National Instruments 3.21E+04 用户手册

Chapter 3     Hardware Overview

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AT-MIO/AI E Series User Manual

Figure 3-9.  Below-Low-Level Analog Triggering Mode

In above-high-level analog triggering mode, the trigger is 
generated when the signal value is greater than highValue.  
LowValue is unused.

Figure 3-10.  Above-High-Level Analog Triggering Mode

In inside-region analog triggering mode, the trigger is generated 
when the signal value is between the lowValue and the highValue.

Figure 3-11.  Inside-Region Analog Triggering Mode

Trigger

Trigger

Trigger