Connecting And Using A Peripheral Device For The Plc - Omron CJ1W-ETN21 - 04-2009 Operation Manual

Creating Routing Tables
PLC #1 (local node)
Node #1
PLC #1
relay network table
End Relay
network network
2 1
3 1
To go to network #3,
first go to node #3 at
network #1.
Note
6-4-2

Connecting and Using a Peripheral Device for the PLC

Note
The following example shows routing tables for sending data from PLC #1 (the
local node: network address 1, node address 1) to PLC #4 (the destination
node: network address 3, node address 2).
PLC #2 (relay node)
Node #2
Node #1
Network #2
Network #1
PLC #2
relay network table
End Relay Relay
Relay
network network node
node
3 3 2 2
To go to network #3,
3
first go to node #2 at
network #2.
In the above example, the routing tables required for a message to reach PLC
#4 from PLC #1 are shown. Additional settings would be required in the rout-
ing tables for a message to reach PLC #1 from PLC #4. Refer to 6-4-3 Rout-
ing Table Setting Examples for routing table setting examples.
Routing tables must be created by a CX-Integrator connected to the PLC.
(They cannot be created using a Programming Console.) For details on how
to connect and use the CX-Integrator, refer to the CX-Integrator Operation
Manual (W445). (CX-Integrator is automatically installed when CX-One is
installed.)
1. When routing tables are transferred from the CX-Integrator to the PLC, the
CPU Bus Unit is reset so that the routing tables that have been created can
be read and enabled. Before transferring the routing tables, make sure that
the devices in the system will not be adversely affected by resetting the
CPU Bus Unit.
2. To transfer routing tables for multiple nodes to a PLC in one batch, connect
the CX-Integrator to a PLC with only one Communications Unit mounted.
Routing tables cannot be transferred to other nodes from a PLC with mul-
tiple Communications Units mounted.
3. Routing tables can only be transferred as a batch to multiple nodes within
the same network as the PLC to which the CX-Integrator is connected.
Node #2
PLC #3
Unit #0
(relay node)
Node #1
Node #3
Unit #1
Network #3
End network
PLC #3
local network table
Local
Unit
network
number
address
2 0
3 1
(The network is the same,
(To go to network #3
so go to node #2 at network #3.)
according to the local
network table, go
through unit
number 1 of the local
CPU Rack.)
Section 6-4
PLC #4 (destination node)
Node #2
125