Keithley 6220 Reference Manual page 278

10-14 Remote Operations
Query commands
The query command requests the presently programmed status. It is identified by
the question mark (?) at the end of the fundamental form of the command. Most
commands have a query form.
:ARM:TIMer?
Most commands that require a numeric parameter (<n>) can also use the
DEFault, MINimum, and MAXimum parameters for the query form. These query
forms are used to determine the *RST default value and the upper and lower limits
for the fundamental command.
:ARM:TIMer? DEFault
:ARM:TIMer? MINimum
:ARM:TIMer? MAXimum
Case sensitivity
Common commands and SCPI commands are not case sensitive. You can use
upper or lower case and any case combination. Examples:
*RST
:SYSTem:PRESet
Long-form and short-form versions
A SCPI command word can be sent in its long-form or short-form version. The
command tables in this manual use the long-form version. However, the short-
form version is indicated by upper case characters.
:SYSTem:PRESet
:SYST:PRES
:SYSTem:PRES
Note that each command word must be in either long-form or short-form. For
example,
not be executed.
Short-form rules
Use the following rules to determine the short-form version of any SCPI com-
mand:
•
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Queries the timer interval
Queries the *RST default value
Queries the lowest allowable value
Queries the largest allowable value
=
*rst
=
:system:preset
long-form
short form
long-form and short-form combination
is illegal and will generate an error. The command will
:SYSTe:PRESe
If the length of the command word is four letters or less, no short form ver-
sion exists.
:auto = :auto
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Model 6220/6221 Reference Manual
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