Keithley 2651A Reference Manual

Model 2651A High Power System SourceMeter® Instrument Reference Manual Section 3: Functions and features
2651A-901-01 Rev. A / March 2011 3-11
Reading buffer commands
The following table summarizes commands associated with the reading buffers. See Remote
commands (on page 5-1) for detailed reading buffer command information.
Reading buffer commands
Command Description
Commands save/clear readings:
smuX.savebuffer(smuX.nvbufferY)
Saves the reading buffer to the Model 2651A.
smuX.nvbuffer1.clear()
Clears buffer 1.
smuX.nvbuffer2.clear()
Clears buffer 2.
mybuffer = smuX.makebuffer(n) Creates a dynamically allocated buffer for n readings.
mybuffer = nil
Deletes the dynamically allocated buffer.
savebuffer(smuX.nvbuffer1,"csv",
"/usb1/mybuffer.csv")
Saves the reading buffer to the USB flash drive.
Commands to store readings:
smuX.measure.count = count
The number of measurements to acquire.
smuX.measure.overlappedi(rbuffer)
Stores the current readings in buffer.
smuX.measure.overlappediv(ibuffer,
vbuffer)
Stores the current and voltage readings in respective buffers
(current and voltage are stored in separate buffers).
smuX.measure.overlappedp(rbuffer)
Stores the power readings in buffer.
smuX.measure.overlappedr(rbuffer)
Stores the resistance readings in buffer.
smuX.measure.overlappedv(rbuffer)
Stores the voltage readings in buffer.
smuX.measure.v(rbuffer)
Reading buffer where voltage readings will be stored.
smuX.measure.i(rbuffer)
Reading buffer where current readings will be stored.
smuX.measure.iv(ibuffer,
vbuffer)
Stores the current and voltage readings in respective buffers
(current and voltage are stored in separate buffers).
smuX.measure.r(rbuffer)
Reading buffer where resistance readings will be stored.
smuX.measure.p(rbuffer)
Reading buffer where power readings will be stored.
smuX.trigger.measure.v(rbuffer)
Reading buffer where voltage readings will be stored.
smuX.trigger.measure.i(rbuffer)
Reading buffer where current readings will be stored.
smuX.trigger.measure.r(rbuffer)
Reading buffer where resistance readings will be stored.
smuX.trigger.measure.p(rbuffer)
Reading buffer where power readings will be stored.
smuX.trigger.measure.iv(ibuffer,
vbuffer)
Stores the current and voltage readings in respective buffers
(current and voltage are stored in separate buffers).
Commands to access readings:
printbuffer(start_index, end_index,
st_1, st_2, ... st_n)
Prints data from buffer subtables: start_index (starting index
of values to print).
end_index (ending index of values to print).
st_1, st_2, ... st_n (subtables from which to print each
separated by a comma).
Buffer storage control attributes
The following table contains buffer storage control attributes.

Keithley 2651A Specifications

General

Brand	Keithley
Model	2651A
Category	Measuring Instruments
Language	English