Conventions; Calculate[1|2|3|4]:Limit:upper:trace[:Immediate]Command - Agilent Technologies 35670A Manual

Dynamic signal analyzer gpib programming
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Command Syntax in the Agilent 35670A

Conventions

Syntax and return format descriptions use the following conventions:
< > Angle brackets enclose the names of items that need further definition. The definition will be
included in accompanying text. In addition, detailed descriptions of these elements appear at the end
of this chapter.
::= "is defined as" When two items are separated by this symbol, the second item replaces the first in
any statement that contains the first item. For example, A::=B indicates that B replace A in any
statement that contains A.
| "or" When items in a list are separated by this symbol, one and only one of the items can be chosen
from the list. For example, A|B indicates that A or B can be chosen, but not both.
... An ellipsis (trailing dots) is used to indicate that the preceding element may be repeated one or
more times.
[ ] Square brackets indicate that the enclosed items are optional.
{ } Braces are used to group items into a single syntactic element. They are most often used to
enclose lists and to enclose elements that are followed by an ellipsis.
Although the analyzer is not case sensitive, the case of letters in the command keyword is significant in
the Command Reference. Keywords that are longer than four characters can have a short form or a long
form. The analyzer accepts either form. Upper-case letters show the short form of a command keyword.
For more information, see "Programming with GPIB Commands" in the GPIB Programmer's Guide.
The analyzer is sensitive to white space characters. White space characters are not allowed within
command keywords. They are only allowed when they are used to separate a command and a parameter.
A message terminator is required at the end of a program message or a response message. Use <NL>,
<^END>, or <NL> <^<END> as the program message terminator. The word <NL> is an ASCII new line
(line feed) character. The word <^END> means that End or Identify (EOI) is asserted on the GPIB
interface at the same time the preceding data byte is sent. Most programming languages send these
terminators automatically. For example, if you use the BASIC OUTPUT statement, <NL> is
automatically sent after your last data byte. If you are using a PC, you can usually configure your system
to send whatever terminator you specify.
For more information about terminating messages, see "Programming with GPIB Commands" in the
GPIB Programmer's Guide.
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