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Wiring Inputs
The following diagram shows the input connectors with pin numbers and corresponding input numbers
Wiring Digital Inputs
Inputs may be wired as either pnp (positive logic) or npn (negative logic).
Input 36 can function as a high-speed counter, frequency measurer, or general purpose digital input (set in software).
Input 37 can function either as a counter reset input or general purpose digital input (set in software).
For correct operation of the digital inputs, connect the n/p pin according to the following figures.
For information on connecting RG pins, refer to Connecting RG Pins.
pnp (positive logic) inputs 32-39
+V
0V
1
2
3
4
5
15 16 17 18 19 20 21 22 23 24 25 26 27 28
npn (negative logic) inputs 32-39
+V
0V
1
2
3
4
5
15 16 17 18 19 20 21 22 23 24 25 26 27 28
Wiring Analog Inputs
The following diagram shows the 2-wire and 4-wire current connection.
Use shielded twisted pair cable.
Connect shields to the earth ground at the signal's source.
Unitronics
32
1
2
15 16 17 18 19 20 21 22 23 24 25 26 27 28
RG
‡
*
6
7
8
9
10
11
12
13
14
‡
*
HSC Input
Counter Reset
RG
‡
*
6
7
8
9
10
11
12
13
14
‡
*
HSC Input
Counter Reset
Circuit Protection Device
+V
0V
Expansion
Adapter
+V
0V
Power
33
34
35
36
37
38
39
n/p
n/p RG
3
4
5
6
7
8
9
10
11
12
13
40
41
42
43
44
45
46
47
AI2
Power
Supply
1
2
3
4
5
6
7
8
15 16 17 18 19 20 21 22 23 24 25
EX-D16A3-TO16
RG
14
AI1 AI0
pnp (positive logic) inputs 40-47
+V
0V
1
2
3
4
5
6
7
8
9
10
15 16
17 18 19 20 21 22 23 24
‡
*
HSC Input
Counter Reset
npn (negative logic) inputs 40-47
+V
0V
1
2
3
4
5
6
7
8
9
10
15 16
17 18 19 20 21 22 23 24
‡
*
HSC Input
Counter Reset
Power Supply
9
10
11
12
13
14
26
27
28
RG
11
12
13
14
25 26 27 28
RG
11
12
13
14
25 26 27 28
3
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