Modifying Driver-Specific DCOM Settings on Windows 2003

About this task

Procedure

  1. Access the DCOM configurator (dcomcnfg.exe).
    The Component Services dialog box appears.
  2. Expand Component Services > Computers > My Computer, then select the DCOM Config object.
    A list of applications displays.
  3. Right-click the Proficy Historian HDA server 3.5 and choose Properties.
    The Historian HDA server 3.5 Properties dialog box appears.
  4. Click the General tab.
    The Authentication Level should be left as "Default." This uses the default authentication rules that are set in the system-wide DCOM settings.
  5. Click the Location tab and make sure that the Run Application on this computer check box is selected.
  6. Click the Security tab and select the Customize option for each of the permissions in this dialog box and edit them as described in the following steps.
  7. In the Launch Permissions area, click Edit.
    The Launch Permissions dialog box appears.
  8. Click the Add button.
    The Select Users and Groups dialog box appears.
  9. Click the Advanced Button.
    The Select Users and Groups dialog box appears.
  10. Click the Find Now button, then in the search results, select the OPC group and click OK.
    The Select Users and Groups dialog box displays the OPC group.
  11. Click OK to return to the Launch Permission dialog box.
    The OPC group is displayed in the Group or user names list.
  12. Select the OPC group and select the Allow check box for Launch Permission.
  13. Click OK to return to the Historian HDA server 3.5 Properties dialog box.
  14. In the Access Permissions area, click Edit.
    The Access Permission dialog box appears.
  15. Click the Add button.
    The Select Users and Groups dialog box appears.
  16. Click the Advanced Button.
    The Select Users and Groups dialog box appears.
  17. Click the Find Now button, then in the search results, select the OPC group and click OK.
    The Select Users and Groups dialog box displays the OPC group.
  18. Click OK to return to the Access Permission dialog box.
    The OPC group is displayed in the Group or user names list.
  19. Select the OPC group and select the Allow check box for Access Permission.
  20. Click OK to return to the Historian HDA server 3.5 Properties dialog box.
  21. In the Configuration Permissions area, click Edit.
    The Change Configuration Permission dialog box appears.
  22. Click the Add button.
    The Select Users and Groups dialog box appears.
  23. Click the Advanced button.
    The Select Users and Groups dialog box appears.
  24. Click the Find Now button, then in the search results, select the OPC group and click OK.
    The Select Users and Groups dialog box displays the OPC group.
  25. Click OK to return to the Change Configuration Permission dialog box.
  26. Select the OPC group and select the Allow check boxes for Full Control and Read.
  27. Click OK to return to the Historian HDA server 3.5 Properties dialog box.
  28. Click OK.
  29. Repeat steps 2 through 28 for each OPC server that you need to access remotely.
  30. When you are done, close the Component Services dialog box.