2600AS-901-01 Rev. B / September 2008
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19-111
Series 2600A System SourceMeter® Instruments Reference Manual
Section 19: Remote Commands
smuX.contact.threshold
X = SMU channel (a or b)
Attribute
Resistance threshold for the
smuX.contact.check
function.
Default
50
TSP-Link
accessibility
This attribute can be accessed from a remote TSP-Link node.
Usage
rvalue = smuX.contact.threshold
-- Reads threshold value.
smuX.contact.threshold = rvalue
-- Writes threshold value.
smuX.contact.threshold = rvalue
rvalue = smuX.contact.threshold
rvalue
The resistance, in ohms, above which contact check should fail.
Remarks
The default threshold is 50
Ω
. The threshold should be set to less than 1k
Ω
.
Also see
Example
Set the contact check threshold for SMU A to 5
Ω
:
smua.contact.threshold = 5
smuX.makebuffer
X = SMU channel (a or b)
Function
Creates a reading buffer.
Default
50
TSP-Link
accessibility
This function can be accessed from a remote TSP-Link node.
Usage
mybuffer = smuX.makebuffer(buffersize)
buffersize
Number of readings that can be stored.
mybuffer
The reading buffer.
Remarks
• Reading buffers can be allocated dynamically. These are created and allocated with the
smuX.makebuffer(buffer)
function, where
buffersize
is the number of readings the
buffer can store.
• Dynamically allocated reading buffers can be used interchangeably with the
smuX.nvbufferY
buffers.
• A reading buffer can be deleted by setting all references to the reading buffer equal to
nil
, then
running the garbage collector.
Details
See
Also see
Example
Creates a 200 reading RAM buffer named “mybuffer2” for SMUA:
mybuffer2 = smua.makebuffer(200)
