Chapter 1 Scpi Command Overview; Syntax; Symbol Description - Rigol DS7034 User Programming Manual

Chapter 1 SCPI Command Overview

Chapter 1 SCPI Command Overview
SCPI (Standard Commands for Programmable Instruments) is a standardized instrument programming
language that is built upon the existing standard IEEE 488.1 and IEEE 488.2 and conforms to various
standards, such as the floating point operation rule in IEEE 754 standard, ISO 646 7-bit coded character set
for information interchange (equivalent to ASCII programming). The SCPI commands provide a hierarchical
tree structure, and consist of multiple subsystems. Each command subsystem consists of one root keyword
and one or more sub-keywords.
Contents in this chapter:

Syntax



Symbol Description


Parameter Type

Command Abbreviation

Syntax
The command line usually starts with a colon; the keywords are separated by colons, and following the
keywords are the parameter settings available. The command ending with a quotation mark indicates
querying a certain function. The keywords of the command and the first parameter is separated by a space.
For example,
:ACQuire:TYPE <type>
:ACQuire:TYPE?
ACQuire is the root keyword of the command, and TYPE is the second-level keyword. The command line
starts with a colon, and different levels of keywords are also separated by colons. <type> indicates a
settable parameter. The command ending with a quotation mark indicates querying a certain function. The
command keywords ":ACQuire:TYPE" and the parameter <type> are separated by a space.
In some commands with parameters, "," is often used to separate multiple parameters. For example,
:SYSTem:DATE <year>,<month>,<day>.
Symbol Description
The following symbols are not sent with the commands.
1. Braces { }
The contents enclosed in the braces are parameter options, Parameters are usually separated by the
vertical bar "|". When using the command, you must select one of the parameters.
2. Vertical Bar |
The vertical bar is used to separate multiple parameters. When using the command, you must select
one of the parameters.
3. Square Brackets [ ]
The contents in the square brackets can be omitted.
4. Angle Brackets < >
The parameter enclosed in the angle brackets must be replaced by an effective value.
MSO7000/DS7000 Programming Guide
RIGOL
1-1