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AVEVA™ Adapter for Modbus TCP

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Stream creation

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  • Last UpdatedAug 21, 2026
  • 1 minute read

Stream creation

The Modbus TCP adapter creates a stream with two properties for each selected Modbus TCP item. The properties are described in the following table.

Property name

Data type

Description

Timestamp

String

The response time of the stream data from the Modbus TCP device

Value

Specified by the data selection

The value of the stream data from the Modbus TCP device

Certain metadata are sent with each stream created. The following metadata are common for every adapter type:

  • ComponentId: Specifies the data source, for example, Modbus1

  • ComponentType: Specifies the type of adapter, for example, Modbus

Each stream created for the selected measurement has a unique identifier (stream ID). If you specify a custom stream ID for the measurement in the data selection configuration, the adapter uses that stream ID to create the stream. Otherwise, the adapter constructs the stream ID using the following format:

<AdapterComponentID>.<Device ID>.<Unit ID>.<Register Type>.<Register Offset>

Note: Naming convention is affected by StreamIdPrefix and DefaultStreamIdPattern settings in the data source configuration. For more information, see Configure data source.