UDP_Peer (FB)¶

FUNCTION_BLOCK PUBLIC FINAL UDP_Peer EXTENDS LConC IMPLEMENTS IPeer

This function block activates a Peer by setting xEnable to TRUE.
A peer encapsulates all the necessary things for sending and receiving data over the UDP protocol.
The output itfPeer can be contected with UDP_Receive, UDP_Receiver, UDP_Send and UDP_Sender.
The Send and Receive methods can also be used as an alternative to the related traditional function blocks.

Sending or receiving multicast telegrams is only possible if the input itfMulticast has been assigned accordingly with an IPAddressSet.

InOut:

Scope	Name	Type	Comment	Inherited from
Input	`xEnable`	`BOOL`	`TRUE`: Activates the defined operation `FALSE`: Aborts/resets the defined operation	LConC
Output	`xBusy`	`BOOL`	`TRUE`: Operation is running	LConC
	`xError`	`BOOL`	`TRUE`: Error condition reached	LConC
	`eErrorID`	ERROR		LConC
Input	`itfAsyncProperty`	IAsyncProperty
	`itfIPAddress`	IIPAddress	IP Address of the specific Adpater for Receiving/Sending (The related Networkmask and Broadcast adresses for receiving will be calculated)
	`uiPort`	`UINT`	Receive Port
	`itfMulticast`	IIPAddressSet	One or more Multicast Groups (optional)
Output	`xActive`	`BOOL`	TRUE if the peer context is established
Output	`itfPeer`	IPeer	The established context of this peer Valid, as long `xActive` = `TRUE`

Methods:

Receive

Send

SetInitialValue

Structure: