Command Syntax
3-2
VX4792 User Manual
Command and Query Structure
Commands are either set commands or query commands (usually just called
commands and queries in this manual). Most commands have both a set form
and query form. The query form of a command is the same as the set form,
except that the query form ends with a question mark.
Figure 3–1 shows a flowchart of the structure of the commands and queries. The
structure of the header is described in detail in Header on page 3–6.
Figure 3-1: Command and Query Structure Flowchart
Character Encoding
The program can be described using the American Standard Code for Informa-
tion Interchange (ASCII) character encoding.
This seven-bit ASCII code is used for the majority of syntactic elements and
semantic definitions. In special cases, an eight-bit ASCII Code is allowed in the
arbitrary block arguments described on page 3–6. The ASCII code character set
table is found in Appendix A.
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