Figure 8.25 Rs232 Trigger Setting Menu - Rigol DHO900 Series User Manual

Triggering the Oscilloscope
Trigger Type
Click or tap the drop-down button of Type to select "RS232".
After a trigger type is selected, the current trigger setting information (including the
trigger type, source, and level) is displayed in the trigger information label at the top
of the screen, as shown in the figure below. The information will change based on the
trigger settings.
Source Selection
Click or tap the Source drop-down button to select CH1-CH4 or D0-D15. For details,
Trigger Source
refer to
information label at the top of the screen.
Only when you select the channel that has signal inputs as the trigger source, can you
obtain a stable trigger.
Polarity
Select the polarity of data transmission in the Polarity item. It can be set to "Positive"
or "Negative"
Trigger Condition
Set the desired trigger condition in the When item.
DHO900 User Guide
96

Figure 8.25 RS232 Trigger Setting Menu

. The selected trigger source is indicated in the trigger
.
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