22 
AC30 EtherNet IP Option 
FTP Server 
The option has a built-in FTP server enabling access to the FLASH-
based file system which hosts 2MByte of non-volatile storage. 
  
To enable the FTP server the parameter 0205 Option FTP Enable 
must be set to TRUE.  To access the file system an FTP client is 
required such as Windows Explorer.  Enter the IP address in to the 
address bar, for example ftp://192.168.1.57 
 
By default no files are stored on the file system (the built-in web files 
are virtual files). 
 
User Accounts 
User accounts are stored in the configuration file ‘\ftp.cfg’.  This file 
holds the usernames, passwords and home directory for all users. 
Usernames and password must not exceed 15 characters in length.  
Users are not able to access files outside of their home directory. 
 
File format: 
 
  Username1:Password1:Homedir1 
  Username2:Password2:Homedir2 
  … 
  UsernameN:PasswordN:HomedirN 
 
If there is no \ftp.cfg’ file or if the parameter 0206 Option FTP Admin 
Mode parameter is set to TRUE then there will be unrestricted access 
to the file system.