RIGOL MSO/DS1000Z Series - Manual (Page 104)

RIGOL Chapter 5 To Trigger the Oscilloscope
5-30 MSO1000Z/DS1000Z User’s Guide
Nth Edge Trigger (Option)
Trigger on the nth edge that appears after the specified idle time. For example, in the
waveform shown in the figure below, the instrument should trigger on the second
rising edge after the specified idle time (the time between two neighbouring rising
edges) and the idle time should be set to P<Idle Time<M. Wherein, M is the time
between the first rising edge and its previous rising edge and P is the maximum time
between the rising edges participate in the counting.
M
P<Idle Time<M
Edge Type=
Edge Num=2
P
Figure 5-12 Nth Edge Trigger
Trigger Type:
Press Type to open the trigger type list. Rotate to select "Nth" and press down
. At this point, the trigger setting information is displayed at the upper right corner
of the screen.
For example,
. The trigger type is Nth edge trigger; the trigger
source is CH1; the trigger level is 0.00 V.
Source Selection:
Press Source to open the signal source list and select CH1-CH4 or D0-D15. For the
details, please refer to the introduction in " Trigger Source". The current trigger
source is displayed at the upper right corner of the screen.
Note: Select channel with signal input as trigger source to obtain stable trigger.
Edge Type:
Press Slope to select the kind of edge of the input signal on which the oscilloscope
triggers.

: trigger on the rising edge of the input signal when the voltage level meets
the specified trigger level.
 : trigger on the falling edge of the input signal when the voltage level meets
the specified trigger level.