User manual

Chapter 2 Command System RIGOL
DS4000E Programming Guide 2-217
Parameter
Name
Type
Range
Default
<level> Real
The range of <level> is from (-6 x VerticalScale - Offset)
to (6 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
Return Format
The query returns the trigger level in scientific notation.
:TRIGger:NEDGe:SLOPe
Syntax
:TRIGger:NEDGe:SLOPe <slope>
:TRIGger:NEDGe:SLOPe?
Description
Sets or queries the edge type of the Nth Edge trigger.
Parameter
Name
Type
Range
Default
<slope>
Discrete
{POSitive|NEGative}
POSitive
Remarks
 POSitive: indicates that the oscilloscope triggers at the crosspoint between the rising edge of the input
signal and the preset trigger level.
 NEGative: indicates that the oscilloscope triggers at the crosspoint between the falling edge of the
input signal and the preset trigger level.
Return Format
The query returns POS or NEG.
:TRIGger:NEDGe:SOURce
Syntax
:TRIGger:NEDGe:SOURce <source>
:TRIGger:NEDGe:SOURce?
Description
Sets or queries the source channel of the Nth Edge 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.
Return Format
The query returns CHAN1, CHAN2, CHAN3, or CHAN4.