3. How to set the environments for connecting OPC
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On Windows Vista / Windows Server 2008
<1> Open “Control Panel” from start menu.
Select “Classic View” and open “Windows
Firewall”.
<2> “Windows Firewall” is turned on by default.
Click <Change settings>.
<3> “Windows Firewall Settings” window is
displayed
If “Off” is selected, select “On(recommended)”.