Beckhoff TF6120, Manual

Page: 65 / 76

Appendix
TF6120 65 Version: 1.1
5.2.4 Server
5.2.4.1 Server Machine
This section describes the required settings on the server's side. The server is the computer on which the
TwinCAT OPC-Server application is running. Usually the OPC-Client is also located on this computer.
However, in some environments it may be necessary that OPC-Client and OPC-Server need to be installed
on different computers. Both, the OPC-Server's and OPC-Client's DCOM settings need to be configured, so
that a remote communication between client and server is possible.
Please note: The following settings have been tested on Windows 2000, Windows XP and Windows 7
computers.
Step 1: General network configuration
Depending on the server's operating system, some additional network settings need to be taken. Basically,
the same settings must be performed. However, some "operating system specific" settings must be done to
get the DCOM security running.
Please refer to our Article about Operating Systems [
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56] for more information.
Step 2: DCOM configuration
To configure DCOM for a remote OPC communication, please perform the following steps on the computer
running TwinCAT OPC-Server.
Please note: Only local administrators are allowed to open and change the DCOM security.
• Open Start --> Run --> dcomcnfg.exe to start the DCOM configuration dialog.