Keithley SourceMeter 2600 Series Reference Manual page 276

12-2 Instrument Control Library
Command programming notes
Conventions
For the following command reference, it is necessary to understand the following
conventions:
Wild characters
Many SMU commands are expressed in a generic form using wild characters. A
wild character indicates an SMU channel, function or trigger line. Keep in mind
that wild characters used in the generic form are NOT to be included in the
command sent to the instrument.
and
X
The
X
( or
a
attribute for the source output setting is generically expressed as follows:
smuX.source.levelY
To program SMU channel A to 5 volts, the following command statement is to be
sent to the instrument:
smua.source.levelv = 5.0
To program SMU channel B to 1 milliampere, the following command statement is
to be sent to the instrument:
smub.source.leveli = 0.001
The wild characters
in this command reference for notational convenience only.
[N]
The N character, enclosed by brackets ([ ]), is used in functions and attributes for
the Digital I/O line (
generically expressed as follows:
digio.trigger[N].assert
To program the Series 2600 to assert an output trigger on trigger line 5, the
following command statement is sent to the instrument.
digio.trigger[5].assert()
The wild character N should NOT to be sent to the instrument. However, the
brackets (
command requires that a set of open and closed parenthesis (
the function (see "Functions" in following subsection).
2600S-901-01 Rev. A / May 2006
Y
character is used for functions and attributes to indicate the SMU channel
) and is used to indicate the SMU function (
b Y
and/or
X
to ). For example, the function to assert an output trigger is
1 14
) must be included in the command. Also, note that the above
[ ]
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Series 2600 System SourceMeters Reference Manual
are NEVER sent to the instrument. They are used
Y
Section 12 topics
or ). For example, the
, ,
v i r p
) be appended to
()