Reader (FB)¶

FUNCTION_BLOCK PUBLIC FINAL Reader EXTENDS Component IMPLEMENTS IReader, IGroupElement, IReader_Internal

This Function Block is used to represent the Data Set Reader Parameters.
See IReader for more details.
If necessary create a ReaderDiagnostics instance and connect it to itfReaderDiagnostics.
It will offer the diagnostic data of an Data Set Reader via the itfDiagnostics output.

See: DataSetReader at OPC Foundation.

InOut:

Scope	Name	Type	Comment	Inherited from
Output	`eErrorID`	ERROR	Reason for STATE.ERROR	Component
	`xActive`	`BOOL`	`True` 🠖 STATE.OPERATIONAL	Component
	`eState`	State	See: State Transition Diagram at STATE	Component
Input Const	`uiPublisherId`	`UINT`
	`uiWriterGroupId`	`UINT`
	`uiDataSetWriterId`	`UINT`
	`udiGroupVersion`	`UDINT`
	`itfReaderDiagnostics`	IReaderDiagnostics
Input	`itfReaderGroup`	IReaderGroup
Output	`itfDiagnostics`	IReaderDiagnostics
Output	`itfReader`	IReader

Methods:

SetInitialValue

Structure:

SetInitialValue (Method)