Series 2600B System SourceMeter® Instrument Reference Manual
Section 7: TSP command reference
2600BS-901-01 Rev. B / May 2013
7-139
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
60 (60 Hz)
Usage
frequency
= localnode.linefreq
localnode.linefreq =
frequency
frequency
An integer representing the instrument's detected or specified 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
.When this attribute is set, the
localnode.autolinefreq
attribute is
automatically set to
false
. You can have the instrument automatically detect the AC power line frequency and
set this attribute with the line frequency detected when the instrument power is turned on by setting the
localnode.autolinefreq
attribute to
true
.
Example 1
frequency = localnode.linefreq
Reads line frequency setting.
Example 2
localnode.linefreq = 60
Sets the line frequency to 60 Hz.
Also see
localnode.autolinefreq
(on page 7-137)
Summary of Contents for System SourceMeter 2601B
Page 841: ......
