UDP_Receive (FB)

FUNCTION_BLOCK PUBLIC FINAL UDP_Receive EXTENDS LConC

This function block serves to receive data.

The pointer pData specifies the memory area to write the read data to. udiSize defines the max number of bytes to read. When data was read successfully, xReady is set to TRUE and udiCount indicates the actually read number of bytes. itfIPAddressFrom and uiPortFrom indicate the ip and port the data was received from.

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	itfPeer	IPeer
	pData	__XWORD
	udiSize	UDINT
Output	xReady	BOOL
	itfIPAddressFrom	IIPAddress
	uiPortFrom	UINT
	udiCount	UDINT