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`