Keithley 2600a series User Manual

2600AS-901-01 Rev. B / September 2008 Return to Section Topics 19-125
Series 2600A System SourceMeter® Instruments Reference Manual Section 19: Remote Commands
smuX.nvbufferY
X = SMU channel (a or b)
Y = NV buffer (1 or 2)
Attribute Dedicated reading buffers.
TSP-Link
accessibility
This attribute can be accessed from a remote TSP-Link node.
Usage buffer = smuX.nvbufferY
buffer The dedicated reading buffer.
Remarks • There are two reading buffers: smuX.nvbuffer1 and smuX.nvbuffer2.
• All routines that return measurements can return them in reading buffers. Overlapped
measurements are always returned in a reading buffer. Synchronous measurements return
either a single-point measurement or can be stored in a reading buffer if passed to the
measurement command.
• The dedicated reading buffers can be saved to internal nonvolatile memory to retain data
between power cycles.
Details See Reading buffers in this section and in Section 14.
Also see smuX.makebuffer, smuX.measure.overlappedY, smuX.measure.Y
Example Store current readings from SMU A into Buffer 1:
smua.measure.overlappedi(smua.nvbuffer1)
smuX.nvbufferY.appendmode
X = SMU channel (a or b)
Y = NV buffer (1 or 2)
Attribute Append mode for the reading buffer.
Default 0
TSP-Link
accessibility
This attribute can be accessed from a remote TSP-Link node.
Usage state = smuX.nvbufferY.appendmode -- Reads append mode.
smuX.nvbufferY.appendmode = state -- Writes append mode.
state The reading buffer append mode.
Set state to one of the following values:
0 Append mode off New measure data overwrites the previous buffer content.
1 Append mode on Appends new measure data to the present buffer content.
Remarks • Assigning to this attribute enables or disables the buffer append mode.
• With append mode on, the first new measurement will be stored at rb[n+1], where n is the
number of readings stored in the buffer.
Details See Reading buffers in this section and in Section 7.
Also see smuX.measure.overlappedY, smuX.measure.Y, smuX.nvbufferY
Example Append new readings for SMU A to contents of Buffer 1:
smua.nvbuffer1.appendmode = 1

Keithley 2600a series Specifications

General

Brand	Keithley
Model	2600a series
Category	Measuring Instruments
Language	English