User manual

Hot Standby
324
33002479 06 07/2008
FTP/TFTP Server The FTP/TFTP server is available as soon as the module receives an IP address.
Any FTP/TFTP client can logon to the module. Access requires the correct user
name and password. Modicon Quantum Hot Standby with Unity allows only 1 active
FTP/TFTP client session per NOE module.
When the Hot Standby switchover occurs, the primary CPU and secondary NOEs
close the FTP/TFTP connection. If you send an FTP/TFTP request during the
switchover, the communication is closed.
Whenever you re-open communication, you must re-enter a user name and a
password.