Omron CJ2 CPU UNIT SOFTWARE User Manual page 443

Precautions for Correct Use Precautions for Correct Use
Precautions before Using EtherNet/IP Connections
Better firewall security for Windows XP (SP2 or higher) and Windows Vista has increased the
restrictions for data communications on Ethernet ports. When using an EtherNet/IP connection
to one of the following PLCs from an EtherNet port on a computer, you must change the settings
of the Windows Firewall to enable using CX-Programmer communications.
*1: An EtherNet/IP connection includes the following cases:
• An online connection with the network type set to EtherNet/IP
• An automatic online connection to a PLCs on an EtherNet/IP network when Auto Online - Eth-
erNet/IP Node Online is selected from the PLC Menu.
Refer to A-6 EtherNet/IP Connections from Windows XP (SP2 or Higher), Windows Vista, or
Windows 7 for operating procedures.
Additional Information
Routing tables must be created and transferred in the following cases.
If one or more FINS Network Communications Units* are connected to a CJ2 CPU Unit, it is nec-
essary to create and transfer the local network table of the routing tables with the CX-Integrator
so that it is possible to access both the built-in EtherNet/IP network (on the CJ2H-CPU6@-EIP or
CJ2M-CPU3@) and the FINS network from the Support Software.
CJ2
*A "FINS Network Communications Unit" indicates a Controller Link Unit, SYSMAC LINK Unit,
Ethernet Unit, DeviceNet Unit, or FL-net Unit. CompoNet Units are not included. It also indi-
cates using the Serial Gateway for serial communications together with routing tables.
Additional Information
If one or more FINS Network Communications Units are connected to a CJ2H-CPU6@-EIP or
CJ2M-CPU3@, create and transfer the local network table. If you attempt access from the Sup-
port Software with the network address set to 0 (i.e., default) without creating and transferring
the local network table, you will access the node address of the built-in EtherNet/IP port in the
following cases.
If the unit number (default: 0) of the built-in EtherNet/IP port is lower than the unit number of the
FINS Communications Unit.
CJ2 CPU Unit Software User's Manual
FINS Network Communications Unit
FINS network
Local network table
11 Programming Devices and Communications
*1
11
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