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MELSEC
2 SYSTEM CONFIGURATION
2.2 Single Network System
A single network system is one system that connects the control station and the normal
stations with an optical fiber cable or a coaxial cable.
2.2.1 Optical loop system
In the optical loop system, 1 control station and 63 normal stations (a total of 64
stations) can be connected. Any station number can be assigned as the control station.
However, only one station can be set as the control station per system.
In the following sample system, station number 1 has been assigned as the control
station.
Optical fiber cable
Q80BD-
J71LP21-25
Station No. 1
(control station)
QCPU
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QJ71
LP21-25
QCPU QJ71
LP21
Personal
computer
Station No. 2
(normal station)
Station No. 64
(normal station)
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2.2.2 Coaxial bus system
In the coaxial bus system, 1 control station and 31 normal stations (a total of 32
stations) can be connected. As in the optical loop system, any station number can be
assigned as the control station. However, only 1 station can be assigned as the control
station per system.
QCPU
QCPU
Terminal resistor
A6RCON-R75
Coaxial cable
Terminal resister
A6RCON-R75
QJ71
BR11
QJ71
BR11
Q80BD-
J71BR11
Station No. 1
(control station)
Personal
computer
Station No. 2
(normal station)
Station No. 32
(normal station)
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Summary of Contents for Q80BD-J71BR11
Page 2: ......
Page 24: ...A 22 A 22 MEMO ...
Page 50: ...4 6 4 6 MELSEC 4 FUNCTION MEMO ...
Page 92: ...6 36 6 36 MELSEC 6 PROCEDURE AND SETTINGS UP TO THE POINT OF OPERATION MEMO ...
Page 132: ...10 2 10 2 MELSEC 10 MELSEC DATA LINK LIBRARY MEMO 10 ...
Page 138: ...11 6 11 6 MELSEC 11 PROGRAMMING MEMO ...
Page 164: ...12 26 12 26 MELSEC 12 APPLICATION FUNCTIONS MEMO ...
Page 166: ...13 2 13 2 MELSEC 13 ERROR CODE MEMO 13 ...
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