Keysight Technologies E4981A, Руководство по программированию

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162 Chapter 10
Command Reference
Notational conventions in this command reference
Notational conventions in this command reference
This section describes the rules to read the description of the commands in this chapter.
Syntax
A part with the heading “Syntax” describes the syntax to send a command from the
external controller to the E4981A. A syntax consists of a command part and a parameter
part. A space is used to separate the command part and the parameter part.
If there are several parameters, a comma is used instead as the separator between adjacent
parameters. Three periods (…) between commas indicate that parameters in that part are
omitted. For example, <numeric 1>,…, <numeric 4> indicates that four
parameters,<numeric 1>, <numeric 2>, <numeric 3>, and <numeric 4>, are required.
String-type parameters, <string>, <string 1>, and so on, must be enclosed in double
quotation marks (“). Furthermore, <block> indicates block-format data.
You can omit the lowercase letters in syntax. For example,
“:CALibration:CABLe[:LENGth] ” can be shortened to “CAL:CABL.”
The definitions of symbols used in the syntax are as follows.
<>
Characters enclosed in this pair of symbols are necessary parameters
when sending a command.
[] A part enclosed in these parentheses can be omitted.
{} A part enclosed in these parentheses indicates that you must select one
of the items in this part. Individual items are separated by a vertical bar
(|).
For example, “:APER SHOR”, “:SENS:FIMP:APER:MODE LONG,” and so on are valid
for the syntax given below.
Syntax [:SENSe][:FIMPedance]:APERture[:MODE] {SHORt|MEDium|LONG}
Description
A part with the heading “Description” describes how to use the command or the operation
when executed.