Lenze PC-based automation - Manual (Page 48)

Control technology| System manual
Remote maintenance and diagnostics
Dial-in on the IPC
48
L
DMS 1.3 EN - 02/2011
7.1 Dial-in on the IPC
An RAS server runs on the IPC. A user can log-in via modem/ISDN card on this RAS server. If
someone dials-in from a remote maintenance PC via this medium, the IPC executes a pass-
word check and then activates the connection.
7.2 Computer access via Telnet
The Telnet protocol serves to access the data of a PC. Telnet requires an existing local con-
nection or remote connection. Telnet is a command line-oriented protocol.
7.3 File transfer via FTP
To transfer files from one PC to another, FTP is frequently used. FTP is the abbreviation for
File Transfer Protocol.
 FTP requires an existing local connection or remote connection.
 FTP can be used via the command line, similar to Telnet.
Many programs have an integrated FTP support as for example the Internet Explorer.

Note!
Setting a remote maintenance is a potential safety risk! This is particularly rele-
vant if the computer to be remote-controlled is connected to an Ethernet net-
work. Always contact your IT administrator to take the necessary safety
measures.

Further information about the function and configuration of RAS servers can be
found in the following documentations:
• Industrial PC - parameter setting & configuration
• HMI EL 100 with Windows® CE

Note!
Telnet is a standard mechanism reserved for experienced users to change sys-
tem settings.

Further information about the function and configuration of FTP can be found in
the following documentations:
• Industrial PC - parameter setting & configuration
• HMI EL 100 with Windows® CE