NI cDAQ-9174 - Counter Timing Signals

© National Instruments Corporation 59 NI cDAQ-9178/9174 User Guide and Specifications
Figure 55. Pulse Generation for ETS
For information about connecting counter signals, refer to the Default Counter/Timer Routing section.
Counter Timing Signals
The NI cDAQ-9178/9174 feature the following counter timing signals:
• Counter n Source Signal
• Counter n Gate Signal
• Counter n Aux Signal
• Counter n A Signal
• Counter n B Signal
• Counter n Z Signal
• Counter n Up_Down Signal
• Counter n HW Arm Signal
• Counter n Sample Clock Signal
• Counter n Internal Output Signal
• Counter n TC Signal
• Frequency Output Signal
Note All counter timing signals can be filtered.
In this section, n refers to the NI cDAQ-9178/9174 Counter 0, 1, 2, or 3. For example, Counter n Source
refers to four signals—Counter 0 Source (the source input to Counter 0), Counter 1 Source (the source
input to Counter 1), Counter 2 Source (the source input to Counter 2), or Counter 3 Source (the source
input to Counter 3).
Each of these signals supports digital filtering.
OUT
D1 D2 = D1 + ΔDD3 = D1 + 2ΔD
GATE