552
Specifications of Basic I/O Units Appendix A
Circuit Configuration
Terminal Connections
• The input power supply polarity can be connected in either direction.
• With quick-response inputs, pulse inputs shorter than the CPU Unit’s cycle time can be read by the CPU
Unit.
• The pulse width (ON time) that can be read by the Quick-response Input Unit is 0.05 ms.
• Inputs read by the internal circuits are cleared when inputs are refreshed.
Note Terminal numbers A0 to A9 and B0 to B9 are used in this manual, but they are not printed on the Unit.
18
16
14
12
10
8
6
4
2
0
010 20 30 40 50 60
Number of
simultaneously ON points
Input voltage:
26.4 V DC
Ambient temperature
16 pt s.,
45 ˚C
12 pt s.,
55 ˚C
3.3 kΩ
470 Ω
1000 pF
IN 00
to
IN 15
COM
COM
Input indicator
Internal circuits
Number of simultaneously
ON points -- Ambient
temperature characteristics
A8
0
2
4
6
10
12
14
8
1
3
5
7
COM
11
13
15
9
COM
24 V DC
A7
A6
A5
A4
A3
A2
A1
A0
B0
B1
B2
B3
B4
B5
B6
B7
B8
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