Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 1128

• Specify the folder path of the transfer destination FTP server in (s3) in Unicode string. The specified folder path shall be a
relative path from home directory of the FTP server. Use one-byte '\' or '/' as a delimiter to specify the boundary of the folder
*1
path. The maximum number of characters used in the folder path is 255. Note that the total number of characters in a
folder path (including the delimiter at the end) and the file name specified in (s2) must be within the maximum path length
supported by the transfer destination FTP server. The delimiter at the end of a string can be omitted. When omitted, '\' is
assumed to be set at the end. If a nonexistent folder path is specified, a folder is automatically created by the system at
execution of the instruction, and then the processing is performed.
255 characters maximum
[... "\database1\recipe\" ...]
(1)Use one-byte '\' or '/' as a delimiter to specify the boundary of the folder path.
(2)The delimiter at the end of string can be omitted.
*1 Note that '\' cannot be used as a delimiter for some FTP servers.
• If a NULL character is specified by (s3) or only "0000H" is specified for the device, the CPU module directly accesses under
the home directory of the FTP server. For details, follow the FTP server specifications.
• If a file with the same name exists in the transfer destination, the file will be overwritten.
• The maximum size of a file that can be send is 4G bytes.
• The execution status and the completion status of the SP.FTPPUT instruction can be checked with the completion device
(d) and the completion status indication device (d)+1.
• Completion device (d)
This device turns on during END processing of the scan where the SP.FTPPUT instruction completes, and turns off during the next END processing.
• Completion status indication device (d)+1
This device turns on or off depending on the completion status of the SP.FTPPUT instruction.
When completed successfully: The device remains off.
When completed with an error: The device turns on during END processing of the scan where the SP.FTPPUT instruction completes, and turns off during the
next END processing. In addition, an error code is stored in the device specified by (s1)+1.
• The following figure shows the execution timing of the SP.FTPPUT instruction.
Sequence scan
SP.FTPPUT instruction
Completion status (s1)+1
Total number of files to be
transferred (s1)+2
Number of transferred files
(s1)+3
Completion device (d)
Completion status
indication device (d)+1
FTP client connection status
(SM1392)
(1)SM1392 turns on during the END processing after the CPU module is connected to the FTP server.
(2)Values are stored upon completion of the instruction.
(3)When all files have been transferred, SM1392 turns off.
• SM1392 (FTP client connection status) is on while the CPU module is connected to the FTP server, and SM1392 turns off
when disconnected.
• SM753 (File access in progress) turns on while the SP.FTPPUT instruction is being executed. While SM753 is on, the
SP.FTPPUT instruction cannot be executed. If executed, no processing is performed.
• If the SP.FTPPUT instruction is executed while the SP.FTPPUT or SP.FTPGET instruction is being executed, the instruction
is ignored and not executed until the currently executing instruction completes. When the instruction is ignored, SM699
(Dedicated instruction skip flag) turns on.
8 BUILT-IN ETHERNET FUNCTION INSTRUCTIONS
1126
8.5 File Transfer Function Instructions
(1) (2)
0 END 0 END
Execution of the instruction
OFF
OFF
(1)
*1
0 END 0 END
(2)
ON
Completed with an error
ON
Completed successfully
1 scan
File transfer
(3)
OFF
OFF