Up and Down Pulses Mode

In this mode, when Invert Counter Direction is disabled, the following occurs:
  • The counter increments on the rising edge of pulses that are applied to input A.
  • The counter decrements on the rising edge of pulses that are applied to input B.
Up and Down Pulse Mode (Invert Counter Direction Disabled)
When Invert Counter Direction is enabled, the following occurs:
  • The counter decrements on the rising edge of pulses that are applied to input A.
  • The counter increments on the rising edge of pulses that are applied to input B.
Up and Down Counting
Invert Counter Direction Setting
Input A
Input B
Change in Count Value
Disabled
Rising edge
0, 1
1
0, 1
Rising edge
-1
Enabled
Rising edge
0, 1
-1
0, 1
Rising edge
1
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