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PI to PI Interface

Interface status digital point configuration

  • Last UpdatedOct 06, 2025
  • 2 minute read

The following procedure describes how to create and configure interface status points. Create these status points on the receiving PI server.

First, create digital state sets for the status points. The following tables display the digital state set definitions:

  • Digital states for the Internal Status point digital state set:

    Digital State

    String

    0

    STARTUP

    1

    HISTORYRECOVERY

    2

    SCANNING

    3

    SHUTDOWN

    4

    ACCESSDENIED

    5

    SRCDISCONNECT

    Note: SRCDISCONNECT designates that digital state is disconnected from the source PI DA.

    6

    RCVDISCONNECT

    Note: RCVDISCONNECT designates that digital state is disconnected from the destination PI DA.

  • Digital states for the Failover Status point digital state set:

    Digital State

    String

    Description of use by the interface

    0

    RECONNECTING

    If the interface is not connected to the source server and is configured to have at least one source connect retry (command line parameter /NT=x where x is at least 1), this status will be written to the failover status point. The interface will then attempt to reconnect to the source server x times before it attempts failover to the other source server.

    1

    PRIMARY

    Written after a successful failover to the primary source server.

    2

    FAILOVER

    Written as one of the first things the interface does before initializing a failover.

    3

    SECONDARY

    Written after a successful failover to the secondary source server.

    Then, create a digital point on the receiving PI server with the following attributes:

    Attribute

    Value

    PointSource

    L

    PointType

    Digital

    Compressing

    0

    ExcDev

    0

    DigitalStateSet

    As defined in the receiving PI3 server digital state database. In this case, use either the name of the digital state set you created for Internal status or for Failover status - depending on which interface status point you are creating.

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