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Model 2657A High Power System SourceMeter® Instrument Reference Manual
Section 7: TSP command reference
2657A-901-01 Rev. B/December 2012
7-23
Details
When this attribute is set to
smu
X
.FILL_ONCE
, the reading buffer will not overwrite readings. If the buffer fills up,
new readings will be discarded.
When this attribute is set to
smu
X
.FILL_WINDOW
, new readings will be added after existing data until the buffer
holds
bufferVar
.fillcount
elements. Continuing the sequence, the next reading will overwrite the reading
at index 1, the reading after that will overwrite the reading at index 2, and so on.
For dedicated reading buffers, all buffer attributes are saved to nonvolatile memory only when the reading buffer
is saved to nonvolatile memory.
Example
smua.nvbuffer1.fillmode = smua.FILL_ONCE
Sets fill mode of dedicated reading
buffer 1 to fill once (do not overwrite
old data).
Also see
(on page 3-6)
bufferVar.measurefunctions
This attribute contains the measurement function that was used to acquire a reading stored in a specified reading
buffer.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Attribute (R)
Yes
Clearing the buffer See
Details
Not
applicable
Usage
measurefunction
=
bufferVar
.measurefunctions[
N
]
measurefunction
The measurement function used (
"current"
,
"voltage"
,
"ohms"
, or
"watts
")
to acquire reading number
N
in the specified buffer
bufferVar
The reading buffer; can be a dynamically allocated buffer (user-defined), or a
dedicated reading buffer (such as
smua.nvbuffer1
)
N
The reading number (
1
to
bufferVar
.n
)
Details
The
measurefunctions
buffer recall attribute is like an array (a Lua table) of strings indicating the function
measured for the reading.
For dedicated reading buffers, all buffer attributes are saved to nonvolatile memory only when the reading buffer
is saved to nonvolatile memory.
Содержание 2657A
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