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External Connection Diagram (2) (64-point inputs, 16-point outputs)
Pin number
Input terminals
38
30
28
20
18
10
08
39
31
29
21
19
11
09
3A
32
2A
22
1A
12
0A
3B
33
2B
23
1B
13
0B
3C
34
2C
24
1C
14
0C
3D
35
2D
25
1D
15
0D
3E
36
2E
26
1E
16
0E
3F
37
2F
27
1F
17
0F
L
L
A17,B17,A18
-
+
B18,A19
DC12/24V
(12/24VDC)
*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.
00
B4
XD0
01
A4
XD1
02
B3
XD2
03
A3
XD3
04
B2
XD4
05
XD5
A2
06
B1
XD6
07
A1
XD7
B8
XSCN0
A8
XSCN1
B7
XSCN2
A7
XSCN3
B6
XSCN4
A6
XSCN5
B5
XSCN6
A5
XSCN7
B16
YD0
A16
YD1
B15
YD2
A15
YD3
B14
YD4
A14
YD5
B13
YD6
A13
YD7
B12
YD8
A12
YD9
B11
YD10
A11
YD11
B10
YD12
A10
YD13
B9
YD14
A9
YD15
R R
R
R
6
Internal
control
circuit
Internal
control
Internal
circuit
scan is
made at
1/8 duty.
Internal
control
circuit
Fuse-blown
detector
circuit
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