User manual

Chapter 2 Command System RIGOL
DS4000E Programming Guide 2-223
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 of Slope trigger, refer to
the :CHANnel<n>:SCALe command; Offset is the vertical
position of the source channel of Slope trigger, refer to
the :CHANnel<n>:OFFSet command.
0
Remarks
The lower limit of the trigger level of Slope trigger must be smaller than the upper limit of the current
trigger level (refer to the :TRIGger:SLOPe:ALEVel command).
Return Format
The query returns the lower limit of the trigger level in scientific notation.
:TRIGger:SLOPe:SOURce
Syntax
:TRIGger:SLOPe:SOURce <source>
:TRIGger:SLOPe:SOURce?
Description
Sets or queries the source channel of Slope 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.
:TRIGger:SLOPe:TLOWer
Syntax
:TRIGger:SLOPe:TLOWer <time>
:TRIGger:SLOPe:TLOWer?
Description
Sets or queries the time lower limit of Slope trigger when the trigger condition is "PGReater", "NGReater",
"PGLess", or "NGLess" (refer to the :TRIGger:SLOPe:WHEN command). The default unit is s.
Parameter
Name
Type
Range
Default
<time> Real
When the trigger condition is "PGReater" or "NGReater":
10 ns to 1 s
When the trigger condition is "PGLess" or "NGLess": 10
ns to 999 ms
1 us