Replacement Of Melsecnet Network System; Replace Melsecnet(Ii) With Melsecnet/10; Replace Melsecnet(Ii) Coaxial Loop With Melsecnet/10 Coaxial Bus System; While Retaining Existing A Series Cpus - Mitsubishi Electric Artisan MELSEC-Q Series Manual

General-purpose programmable controllers, large/small
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4.1 Replace MELSECNET(ΙΙ) with MELSECNET/10
4.

Replacement of MELSECNET Network System

4.1 Replace MELSECNET(ΙΙ) with MELSECNET/10
4.1.1 Replace MELSECNET(ΙΙ) coaxial loop with MELSECNET/10 coaxial bus system

while retaining existing A Series CPUs

Solution and Benefit
• When an existing MELSECNET(ΙΙ) system consists of many stations, the complete network
system can be upgraded to MELSECNET/10 while reusing existing cable installations.
• By upgrading the entire network at once, the current network parameter settings can be used.
• Once the network is updated, A Series stations can be replaced with the Q Series in any order
until all the stations are upgraded to the Q Series.
The following is an example of replacing a MELSECNET(ΙΙ) coaxial loop system's master station with a Q Series
system and upgrading the network to a MELSECNET/10 coaxial bus system.
● Instructions
(1) Replace one of the MELSECNET(ΙΙ) stations with the Q Series.
(2) Replace the complete MELSECNET(ΙΙ) system with MELSECNET/10 coaxial bus system.
(3) Replace the CPU of each station with Q Series CPU sequentially, and eventually replace all CPUs with Q
Series CPUs.
(4) Use the existing settings for the network parameters.
(1) System configuration example
Current configuration
Master station
NET/ΙΙ (Coaxial loop)
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Transitional step 1
Control station
NET/10 (Coaxial bus)
Initial
replacement
82
R
Second
replacement
R

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