PCo Data Types

PCo Data Type Repository

The data types for a specific PCo installation are stored in the PCo data type repository. The data types are defined here for the following configuration elements:

• Subscription items

• Output expressions and their calculations and context items

• Input and output variables of destination systems

• Input and output parameters of methods

• Variables and calculations in multiple call destination systems

Data Type Categories

The PCo data types are divided into the following categories:

• Elementary Data Types

• Structured Data Types

• Array Data Types

• Enumeration Data Types

There are restrictions with regard to the support of the various PCo data type categories. (See: Support of Data Type Categories.)

Namespaces

PCo data types are organized in namespaces so that a data type can be assigned to a particular business context, if necessary. A PCo data type is identified by the combination of namespace and data type name. (See also: Namespaces.)

In the Select Data Type dialog box, the data types provided by SAP are displayed with the namespace description (SAP data types).

You can change the namespace and name when importing data types from any proposed PCo data type.

Customer-Specific Data Types

You can create customer-specific data types in the PCo data type repository by importing data types from the following configuration elements:

• OPC UA source system (see: Import OPC UA Data Types into the PCo Data Type Repository)

• MQTT source system (see: Import Data Types into the Data Type Repository)

• MQTT destination system (see: Datentypen in das Datentypverzeichnis importieren)

• Universal Web service destination system (see: Import Data Types into the Data Type Repository)

Subsequent changing or deletion of customer-specific data types from the PCo data type repository is not supported.