National Instruments Data Acquisition Device E Series - Manual (Page 133)

Chapter 10 Triggering
E Series User Manual 10-4 ni.com
Analog Trigger Types
You can configure the analog trigger circuitry to different triggering
modes. Refer to the
Triggering with an Analog Source section for more
information.
Level Triggering
You can configure the analog trigger circuitry to detect when the analog
signal is below or above a level you specify.
In below-level analog triggering mode, the trigger is generated when the
signal value is less than Level, as shown in Figure 10-3.
Figure 10-3. Below-Level Analog Triggering Mode
In above-level analog triggering mode, the trigger is generated when the
signal value is greater than Level, as shown in Figure 10-4.
Figure 10-4. Above-Level Analog Triggering Mode
Level
Analog Comparison Event
Level
Analog Comparison Event