Keysight U2741A, Programmer'S Reference Manual

Page: 15 / 169

Introduction to Programming 1
Keysight U2741A Programmer’s Reference Guide 15
SCPI Conventions and Data Formats
The following SCPI conventions are used throughout this guide.
Angle brackets
< > Items within angle brackets are parameter abbreviations. For example,
<range>
indicates a specific form of numerical data.
Vertical bar
| Vertical bars separate alternative parameters. For example,
VOLT|CURR
indicates that either
VOLT
or
CURR
can be used as a
parameter.
Square brackets
[ ] Items within square brackets are optional. The representation
[SOURce:]VOLTage
means that
SOURce:
may be omitted.
Parenthesis
( ) Items within parentheses are used in place of the usual parameter types to
specify a channel list. The notation
(@1:3)
specifies a channel list that
includes channels 1, 2, and 3. The notation
(@1,3)
specifies a channel list
that includes only channels 1 and 3.
Braces
{ } Braces indicate parameters that may be repeated zero or more times. It is
used especially for showing arrays. The notation
<A>{,<B>}
shows that
parameter
“
A
”
must be entered, while parameter
“
B
”
may be omitted, or
may be entered one or more times.