Omron CJ1W-ETN21 Fins Frame Send Command, Following table shows the list of error codes

FINS/TCP Method Section 7-4

When automatically allocated FINS node addresses are set, the client node address automatically allocated at the server is stored in the client node address field.

After a connection has been established as a FINS/TCP client or server, do not send this command again. Otherwise, the error code (00000003 hexadec- imal: The command is not supported) will be received in the FINS FRAME SEND ERROR NOTIFICATION command and the connection will be termi- nated.

FINS/TCP header

Header

Length

Command

Error code

Client node address

Size (bytes)

4

4

4

4

4

FINS FRAME SEND Command

Server node address 4

The details of the above frame are shown in the following table.

Item	Contents (hexadecimal)	Remarks
Header	46494E53	ASCII code: ‘FINS’
Length	00000010	16 bytes: Length of data from
		command onwards.
Command	00000001
Error code	---	Refer to the following table of
		error codes.
Client node address	00000001 to 000000FE	1 to 254
(FINS node address
of FINS/TCP client)
Server node address	00000001 to 000000FE	1 to 254
(Fins node address
of FINS/TCP server)

The following table shows the list of error codes.

Error code	Details
(hexadecimal)
00000000	Normal
00000001	The header is not ‘FINS’ (ASCII code).
00000002	The data length is too long.
00000003	The command is not supported.
00000020	All connections are in use.
00000021	The specified node is already connected.
00000022	Attempt to access a protected node from an unspecified IP
	address.
00000023	The client FINS node address is out of range.
00000024	The same FINS node address is being used by the client and
	server.
00000025	All the node addresses available for allocation have been
	used.

When FINS frames are sent using TCP/IP, always add the FINS FRAME SEND command to the beginning of the FINS frame. The FINS frame is sepa- rated out from the TCP data line following the data length in the FINS FRAME SEND command.

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