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