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3 Operation and Configuration
3-3-3
Pulse & Direction
In this configuration, count pulses are applied to input A. The direction of counting is controlled by the
level of the signal applied to input B. If input B is high, the Counter increments on the rising edges of
input A. If input B is low, the Counter decrements on the rising edges of input A.
Count pulse
Direction control:
High = Increment
Low = Decrement
Additional Information
For Counter Reset options refer to 3-6 Reset Counter.
3-16
Incremental encoder
or other pulse
Count pulse
generator
Sensor or
switch
Direction
control
1
2
3
CJ-series High-speed Counter Units Operation Manual for NJ-series CPU Unit(W492)
Counter
Input A
Input B
Input Z
2
1
2
3
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