3. External Connection
28
DIO-1616RL-PE, DIO-3232RL-PE
Connector Pin Assignment
Pin Assignments of Interface Connector (CN1) < DIO-1616RL-PE >
I-00 - I-17
16 input signal pins. Connect output signals from the external device to these pins.
O20 - O37
16 output signal pins. Connect these pins to the input signal pins of the external device.
IN 0/1
Connect the negative side of the external power supply. These pins are common to 16
input signal pins.
OP 2/3
Connect the positive side of the external power supply. These pins are common to 16
output signal pins.
N.C.
This pin is left unconnected.
Figure 3.3. Pin Assignments of Interface Connector (CN1) < DIO-1616RL-PE >
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
N.C.
OP 2/3
I-17
I-16
I-15
I-14
I-13
I-12
I-11
I-10
I-07
I-06
I-05
I-04
I-03
I-02
I-01
I-00
IN 0/1
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
OP 2/3
O-37
O-36
O-35
O-34
O-33
O-32
O-31
O-30
O-27
O-26
O-25
O-24
O-23
O-22
O-21
O-20
N.C.
+0 port
(input)
+1 port
(input)
+2 port
(output)
+3 port
(output)
Common minus pin for
+0/+1 input ports
Common plus pin for
+2/+3 output ports