posterbta.blogg.se - Ni opc server tutorial

If nothing helps, open DCOM connections for everyone. You should configure DCOM as described in section 4. This error means that the current permissions are not enough to establish a connection. In Windows Firewall, you should add inbound and outbound "Custom" rules: All programs → All protocols and ports → Your remote IP address → Allow the connection.

Try to allow all incoming and outgoing connections to the remote IP address on the client computer.

If the error occurs during an attempt to connect to the OPC server, you should make sure that the executable file of the OPC server is added to the Windows firewall exception list.

Windows Firewall has the inbound rule "Windows Management Instrumentation (DCOM-In)." You need to enable this rule.

You should make sure that inbound DCOM connections to port 135 are permitted.

The OpcEnum.exe file located in the Windows\System32 folder by default must be added to exceptions.

If the error occurs during an attempt to get the list of OPC servers on the remote computer, you should check the firewall settings.It may appear if you are connecting to a remote OPC server.

This error means that it is impossible to establish a network connection to the RPC service. Typical problems 5.1 RPC server unavailable