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18�1 The Com-Server as FTP client
This mode enables automated writing and reading of files to
and from any standard FTP server. The IP address/URL of the
FTP server are permanently stored in the setup of the Com-
Server. Two different methods are available for handling the
login procedure and control commands. Either all the infor-
mation such as user name, password, file command etc. are
permanently stored in the setup of the Com-Server, or they
are sent serially using a special control string in front of the
actual user data.
Application examples for FTP-Client mode
• Automated and paperless archiving of errors, status- and
fault messages for any devices. Sporadically or only occa-
sionally occurring messages can be stored in a file using
standard software.
• Embedded systems with a serial interface use simple ASCII
commands to get access to higher level file systems.