Choose your preferred language and destination directory (default is often C:\JXServer or similar). Feature Selection: Select the specific components needed, such as the OPC DA Client Toolkit for real-time data or the OPC A&E Client Toolkit for alarms and events. Registration:

Check the boxes if you want to create a desktop shortcut or a Quick Launch icon. Click Next .

You must have Administrative Privileges to register DLLs and configure DCOM settings.

Guide to FactorySoft OPC Client Installation and Configuration

Ensure both the client PC and server PC share identical user accounts with matching passwords.

Click Add Items or Browse . This opens the server's internal database tree. Navigate to your desired PLC tags or simulated variables.

Under the tab, ensure Enable Distributed COM on this computer is checked.

Navigate to .

Adhering to these practices will ensure a robust and maintainable OPC Client setup.

Which specific (e.g., Kepware, RSLinx, Matrikon) are you trying to connect to?

Review the DCOM configuration steps outlined above. Ensure that the Windows user account running the FactorySoft client has matching credentials (same username and password) on the computer hosting the OPC server. Error: The application crashes instantly on startup