Introduction to Programming
1
Keysight U2722A/U2723A Programmer’s Reference
13
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,
<NR1>
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
consists of 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.
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