R&S FSW Series, Руководство пользователя

Страница: 744 / 1450

Network and Remote Operation
R&S
®
FSW
744 User Manual 1173.9411.02 ─ 43
● Numeric Values ..................................................................................................... 744
● Special Numeric Values ........................................................................................ 744
● Boolean Parameters ............................................................................................. 745
● Text Parameters ....................................................................................................745
● Character Strings .................................................................................................. 745
● Block Data .............................................................................................................746
Numeric Values
Numeric values can be entered in any form, i.e. with sign, decimal point and exponent.
Values exceeding the resolution of the instrument are rounded up or down. The man-
tissa may comprise up to 255 characters, the exponent must lie inside the value range
-32000 to 32000. The exponent is introduced by an "E" or "e". Entry of the exponent
alone is not allowed.
Example:
SENS:FREQ:STOP 1500000
=
SENS:FREQ:STOP 1.5E6
Units
For physical quantities, the unit can be entered. If the unit is missing, the basic unit is
used. Allowed unit prefixes are:
●
G (giga)
●
MA (mega), MOHM, MHZ
●
K (kilo)
●
M (milli)
●
U (micro)
●
N (nano)
Example:
SENSe:FREQ:STOP 1.5GHz
=
SENSe:FREQ:STOP 1.5E9
Some settings allow relative values to be stated in percent. According to SCPI, this unit
is represented by the
PCT
string.
Example:
HCOP:PAGE:SCAL 90PCT
Special Numeric Values
The following mnemonics are special numeric values. In the response to a query, the
numeric value is provided.
●
MIN and MAX : denote the minimum and maximum value.
●
DEF : denotes a preset value which has been stored in the EPROM. This value
conforms to the default setting, as it is called by the *RST command.
●
UP and DOWN : increases or reduces the numeric value by one step. The step
width can be specified via an allocated step command for each parameter which
can be set via UP and DOWN.
Remote Control Basics