Input Signal Types
Section 3-3
33
3-3
Input Signal Types
The type of input you require for your application is selected by means of four bits
in the Signal Type Word in DM. For every Counter the Signal Type can be selected
individually.
3-3-1
Phase Differential
Phase Differential Signals are connected to the inputs A, B and Z of every Coun-
ter. The count direction is determined by the phase angle between input A and
input B. If signal A leads to B, the counter increments. If signal B leads to A, the
counter decrements.
Multiplication x1
By default the Counter is configured for Multiplication by 1. If the counter is up-
counting (signal A leads to signal B) pulses are taken into account by the Counter
on the rising edges of signal A. If the Counter is down-counting pulses are taken
into account on the falling edges of input A.
CNT3:
CNT4:
m+51
m+71
Signal Type:
0 = Phase Differential (multiplication x1)
1 = Phase Differential (multiplication x2)
2 = Phase Differential (multiplication x4)
4 = Up & down
8 = Pulse & Direction
CNT1:
CNT2:
m+11
m+31
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
Input A
Input Z
Input B
A
B
Z
(Reset Input)
Incremental encoder
Counter
Multiplication x1
Multiplication x2
Multiplication x4
Phase A
Phase B
Forward rotation (CW)
Reverse rotation (CCW)
1
2
3
4
5
6
1
2
3
1
2
3
4
5
6
7
8
9 10 11 12
11 10 9
8
7
6
5
4
3
2
1
0
5
4
3
2
1
0
2
1
0
Содержание CJ1W-CTL41-E
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