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Using Socket Services by Manipulating Dedicated Control Bits Section 6-7
TCP Socket Close Request
6-7-7 Timing Charts
The timing of flags for socket services (Opening, Receiving, Sending, or Clos-
ing Flag) when the Request Switches are used and the changes in the
response code are shown in the following chart.
Closing during Other
Processes
The Close Request Switch or Force-close Switch can be used to close a
socket even when open, receive, or send processing is being executed. Clos-
ing is the only other process that is possible during other processes.
Response
code
Meaning
0000 Normal end
0302 CPU Unit error; cannot execute.
2210 The specified socket is not been connected.
2211 Unit is busy; cannot execute.
2607 Specified Socket Service Parameter Area is already being used for
another socket.
Request
Switch
Response
code
Flag
Response code stored
Request Switch
turned ON.
Request
accepted.
Not synced with
Request Switch.