Omron CS1W-ETN21 Eisconn, Enotconn, Ealready, Emsgsize, Edestaddrreq, Enoprotoopt, Einprogress

Results Storage Area Response Codes				Section 8-6
Response	UNIX error	Description		Probable remedy
code	message
003F	EISCONN	Socket is already connected (con-	Close the local socket and try reopening it.
		nection attempted to open socket)
0040	ENOTCONN	Socket is not connected (send
		attempted to closed socket)
0041	EALREADY	Operation already in progress (con-
		nection attempted to existing non-
		block connection)
0042	EMSGSIZE	Message too long	Check the length of send data.
			UDP or TCP:	1 to 1,982 bytes
			UDP broadcasts: 1 to 1,472 bytes
0043	EDESTADDRREQ	Destination address required (desti-	Close the local socket and try reopening it.
		nation address not specified)
0044	ENOPROTOOPT	Protocol not available (unsupported
		option specified)
0045	ECONNABORTED	Software caused connection abort
		(another task closed socket)
0046	EINPROGRESS	Operation now in progress (non-
		block connection ended during pro-
		cessing)
0047	ENOTSOCK	Socket operation on non-socket
0048	EOPNOTSUPP	Operation not supported on socket
0049	EADDRINUSE	Address already in use (UDP or	Check the port number.
		TCP open request sent for port	TCP ports can remain unusable for 1 min after
		already in use)
			closing.
004A	ECONNREFUSED	Connection refused (TCP socket	Passively open a remote TCP socket, checking
		(active open) processing refused by	the remote IP address and remote TCP port
		remote node)	number.
004B	ECONNRESET	Connection reset by peer (TCP	Close the local socket and try reconnecting.
		socket closed by remote node)
004C	EADDRNOTAVAIL	Can’t assign requested address	Check the setting of the remote IP address and
		(mistake in remote IP address)	try reconnecting.
004D	EAFNOSUPPORT	Address family not supported by	Close the local socket and try reopening it.
		protocol family
004E	ENETUNREACH	Network is unreachable	Set the path to the remote node in the IP router
			table.
004F	EHOSTDOWN	Host is down	Check the remote host and communications
			path.
0050	EWOULDBLOCK	Operation would block	Close the local socket and try reopening it.
0051	EHOSTUNREACH	No route to host	The specified node does not exist on the desig-
			nated IP network segment. Check the commu-
			nications path.
0053	ETIMEDOUT	Connection timed out (TCP timed	Check the remote host and communications
		out)	path.
0063	ESELABORT	Used for internal Ethernet Unit pro-	Close the local socket and try reopening it.
		cessing
0066	(None)	Internal memory cannot be allocated	Traffic is too high at the Ethernet Unit. Correct
		for processing; the service cannot	the user application to reduce traffic at the
		be provided.	Ethernet Unit.
0080	(None)	Timed out for passive TCP open	Either the remote node is not executing an
		request	active TCP open or there is a block on the net-
			work.

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