28 Rockwell Automation Publication 2080-UM004D-EN-E - March 2018
Chapter 4 High Speed Counter – 2080-MOT-HSC
Up Counter
Pulses on A will cause the up counter (Counter 0). Also Pulses on B will cause the
up counter (Counter 1).
Counter with External Direction
Pulses on A cause the counter to increment when B is low and decrement when B
is high. When B is open or undriven, the counter will increment. See Pulse
External Direction Counting on page 29.
11 Quadrature X2 counter (phased inputs A and B) with external reset and hold.
12 Down Counter.
13 Down Counter with external reset and hold.
Input Operational Modes
Mode Description
Input A
Input B
Input Z
Encoder or Sensor
Increment Pulse
(count up)
1
2
3
4
5
6
7
8
Counter 0
(Input A)
PresentCount 1
Encoder or Sensor
Increment Pulse
(count up)
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