Tektronix Keithley 2268 Series, Справочное руководство

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SCPI Command Reference Series 2268 850 Watt DC Power Supplies Reference Manual
218 2268S-901-01 Rev. A / January 2015
Using SCPI Commands
This Manual shows SCPI commands in the following format:
CALibration:CURRent:LEVel {<current>|MIN|MAX}
The command is expressed as a mixture of upper- and lowercase letters. The uppercase
letters suggest how the command can be abbreviated into a short form. SCPI commands can
be sent in long or short forms. The short form is better for data entry. The long form is better
for readability.
Command strings are not case sensitive:
CURR, Curr,
and
curr
are all acceptable
abbreviations for
CURRent
. As for the long form,
CURRENT
,
Current
, and
current
are all
acceptable. It is not possible to write for example,
CALibrat: CURR: LEV
because the extra
first node does not explicitly match the short or long form of the calibration node.
The command strings include punctuation. While some punctuation is sent with the string,
other markings are used to identify different elements of the command syntax and are not
sent with the string.
The following punctuation is sent with the command string:
•
Colons
(:) separate command keywords from lower-level keywords. For example,
CAL:CURR:STAT.
•
Blank spaces
separate command keywords from parameter values. For example,
CURR 0.1.
•
Commas
separate parameters from each other when more than one parameter is sent in
the same string. For example,
CAL:STAT OFF,”1234.”
•
Semicolons
(;) separate multiple commands from the same subsystem. This allows for
greater efficiency.
For example: CAL:CURR:LEV MIN;VOLT:LEV MIN
is the same as typing:
CAL:CURR:LEV MIN
CAL:VOLT:LEV MIN
•
Colons and semicolons
can be used together to link commands from different
subsystems. For example:
CAL:CURR:LEV MIN;:MEAS:CURR?
The short form is made up of 3 or 4 letters. There can only be an absolute short or long
form. For example, it is not possible to write CALibrat:CURR:LEV because the extra
the first node does not match explicitly the short or long form of the calibration node.