National Instruments E Series - Figure 3-7. Inside-Region Analog Triggering Mode; Figure 3-8. High-Hysteresis Analog Triggering Mode

Chapter 3 Hardware Overview
 National Instruments Corporation 3-11 DAQCard E Series User Manual
In inside-region analog triggering mode, the trigger is generated
when the signal value is between the lowValue and the highValue .
In high-hysteresis analog triggering mode, the trigger is generated
when the signal value is greater than highValue , with the hysteresis
specified by lowValue .
Figure 3-7. Inside-Region Analog Triggering Mode
Figure 3-8. High-Hysteresis Analog Triggering Mode
highValue
Trigger
lowValue
highValue
Trigger
lowValue