What is Standard Commands for Programmable Instruments (SCPI)?
Answer:- Standard Commands for Programmable Instruments (SCPI)
Answer:- Standard Commands for Programmable Instruments (SCPI)
•SCPI stands for Standard Commands for Programmable Instruments it is often pronounced
as Skippy.
•SCPI
is a instrument language that control the functions of instrument in
standardized form define by IEEE
488.2.
•It is
the standardized command between computer and instrument.
•IEEE
488.2 defines
how to send command to instrument and how to respond to computer.
•Two
similar instrument compatible with IEEE 488.2 each using completely different instruction.
•SCPI
organized in three sections one is syntax and style second is command reference third is data interchange format.
Lets discuss about each block
•Measurement
function :
transforms signal into preprocessed form.
•Signal
routing : connects the signal to internal
function of instrument.
•Input
: filtering, bias and attenuation and condition the input
signal.
•Sense
: control range, resolution and convert signal data into internal
data that
can be managed by user.
•Calculate
: calculation function uses
variables such as converting units and rise
time, fall time and frequency.
•Format : transform instrument data to
compatible form.
•Signal
generation :
converts internal data.
•Signal
routing : it
is connected to output which connects to outside world.
•Output
: filtering, bias and attenuation and condition the signal after signal
generation.
•Source
: amplitude modulation, power,
current, voltage and frequency from these
parameter and internal data it
generates signals.
•Calculate
: calculate data and convert
application data and change units and
domains.
•Format : transform data to form compatible
with internal function of instrument.
•Trigger
: it is for triggering.
•Memory
: memory is for storing data in instrument.
