Mitsubishi Electronics QJ72LP25-25 ユーザーズマニュアル
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MELSEC-Q
2 SYSTEM CONFIGURATION
2 SYSTEM CONFIGURATION
This introduces a system comprised of remote I/O networks.
POINT
(1) Remote I/O networks and PLC to PLC networks cannot be mixed on the same
MELSECNET/H network. Always build separate networks.
(2) Only MELSECNET/H network modules can be connected to a MELSECNET/H
remote I/O network. They cannot be mixed with MELSECNET/10 network
modules (AJ72LP25, A1SJ72QLP25, etc.).
modules (AJ72LP25, A1SJ72QLP25, etc.).
2.1 Single Remote I/O Networks
2.1.1 Configuration
(1) Optical loop system
Up to 64 remote I/O modules can be connected to a remote master station.
Always set the station number of the remote master station to 0.
Always set the station number of the remote master station to 0.
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QCPU QJ71
LP21
Station number 0
(remote master station)
Station number 1
(remote I/O station)
I/O
QJ72
LP25
LP25
I/O
Station number 2
(remote I/O station)
I/O
QJ72
LP25
LP25
I/O
Optical fiber cable
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I/O
QJ72
LP25
LP25
I/O
I/O
QJ72
LP25
LP25
I/O
Po
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Po
w
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I/O
QJ72
LP25
LP25
I/O
Po
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Station number 4
(remote I/O station)
Station number 3
(remote I/O station)
Station number 64
(remote I/O station)
(2) Coaxial cable bus system
Up to 32 remote I/O stations can be connected to a remote master station.
Always set the station number of the remote master station to 0.
Always set the station number of the remote master station to 0.
QCPU QJ71
BR11
Terminating resistor
(Sold separately)
Terminating resistor
(Sold separately)
Coaxial cable
Station number 1
(remote I/O station)
I/O
QJ72
BR15
BR15
I/O
Station number 32
(remote I/O station)
I/O
QJ72
BR15
BR15
I/O
P
ower supply
P
ower supply
P
ower supply
Station number 0
(remote master station)
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