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Input Signal Types
3-3
Input Signal Types
CNT1:
CNT2:
m+31
m+76
3-3-1
Phase Differential
Phase A
Phase B
Multiplication x1
Multiplication x2
Multiplication x4
Multiplication x1
56
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.
15 14 13 12 11 10 9
8
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.
Forward rotation (CW)
!
"
!
"
#
$
%
&
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.
7
6
5
4
3
2
1
0 = Phase Differential (multiplication x1)
1 = Phase Differential (multiplication x2)
2 = Phase Differential (multiplication x4)
4 = Up & down
8 = Pulse & Direction
Incremental enc oder
Reverse rotation (CCW)
!
#
$
#
'
'
0
Signal Type:
Counter
Input A
A
Input B
B
Input Z
Z
(Reset i nput)
"
!
&
%
$
#
"
!
Section 3-3
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