Model 2657A High Power System SourceMeter® Instrument Reference Manual
Section 7: TSP command reference
2657A-901-01 Rev. B/December 2012
7-135
Details
This attribute stores a string that contains a description of the instrument. This value appears on instrument's LXI
welcome page. The value of this attribute is also used as the instrument's mDNS service name.
This attribute's factory default value is "Keithley Instruments SMU <model number> - <serial number>", where
<model number> and <serial number> are replaced with the actual model number and serial number of the
instrument (for example, "Keithley Instruments SMU 2657A - 1349810"). Setting this attribute to an empty string
(in other words, setting this attribute to a string of length zero, or one consisting entirely of whitespace
characters) will revert the description to the factory default value.
When using this command from a remote node,
localnode
should be replaced with the node reference, for
example
node[5].description
.
Example
description = "System in Lab 05"
localnode.description = description
Set
description
equal to "System in Lab 05".
Also see
None
localnode.linefreq
This attribute contains the power line frequency setting used for NPLC calculations.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Attribute (RW)
Yes
Not applicable
Nonvolatile memory
Country-specific (50 Hz or 60 Hz)
Usage
frequency
= localnode.linefreq
localnode.linefreq =
frequency
frequency
An integer representing the specified power line frequency
Details
To achieve optimum noise rejection when performing measurements at integer NPLC apertures, set the line
frequency attribute to match the frequency (50 Hz or 60 Hz) of the AC power line.
When using this command from a remote node,
localnode
should be replaced with the node reference. For
example,
node[5].linefreq
.
Example 1
frequency = localnode.linefreq
Reads line frequency setting.
Example 2
localnode.linefreq = 60
Sets the line frequency to 60 Hz.
Also see
None
Summary of Contents for 2657A
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