CJ2 CPU Unit Software User's Manual - CIP ETI

AppendicesA-6 EtherNet/IP Connections fromWindows XP (SP2 or Higher) orWindows VistaA-6-1Better firewall security for Windows XP (SP2 or higher) and Windows Vista has increased the restrictionsfor data communications on Ethernet ports. When using an EtherNet/IP connection to a CPU Unitfrom an Ethernet port on a computer, you must change the settings of the Windows Firewall to enableusing CX-Programmer communications.Precautions for Correct UseWindows Firewall is mainly designed to prevent inappropriate access from external devices (e.g.,via the Internet). The changes to the Windows Firewall settings described in this documentenable EtherNet/IP connections to be used by the CX-Programmer. If the same computer isbeing used on a company network or other network, confirm that the changes will not createsecurity problems before proceeding with the changes. The changes described in this documentare required only when you connect using EtherNet/IP through an Ethernet port. No changes arenecessary if you are connecting through any other port, such as a USB port.Changing Windows Firewall SettingsWindows XP1 When you attempt to connect the CX-Programmer to a PLC on an EtherNet/IP network throughan Ethernet port, the Windows Security Alert Dialog Box will be displayed.2 Click the Unblock Button.A-6 EtherNet/IP Connections from Windows XP (SP2 or Higher) orWindows VistaAppA-6-1 Changing Windows Firewall SettingsAn EtherNet/IP connection will be accepted from CX-Programmer and EtherNet/IP connectionswill be enabled in the future as well.Windows VistaUse the following procedure to change the settings before attempting to connect from the CX-Programmer.The User Account Control Dialog Box may be displayed during this procedure. If it appears, click theContinue Button and continue with the procedure.1 Select Control Panel from the Windows Start Menu and change the display to Classic View.CJ2 CPU Unit Software User’s ManualA-147