12-68 Instrument Control Library Series 2600 System SourceMeters Reference Manual
2600S-901-01 Rev. A / May 2006 Return to Section 12 topics
smuX.contact.threshold
X = SMU channel (a or b)
Function Resistance threshold for the smuX.contact.check function.
Usage smuX.contact.threshold = rvalue -- writes the threshold
rvalue = smuX.contact.threshold -- reads the threshold
rvalue -- Set to the resistance, in ohms, above which contact check should fail
Remarks The default threshold is 50Ω. The threshold should be set to less than 1kΩ.
Details See Section 3 for connections.
Also see smuX.contact.check
Example Set the contact check threshold for SMU A to 5Ω:
smua.contact.threshold = 5
smuX.makebuffer
X = SMU channel (a or b)
Function Creates a RAM buffer.
Usage
mybuffer = smuX.makebuffer(buffersize)
buffersize Number of readings that can be stored.
Remarks
• RAM 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 RAM buffer can be deleted using nil. The following command deletes
mybuffer:
mybuffer = nil
Details See “Reading buffers” in Section 7.
Also see smuX.nvbufferY
Example
Creates a 200 reading RAM buffer named “mybuffer2” for SMUA:
mybuffer2 = smua.makebuffer(200)
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