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A1
A
A1.3
SCPI COMMANDS
A1.3.1 Introduction
SCPI (Standard Commands for Programmable Instruments) builds on
the programming syntax of 488.2 to give the programmer the capability
handling a wide variety of instrument functions in a common manner.
This gives all instruments a common "look and feel".
SCPI commands use common command words defined in the SCPI
specification. Control of any instrument capability that is described
in SCPI shall be implemented exactly as specified. Guidelines are
included for adding new defined commands in the future as new
instruments are introduced without causing programming problems.
SCPI is designed to be laid on top of the hardware - independent
portion of the IEEE 488.2 and operates with any language or graphic
instrument program generators. The obvious benefits of SCPI for the
ATE programmer is in reducing the learning time on how to program
multiple SCPI instruments since they all use a common command
language and syntax.
A second benefit of SCPI is that its English like structure and words
are self documenting, eliminating the needs for comments explaining
cryptic instrument commands. A third benefit is the reduction in
programming effort to replace one manufacturer's instrument with
one from another manufacturer, where both instruments have the
same capabilities.
This consistent programming environment is achieved by the use of
defined program messages, instrument responses and data formats for
all SCPI devices, regardless of the manufacturer.
