R&S SMJ100A, Operating Manual

Page: 559 / 874

Remote Control Commands
R&S
®
SMJ100A
543 Operating Manual 1403.7458.32 ─ 14
7.13 MMEMory Subsystem
The MMEMory subsystem ( M ass Mem ory) 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, for example using the UNC for-
mat (Universal Naming Convention):
\\server\share
.
The default drive is determined using the command
MMEMory:MSIS <msus>
.
The
C:
drive is a protected system drive. This drive should not be accessed. Recon-
struction of the system partition will not be possible without loss of data.
Use the command
:SYSTem:MMEMory:PATH:USER?
to query the path of the direc-
tory for user-defined data.
7.13.1 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 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).
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 SMJ 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 Chap-
ter 4.7.2.1, "Extensions for User Files" , on page 118 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>
.
MMEMory Subsystem