Omron CS1W-ETN21 operation manual Connecting and Using a Peripheral Device for the PLC

Creating Routing Tables Section 6-4

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 #3		Node #2
							Unit #0
					(relay node)
PLC #1 (local node)		PLC #2 (relay node)					Node #1
					Node #3		Unit #1
	Node #1		Node #2
					Node #1
	Network #1			Network #2		Network #3

PLC #4 (destination node)

Node #2

PLC #1		PLC #2		PLC #3	End network
relay network table		relay network table		local network table
End Relay	Relay	End Relay	Relay	Local	Unit
				network
network network	node	network network	node	address	number

2 1 3

3 1 3

To go to network #3, first go to node #3 at network #1.

3 2 2

To go to network #3, first go to node #2 at network #2.

2 0

3 1

(To go to network #3 according to the local network table, go through unit number 1 of the local CPU Rack.)

(The network is the same,

so go to node #2 at network #3.)

Note 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.

6-4-2 Connecting and Using a Peripheral Device for the PLC

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.)

Note 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.

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