Command Description R&S SMB
1407.0806.32 6.14 E-2
MMEMory Subsystem
The MMEMory subsystem (Mass Memory) contains the commands for managing files and directories
as well as for loading and storing complete instrument settings in files.
The files are stored on the CompactFlash™ Card of the instrument. The /var directory can be used to
save user-defined data; any subdirectory structure can be created on /var. Some default subdirectories
are predefined, but can be changed at any time.
The default directory is determined using the command MMEMory:CDIR.
Note:
The /opt directory is a protected and therefore unaccessable system director. 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.
To enable files in different file systems to be used, the following file naming conventions should be
observed:
The file name can be of any length and no distinction is made 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). Where possible,
special characters should not be used. Use of the slashes "\" and "/" should be avoided since they are
used in file paths. A number of names are reserved by the operating system, e.g. CLOCK$, CON, AUX,
COM1...COM4, LPT1...LPT3, NUL and PRN.
In the R&S Signal Generator 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 the following table
containing a list of the file types).
The two characters "*" and "?" function as "wildcards", i.e. 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 the files in a directory.
When used in conjunction with the commands, the parameter <file_name> is specified as a string
parameter with quotation marks. It can contain either the complete path or only the file name. 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 setting in the commands.
In the example below, the current instrument setting is always stored in the file 'test1.ss' in the
directory 'user' on the internal CompactFlash™ Card.
MMEM:STOR:STAT 0,"/var/rs_gen/test1.ss"
If the complete path is specified, the file is stored in the specified path.
MMEM:CDIR '/var/rs_gen'
MMEM:STOR:STAT 0,"test1.ss"
If the parameter only contains the file name, the file is stored in the default directory which
was selected with the MMEM:CDIR command.
List of file extensions assigned automatically in R&S Signal Generator
List type Contents File suffix
Instrument State Instrument settings
*.savrcl
User Correction User-defined level correction values
*.uco
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