9. Program
70
●
TCP connection status error [Output_EtnTcpSta]
If the TCP connection status does not enter the normal status (
_CLOSED
) in time after the
close processing, a TCP connection status code is set in the
Output_EtnTcpSta
variable. (If
the close processing ends in error, check this also.)
Error code enumerator
_eCONNECTION_STATE
Description
_CLOSED
Connection closed. (Normal status)
_LISTEN
Waiting for connection
_SYN SENT
SYN sent in active status.
_SYN RECEIVED
SYN sent and received.
_ESTABLISHED
Already established.
_CLOSE WAIT
FIN received and waiting for completion.
_FIN WAIT1
Completed and FIN sent.
_CLOSING
Completed and exchanged FIN. Awaiting ACK.
_LAST ACK
FIN received and completed. Awaiting ACK.
_FIN WAIT2
Completed and ACK received. Awaiting FIN.
_TIME WAIT
After closing, pauses twice the maximum segment life (2MSL).
Summary of Contents for V750 series
Page 51: ...9 Program 2 Initialization processing 48...
Page 52: ...9 Program 49...
Page 53: ...9 Program 3 Connect processing 50...
Page 54: ...9 Program 4 Send processing 51...
Page 55: ...9 Program 5 Receive processing 52...
Page 56: ...9 Program 53...
Page 57: ...9 Program 6 Close processing 54...
Page 58: ...9 Program 7 Processing number error process 55...
Page 60: ...9 Program Program 57...
Page 62: ...9 Program Program 59...
Page 64: ...9 Program Program 61...
Page 78: ...2013 0911 P543 E1 01...