Tektronix KEITHLEY SourceMeter 2606B Reference Manual page 395

Section 15: TSP command reference
To avoid this, you can include explicit calls to the bufferVar.clearcache() function to remove
stale values from the reading buffer cache.
Example
smua.nvbuffer1.clearcache()
Also see
bufferVar.fillmode
Reading buffers
Removing stale values from the reading buffer cache
smuX.nvbufferY
bufferVar.collectsourcevalues
This attribute sets whether or not source values are stored with the readings in the buffer.
Type TSP-Link accessible
Attribute (RW) Yes
Usage
state = bufferVar.collectsourcevalues
bufferVar.collectsourcevalues = state
state
bufferVar
Details
Assigning a value to this attribute enables or disables the storage of source values. Reading this
attribute returns the state of source value collection. This value can only be changed with an empty
buffer. Empty the buffer using the bufferVar.clear() function.
For dedicated reading buffers, all buffer attributes are saved to nonvolatile memory only when the
reading buffer is saved to nonvolatile memory.
When on, source values are stored with readings in the buffer. This requires four extra bytes of
storage for each reading. Turning on additional collection items, such as source values (this attribute)
and timestamps, decreases the capacity of a dedicated reading buffer, but does not change the
capacity of a user-defined dynamically allocated buffer.
You cannot collect source values when smuX.trigger.measure.action is set to smuX.ASYNC,
so bufferVar.collectsourcevalues must be set to 0 when the measurement action is set to be
asynchronous.
Example
smua.nvbuffer1.collectsourcevalues = 1
15-22
(on page 15-25)
(on page 6-1)
(on page 15-230)
Affected by
Not applicable
Source value collection status; set to one of the following:
▪
0: Source value collection disabled (off)
▪
1: Source value collection enabled (on)
The reading buffer; can be a dynamically allocated buffer (user-defined), or a
dedicated reading buffer (such as smua.nvbuffer1)
Model 2606B System SourceMeter® Instrument Reference Manual
Clears the reading buffer cache for dedicated reading buffer 1.
(on page 14-63)
Where saved
See Details
Include source values with readings for
dedicated reading buffer 1.
2606B-901-01 Rev. C November 2021
Default value
0 (disabled)