Specifications

202 Chapter 16
Command Reference
Syntax
Notational Conventions in this Command Reference
This section describes how to read the description of commands in this chapter.
Syntax
The section headed by “Syntax” describes the syntax to send a command from the external
controller to the 4287A.The syntax consists of a command part and a parameter part. The
separator between the command part and the parameter part is a space.
When there are several parameters, a comma (,) is used as the separator between adjacent
parameters. When the syntax contains an ellipsis between commas, it indicates the
omission of one or more parameters; for example, “<numeric 1>,..., <numeric 4>” means
that you should specify four parameters: <numeric 1>, <numeric 2>, <numeric 3>, and
<numeric 4>. A string type parameter, such as <string> or <string 1>, must be enclosed
with double quotes.
You can omit the lowercase characters of a keyword. For example, you can specify
:SYST:PRES instead of :SYSTem:PRESet.
The definition of symbols used in the syntax are as follows:
<> Characters enclosed by angular brackets are necessary parameters
when sending the command.
[] Parts enclosed by square brackets can be omitted.
{} Braces indicate that you must select one of the items in this part. Each
item is separated by a vertical bar (|).
Description
The section headed by “Description” describes how to use the command or the operation
when executed.
Parameters
The section headed by “Parameter” describes the necessary parameters when sending the
command. When a parameter is a value type enclosed with <>, information including
description, allowable setting range, and initial value is given; when a parameter is a
selection type enclosed with {}, information on each selection item is given.