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I2679-4.0 en
The first interval timer can be compared to the trigger holdoff feature described
earlier. The second interval timer defines a period in which a trigger event must
occur. If not, it is not a related trigger event.
Interval timer - NotBetween
The inverse function of the Between mode of the interval timer is the
NotBetween mode. Now the second interval is not used to define a trigger-safe
area, but to denote a trigger-restricted area. A trigger event within the first
interval is valid. A trigger event within the second interval resets the trigger logic.
A trigger is also generated when both interval timers expire.
Figure 10.15: Interval timer - NotBetween
The following sequence explains how this mode functions:
1
The first trigger event starts interval timer 1.
2
Interval 1
3
If a trigger event occurs within the first interval, a trigger is generated.
4
End of sweep.
5
The first new trigger event starts interval timer 1.
6
Interval timer 1 expires and interval timer 2 is started.
7
A trigger event occurs within the second interval. Interval timer 1 is
restarted.
8
Interval 2
9
Interval timer 1 expires and interval timer 2 is started.
10 Interval timer 2 expires and a trigger is generated.
A Trigger
GEN5i
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