Mitsubishi Electric Melsec A Series - Parameter Change Example

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REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK)
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3.5.2 Parameter change example
The following shows an example of how to change the LB/LW, LX/LY network parameters when
replacing the MELSECNET remote system with MELSECNET/H.
The MELSECNET remote system can be used in the following operation modes.
• MELSECNET mode
• MELSECNET II composite mode
(1) MELSECNET mode
The following shows the procedure for changing the parameters in the case of a MELSECNET mode 2-
tier system configuration.
A MELSECNET composite system comprising local stations and remote I/O stations is divided into a
PLC to PLC network and a remote I/O network in the MELSECNET/H.
MELSECNET mode 2-tier system configuration example
MELSECNET MELSECNET/H
Optical loop
Optical loop
R4R1
L3L2
M
A3ACPU
Network
1
1N
S2
1N
S3
Network
2
2R1
1M P 1/2M R
2R2
Q06UDVCPU
No.1
Remote I/O station
No.4
Remote I/O station
No.2
Local station
No.3
Local station
Input module Input module
Input module Input module Input module Input module
Input module Input module
Input module Input module
Input module
Input module Input module Input module Input module Input module Input module Input module
Special module
Output module Output module Output module Output module Output module Output module Output module Output module Output module Output module
Output module Output module Output module
Output module Output module
Output module Output module
Output module Output module Output module Output module Output module Output module Output module Output module Output module Output module Output module
Output module
Output module
Output module Output module Output module Output module Output module
Output module Output module
Special module Special module
Master station