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This takes you to the new OPC Connection screen.

Confirm your settings and click Finish.

On the Manage Certificate page select Yes for Trust Certificate? and click Next. Once an endpoint configuration has been selected, click the Next button. For more information on advanced settings, refer to DCOM - Secure by Default.Select the Server you want and click Next.Ī list of available Endpoints with Security Policies and Security Modes options appears. Note: For information on properly configuring DCOM, refer to the Remote OPC DA Quick Start Guide (DCOM).

A typical DCOM configuration must be applied both at the My Computer and application level on the server computer.

If a computer belongs to a workgroup and another domain, the two computers must authenticate using the requirements specified by the workgroup.The Network access: Let Everyone permissions apply to anonymous users Local Security Policy must be set to Enable on the client computer.The Network access: Sharing and security model for local accounts Local Security Policy must be set to Classic - local users authenticate as themselves on the server computer.The user account (or the group that includes the user account) must belong to the local Administrators group on the server computer.In most cases, the default security policy settings require that the user account be assigned the same password on both computers.

The client application must attempt the connection using a Windows account that has the same credentials as an account that is already present on the server computer.

Therefore, when using DCOM to establish a remote connection between computers on a workgroup, users must take the following precautions in order for the connection to succeed. Computers that belong to a workgroup must assume the authentication role of the services that are normally present on a domain.