Advantech iDAQ-731, User Manual

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31 iDAQ-731_751_763D User Manual
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3.6.2 Streaming Digital Output Generation
For a streaming generation, the number of samples to be generated is set to infinite.
The generation starts when a start trigger is received and continues until a stop trig -
ger is received as shown in Figure 3.25.
Figure 3.25 Streaming generation.
Both the start trigger and the stop trigger can come from a software command or a
hardware signal. If a hardware signal is used, the start (for the start trigger) or the
stop (for the stop trigger) of the generation can also be delayed. Refer to the device
specifications for possible signal sources.
3.6.3 Retriggerable Digital Output Generation
The generation can be retriggerable. When re-trigger is enabled, after the generation
stops, it restarts whenever the required trigger is received, and reconfiguration of the
generation is not required.
Figures 3.26 and Figure 3.27 show examples of one-buffered generation with retrig
-
ger and streaming generation with retrigger, respectively. A start trigger is ignored
while the generation is in progress, and a stop trigger is ignored while the generation
is stopped.
Figure 3.26 One-buffered generation with retrigger.