Rohde & Schwarz R&S SMW200A - File Naming Conventions; Mmemory Subsystem

Remote Control Commands
R&S
®
SMW200A
851User Manual 1175.6632.02 ─ 30
14.7 MMEMory Subsystem
The MMEMory subsystem (Mass MEMory) contains the commands for managing files
and directories as well as for loading and saving complete instrument settings in files.
Mass storage location
Without any additional measures, the R&S SMW stores user files on the internal mem-
ory or if connected, on a memory stick.
Both, the user directory /var/user/ on the internal memory or the /usb/ directory
on the memory stick, can be used to preserve user-defined data. Any directory struc-
ture can be created.
The /var/volatile directory serves as a RAM drive and can be used to protect
sensitive information. The data is available temporarily.
Default storage location
The R&S SMW stores user data in the user directory.
In the file system, user directory is always indicated as /var/user/.
In manual control, you access this directory via the "File Manager", see Chapter 11.8,
"Using the File Manager", on page 690. In remote control, you can query it with the
command :SYSTem:MMEMory:PATH:USER?.
To query and change the default directory used for mass storage, use the command :
MMEMory:CDIRectory.
14.7.1 File Naming Conventions
To enable files to be used in different file systems, consider the following file naming
conventions:
●
The filename can be of any length and is case-sensitive, i.e it is distinguished
between uppercase and lowercase letters.
●
All letters and numbers are permitted (numbers are, however, not permitted at the
beginning of the filename).
●
Avoid using special characters.
●
Do not use slashes "\" and "/". These symbols are used in file paths.
●
Avoid using the following filenames: CLOCK$, CON, COM1 to COM4,
LPT1 to LPT3, NUL or PRN
They are reserved by the operating system.
File extension
The file and the optional file extension are separated by a period sign. The R&S SMW
distinguishes the files according to their extensions; each type of file is assigned a spe-
cific file content and hence a specific file extension. Refer to Chapter D.3, "Extensions
for User Files", on page 1340 for an overview of the supported file extensions.
MMEMory Subsystem