Remote Control Commands
R&S
®
SMB100A
303
Operating Manual 1407.0806.32 ─ 21
The
/opt
directory is a protected and therefore a not accessible system directory. The
files on this directory contain data that must not be changed. Therefore, this directory
should not be accessed, since reconstruction of the system partition will lead to data
loss.
7.10.1 File Naming Conventions
To enable files in different file systems to be used, the following file naming conven-
tions should be observed.
The file name can be of any length and is case-sensitive, meaning it is distinguished
between uppercase and lowercase letters.
The file and the optional file extension are separated by a dot. All letters and numbers
are permitted (numbers are, however, not permitted at the beginning of the file name).
If possible, special characters should not be used. The use of the slashes "\" and "/"
should be avoided since they are used in file paths. A number of names are reserved
for the operating system, e.g.
CLOCK$
,
CON
,
AUX
,
COM1...COM4
,
LPT1...LPT3
,
NUL
and
PRN
.
In the R&S
SMB all files in which lists and settings are stored are given a characteristic
extension. The extension is separated from the actual file name by a dot (see
ter 4.7.2.1, "Extensions for User Files"
on page 85 for an overview of the file types).
The two characters "*" and "?" function as "wildcards", meaning they are used for
selecting several files. The "?" character represents exactly one character, while the "*"
character represents all characters up to the end of the file name. "*.*" therefore stands
for all files in a directory.
When used in conjunction with the commands, the parameter
<file_name>
is speci-
fied as a string parameter with quotation marks. It can contain either the complete path
including the drive, only the path and the file name, or only the file name. The file name
must include the file extension. The same applies for the parameters
<directory_name>
and
<path>
.
Depending on how much information is provided, either the values specified in the
parameter or the values specified with the command
MMEM:CDIR
(default directory)
are used for the path and the drive settings in the commands.
Before the instrument settings can be stored in a file, they have to be stored in an inter-
mediate memory using common command
*SAV <number>
. The specified number is
subsequently to loading a file with instrument settings with command
on page 309, these settings have to be activated with the common com-
mand
*RCL <number>
.
7.10.2 Extensions for User Files
The following table lists all available file extensions for user files. The currently availa-
ble files on the instrument depend on the installed options.
MMEMory Subsystem