FUNCTION_BLOCK TCP_Connection EXTENDS CBM.LTrig
The next free connection is determined by handle exchange and set to active. As long as xActive is TRUE the handle of the connection is valid. If xActiveis FALSE the handle of the connection is invalid. hConnection can be used as input hConnection for function blocks TCP_Write, TCP_WriteBuffer, TCP_Read and TCP_ReadBuffer.
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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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hServer
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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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xActive
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BOOL
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hConnection
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CAA.HANDLE
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