5-1 Connecting to Host Via Ethernet
5-8
tions Unit mounted at a node. If there is more than one Communications Unit at a node, each
Unit will contain a local network table.
Remote Network Table
The remote network table provides the node and network address corresponding to the initial
relay point (first point the data must pass) en route to a target network (end network) not di-
rectly connected to the local PLC. The table specifies the route from the relay point to the end
network.
Routing tables are created using the CX-Programmer and then transferred to the host. Refer
to the CX-Programmer User Manual for actual procedures.
The methods for setting each Unit are described next.
· CS-series PLCs
Note
· Always turn OFF the power to the PLC before setting the rotary switches.
· Create I/O tables for the CPU Unit when setting the unit number for the first time or chang-
ing settings.
CS1G/CS1H and CS1G/CS1H-H Ethernet Units:
CS1W-ETN01
CS1W-ETN11
Setting the Front Panel Switches
Setting Unit Numbers
Always set the unit numbers so that the unit numbers of other CPU Bus Units mounted to the
Unit number 04
Unit number 02
Network 2
Network 3
Local network table
Local network
address
Unit number
PT at local
node
Node 1 Node 2 Node 3
Relay PLC
(a)
Node 2
Relay PLC
(b)
Node 2
Desti-
nation
Node 2
Network 1 Network 2 Network 3
Remote Network Table for Local PT
Meaning: To go to network 3,
first go to node 3 of network 1.
Destination
network
address
Relay
network
addreww
Gateway
node
address
Meaning: To go to network 3,
first go to node 2 of network 2.
Local Network Table for PLC (b)
Local
network
address
Unit
number
Relay
network
addreww
Destination
network
address
Gateway
node
address
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