User Manual Manual

AFG-2225 Series User Manual
184
Command Syntax
Compatible
standard
 IEEE488.2, 1992 (fully compatible)
 SCPI, 1994 (partially compatible)
Command Tree
The SCPI standard is an ASCII based standard that
defines the command syntax and structure for
programmable instruments.
Commands are based on a hierarchical tree
structure. Each command keyword is a node on
the command tree with the first keyword as the
root node. Each sub node is separated with a
colon.
Shown below is a section of the SOURce[1|2] root
node and the :PM and :PULSe sub nodes.
:PM
:PULSe
:SOURce[1|2]
:WIDTh :PERiod
ShapeSOURCE
Root node
2
nd
node
3
rd
node
Command types
Commands can be separated in to three distinc
types, simple commands, compound commands
and queries.
Simple
A single command with/without
a parameter
Example
*OPC
Compound
Two or more commands
separated by a colon (:)
with/without a parameter
Example
SOURce1:PULSe:WIDTh