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Reference
3Ć20
Delayed Triggering
The TDS 600A Series oscilloscopes provide a main time base and a delayed
time base. The delayed time base, like the main time base, requires a trigger
signal and an input source dedicated to that signal. You can only use delay
with respect to the main edge trigger and certain classes of main pulse
triggers.
There are two different ways to delay the acquisition of waveforms: delayed
runs after main and delayed triggerable. Only delayed triggerable uses the
delayed trigger system.
Delayed runs after main looks for a main trigger, then waits a userĆdefined
time, and then starts acquiring (see Figure 3Ć12).
Wait
UserĆSpecified
Time
Acquire
Data
Wait for
Main
Trigger
Figure 3Ć12:ăDelayed Runs After Main
Delayed triggerable looks for a main trigger and then, depending on the
type of delayed trigger selected, makes one of the three types of delayed
triggerable mode acquisitions listed below (see Figure 3Ć13).
Wait for
Main
Trigger
Delayed Triggerable
After Time
Wait for
Delayed
Trigger
Event
Acquire
Data
Wait the
UserĆSpecified
Number of
Delayed Trigger
Events
Wait
UserĆSpecified
Time
Wait
UserĆSpecified
Time
Wait the
UserĆSpecified
Number of
Delayed Trigger
Events
Delayed Triggerable
After Events
Delayed Triggerable
After Events/Time
Figure 3Ć13:ăDelayed Triggerable