Mitsubishi Electric MELSEC-A Series Manual page 59

2
REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK)
(3) MELSECNET II composite mode
The following shows the procedures for changing the parameters in the case of a MELSECNET II
composite mode 2-tier system configuration on an A3ACPU.
Optical loop
A3ACPU
M
L1
L2
A2ACPU
B/W 0 100 200 300
M L1 L2
Setting range of
first half of link
parameters
A MELSECNET/H module set as normal station requires network parameter setting. For replacement of
MELSECNET (II) module mounted on the CPU module of the AnN/AnA/AnSCPU (excluding
AnUS(H)CPU), newly set network parameters.
The following shows parameters required on each station of MELSECNET/H.
(Network range assignment)
1Mp1
1Ns2
1Ns3
MELSECNET ( II )
MELSECNET II mode compatible
link modules are used for the M
and L2 stations, and a
MELSECNET mode compatible
link module is used for the L1
station.
400 500
M L2
Setting range
of second half of
link parameters
Common parameter
(Refer to example in (b) 2))
MELSECNET/H
Optical loop
1M
Network
1N 2
S
FFF
Station inherent parameter
(Refer to example in (b) 3))
(Refer to example in (c) 2))
(Refer to example in (c) 2))
: Setting required/ : Setting required (Default setting is also acceptable)
Q06UDVCPU
1
P
1
1N 3
S
Q02UCPU
Refresh parameter
(Refer to example in (b) 4))
(Refer to example in (c) 3))
(Refer to example in (c) 3))
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