEG.
:TRIGger:RUNT:SOURce
Syntax
:TRIGger:RUNT:SOURce <source>
:TRIGger:RUNT:SOURce?
Description
Sets or queries the source channel of Runt trigger.
Parameter
Name
Type
Range
Default
<source> Discrete {CHANnel1|CHANnel2|CHANnel3|CHANnel4} CHANnel1
Remarks
Channels that are not currently turned on can also be selected as the trigger source.