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<Reference> The example of connection with our PLC
<Sink>
Parallel I/O interface
（Output）
Fig.3-18: Connection with a Mitsubishi PLC (Example of sink type)
<Source>
Parallel I/O interface
Fig.3-19: Connection with a Mitsubishi PLC (Example of source type)
60mA
(+24/+12V)
Output
Output
24V
Fuse (24G/12G)
External
power supply
(Input)
(COM)
Input
3.3K
Input
External
power supply
(Output)
(Output)
60mA
Fuse
(+24/+12V)
Output
Output
(24G/12G)
(Input)
3.3K
Input
Input
(COM)
External
power supply
QX41
(Mitsubishi programmable
controller)
COM
X
QY41P
(Mitsubishi programmable
controller)
+24V
Y
24V
COM
24G
QX81
QX41
(Mitsubishi programmable
controller)
X
24V
COM
External
(Mitsubishi
power supply
QY81P
programmable
+24V
controller)
Y
24G
24V
*The input/output circuit external
power supply (24 VDC) must be
prepared by the customer.
Note) In the customer's system, do
not ground the + side of 24V
power supply prepared by
customer for connect to the
controller. (related with
emergency stop and parallel
input/output) If it connects with
the controller under the
condition that the + side is
grounded, it will lead to failure
of controller.
*The input/output circuit external
power supply (24 VDC) must be
prepared by the customer.
Note) In the customer's system,
do not ground the + side of
24V power supply prepared
by customer for connect to
the controller. (related with
emergency stop and
parallel input/output) If it
connects with the controller
under the condition that the
+ side is grounded, it will
lead to failure of controller.
Parallel I/O interface 3-81
3 Controller
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