Headers - Keysight Technologies 6811C Programming Manual

2 Introduction to Programming
Message unit separator
Root specifier
Query indicator
Message terminator

Headers

Headers are instructions recognized by the ac source. Headers (which are
sometimes known as "keywords") may be either in the long form or the short form.
Long form
Short form The header has only the first three or four letters, such as VOLT, STAT, and DEL.
The SCPI interface is not sensitive to case. It will recognize any case mixture, such
as TRIGGER, Trigger, TRIGger.
Short form headers result in faster program execution.
NOTE
Header
convention
Header
separator
Optional
headers
44
The semicolons in VOLT:LEV 80; and PROT 88;
The colon in PROT 88;:CURR?
The question mark in CURR?
The <NL> (newline) indicator. Terminators are not part of the SCPI syntax.
The header is completely spelled out, such as VOLTAGE, STATUS, and DELAY.
In the command descriptions in
are emphasized with boldface type. The proper short form is shown in upper-case letters,
such as DELay.
If a command has more than one header, you must separate them with a colon (VOLT:PROT
OUTPut:RELay:POLarity).
The use of some headers is optional. Optional headers are shown in brackets, such as
OUTPut[:STATe] ON. As previously explained under
page 39, if you combine two or more message units into a compound message, you may
need to enter the optional header.
Keysight Models 6811C, 6812C, and 6813C Programming Guide
Chapter 3, "Language Dictionary"
"The effect of optional headers"
of this guide, headers
on