Mitsubishi Electric Melsec A Series - Page 35

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INTRODUCTION
1
(a) Optical loop system
• When the master station is replaced
• When the module is replaced gradually
MELSECNET/10 MELSECNET/H System configuration precautions
Optical loop Optical loop
The module configuration example when
the master station is replaced
1M
R
: QCPU + QJ71LP21-25
1R1 to 1R3:
QJ72LP25-25 (MELSECNET/H mode)
MELSECNET/10 MELSECNET/10 System configuration precautions
Optical loop Optical loop
The example when the module is replaced
gradually
(1R3 is replaced with the Q series module)
1R3: A(1S)J72(Q)LP25 QJ72LP25-25
(MELSECNET/10 mode)
Network 1 1R31R1
1M
R
1R2
Network 1 1R31R1
1M
R
1R2
Network 1
1R3
(An)
1R1
(An)
1M
R
(An)
1R2
(An)
Network 1
1R3
(Qn)
1R1
(An)
1M
R
(An)
1R2
(An)