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MELSEC-Q
4 SETTING AND PROCEDURE BEFORE OPERATION
(2) Cable connection
(a) How to connect the cable
Note that there is no need to connect the cables in the order of station
numbers.
Set the station number of the remote master station to 0.
a - 1) QJ71LP21-25 - QJ72LP25-25, QJ71LP21G - QJ72LP25G
QJ72
LP25
Power supply
QCPU QJ71
LP21
Remote master station
IN OUT
Station
No. 0
Remote I/O station
IN OUT IN OUT
Station
No. 1
Station
No. n
Power supply
Power supply
n 64
Remote I/O station
QJ72
LP25
a - 2) QJ71LP21GE - QJ72LP25GE
QJ71LP21GE
IN
SD
RD
SD
RD
OUT
QJ72LP25GE
IN
SD
RD
SD
RD
OUT
QJ72LP25GE
IN
SD
RD
SD
RD
OUT
Optical module
Optical fiber cable
Remote master station Remote I/O station Remote I/O station
(b) Installing the optical fiber cable
The following are how to install the optical fiber cable:
Push the plug in until the plug fixing hole
catches the hook of the jack.
Pull the plug lightly in the direction of the
arrow to make sure that it is securely
connected.
Installation
Complete
Turn OFF the power.
Jack
Projection
Groove
Plug
Network module