Setting a firewall on the FTP client side
If the FTP communication is blocked by a firewall on the FTP client side, data cannot be exchanged from the FTP server.
Check the firewall settings, enable FTP communication and then access the FTP server.
Monitoring timer
When operation of files such as program (.PRG) and FB file (.PFB) is performed in a CPU module with a large program
capacity, a timeout may occur due to long processing time on the CPU module. If a timeout occurs, increase the response
monitoring timer value. ( Page 253 Response Monitoring Timer)
Execution of the file transfer function (FTP server) during execution of another function
For some file transfer functions (FTP server), there are some functions that cannot be simultaneously executed. Check that
the function that cannot be simultaneously executed is not being executed and then execute the file transfer function (FTP
server).
File transfer function (FTP server)
File transfer function (FTP server) of the
RJ71EN71 and RnENCPU (network part)
File transfer function (FTP server) of the CPU module (built-in Ethernet port part)
1 FUNCTIONS
134
1.9 File Transfer Function (FTP server)
• Writing a file (put, mput, pm-write)
• Deleting a file (delete, mdelete)
• Changing a file name (rename)
• Changing a file attribute (change)
Functions that cannot be simultaneously executed
• CPU module data backup/restoration function
• iQ Sensor Solution data backup/restoration function