Chapter 2 Function Reference — Config_ATrig_Event_Message
NI-DAQ FRM for PC Compatibles 2-70
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National Instruments Corporation
Figure 2-3. Analog Trigger Event
Config_ATrig_Event_Message is a high-level function for NI-DAQ event messaging.
Because this function uses the current inputRange and polarity settings to translate
trigLevel and windowSize into binary units, you should not call AI_Configure and change
these settings after you have called Config_ATrig_Event_Message. For more information
on NI-DAQ event messaging, see the low-level function Config_DAQ_Event_Message.
PN
Time
trigLevel
+ windowSize
trigLevel
- windowSize
trigLevel
P: positive trigger point
N: negative trigger point