HP 8153A - Page 107

The command table always starts with a root component. Other components
that are indented to the right can be added to the current path to complete a
command, or to make a new command.
Example We will use the SDURce Command for our examplevS. The
comamnd table for SOURcs is as follows
SOURc© Command Summary
_ Command _ Parameter
SQURc6[i|21
:AM
[iINTernal]
:FREQuency <valiie>[<imit>]|CW
:FREQuency?
:P0Wer
:ATTenuation[l|2] <value>[<unit>]
: ATTenuation[l|2]?
:STATe <boolean>
:STATe?
:WAVElength UPPerjLOWer|BOTH
:WAVElength?
An example of a command from this table is
SOURCE:POWER:STATE.
In addition to the components, some commands also need data. A piece of data
is called a parameter.
Seperate a command and its parameters by whitespace characters (spaces or
tabs). Use a comma (,) to seperate parameters when a command needs more
than one of them.
Example An example of a command with a parameter is
SOURCE:AM:IMTERNAL:FREQUENCY GW.
Put a colon (:) before any component to indicate a move to the next level of
the combination. Put a semi-colon (;) before a component to indicate another
command at the same level of the combination.
Eocample An example of using colons and semicolons to save typing is
SOUR:P0W: ATT 1.0; STAT OK; WAVE LOW
This is the same as
SOURCE:POWER:ATTENUATION 1.0
Remote Operation 5-7