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Creating Routing Tables
6-4-3
Routing Table Setting Examples
126
■
Example 1: Local Network Table for a PLC With Multiple Units Mounted
This example shows the local network table settings for a PLC to which multi-
ple CPU Bus Units are mounted.
Ethernet network
(Network #A)
■
Example 2: Three Interconnected Networks
This example shows the relay network table settings for three different inter-
connected networks.
Network #A
Network #B
Network #C
In the table for PLC #3, for example, if network #A is taken as the end net-
work, then network #B becomes the relay network and node #c becomes the
relay node. If network #C is taken as the end network, then network #B still
becomes the relay network and node #e becomes the relay node.
Controller Link network
(Network #B)
E
C
C
P
T
L
P
S
N
K
U
Unit #a Unit #b
Local Network Table
Local
CPU Bus
No.
network
Unit
1
A
a
2
B
b
Relay Network Table
End
No.
network
PLC #1
1
B
2
C
Node #a
PLC #2
1
C
Node #b
Node #c
PLC #3
1
A
2
C
Node #d
PLC #4
Node #e
1
A
Node #f
PLC #5
1
A
2
B
Node #g
Section 6-4
PS:
Power Supply Unit
CPU: CPU Unit
ETN: Ethernet Unit
CLK: Controller Link Unit
Relay
Node
network
A
b
A
b
B
e
B
c
B
e
B
c
C
f
C
f
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