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Routing Tables
Section 7-3
Creating Routing Tables
Routing tables consists of a local network table and a relay network table.
Local Network Table
A local network table provides unit numbers and network addresses corre-
sponding to the Units mounted to the PLC.
Note
1.
The unit number is set between 0 and 15 using the rotary switch on the
front panel of Controller Link Units for CS-series, CVM1, and CV-series
PLCs.
2.
The network address is the address of the network connected to the Unit
(between 1 and 127). The address is set when the local network table is
created.
Relay Network Table
A relay network table provides the node and network addresses correspond-
ing to the initial relay point (first point the data must go to) en route to a target
network (end network) not directly connected to the local PLC.
The table traces the route from the relay point to the end network.
The example below shows the routing tables for the route from local node
PLC1 (network address 1, node address 1) to PLC4 (network address 3, node
address 2).
Unit number 04
Unit number 05
Unit number 06
Network address 1
Network address 2
Network address 3
Network address 4
Example
Local network table
Local network
address
Unit number
2 05
3 06
4 07
1 04
Unit number 07
Local
network
address
Local node PLC1
Node
address
1
Relay node PLC2
Relay node
PLC3
Node address 2
Unit number 0
Node address 1
Unit number 1
Destination
Destination
node PLC4
End network
PLC1 relay network table
PLC2 relay network table
PLC3 local network table
End
network
Relay
network
Unit number
Data first goes to
node address 3 at
network address 1 to
reach network
address 3.
Data then goes to
node address 2 at
network address 2
to reach network
address 3.
We know from the
local network table
that the data goes
through local unit
number 1 to reach
network address 3.
Data goes to
node address 2
at network
address 3, i.e.,
the local
network.
Network address 1
Network
address 2
3
2
1
3
3
1
1
2
0
3
3
2
2
Node
address
2
Node
address
3
Node
address 1
Network
address 3
End
network
Relay
network
Relay
node
Relay
node
Node address 2
Summary of Contents for CS1W-CLK12-V1
Page 3: ...iv ...
Page 5: ...vi ...
Page 9: ...x TABLE OF CONTENTS ...
Page 11: ...xii ...
Page 59: ...42 Component Names and Functions Section 3 1 Dimensions Unit mm ...
Page 62: ...45 Component Names and Functions Section 3 1 Dimensions Unit mm ...
Page 91: ...74 CVM1 and CV series Optical Ring Controller Link Units Section 4 2 ...
Page 108: ...91 Setting Data Links Section 5 2 Device Information Setting Data Link Tables ...
Page 125: ...108 Checking Data Link Status Section 5 4 ...
Page 181: ...164 Setting Routing Tables Section 7 4 ...
Page 199: ...182 Memory Areas Related to Duplex Operation Section 8 6 ...
Page 275: ...258 Handling Precautions Section 10 7 ...
Page 298: ...281 CS series Optical Bus Controller Link Units Appendix C Dimensions Unit mm 101 35 130 ...
Page 299: ...282 CS series Optical Bus Controller Link Units Appendix C ...