Racal Instruments 3162A/B, Руководство пользователя

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User Manual 3162A/B
SCPI Command Reference 4-2
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 {70MHz | 150MHz}
[: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, use 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.
Some parameters are enclosed in square brackets ([]). The brackets indicate
that the parameter is optional and can be omitted. The brackets are not sent
with the command string. If an optional parameter is not specified, the
generator uses a default value.
Command Separator
A colon ( : ) is used to separate a command keyword from a lower level
keyword as shown below:
SOUR:FUNC:SHAP SIN
A semicolon ( ; ) is used to separate commands within the same subsystem,
and can also minimize typing. For example, sending the following command
string: