Keithley 2651A Reference Manual

Model 2651A High Power System SourceMeter® Instrument Reference Manual Section 7: Command reference
2651A-901-01 Rev. A / March 2011 7-173
The min and max entries each have the following attributes:
Attribute Description
measurefunction
String indicating the function measured for the reading (current, voltage, ohms or
watts)
measurerange
The full-scale range value for the measure range used when the measurement was
made
reading
The reading value
sourcefunction
String indicating the source function at the time of the measurement (current or
voltage)
sourceoutputstate
String indicating the state of the source (off or on)
sourcerange
Full-scale range value for the source range used when the measurement was made
sourcevalue If bufferVar.collectsourcevalues is enabled, the sourced value in effect at
the time of the reading
status
Status value for the reading; the status value is a floating-point number that encodes
the status value into a floating-point value
timestamp If bufferVar.collecttimestamps is enabled, the timestamp, in seconds,
between when the reading was acquired and when the first reading in the buffer was
acquired; adding this value to the base timestamp will give the actual time the
measurement was acquired
Also see
smuX.buffer.recalculatestats() (on page 7-173)
smuX.buffer.recalculatestats()
This function recalculates the specified reading buffer's statistics.
Type TSP-Link accessible
Affected by Where saved Default value
Function Yes
Usage
smuX.buffer.recalculatestats(bufferVar)
X
Source-measure unit (SMU) channel (for example,
smua.buffer.recalculatestats() specifies SMU channel A).
bufferVar
The reading buffer to process.
Details
This function will cause the SMU to regenerate the reading buffer statistics on the specified reading buffer. As the
SMU automatically updates reading buffer statistics as data is added to the reading buffer, this function is
generally not needed. When the reading buffer is configured to wrap around and overwrite older data with new
data, the buffer statistics will include the data that was overwritten. Use this function to recalculate the statistics
including only the data that is currently stored in the buffer.
Also see
bufferVar.fillmode (on page 7-23)
smuX.buffer.getstats()
(on page 7-172)

Keithley 2651A Specifications

General

Brand	Keithley
Model	2651A
Category	Measuring Instruments
Language	English