ArchestrA Item Names

This section describes how a connected client requests access to items (or attributes) of a particular ArchestrA data source.

Important: OI Gateway supports writes to ArchestrA items configured as SecuredWrite. It does not support writes to an item whose security is configured as VerifiedWrite.

The following are examples of pairs of client/data source connections via OI Gateway, and their associated item name syntax:

• To access an item in ArchestrA via OI Gateway through an OPC client, use the following syntax:

  Establish connection:

  "OI.Gateway.1"

  Reference item:

  "ArchestrA.TIC101.PV"

• To access an item in ArchestrA via OI Gateway through a DDE or SuiteLink client, use the following syntax:

  Establish connection:

  Application = Gateway

  Topic (Device Group) = ArchestrA

  Reference item:

  "TIC101.PV"