X2 multiplying encoder mode, X4 multiplying encoder mode, Example – Rockwell Automation 1734-IK Encoder/Counter Modules User Manual User Manual
Page 14: Ab quadrature encoder 1734-vhsc input a input b, A input b input x1 count x2 count x4 count, Forward rotation reverse rotation input z, Z (store count) (gate / reset )
Publication 1734-UM006B-EN-P - August 2005
1-4 About the Modules
EXAMPLE
Example of Multiplying Encoder Mode X1
X1 Multiplying Encoder Mode
Quadrature input signals are used to count on the leading (up
direction) OR trailing (down direction) edge of A for a bidirectional
count, and channel B is used to determine the direction.
[ B = leads A, Count = Down; B = follows A, Count = Up ]
X2 Multiplying Encoder Mode
Quadrature input signals are used to count on leading AND trailing
edges of A for a bidirectional count, and channel B is used to
determine the direction.
[ B = leads A, Count = Down; B = follows A, Count = Up ]
X4 Multiplying Encoder Mode
Quadrature input signals are used to count on leading AND trailing
edges of A AND B for a bidirectional count, and channel B is used to
determine the direction.
[ B = leads A, Count = Down; B = follows A, Count = Up ]
A
B
Quadrature Encoder
1734-VHSC
Input A
Input B
1
2
3
1
3
5
2
4
6
1
3
5
2
4
6
7
10
9
8
12
11
A Input
B Input
X1 Count
X2 Count
X4 Count
2
1
0
5
3
1
4
2
0
11
9
7
10
8
6
5
2
3
4
0
1
Forward Rotation
Reverse Rotation
Input Z
Outputs
Updated
Continuously
Z (Store Count)
(Gate / Reset )