6
External Connection Diagram (2) (64-point inputs, 16-point outputs)
17A,17B,18A
01
09
11
19
21
29
31
39
02
0A
12
1A
22
2A
32
3A
03
0B
13
1B
23
2B
33
3B
04
0C
14
1C
24
2C
34
3C
05
0D
15
1D
25
2D
35
3D
08
0E
16
1E
28
2E
38
3E
07
0F
17
1F
27
2F
37
3F
XD1
XD2
XD3
XD4
XD5
XD6
XD7
8A
7B
7A
6B
6A
5B
5A
XSCN0
XSCN1
XSCN2
XSCN3
XSCN4
XSCN5
XSCN6
XSCN7
16A
YD1
15B
YD2
15A
YD3
14B
YD4
14A
YD5
13B
YD6
13A
YD7
12B
YD8
12A
YD9
11B
YDA
11A
YDB
10B
YDC
10A
YDD
9B
YDE
9A
YDF
R R
4B
4A
3B
3A
2B
2A
1B
1A
XD0
8B
R
16B
R
YD0
L
L
18B,19A
DC12/24V
{
|
00
08
10
18
20
28
30
38
Fuse-blown
detector
circuit
Input terminals
Pin number
Internal
scan is
made at
1/8 duty.
Internal
control
circuit
Internal
control
circuit
Internal
control
circuit
*
1: When there is a probability that two or more switches are pressed
simultaneously, each switch must be provided with a diode.
(Refer to the right figure.)
*
2: A fuse-blown error will also be displayed when the external
supply power switches off.
*
3: The fuse in the output unit is provided to prevent the external wiring from
burning out if the outputs of the unit are shorted.
Therefore, it may not protect the output elements.
The fuse may not be blown if the output elements are damaged in the fault
mode other than a short circuit.
