Siemens Commissioning PC Stations C79000-G8976-C156-07 - Manual (Page 221)

16 Configuration Console Tool
221
Commissioning PC Stations - Manual and Quick Start
Release 5/2005
C79000-G8976-C156-07
16.2.8 Security Setting (Windows XP + SP2 only)
With Service Pack 2 for Windows XP, Microsoft has improved operating system
security. The default settings of the operating system do not allow any
communication from applications over the network.
Although installing the SIMATIC NET CD enters the OPC servers in the exceptions
list of the Windows Firewall, this is not enough to allow operation with OPC again.
General applications and ports as well as new DCOM settings are still missing in
the firewall.
Follow the steps below to enter the missing applications and ports in the
firewall and to make the new DCOM settings...
Step Activity
1. Open the “Applications / OPC settings / Security” folder in the navigation area.
2. Click the “Enable” button.
Remember that this enable also affects other applications that use this access method.