Sefram
CHAPITRE 5. ADVANCED FEATURES
F
IGURE
5.9 : VNC viewer® control
5.4
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SCPI protocol
SCPI (Standard Commands for Programmable Instruments) is a universal programming language for electronic
test and measurement instruments, based on the IEEE 488.1 and IEEE 488.2 standards. Commands are ASCII
textual strings which are sent to the instrument over the physical layer. Commands are a series of one or more
keywords, many of which take parameters.
5.5
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Physical layer
SCIPI is based over the LAN interface that can be connected via a commercial RJ-45 cable to a network with
TCP/IP protocol. The TCP port used is
23
(Telnet port).
5.6
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Command syntax
SCPI commands to an instrument may either perform:
• command operation (e.g. switching a power supply on)
• query operation (e.g. reading a voltage). Queries are issued to an instrument by appending a question-mark
to the end of a command.
Use a semicolon ( ; ) to separate multiple commands.
DAS
User manual
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