3. How to set the environments for connecting OPC
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<5> On “Windows Firewall” window, confirm
whether programs you selected are checked.
And if there isn’t “Microsoft Management
Console” in the list, add “
Program” (mmc.exe) under
“\Windows\System32” folder. (Refer to <3>-<4
After adding needful programs, click <Add
Port…>.
<6> On “Add a Port” window, Set the following port
and click <OK>.
Name : DCOM
Port No: 135
Check “TCP”
And add following port likewise.
Name : ToolIf
Port No: 20000
Check “TCP”
Windows Firewall setting is completed.
Figure 3.12 Windows Firewall Setting (Windows XP/Windows Server 2003)