Measurement Computing PCI-DAS6031 User Manual page 28

PCI-DAS6031 & PCI-DAS6033 User's Guide
Gate Above
Data acquisition is enabled whenever ATRIG goes above the THRESH_HI level. Acquisition is suspended
whenever the ATRIG signal goes below the THRESH_HI level. This is a level-sensitive gating mode.
+2
+2
+1
+1
0
0
-1
-1
-2
-2
Trigger
Result
+2
+1
0
-1
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
Figure 4-18. Gate Above
+2
+1
0
-1
-2
+1
0
-1
-2
Figure 4-19. Gate Below
4-11
Functional Details
Thresh_HI
Thresh_LO