Mitsubishi Electric Melsec A Series - Example of Changing Parameters on 3-Tier System (When the First Half;Second Half of Link Parameter Is Set)

REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK)
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2.5.4 Example of changing parameters on 3-tier system (When the first half/second
half of link parameter is set)
The following shows how to change network parameter on LB/LW, when replacing the MELSECNET II
3-tier system with MELSECNET/H. Network range assignment of the present MELSECNET II 3-tier
system is used as it is for replacement with MELSECNET/H.
MELSECNET II 2-tier is replaced with the network 1 of MELSECNET/H, and 3-tier is replaced with the
network 2. The MELSECNET II master station is replaced with the MELSECNET/H control station, and
MELSECNET II local stations are replaced with MELSECNET/H normal stations.
MELSECNET II MELSECNET/H
Optical loop Optical loop
M L1/m L2
Empty
M L1/m L2 Empty
B/W 0 100 280 380 400 500 680 780 FFF
m l1 l2
100 280180 200
m l1 l2
680580 600500
3-tier
MELSECNET II
MELSECNET II
2-tier
M
L2
l1 l2
L1/m
A2UCPU
A2UCPU
A3UCPU
A3UCPU
A2UCPU
Link parameter of 2-tier
Link parameter of 3-tier
master station (L1/m)
MELSECNET/H
Network 2
MELSECNET/H
Network 1
Q06UDVCPU Q02UCPU
Q06UDVCPU
Q02UCPU Q02UCPU
1Ns1/2Mp3
1Mp3 1Ns2
2Ns1 2Ns2
Gateway
station