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Command/Response Reference Section 7-3
Response Codes
Results Storage Area Response Codes
Note These errors occur only in large multilayered networks.
Response code Description
0000 Normal
0105 Local IP address setting error
0302 CPU Unit error; execution not possible.
1001 Command too large
1002 Command too small
1100 TCP socket number is out of range.
Remote IP address or the remote TCP port number is 0.
1101 The variable type for the results storage area is out of range.
1103 Non-zero bit address specified for the results storage area.
220F The specified socket (connection) is already open or is being
opened.
2211 High traffic at Unit; cannot execute service.
2240 Socket service mode is incorrect; cannot execute service.
(With unit version 1.5 or later, the high-speed socket service
option was enabled and a socket service was used with a
CMND(490) instruction.)
Response code Description
0000 Normal
000D A parameter error occurred at the remote IP address
(EACCES).
003E Internal buffer cannot be reserved due to high receive load
(ENOBUFS).
0042 (see note) An error occurred (EMSGSIZE).
0044 Received ICMP data (ENOPROTOOPT).
0045 Local socket closed (ECONNABORTED).
0049 Duplicated port numbers (EADDRINUSE).
004A An error occurred (ECONNREFUSED).
Passive remote is not available.
004B (see note) A communication error occurred with the remote node
(ECONNRESET).
004C A parameter error occurred at the remote IP address (EAD-
DRNOTAVAIL).
A parameter was specified incorrectly.
An attempt was made to actively open local TCP port.
004E A parameter error occurred at the remote IP address
(ENETUNREACH). No network number in IP router table or
incorrect router setting.
0051 A parameter error occurred at the remote IP address
(EHOSTUNREACH). Incorrect router setting.
0053 A communication error occurred with the remote node
(ETIMEDOUT). No remote exists.
0081 Socket was closed during opening procedure.
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