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Command
Separator
Abbreviated
Commands
Implied
Commands
Note
58 Agilent E1330B Digital I/O Module Command Reference
A colon (:) always separates one command from the next lower level command. This
is illustrated as follows:
MEASure:DIGital:DATA
Colons separate the root command from the second level (
second from third level (
The command syntax shows most commands as a mixture of upper and lower case
letters. The upper case letters indicate the abbreviated spelling for the command. For
shorter program lines, send the abbreviated form. For better program readability, you
may send the entire command. The instrument will accept either the abbreviated
form or the entire command.
For example, if the command syntax shows
are both acceptable forms. Other forms of
will generate an error. You may use upper or lower case letters. Therefore,
MEASURE
,
measure
, and
Command keywords can be entered in their full form, as shown above, or can be
entered in their short form. In this manual, the entry required in short form
commands is always capitalized. The short form is generally used for examples in
this manual.
Implied commands are those which appear in square brackets ([ ]) in the command
syntax. (Note that the brackets are not part of the command and are not sent to the
instrument.) Suppose you send a second level command but do not send the
preceding implied command. In this case, the instrument assumes you intend to use
the implied command and it responds as if you had sent it. Examine this excerpt from
the
subsystem shown below:
[SOURce:]
[SOURce:]
DIGital
:DATA
n
[:VALue] <
m
parameter
:BIT
<
Both the root command
commands. To set the instrument to output a logical 1 to bit 0 of port 3, you may send
either:
SOURce:DIGital:DATA3:BIT0 1
You must include a space between the keywords and any parameters.
n
:VALue?
n), and so forth.
DIGital:DATA
MEASure
MEASure
MeAsUrE
are all acceptable.
parameter
>
>
, and forth level command
[SOURce:]
or
DIGital:DATA3:BIT0 1
MEASure:DIGital
) and the
, then
MEAS
and
MEASURE
, such as
or
MEASU
MEASUR
, are implied
[:VALue]
Chapter 5
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