Programming instructions

Chapter 8 Controlling Your Acquisition with Triggers
© National Instruments Corporation 8-3 LabVIEW Data Acquisition Basics Manual
Figure 8-2 shows a timeline of how digital triggering works for
post-triggered data acquisition. In this example, an external device sends a
trigger, or TTL signal, to your DAQ device. As soon as your DAQ device
receives the signal, and your trigger conditions are met, your device begins
acquiring data.
Figure 8-2.
Digital Triggering with Your DAQ Device
External
DAQ
Digital Trigger
Signal
Analog Data
DAQ Device waits for digital trigger conditions.
Then …
Device
Device
DAQ
Device
External
Device