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OPC UA

The OPC UA (Open Platform Communications Unified Architecture) protocol in InDataX allows for establishing secure, reliable, and standardized communications with OPC servers, easily integrating cutting-edge PLCs and industrial software from various manufacturers.

Connection Parameters​

To configure the communication channel, define the following fields:

  • Name (Nombre): Unique identifier for the protocol.
  • IP Address (Dirección IP): The IP address of the OPC UA server that InDataX will connect to.
  • Port (Puerto): The server's listening port (typically 4840).

Variable Configuration​

In OPC UA, data access is performed by identifying nodes within the server's address space.

  • Name (Nombre): Identifying name of the variable.
  • Type (Tipo): Data type to which the value will be converted (Real, Integer, etc.).
  • Audit trail: Audit record for value changes.
  • Record value (Registrar valor): Inclusion in the Thing's historical records.
  • Node ID (ID del nodo): The unique identifier of the data on the OPC UA server. It must follow the standard syntax (e.g., ns=3;s="DBs"."DB1"."Temperature").
Node ID Structure

The Node ID is usually composed of the Namespace (ns) and an identifier that can be a string (s) or a number (i). Make sure to copy the exact ID as provided by your OPC UA server or exploration tool (such as UA Expert).