8 BUILT-IN ETHERNET FUNCTION INSTRUCTIONS
8.5 File Transfer Function Instructions
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• If a cable is disconnected, power is shut off, or the CPU module is reset during the file transfer processing, transfer files
again. In those cases, unnecessary files will be deleted in the following ways.
• When a file with the same name has already existed in the transfer destination and its access is restricted by the file
password function, the SP.FTPGET instruction completes with an error.
• When b3 (Temporary file create setting) of (s1)+0 is set to 0 (Create), set the maximum number of characters in the folder
path of the CPU module to 243 (242 when a delimiter at the end of the string is omitted). Since a temporary file of 12
characters (FTPCLI_I.TMP) is created in the transfer destination, set the folder path so that the total number of characters
in the folder path and the temporary file does not exceed the maximum path length (255 characters) supported by the CPU
module.
• Do not use any unsupported characters. If an unsupported character is included in the file name or the folder name
specified by (s2) and (s3), the character is converted to "_" and processed. For this reason, the corresponding file is
transferred in the same way as files having the same file name or folder name after character conversion are transferred.
When wild card characters are used and an unsupported character is included in the name of files stored in the transfer
source FTP server, files cannot be retrieved properly. (How to treat unsupported characters depends on the specifications
of the FTP server.)
Unnecessary file Delete operation
Temporary file (FTPCLI_I.TMP) A temporary file left in the FTP client will be automatically deleted at the start of next file transfer processing to
the same folder.
Undefined transfer target file An undefined transfer target file left in the FTP client will be overwritten during next file transfer processing to the
same file.
Error code
(SD0)
Description
2820H There is no NULL code (0000H) in each setting area in the device/label memory in device specified by (s2), (s3) and later.
3405H The number of characters in the string specified by (s2) exceeds 255.
The number of characters in the path specified by (s2), excluding the file name, exceeds 246 (not including a delimiter).
The total number of characters in the strings specified by (s3) and (s2) (only the file name part) exceeds 255.
The drive number specified by (s3) is out of range.
3426H A file name is not specified by (s2).
The file name that cannot be transferred is specified by (s2).
The delimiter used to separate the drive number in (s3) is neither ':\' nor ':/'.
Two or more asterisks '*' are used in the file name (before the period) or the extension specified by (s2).
An asterisk '*' and a question mark '?' are used in the file name (before the period) or the extension specified by (s2).
Wild card characters, '*' and '?', are used in the string specified by (s3).
3430H The SP.FTPGET instruction was executed without setting FTP client parameters.
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