Triggering
3
2
1
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
App
Index
6-29
IM 701310-01E
Explanation
This function enables the DL9000 to trigger if the relationship between the condition-true
or condition-false period of a single trigger source and the specified reference time is
true, when the input signal level meets the specified qualifications.
Time Span Mode and Reference Time
These are the same as with the pulse width trigger. See section 6.10 for details.
Trigger Source
You can set the trigger source to a channel from CH1 to CH4 or EXT.
Triggering on an External Signal
To trigger on an external signal received through the rear panel TRIG IN terminal, set the
trigger source to EXT.
Polarity
You can select when to compare the pulse width with the reference time, based on the
trigger source signal polarity with respect to the trigger level.
Pos
When the signal is high
Neg
When the signal is low
IN
When the trigger source level is within the specified voltage range (when window
comparator is ON)
OUT
When the trigger source level is outside the specified voltage range (when window
comparator is ON)
Window Comparator
This is the same as with the pulse width trigger. See section 6.10 for details.
Qualification
Set the state of each signal to H, L, or X that is used to enable the trigger function.
H
When the signal is high
L
When the signal is low
IN
When the signal level is within the specified voltage range
(when the window comparator is ON)
OUT
When the signal level is outside the specified voltage range
(when the window comparator is ON)
X
Not used as a trigger condition (Don’t care)
Logic
Select the logic to apply to the signal states: AND or OR.
AND
When the states of all set signals match
OR
When the state of any set signal matches
Trigger Level
This is the same as the edge trigger. See section 6.6 for details.
Note
You cannot set the qualification for the trigger source signal.
6.11 Activating a Trigger on a Conditional Pulse Width
