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Using Socket Services by Manipulating Dedicated Control Bits Section 6-7
TCP Socket Passive Open Request
Note These response codes will be returned only on large, multilevel networks.
TCP Socket Active Open Request
Response
code
Meaning
0000 Normal end
0105 Local IP address setting error.
0302 CPU Unit error; cannot execute.
1100 TCP socket number is not 1 to 8 or local TCP port number is 0.
110C Request Switch turned ON during other processing.
220F Specified socket is already open or already processing an open
request.
2211 Unit is busy; cannot execute.
2606 Specified socket is already open as UDP socket; cannot open TCP
socket.
2607 Specified Socket Service Parameter Area is already being used for
another socket.
003E Internal buffer cannot be obtained due to high reception traffic
(ENOBUFS).
0042
(See note.)
An error occurred. (EMSGSIZE).
0045 Error in communications with remote node (ECONNABORTED).
0049 The same TCP port number has been specified more than once
(EADDRINUSE).
004A
(See note.)
Error (ECONNREFUSED).
004B
(See note.)
Error in communications with remote node (ECONNRESET).
004E
(See note.)
Remote IP address parameter error (ENETUNREACH).
0051
(See note.)
Remote IP address parameter error (EHOSTUNREACH).
0053 Error in communications with remote node (ETIMEDOUT) or remote
node does not exist.
0066 Internal memory cannot be obtained; cannot execute.
0080 Open request timed out.
0081 The specified socket was closed during open processing.
0082 Connection could not be established with specified remote node.
Response
code
Meaning
0000 Normal end
0105 Local IP address setting error.
0302 CPU Unit error; cannot execute.
1100 TCP socket number is not 1 to 8 or local TCP port number is 0.
110C Request Switch turned ON during other processing.
220F Specified socket is already open or already processing an open
request.
2211 Unit is busy; cannot execute.
2606 Specified socket is already open as UDP socket; cannot open TCP
socket.
2607 Specified Socket Service Parameter Area is already being used for
another socket.