Beckhoff TF6120, Manual

Page: 70 / 76

Appendix
TF6120 70 Version: 1.1
5.2.5 DCOM Permissions
5.2.5.1 Permissions
Within DCOM Security the launch permission is described as the right to start (launch) an application. As an
OPC Server will be started (launched) by the Client application (CreateInstance) the launch permission for
the OPC Server application must be granted for the
Security Context in which the OPC Client is running. The
Security Context of the Client may be different depending on the uuser actually logged in and double clicked
the Client.
The access permission is described as the right to access (communicate to) an application. As an OPC
Client will call functions on the OPC Server Object the
Security Context of the Client must be known by the
Server. When sending callbacks to the Client (asynchronous functions or DataChange) the Client must grant
access permission to the OPC Server.
• Access Permission [
}
70]
• Launch Permission [ } 71]
• Select Users [
}
72]
5.2.5.2 Access Permission
For granting access permission (accessing the application) to a certain user the Edit... button must be
clicked opening the following dialog.