Siemens SIMATIC NET Manual page 267

18.6.4 "Security" Tab
Introduction
You specify the access permissions for the OPC server in the "Security" tab.
For the three aspects relevant to COM objects, you can either use the default
permissions or user-defined permissions for the selected COM object.
Notice
If you select the default settings in the "Security" tab, you must make sure that the
necessary rights are available for the account entered in the "Identity" tab.
If you do not want a particular user to have all COM objects of the system
available, you must configure user-defined permissions. To operate the OPC
server, only the access permission and the launch permission need to be
configured.
Commissioning PC Stations - Manual and Quick Start
Release 5/2005
C79000-G8976-C156-07
18 DCOM Settings with the dcomcnfg System Program
267