UDP_ReceiveBuffer (FB)¶

FUNCTION_BLOCK UDP_ReceiveBuffer EXTENDS CBM.LTrig

Like UDP_Receive this function block serves to receive data.

The function block returns the handle of the buffer containing the data. As long as xReady is TRUE a new handle for the buffer can arrive. ipFrom and uiPortFrom indicate the ip and port the data was received from. The buffer is passed on and not copied like at UDP_Receive.

InOut:

Scope	Name	Type	Comment	Inherited from
Input	`xEnable`	`BOOL`	`TRUE`: Action starts `FALSE`: Action stops, outputs `xDone`, `xBusy`, `xError` are resetted	LTrig
Output	`xDone`	`BOOL`	`TRUE`: Action successfully completed	LTrig
	`xBusy`	`BOOL`	`TRUE`: Function block active	LTrig
	`xError`	`BOOL`	`TRUE`: Error occurred, function block aborts action `FALSE`: No error	LTrig
Input	`hPeer`	`CAA.HANDLE`
Output	`eError`	ERROR
	`xReady`	`BOOL`
	`ipFrom`	IP_ADDR
	`uiPortFrom`	`UINT`
	`hBuffer`	`CAA.HANDLE`