Table of Contents
Advertisement
Command
Separator
Abbreviated and
Short Commands
Implied
Commands
Parameters
40
HP E1328A Command Reference
A colon (:) always separates one command from the next lower-level command as
shown below:
DISPlay:MONitor[:STATe] <
The command syntax shows most commands as a mix of upper and lower case
letters. The upper case letters indicate the abbreviated spelling for the command.
For shorter program lines, send only the abbreviated form. For better program
readability, you may send the entire command. The instrument accepts either the
abbreviated form or the entire command.
For example, if the command reference syntax shows the command
and
are both acceptable forms. Other forms of
SOUR
SOURce
, will generate an error. You may use upper case and lower case letters;
SOURC
SOURCE
,
source
, and
SoUrCe
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 an excerpt
from the
subsystem shown below:
[SOURce:]
[SOURce:]
VOLTage
The root command
[SOURce:]
about a voltage level set on channel 1, send either of the following commands:
SOUR:VOLT1?
Parameters are enclosed in greater than/less than symbols (< >) in the command
syntax. When more than one parameter is allowed, the parameters are separated by
a vertical line ( | ).
Parameter Types. The following table contains explanations and examples of
parameter types you might see later in this chapter. Parameters must always be
separated from the keywords by a space.
Parameter Type
Numeric
Accepts all commonly used decimal representations of numbers
including optional signs, decimal points, and scientific notation.
123 or 123E2; -123 or -1.23E2; .123, 1.23E-2, or 1.23000E-01.
Special cases include MINimum, MAXimum, and DEFault.
Boolean
Represents a single binary condition that is either true or false.
1 or ON; 0 or OFF.
mode
>
are acceptable.
n
?
is an implied command. To query the instrument
or
VOLT1?
Explanations and Examples
, then
SOURce
, such as
SOURce
Chapter 5
Advertisement
Table of Contents
