Example Of Changing Parameters On 2-Tier System - Mitsubishi Electric MELSEC-A Series Manual

2
REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK)

2.5.2 Example of changing parameters on 2-tier system

The following shows examples of how to change the LB/LW network parameters when replacing the
MELSECNET (II) with MELSECNET/H.
As MELSECNET (II) has three operation modes, the examples are shown for each operation mode.
• MELSECNET mode
• MELSECNET II 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.
The MELSECNET master station is replaced with the MELSECNET/H control station, and MELSECNET
local stations are replaced with MELSECNET/H normal stations.
Optical loop
L1
(Link parameter setting range)
B/W 0
M
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.
1Mp1
1Ns2
1Ns3
1Ns4
2
- 13
MELSECNET
M
A3ACPU
L3
A2ACPU
L2
100 200 300 380
L1 L2 L3 Empty
Common parameter
(Network range assignment)
(Refer to example in (c) 2))
Optical loop
1N 2
S
3FF
: Setting required/ : Setting required (Default setting is also acceptable)
MELSECNET/H
1M 1
P
Q06UDVCPU
Network
1N 4
S
1
Q02UCPU
1N 3
S
Refresh parameter
(Refer to example in (c) 3))
(Refer to example in (d) 2))
(Refer to example in (d) 2))
(Refer to example in (d) 2))