Data Translation DT340, Руководство по началу работы

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Chapter 5
36
Connecting Counter/Timer Signals
The DT340 board with the STP340 screw terminal panel provides user
counter/timers that you can use to perform the following operations:
• Event counting,
• Frequency measurement, and
• Pulse output (rate generation, one-shot, and repetitive one-shot).
Connecting Event Counting Signals
Figure 6 shows one example of connecting event counting signals to
the STP340 screw terminal panel using user counter 0. In this
example, rising clock edges are counted while the gate is active.
Figure 6: Connecting Event Counting Applications to the STP340 Screw
Terminal Panel (Shown for Clock Input 0 and External Gate 0)
STP340 Panel
TB2
Signal Source
Digital Ground
User Clock Input 0
TB12
TB4
Digital Ground
Gate 0
External
Gating
Switch
TB33
Shield
TB1