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4 CPU Unit Initialization
CJ2 CPU Unit Software User’s Manual
4-4 Setting Routing Tables
4
4-4-1 Routing Tables
4-4 Setting Routing Tables
Settings for routing tables must be made with the CX-Integrator if more than one FINS Network Com-
munications Unit is mounted to the PLC and the following operations are to be performed.
• The network that is being accessed is switched from Support Software or an instruction in a ladder
program.
• Communications are performed across network layers.
A communications method called FINS is used between OMRON Network Communications Units
(CPU Bus Units). The transmission path, however, is not specified in the FINS protocol. Routing tables
define the network address settings and communications paths required when FINS network communi-
cations are performed.
Network addresses for the following Units are set in the routing tables.
• Network Communications Units for CPU Bus Units:
Controller Link Units, SYSMAC LINK Units, Ethernet Units, EtherNet/IP Units used for FINS network
communications, DeviceNet Units, and FL-net Units
• Built-in EtherNet/IP port on the CJ2H-CPU6@-EIP and CJ2M-CPU3@ when used for FINS network
communications
• Serial ports on Serial Communications Units when communications are performed across network
layers using serial gateway
Network Communications Units classified as Special I/O Units (e.g., CompoNet Master Units) do not
need to be set in the routing tables.
4-4-1 Routing Tables
Applicable Units
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