Advantech iDAQ-801 handleiding
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19 iDAQ-801_841 User Manual
Chapter 3 Function Details
3.3 Trigger and Timing Signal Output
Analog Trigger
One of the analog input channel can be selected as the signal source for the speci-
fied trigger signal. The trigger signal can be configured as rising edge active or falling
edge active. In addition, user can configure the threshold level and the hysteresis
value for an analog trigger. The threshold level specifies the analog input voltage
level where the trigger occurs. The hysteresis value prevents unwanted triggers due
to noisy signals.
A rising edge active analog trigger occurs when the signal crosses the threshold level
from below. And another trigger occurs only if the signal has crossed the voltage
specified by the threshold level minus the hysteresis value from above before it
crosses the threshold level from below again. This is shown in Figure 3.14.
Figure 3.14 Rising edge active analog trigger.
A falling edge active analog trigger occurs when the signal crosses the threshold
level from above. And another trigger occurs only if the signal has crossed the volt-
age specified by the threshold level plus the hysteresis value from below before it
crosses the threshold level from above again. This is shown in Figure 3.15.
Figure 3.15 Falling edge active analog trigger.
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Productinformatie
| Merk | Advantech |
| Model | iDAQ-801 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 3491 MB |
