Connection (FB)¶

FUNCTION_BLOCK PUBLIC FINAL Connection EXTENDS Component IMPLEMENTS IConnection, IGroupElement, IConnection_Internal

This Function Block represents a Pub Sub Connections.
A Pub Sub Connection is a combination of protocol selection, protocol settings and addressing information.
See IConnection for more details.
If necessary create a ConnectionDiagnostics instance and connect it to itfConnectionDiagnostics.
It will offer the diagnostic data of an Pub Sub Connection via the itfDiagnostics output.
The udiPublishingInterval is set in WriterGroup function block.

See: PubSubConnectionType at OPC Foundation.

InOut:

Scope	Name	Type	Initial	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	`itfAsyncProperty`	IAsyncProperty
	`itfTSNContext`	ITSNContext
	`uiPublisherId`	`UINT`
	`itfIPAddress`	IIPAddress
	`uiPort`	`UINT`	UDP.PORT
	`itfPublisherIP`	IIPAddress
	`uiPublisherPort`	`UINT`	UDP.PORT
	`itfSubscriberIPSet`	IIPAddressSet
	`itfConnectionDiagnostics`	IConnectionDiagnostics
Input	`itfConfiguration`	IConfiguration
Output	`itfDiagnostics`	IConnectionDiagnostics
Output	`itfConnection`	IConnection

Methods:

SetInitialValue

Structure:

SetInitialValue (Method)