Rockwell Automation 1769-HSC Compact High Speed Counter Module - Manual (Page 27)

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 27
Module Operation Chapter 2
Figure 6 - Operation Using Various Direction Inhibit and Direction Invert Settings
Quadrature
Encoder
Input A
A
Forward Rotation
Input B
Input Z
B
Z
Reverse Rotation
A
B
X1 Count Pulse
X2 Count Pulse
X4 Count Pulse
DirectionInhibit = 0; DirectionInvert = 0
X1 Count Pulse
X2 Count Pulse
X4 Count Pulse
DirectionInhibit = 0; DirectionInvert = 1
X1 Count Pulse
X2 Count Pulse
X4 Count Pulse
DirectionInhibit = 1; DirectionInvert = 0
X1 Count Pulse
X2 Count Pulse
X4 Count Pulse
DirectionInhibit = 1; DirectionInvert = 1