Siemens SINUMERIK 840D sl Commissioning Manual page 838

Configuring the system
2.5 Description of the actions
Supported file systems
Two types of remote file system are supported: Windows SMB and Unix NFS. These two
systems have completely different characteristics, particularly in terms of user administration:
● In Windows SMB, you connect to the server as a particular user that the server must
● In NFS servers, the connection itself does not require a particular user to be entered.
Notation of the remote file system
For SMB and NFS/TCU, the file system is entered using different notations:
SMB: //[USERNAME[/DOMAIN][%PASSWORD]@]SERVER/SHARE
The fixed share is: //SERVER/SHARE
The server name can of course also be a numeric IP address. SHARE is the name of the
release on the server. Note that the character '$', which often occurs in this type of name,
must be preceded by a backslash ('\') in the command line. Otherwise, the system tries to
expand a variable.
A user name can also be entered in front of the server name, separated with a '@' character.
If necessary, the user name can also be extended by adding '/' followed by the Windows
domain to which it belongs. The password belonging to this user is normally queried
interactively, so that it is not visible on the screen. ´
For some applications, however, it may be necessary to write the password on the command
line. (For example, programs started from WinSCP cannot read from the keyboard.) In this
case, you can append an additional '%' character, followed by the password. If this contains
any special characters that are interpreted by the shell (<, >, &, ;, ", ', $, (, ), |), you should
shield these by preceding them with a backslash. Commas in SMB passwords cannot be
interpreted.
NFS: SERVER:/PATH
In NFS, entering the user is not required, which just leaves the two components SERVER
and PATH. As before, SERVER is the name of the file server. In contrast to SMB, PATH is a
path name that exists on the server, and not an arbitrarily assigned name.
The command "sc show drives SERVER" shows the file systems offered by a particular
server in the correct notation. For SMB, if required, the user name etc. still need to be added.
42
recognize. Via this connection, you then access the files as this user, independently of
which local user triggers the action.
This feature means that in SMB systems, you already have to enter a user name, if
necessary its domain, and a password at the time that the connection is established.
Instead, for each file operation, the user who wants to carry out the operation must log on
to the server. The server then decides whether or not to permit this. Users are entered
using a user ID and group ID, not with names. The server must therefore recognize the
corresponding IDs (or permit access for all users.)
Another type of remote file system that is supported are USB memory devices exported
from TCUs (USB Flash Drive). Since these are integrated using NFS, the entries for
server and path are similar to those for NFS. However, the TCU names are administrated
differently, and the USB memory devices have specific paths that do not physically exist.
Commissioning Manual, 03/2013, 6FC5397-1DP40-3BA1
NCU operating system (IM7)