National Instruments 3.21E+04 Manual De Usuario
Chapter 3 Hardware Overview
AT-MIO/AI E Series User Manual
3-18
National Instruments Corporation
In high-hysteresis analog triggering mode, the trigger is generated
when the signal value is greater than highValue, with the
hysteresis specified by lowValue.
when the signal value is greater than highValue, with the
hysteresis specified by lowValue.
Figure 3-12. High-Hysteresis Analog Triggering Mode
In low-hysteresis analog triggering mode, the trigger is generated
when the signal value is less than lowValue, with the hysteresis
specified by highValue.
when the signal value is less than lowValue, with the hysteresis
specified by highValue.
Figure 3-13. Low-Hysteresis Analog Triggering Mode
The analog trigger circuit generates an internal digital trigger based
on the analog input signal and the user-defined trigger levels. This
digital trigger can be used by any of the timing sections of the
DAQ-STC, including the analog input, analog output, and
general-purpose counter/timer sections. For example, the analog
input section can be configured to acquire n scans after the analog
input signal crosses a specific threshold. As another example, the
analog output section can be configured to update its outputs
whenever the analog input signal crosses a specific threshold.
on the analog input signal and the user-defined trigger levels. This
digital trigger can be used by any of the timing sections of the
DAQ-STC, including the analog input, analog output, and
general-purpose counter/timer sections. For example, the analog
input section can be configured to acquire n scans after the analog
input signal crosses a specific threshold. As another example, the
analog output section can be configured to update its outputs
whenever the analog input signal crosses a specific threshold.
highValue
Trigger
lowValue
highValue
Trigger
lowValue