Mitsubishi Electric MELSEC-A Series Manual page 35

1
INTRODUCTION
(a) Optical loop system
• When the master station is replaced
MELSECNET/10
Optical loop
1M
1R1 Network 1 1R3
1R2
• When the module is replaced gradually
MELSECNET/10
Optical loop
1M
R
(An)
1R1 Network 1 1R3
(An)
1R2
(An)
MELSECNET/H
Optical loop
R
1R1
MELSECNET/10
Optical loop
1R1
(An)
(An)
System configuration precautions
The module configuration example when
1M
R
the master station is replaced
1M
R
Network 1 1R3
1R1 to 1R3:
QJ72LP25-25 (MELSECNET/H mode)
1R2
System configuration precautions
1M
The example when the module is replaced
R
(An)
gradually
(1R3 is replaced with the Q series module)
Network 1 1R3
(Qn)
1R3: A(1S)J72(Q)LP25 QJ72LP25-25
(MELSECNET/10 mode)
1R2
(An)
: QCPU + QJ71LP21-25
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