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Syntactic Delimiters
White Space
Special Characters
VX4792 User Manual
Syntactic elements in a program message unit are delimited (differentiated) with
colons, white space, commas, or semicolons.
H Colon (:). Typically delimits the compound command header.
EQUATION:COMPILE:ABORT
H White Space. Typically delimits command/query headers from the
argument.
DIAG:SELECT ALL
MODE BURST,4000
DIAG:SELECT and MODE are the command headers, and ALL and BURST,4000
are the arguments.
H Comma (,). Typically delimits between multiple arguments. In the above
example, a comma delimits the multiple arguments BURST and 4000.
H Semicolon (;). Typically delimits between multiple commands (or multiple
program message units). For more information about using the semicolon,
refer to Concatenating Commands on page 3–8.
White space, which is used to delimit certain syntactic elements in a command,
is defined in the VX4792 Arbitrary Waveform Generator as a single ASCII-en-
coded byte in the range ASCII 0-32 (decimal). This range consists of the
standard ASCII characters exclusively except for ASCII 10, which is the Line
Feed (LF) or New Line (NL) character.
The Line Feed (LF) character or the New Line (NL) character (ASCII 10) and all
characters in the range of ASCII 127-255 are defined as special characters. These
characters are used in arbitrary block arguments only; using these characters in
other parts of any command yields unpredictable results.
Command Syntax
3-3
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