585
Specifications of Basic I/O Units Appendix A
Terminal Connections
• When wiring, pay careful attention to the polarity of the external power supply. The load may operate if the
polarity is reversed.
• Be sure to wire both terminals 21 and 22 (COM0 (+V)) of CN1.
• Be sure to wire both terminals 1 and 2 (COM1 (+V)) of CN1.
• Be sure to wire both terminals 23 and 24 (0 V) of CN1.
• Be sure to wire both terminals 3 and 4 (0 V) of CN1.
• Be sure to wire both terminals 21 and 22 (COM2 (+V)) of CN2.
• Be sure to wire both terminals 1 and 2 (COM3 (+V)) of CN2.
• Be sure to wire both terminals 23 and 24 (0 V) of CN2.
• Be sure to wire both terminals 3 and 4 (0 V) of CN2.
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
15
14
13
12
11
102
15
14
13
12
11
0 V
0 V
7
6
5
4
3
COM1(+V)
10
0 V
0
7
6
5
4
3
2
1
COM0(+V)
8
9
COM0(+V)
8
9
0
1
CN1 (OUT)
0 V
COM1(+V)
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
L L
CN2 (OUT)
40
0
38
1
36
2
34
3
32
4
30
5
28
6
26
7
24
22
15
20
18
0
16
1
14
2
12
3
10
4
8
5
6
6
4
2
39
37
8
35
9
33
10
31
11
29
12
27
13
25
14
23
21
8
19
9
17
10
15
11
13
12
10
7
9
13
7
14
5
15
3
0 V
1
COM3(+V)
0 V
COM2(+V)
0 V
COM3(+V)
LL
0 V
COM2(+V)
L L
L
L L
L
12
to
24 V DC
I/O word m
12
to
24 V DC
I/O word m+1
I/O word m+3
I/O word m+2
12
to
24 V DC
12
to
24 V DC