Measurement Computing PCI-DAS6030 User Manual page 26

PCI-DAS6030 & PCI-DAS6032 User's Guide
Gate Below
Data acquisition is enabled whenever ATRIG goes below the THRESH_LO level. Acquisition is suspended
whenever the ATRIG signal goes above the THRESH_LO level. This is a level-sensitive gating mode.
Trigger
Acquired Data
Gate Negative Hysteresis
Data acquisition is enabled whenever ATRIG goes above the THRESH_HI level. Acquisition is suspended
whenever the ATRIG signal goes below the THRESH_LO level. The hysteresis level is set by THRESH_LO.
This is a level-sensitive gating mode.
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0
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Trigger
Acquired Data
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0
-1
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+1
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-1
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Figure 22. Gate Below
Figure 23. Gate Negative Hysteresis
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Functional Details
Thresh_LO
Thresh_HI
Thresh_LO