The following elements have special meanings within a SCPI program
message (or combination or mnemonics).
colon (:)
When a command or query contains a series of
mnemonics, they are separated by colons. A colon
immediately following a mnemonic tells the command
parser that the program message is proceeding to the
next level of the command tree. A colon immediately
following a semicolon tells the command parser that
the program message is returning to the base of the
command tree.
semicolon (;)
When a program message contains more than one
command or query, a semicolon is used to separate
them from each other.
comma (,)
A comma separates the data sent with a command or
returned with a response.
space ( )
One space is required to separate a command or query
from its data (or parameters). Spaces are not allowed
inside a command or query.
Programmer's Guide
Introduction to SCPI
Syntax Summary
9-15