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PI Interface for OPC Alarms and Events

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Create and configure the interface instance

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  • Last UpdatedOct 20, 2026
  • 1 minute read

For each OPCAE server intended to exchange data with the PI System, you must create at least one instance of the PI OPCAE interface. For each instance you create, settings are stored in a separate Windows command file (a .bat file) in the PI OPCAE interface installation directory.

Note: Configure multiple instances of the PI Interface for OPC AE with unique interface ID (id) and point source (ps) startup parameters to more easily identify where the data written to PI Data Archive originated, and trace any problems that arise.

Procedure

  1. Launch PI ICU and click Interface > New from BAT file.

  2. Browse to the interface installation directory (default %PIPC%\Interfaces\OPCInt), select OPCInt.bat_new, and then click Open. The Select PI Host Server window opens.

  3. Specify the PI Data Archive and click OK. PI ICU displays the settings of the new instance of the interface.

  4. Configure the basic settings as follows:

    • General tab

      Point source

      ID

      Scan Class

      Use OPC or a point source not already in use.

      Use 1 or a numeric ID not already in use by another instance of the interface.

      Set to desired scan frequency. Scan class 1 is reserved for advise tags. When defining multiple scan classes, you can spread the server workload using offsets.

    • OPCAE tab

      Enter the OPCAE Server name in the Server field. If the server resides on another machine, specify the node name or IP address in the Node field.