a semicolon. You must always end a program message with one
of the three program message terminators shown in Figure l-29.
Use <new line>,
C-END>,
or <new line>
<*END>
as the program
message terminator. The word
<-END>>
means that EOI is asserted
on the HP-IB interface at the same time the preceding data byte
is sent. Most programming languages send these terminators
automatically. For example, if you use the HP BASIC OUTPUT
statement, <new line> is automatically sent after your last data
byte. If you are using a PC, you can usually configure the system to
send whatever terminator you specify.
Subsystem Command Syntax
Figure l-30 describes the basic syntax of SCPI subsystem commands.
\
A
b
NOlE
SP
=
white
space,
ASCII
characters
0 ,,,
to
9
,.
and
11
,.
to
32
,.
Figure l-30. Simplified Subsystem Command Syntax
As Figure l-30 shows, there must be a <space> between the
last command mnemonic and the first parameter in a subsystem
command. This is one of the few places in SCPI where <space>
is required. Note that if you send more than one parameter with
a single command, you must separate adjacent parameters with a
comma. Parameter types are explained later in this subsection.
Common Command Syntax
Figure 1-31 describes the syntax of common commands.
Getting Started Programming
1-8 1
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