Omron V750 series, Network Connection Manual

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9. Program
38
(4)TCP connection status error that occurs when ending the processing
This program always performs the close processing at the end of the whole processing
regardless of whether each processing from the connect processing to the receive
processing ends normally or in an error. The TCP connection status variable
TcpStatus
of
the SktGetTCPStatus instruction is used to detect whether the close processing ended
normally. When the close processing is operated abnormally, the next connect processing
may not be performed normally. For the corrective actions of the TCP connection status
errors, refer to
9.7.2 TCP Connection Status Errors and Corrective Actions
.