Chapter 5 To Trigger the Oscilloscope RIGOL
MSO7000/DS7000 User Guide 5-19
Note: Only one edge (rising or falling edge) can be specified in the pattern. If one
edge item is currently defined and then another edge item is defined in another
channel in the pattern, then a prompt message "Invalid input" is displayed. Then the
latter defined edge item will be replaced by X.
All Bits:
Press All Bits to set the patterns of all channels to the currently selected pattern.
Trigger Mode:
In the trigger control area (Trigger) on the front panel, press Mode to quickly switch
the current trigger mode. For details, refer to descriptions in "Trigger Mode".
Trigger Parameter Setting:
Set the trigger parameters (trigger holdoff and noise rejection) under this trigger
type. For details, refer to descriptions in "Trigger Holdoff" and "Noise
Rejection".
Trigger LEVEL/Threshold Level:
Rotate the Trigger LEVEL knob to adjust the trigger level/threshold level. Refer
to "Trigger LEVEL/Threshold Level". The current trigger level/threshold level
value is displayed at the upper-right corner of the screen.
Duration Trigger
In duration trigger, the instrument identifies a trigger condition by searching for the
duration of a specified pattern. This pattern is a logical "AND" combination of the
channels. Each channel can be set to H (high), L (low), or X (don't care). When the
duration (△T) of this pattern meets the preset time, the oscilloscope initiates a
trigger, as shown in the figure below.
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