Configure the OPC DA interface

After the interface software is installed, you must configure the following items:

• Startup parameters

• Security

• Windows service

• PI points

• Buffering

Additional configuration options include failover, disconnected startup, and interface performance and status points. For details about configuration for common UniInt interface features, refer to the PI Universal Interface (UniInt) User Guide.

Copies of the interface software, called interface instances, can be made on one or more interface nodes. Each interface instance requires its own startup (.bat) file. The .bat file contains parameters, sometimes called flags, which are configured to create the startup and runtime settings of the interface.

Use PI ICU to configure interface settings to ensure a correctly-formatted .bat file. Once the first interface instance is configured, you can use a copy of the configured .bat file and replace instance-specific parameters for each interface instance. The .bat files are located in the installation directory for the interface, which also includes a template batch file (opcint.bat_new) that you can use for reference and testing.

The .bat file parameters can also be run from the command line for testing and troubleshooting. For a complete list of parameters, open a command window, navigate to the interface installation directory, and issue the following command: opcint -help.