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Remote Control
R&S
®
CMW500
179
User Manual 1173.9463.02 ─ 02
Event
Switching on sup-
ply voltage
Power-On-Status-
Clear
DCL, SDC
(Device
Clear,
Selected
Device Clear)
*RST or
SYS-
Tem:PRE-
Set:ALL
STA-
Tus:PRE-
Set
*CLS
Clear ENABle parts of all
OPERation-and QUESTiona-
ble registers,
Fill ENABle parts of all other
registers with "1".
yes
yes
Fill PTRansition parts with "1"
Clear NTRansition parts
yes
yes
Clear error queue
yes
yes
yes
Clear output buffer
yes
yes
yes
1)
1)
1)
Clear command processing
and input buffer
yes
yes
yes
1) Every command being the first in a command line, i.e. immediately following a
<PROGRAM MESSAGE TERMINATOR>
clears the output buffer.
6.6.6 Regular Expressions
Some remote control commands (for examples see
STATus:OPERation (Overall Eval-
) support the application of filters. A filter allows to limit the results returned by the
command (or the objects affected by the command) to a specific set of strings. This set
can be defined via a regular expression without having to list all elements.
The most basic filter expression consists of a simple string containing no meta characters,
e.g. 'CDM'. Strings match to this filter if they contain the defined filter string. Matching
examples: 'CDMA2000', 'WCDMA', 'WCDMA network standard'.
More sophisticated filter expressions can be defined using the meta characters listed in
the following table. A string matches to a filter example given in the table if it contains any
of the given matching strings.
Meta Character
Meaning
.
Matches any single character.
[]
Matches a single character given within the brackets. Example: '[ABC]' matches 'A', 'B'
and 'C'.
[ - ] specifies a range. Example: '[ABCX-Z]' matches 'A', 'B', 'C', 'X', 'Y' and 'Z', as does
'[A-CX-Z]'.
[^ ]
Matches a single character not given within the brackets. Example: '[^ABC]' matches
any character other than 'A', 'B' and 'C'.
^
If given at the beginning of a filter, matches the beginning of the string. Example:
'^[ABC]' matches any string starting with 'A', 'B' or 'C'.
$
If given at the end of a filter, matches the end of the string. Example: '[ABC]$' matches
any string ending with 'A', 'B' or 'C'.
Status Reporting System