No need to create users on the computer with the OPC server.It is possible for the computer with the server not to belong to the domain.For example, when the computer with the OPC server does not belong to a domain, and many clients connect to the server. Sometimes it may be necessary to permit access to the OPC server for everyone, including anonymous users. 4.3 Configuring the Everyone access to OPC serversĪttention! Access permission for everyone may lower the security level of the computer. They will be available for detection via OpcEnum and connection only after such initialization. It is necessary for some OPC servers to be launched with administrator permissions at least once in order to get registered in the system and initialize the parameters of the OPC server. Or restart the OPC server after you edit its properties. Before you edit the properties of the OPC server, you should make sure that it is not running and is absent in the list of active processes. You should specify the previously created user that will launch the OPC server on the Identity tab. Since all properties have already been specified for the entire computer, you should make sure that the OPC server uses the default properties. 26 Specifying DCOM properties for the OPC server 25 Configuring protocols 4.2 Specifying OPC server propertiesįig. 22).ĭelete all protocols except for TCP/IP on the Default Protocols tab (fig.25) and click OK to save the changes in the My Computer - Properties dialog box.įig. Repeat the operations in the Launch and Activation Permission dialog box (fig.24) that appears when you click the Edit Default button (fig. Add the DCOM users group by performing operations similar to those shown in figures 7 – 9.19.2 Starting Component Services (case 2) 4.1 Specifying the default propertiesĬlick button 1 (fig. 19.1 Starting Component Services (case 1)įig. To run the command from the command line, open the Run dialog box by pressing Win+R on the keyboard.įig.
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64-bit version of Windows and 32-bit OPC server executable file – mmc comexp.msc /32 command (fig.64-bit version of Windows and 64-bit OPC server executable file - dcomcnfg command (fig.
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Ni opc server example how to#
This example shows how to specify the properties for the test OPC server "Test OPC Server" (it is a 32-bit application).
Ni opc server example install#
There is no need to configure OpcEnum because this service is automatically configured when you install OPC Core Components. Specifying DCOM propertiesįor OPC servers to run correctly, you should specify the DCOM network and security properties.