Slope Field; Count Field - HP 1660CS-Series User Manual

The Scope Trigger Menu

Slope field

Slope field
You can set the trigger slope to trigger on either the positive or negative edge
of the trigger source waveform. When you select the Slope field, the field
toggles between Positive and Negative.
The default selection for the Slope field is Positive.

Count field

The Count field defines the number of trigger events that must occur after
the first trigger qualifier before the oscilloscope will trigger and acquire a
waveform. In edge trigger mode, you can define a positive or negative edge
and the trigger level as a trigger qualifier. When the oscilloscope detects the
trigger qualifier, it will trigger at a user-specified number of edges (Count
field) on the waveform. Count can be set to any integer from 1 to 32,000.
This type of triggering is commonly referred to as "events triggering" or
"delay-by-events triggering". It is very useful when trying to trigger on a
specific pulse in a burst of pulses, with a long time delay, before the next
burst occurs.
The default value for the Count field is 1.
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