Figure 2-1: Command And Query Structure Flowchart - Tektronix DG2020A Programmer's Manual

Command Syntax
Command and Query Structure
Character Encoding
2 2
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 2-1 shows a flowchart of the structure of the commands and queries. The
structure of the header is described in detail in Header on page 2-6.
Header
Mnemonic
:
Figure 2 1: Command and query structure flowchart
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 2-5. The ASCII code character set
table is found in Appendix A.
,
Argument
,
? Argument
:
Header
?
Mnemonic
,
Argument
,
Argument
DG2020A Programmer Manual
Command
Command
Query
Query
Query
Command
Command