Step 3 (for server): Configuring the OPC Classic server-specific DCOM settings
Configure your OPC Classic server machine settings to enable OPC Classic clients to access your OPC Classic server. These settings are specific to your OPC Classic server.
-
Go to Control Panel > Administrative Tools > Component Services. The Component Services dialog opens.
-
From the Component Services dialog, expand the folders Console Root > Component Services > Computer > My Computer > DCOM Config and find the OPC Classic server you want to modify. For CSense this is the CSense Server.
-
Right click the server name, and click Properties.
-
Configure the tabs to your network's needs. Configuration required on each tab is listed below.
NOTE: When configuring these settings, remember that a client and server negotiate to the highest level of authentication when the configured authentication levels differ.
Note: Configure these tabs for each OPC Classic server that will use DCOM.
General tab
Ensure that the Authentication Level is set to Default. This uses the default authentication rules that are set in the system-wide DCOM settings.
Location tab
Only the Run application on this computer check box must be checked. Alternately, if this option is greyed out, then none of the check boxes should be selected.
Security tab
Launch and activation permissions
-
Select the Customize radio button and click Edit.
-
The Launch and Activation Permission security dialog appears.
-
Click Add. The Select Users, Computers, Service Accounts, or Groups dialog appears. Select the users or user groups that are entitled to launch and activate the OPC Classic servers.
-
If you have added a specific group for the OPC Classic users, click Advanced. Another dialog appears. Click Find Now. In the search results, select your OPC group and click OK. The dialog box displays the OPC group.
-
-
Click OK to return to the Launch and Activation Permission dialog box. The OPC group is displayed in the Group or user names list.
-
For each group or user name, highlight it and then check the Allow check boxes for Local Launch, Remote Launch, Local Activation, and Remote Activation permissions.
Access permissions
-
Select the Customize radio button and click Edit.
-
The Access Permission security dialog appears.
-
Click Add. The Select Users, Computers, Service Accounts, or Groups dialog appears. Select the users or user groups that are entitled to access the OPC Classic servers.
-
If you have added a specific group for the OPC users, click Advanced. Another dialog appears. Click Find Now. In the search results, select your OPC group and click OK. The dialog box displays the OPC group.
-
-
Click OK to return to the Access Permission dialog. The OPC group is displayed in the Group or user names list.
-
For each group or user name, highlight it and then check the Allow check boxes for Local Access and Remote Access.
Configuration permissions
-
Select the Customize radio button and click Edit.
-
The Change Configuration Permission security dialog appears.
-
Click Add. The Select Users, Computers, Service Accounts, or Groups dialog appears. Select the users or user groups that are entitled to configure the OPC Classic servers.
-
If you have added a specific group for the OPC users, click Advanced. Another dialog appears.
-
Click Find Now. In the search results, select your OPC group and click OK. The dialog displays the OPC group.
-
-
Click OK to return to the Change Configuration Permission dialog. The OPC group is displayed in the Group or user names list.
-
Select the OPC group and then check the Allow check boxes for Full Control and Read permissions.
Endpoints tab
No changes to be made. Continue to use the default system protocols.
Identity tab
Specify under which user account the OPC Classic server must run. This activates the launch identity security checks.
For Proficy CSense, select The launching user to continue to run the server in the default account. This is the Systems Account.
Related:
Configuring the OPC Classic server:
Configuring the OPC Classic client: