Keithley 2450 User Manual

Model 2450
Interactive SourceMeter® Instrument Reference Manual Section 8:
TSP command reference
2450-901-01 Rev. B/September 2013 8-9
buffer.delete()
This function deletes a user-defined reading buffer.
Type TSP-Link accessible
Affected by Where saved Default value
Function
Yes
Usage
buffer.delete(readingBufferVariable)
readingBufferVariable
The name of a user-defined reading buffer
Details
You cannot delete the default reading buffers, defbuffer1 and defbuffer2.
Example
buf400 = buffer.make(400)
smu.measure.read(buf400)
printbuffer(1, buf400.n, buf400.relativetimestamps)
buffer.delete(buf400)
Create a 400-element reading buffer named
buf400
.
Make measurements and store the readings in buf400.
Print the relative timestamps for each reading in the buffer.
Example output, assuming five readings are stored in the buffer:
0, 0.412850017, 0.821640085, 1.230558058, 1.629523236
Delete buf400.
Also see
buffer.make() (on page 8-11)
bufferVar.clear() (on page 8-17)
printbuffer() (on page 8-78)
Reading buffers (on page 3-10)
Remote buffer operation (on page 3-27)
buffer.getstats()
This function returns statistics from a specified reading buffer.
Type TSP-Link accessible
Affected by Where saved Default value
Function
Yes
Usage
buffer.getstats(bufferVar)
statsVar = buffer.getstats(bufferVar)
bufferVar
The name of the reading buffer, which may be a default buffer (defbuffer1 or
defbuffer2) or a user-defined buffer; if no buffer is specified, this parameter
defaults to
defbuffer1
statsVar
A table with the following entries: n, min, max, mean, and stddev; see Details for
information on the entries

Keithley 2450 Specifications

General

Model	2450
Category	SourceMeter
Voltage Source Range	±200 V
Current Source Range	±1 A
DC Voltage	200 V
DC Current	1 A
Power Output	20 W
Resolution	6.5 digits
Display	5-inch capacitive touchscreen
Operating Temperature	0°C to 50°C
Connectivity	USB, LAN, GPIB
Dimensions	213 mm × 88 mm × 370 mm