Mass Memory Subsystem - R&S AFQ100A Operating Manual

R&S AFQ100A

Mass Memory 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 various drives can be selected using the "mass storage unit specifier " <msus>. The internal hard
disk is selected with "D:\", and a memory stick which is inserted at the USB interface is selected with
"E:\". The resources of a network can also be selected with <msus> in the syntax of the respective
network, e.g. using the UNC format (Universal Naming Convention): '\\server\share'.
The default drive is determined using the command MMEMory:MSIS <msus>.
Note:
The C: drive is a protected system drive. This drive should not be accessed. Reconstruction of the
system partition will not be possible without loss of data.
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 instrument 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 including the drive, only the
path and 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 commands
MMEM:MSIS (default drive) and MMEM:CDIR (default directory) are used for the path and drive setting in
the commands.
Before the instrument settings can be stored in a file, they have to be stored in an intermediate memory
using common command *SAV <number>. The specified number is subsequently used in the
MMEM.STOR:STATe<number>, <file> command.
Also, subsequently to loading a file with instrument settings with the command MMEM:LOAD:STAT
<number>, <file>, these settings have to be activated with the common command *RCL
<number>.
1401.3084.32
AFQ Commands - Setup Section
6.77 E-3