Racal Instruments 3152A, Руководство пользователя

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3152A User Manual
SCPI and HS Command Reference 4-2 Racal Instruments
©
2001
Braces ( { } ) Enclose parameters within a
command string
Triangle Brackets ( < > ) Substitute a value for the enclosed
parameter
Vertical Bar ( | ) Separate multiple parameter
choices
Bold Typeface Letters Designate factory default values
Part of the OUTPut subsystem is shown below to illustrate the
tree system:
OUTPut
:FILTer
[:LPASs]
:FREQuency {20MHz|25MHz|50MHz}
[:STATe] OFF|ON
[:STATe] OFF|ON
OUTPut is the root keyword of the command; FILTer and STATe
are second level keywords. FREQuency and STATe are third
level keywords. A colon ( : ) separates a command keyword from
a lower level keyword.
Command Format
The format used to show commands in this manual is shown
below:
FREQuency {<frequency>|MINimum|MAXimum}
The command syntax shows most commands (and some
parameters) as a mixture of upper and lowercase letters. The
uppercase letters indicate the abbreviated spelling for the
command. For shorter program lines, send the abbreviated form.
For better program readability, send the long form.
For example, in the above syntax statement, FREQ and
FREQUENCY are both acceptable forms. Use upper or
lowercase letters. Therefore, FREQ, FREQUENCY, freq, and
Freq are all acceptable. Other forms such as FRE and
FREQUEN will generate an error.
The above syntax statement shows the frequency parameter
enclosed in triangular brackets. The brackets are not sent with
the command string. A value for the frequency parameter (such
as "FREQ 50e+6”) must be specified.