Remote Operation
5.3.5 Basic Definition
5.3.5.1 Command Tree Structure
The commands of the DC Power Supply are based on a hierarchical structure, also known as
a tree system. In order to create a particular command, the full path to that command must
be specified. This path is represented in the structure by placing the highest node in the
farthest left position of the hierarchy. Lower nodes in the hierarchy are indented in a position
to the right, below the parent node.
5.3.5.2 Program Headers
Program headers are key words that identify the command. They follow the syntax
described in subsection 5.6 of IEEE 488.2. The DC Power Supply accepts characters in
both upper and lower case without distinguishing the difference. Program headers consist of
two distinctive types, common command headers and instrument-controlled headers.
5.3.5.3 Common Command and Query Headers
The syntax of common command and query headers is described in IEEE 488.2. It is used
together with the IEEE 488.2-defined common commands and queries. The commands with
a leading “ * ” are common.
5.3.5.4 Instrument-Controlled Headers
Instrument-controlled headers are used for all other instrument commands. Each of them
has a long form and a short form. The 62000H Series only accepts the exact short and long
forms. A special notation will be used to differentiate the short form header from the long
one of the same header in this subsection. The short form header is shown in upper case
characters, whereas the rest of the headers are shown in lower case.
5.3.5.5 Program Header Separator (:)
If a command has more than one header, separate them with a colon (FETC:CURR
FUNC:SHAP). Data must be separated from the program header by at least one space
(SOUR:CURR 5).
5.3.5.6 Program Message
A program message consists of a sequence of one or more program message units that are
separated by separator elements.
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