Omron SYSMAC CJ1W-EIP21, Operation Manuals

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A-7
Appendices
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
A-3 Precaution
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A-3-1 Chan
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A-3 Precautions for Using the Network
Configurator on Windows XP,
Windows Vista, or Windows 7
Better firewall security for Windows XP (SP2 or higher), Windows Vista, and Windows 7 has
increased the restrictions for data communications. Therefore, you must perform the corresponding
procedure given below to change the settings of the Windows firewall before you use the following
operations to perform communications with the Network Configurator connected to an NJ-series
CPU Unit.
• If you select Option
−
Select Interface
−
Ethernet I/F
• If you select Option
−
Select Interface
−
NJ Series Ethernet Direct I/F
• If you select Option
−
Select Interface
−
NJ Series USB Port
Precautions for Correct Use Precautions for Correct Use
The main function of the firewall is to prevent unwanted access from external sources (e.g., the
Internet). The changes that are made with the following procedures are to allow the Network
Configurator and the NJ-series CPU Unit to connect. If your computer is on an inhouse network,
make sure that security will not be jeopardized before you change the settings.
1
When you attempt to connect to the NJ-series CPU Unit from the Network Configurator, the
Windows Security Warning Dialog Box is displayed.
2
Click the Unblock Button.
A USB or EtherNet/IP connection will be approved for the Network Configurator, and you will be
able to connect the Network Configurator in the future.
A-3-1 Changing Windows Firewall Settings
Windows XP