Command Formats
The BP-IB commands accepted by the analyzer can be grouped into Eve
input-syntax types. The analyzer does not distinguish between upper-
and lower-case letters.
General Structure:
The general syntax structure is:
[code] [appendage][data] [unit] [terminator]
The individual sections of the syntax code are explained below.
[code]
The root mnemonic (these codes are described in
the “Alphabetical Mnemonic Listing” later in this
document.)
A
qualifier
attached to the root mnemonic. Possible
appendages are ON or OFF (toggle a function ON or
OFF), or integers, which specify one capability out of
several. There can be no spaces or symbols between
the code and the appendage.
[data]
[unit]
A single operand used by the root mnemonic, usually
to set the value of a function. The data can be a
number or a character string. Numbers are accepted
as integers or decimals, with power of ten speciEed
by E (for example,
STHR
8.2E+
18;
sets the start
frequency to 2
GIIz).
Character strings must be
enclosed by double quotation marks.
For example:
A title string using RMB BASIC would look like:
OI_ITPI_IT
71&; “TITL”““IJ~I~~.
1”““;
”
where the Erst two
”
”
are an escape so that RMB
BASIC will interpret the third
”
properly.
The units of the operand, if applicable. If no units
are specified, the analyzer assumes the basic units
as described previously. The data is entered into
the function when either units or a terminator are
received.
[terminator]
Indicates the end of the command, enters the data,
and switches the active-entry area OFF. A semicolon
(;) is the recommended terminator.
Terminators are not necessary for the analyzer to
interpret commands correctly, but in the case of a
syntax error, the analyzer will attempt to recover at
l-10
HP-IB
Progmunu
‘ng and Command Reference Guide
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