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Version: 5.6

README

title: Transfer Object sidebar_label: Transfer Object​

Transfer Object

Overview of transfer objects:

Transfer ObjectDescription
OPC Data AccessRead or write one or more current values on the OPC server.
OPC Structures

Enables reading and writing of complex data types (structures and structure arrays) from an OPC UA server.

Example: Current job defined as a structure in the PLC.

OPC MessageSecure transmission of OPC telegrams via change counters with an optional configurable response telegram
OPC Methods¹

Call OPC UA methods on the target OPC server. In OPC UA, methods provide both input and return parameters.

Example: Euromap 77 includes a method for starting a job. This allows the machine to execute various logic operations within the call and return the result.

Multiple OPC Read¹Dynamically read changes under a selected OPC node. You can set filters for desired and undesired elements.
OPC Batch Read¹

The OPC Batch Read transfer object simplifies the reading of multiple OPC values that have a uniform structure, without having to specify each value individually.

Example: Reading lists of orders with their properties. The order structure and list length need to be defined only once.

OPC HA Read¹“OPC HA Read” reads data from an OPC UA Historian/OPC UA HA server and provides historical value trends or aggregated values for further use in OPC Router.

Note: Some transfer objects are only available for OPC UA. These transfer objects are marked with ¹ in the table above.