Measurement Computing Data Translation DT3034, User Manual

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Chapter 4
56
Figure 18: Cascading Counters to the DT740
(Shown for Rate Generation Using Counters 0 and 1 and External Gate 0)
Figure 19: Cascading Counters for the DT740
(Shown for One-Shot Using Counters 0 and 1 and External Gate 1)
DT740 Panel
TB59
Signal Source
Digital Ground
User Clock Input 0
TB61
TB60
Digital Ground
Gate 0
External
Gating
Switch
TB58
TB62
User
Counter
Output 0
User Clock
Input 1
TB57
TB108
Digital Shield
Note that you can also internally cascade counters using
software; if you internally cascade the counters, you do
not have to make the external cascading connections. In
this example, counter 1 gate is logic high.
DT740 Panel
TB58
Signal Source
Digital Ground
User Clock Input 0
TB61
TB64
Digital Ground
Gate 1
One-Shot
Trigger
TB59
TB62
User
Counter
Output 0
User Clock
Input 1
TB57
TB108
Digital Shield