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Gradual Replacement Of Melsecnet/10 Remote I/o Net - Mitsubishi Electric Artisan MELSEC-Q Series Manual

General-purpose programmable controllers, large/small.
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4.4 Gradual replacement of MELSECNET/10 Remote I/O Net

(Utilize QJ72LP25-25(G), QJ72BR15 (MELSECNET/10 mode))
Solution and Benefit
Replace the remote I/O station only in a station unit to the Q Series remote I/O station while utilizing
the current AnU(S)CPU/QnA(S)CPU master station. This allows gradual replacement of the network
to the Q Series.
List of MELSECNET/H (MELSECNET/10 mode) remote I/O network modules
MELSECNET/10 remote
(current system)
Master station
CPU module
Remote master
station module
Remote I/O
A(1S)J72(Q)LP25
station
A(1S)J72(Q)LP25G
network
A(1S)J72(Q)BR15
module
Tip
• Replace the MELSECNET/10 mode master station CPU
The Q Series master station cannot be connected to the A/AnS remote I/O station. When replacing the
current master station with the Q Series in the final stage, all remote I/O stations must be Q Series stations.
• Replace the A Series special module with the Q Series intelligent function module
The Q Series intelligent function module's buffer memory can be read/written using the current A/QnA Series
dedicated instructions.
The sequence program must be revised as the number of occupied points, I/O signals and buffer memory
address may change.
• Replace master station CPU to Q Series in final step
(a) Using only I/O module
The network can be shifted to the MELSECNET/H remote I/O network by changing the mode switch
setting from 8 to 0. There is no need to change the program.
(b) Using the intelligent function module
• The network can be shifted to the MELSECNET/H remote I/O network by changing the mode switch
setting from 8 to 0.
• The Q Series intelligent function module's buffer memory read/write instructions must be changed to Q
Series link dedicated instructions. Refer to the "Q Series Compatible MELSECNET/H Remote I/O
module reference Manual (MELSECNET/10 Mode Section)" for details on the dedicated instructions.
Note:
This replacement is intended for an existing MELSECNET/10 remote I/O network system.
Replacement from the MELSECNET (II, II mixed) or MELSECNET/B data link system is not supported.
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4.4 Gradual replacement of MELSECNET/10 Remote I/O Net
MELSECNET/H (MELSECNET/10 mode)
(gradual replacement)
AnU(S)CPU/QnA(S)CPU
A(1S)J71(Q)LP21
A(1S)(Q)BR11
QJ72LP25-25
A(1S)J72(Q)LP25
QJ72BR15
A(1S)J72(Q)LP25G
QJ72LP25G
A(1S)J72(Q)BR15
* Set mode switch to 8
Mixing possible
97
MELSECNET/H remote
(final replacement configuration)
QCPU
QJ72LP21
QJ72BR11
QJ72LP25-25
QJ72BR15
QJ72LP25G
* Set mode switch to 0

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