Keithley 2657A User Manual

Model 2657A High Power System SourceMeter® Instrument Reference Manual Section 7: TSP command reference
2657A-901-01 Rev. B/December 2012 7-31
Usage
statusInformation = bufferVar.statuses[N]
statusInformation
The status value when reading N of the specified buffer was acquired
bufferVar
The reading buffer; can be a dynamically allocated user-defined buffer or a
dedicated reading buffer
N
The reading number (1 to bufferVar.n)
Details
This read-only buffer recall attribute is like an array (a Lua table) of the status values for all the readings in the
buffer. The status values are floating-point numbers that encode the status value; see the following table for
values.
For dedicated reading buffers, all buffer attributes are saved to nonvolatile memory only when the reading buffer
is saved to nonvolatile memory.
Buffer status bits
Bit Name Hex value Description
B0 FastADC 0x01 Fast ADC was used to make the reading
B1 Overtemp 0x02 Over temperature condition
B2 AutoRangeMeas 0x04 Measure range was autoranged
B3 AutoRangeSrc 0x08 Source range was autoranged
B4 4Wire 0x10 4-wire (remote) sense mode enabled
B5 Rel 0x20 Relative offset applied to reading
B6 Compliance 0x40
Source function was limited because the complementary
function would be over the compliance limit
B7 Filtered 0x80 Reading was filtered
Also see
bufferVar.measurefunctions (on page 7-23)
bufferVar.measureranges
(on page 7-24)
bufferVar.n
(on page 7-25)
bufferVar.readings
(on page 7-26)
bufferVar.sourcefunctions
(on page 7-27)
bufferVar.sourceranges
(on page 7-28)
bufferVar.timestamps
(on page 7-32)
Reading buffers
(on page 3-6)
bufferVar.timestampresolution
This attribute contains the timestamp's resolution.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW) Yes Not applicable See Details
1e-6 (1 μs)
Usage
resolution = bufferVar.timestampresolution
resolution
Timestamp resolution in seconds
bufferVar
The reading buffer; can be a dynamically allocated user-defined buffer or a
dedicated reading buffer

Keithley 2657A Specifications

General

Brand	Keithley
Model	2657A
Category	Measuring Instruments
Language	English