User manual

Chapter 2 Command System RIGOL
DS4000E Programming Guide 2-225
 PGLess: indicates that the oscilloscope triggers when the positive slope time of the input signal is
greater than the lower limit of the specified time (refer to the :TRIGger:SLOPe:TLOWer command) and
smaller than the upper limit of the specified time (refer to the :TRIGger:SLOPe:TUPPer command).
 NGLess: indicates that the oscilloscope triggers when the negative slope time of the input signal is
greater than the lower limit of the specified time (refer to the :TRIGger:SLOPe:TLOWer command) and
smaller than the upper limit of the specified time (refer to the :TRIGger:SLOPe:TUPPer command).
Return Format
The query returns PGR, PLES, NGR, NLES, PGL, or NGL.
:TRIGger:SLOPe:WINDow
Syntax
:TRIGger:SLOPe:WINDow <window>
:TRIGger:SLOPe:WINDow?
Description
Sets or queries the vertical window type of Slope trigger.
Parameter
Name Type Range Default
<window> Discrete {TA|TB|TAB} TA
Remarks
Different vertical windows correspond to different adjustment modes of the trigger level (use TRIGGER
LEVEL).
 TA: only adjusts the upper limit of the trigger level; the lower limit of the trigger level remains
unchanged.
 TB: only adjusts the lower limit of the trigger level; the upper limit of the trigger level remains
unchanged.
 TAB: adjusts the upper and lower limits of the trigger level at the same time; the trigger level deviation
(the difference between the upper limit and lower limit) remains unchanged.
Return Format
The query returns TA, TB, or TAB.