User manual

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Command
Corresponding command
ResponseOperation
USER To enter the user name 331, 500, 530
PASS To enter the password 230, 500, 503, 530
PORT To notify the data port No. 200, 500
TYPE To switch the file type 200
PWD
(
XPWD
)
To display the current directory 257
RETR To acquire the file 150, 226, 510, 552, 550
PASV To enable the passive mode 227, 510
LIST
(
NLST
)
To acquire the file list 150, 226, 510
NOOP No operation 200
QUIT To terminate (disconnection) 221
Response message
200 Command OK.
150 File status OK; About to open data connection.
220 FTP server ready.
221 Goodbye.
226 Closing data connection.
227 Entering Passive Mode < IP address and port No. >
230 User logged in.
257 "/" is current directory.
331 User name OK. Need password.
500 Command not understood.
502 Command not implemented.
503 Login with USER first.
510 port open fails.
530 Not logged in.
530 Already logged in.
550 < File name > : No such file.
552 Requested file action aborted.
Specifications of the FTP server
Port: No. 21
Connection time-out: 15min
Number of connections at the same time: 1
Note: Even when the file type is changed to ASCII at the TYPE command, the file is
transmitted in the Binary mode.