558
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
polarity is reversed.
• Be sure to wire both terminals 3 and 4 (COM0 (+V)) of CN1.
• Be sure to wire both terminals 1 and 2 ((0 V)) of CN1.
• Be sure to wire both terminals 3 and 4 (COM1) of CN2, and set the same polarity for both pins.
0
2
4
6
8
10
12
14
16
18
0204060
(°C)
Number of Simultaneously ON Points vs.
Ambient Temperature Characteristic
Number of simultaneously ON points
16 points at 33°C 16 points at 45°C
Ambient Temperature
Input voltage: 24 V DC
Input voltage: 26.4 V DC
12 points at 55°C
9 points at 55°C
24 V
DC
24 V
DC
1
3
5
7
9
13
15
17
19
2
4
6
8
10
12
14
16
18
20
06
05
04
03
02
01
00
0715
14
13
12
11
10
09
08
COM1
NC
COM1
NC
11
1
3
5
7
9
13
15
17
19
2
4
6
8
10
12
14
16
18
20
11
06
05
04
03
02
01
00
07
COM0 (+V)
0 V
15
14
13
12
11
10
09
08
COM0 (+V)
0 V
L
L
L
L
L
L
L
L
L
L
L
L
L
L
LL
CN1 (Outputs)
I/O word "m"
CN2 (Inputs)
I/O word "m+1"