5
External Connection Diagram (1) (8-point inputs, 16-point outputs)
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
{
|
17A,17B,18A
Pin number
Fuse-blown
detector
circuit
Internal
control
circuit
Internal
scan is
made at
1/8 duty.
Internal
control
circuit
Internal
control
circuit
*
1: A fuse-blown error will also be displayed when the external supply power
switches off.
*
2: 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.
