2600AS-901-01 Rev. B / September 2008 Return to Section Topics 19-133
Series 2600A System SourceMeter® Instruments Reference Manual Section 19: Remote Commands
smuX.source.func
X = SMU channel (a or b)
Attribute Source function.
Default smuX.OUTPUT_DCVOLTS
TSP-Link
accessibility
This attribute can be accessed from a remote TSP-Link node.
Usage iv = smuX.source.func -- Reads source function.
smuX.source.func = iv -- Writes source function.
iv The source function.
Set iv to one of the following values:
0 or smuX.OUTPUT_DCAMPS Selects current source function.
1 or smuX.OUTPUT_DCVOLTS Selects voltage source function.
Remarks • Reading this attribute gives the output function of the source. Setting this attribute configures the
SMU as either a voltage source or a current source.
• The reset function selects the voltage function.
Details See Section 4.
Also see smuX.source.output, smuX.source.levelY
Example Selects the source amps function for SMU A:
smua.source.func = smua.OUTPUT_DCAMPS
smuX.source.highc
X = SMU channel (a or b)
Attribute High capacitance mode.
Default smuX.DISABLE
TSP-Link
accessibility
This attribute can be accessed from a remote TSP-Link node.
Usage highc = smuX.source.highc -- Reads the High-C setting.
smuX.source.highc = highc -- Writes the High-C mode.
highc The High-C mode.
Set highc to one of the following values:
1 or smuX.ENABLE Turns on high capacitance mode.
0 or smuX.DISABLE Turns off high capacitance mode.
Remarks • Turning on High-C mode has the following effects on the SMU settings:
• smuX.measure.autorangei is set to smuX.AUTORANGE_FOLLOW_LIMIT and cannot be
changed.
• Current ranges below 1uA are not accessible
• If smuX.source.limiti is less than 1uA, it is raised to 1uA.
• If smuX.source.rangei is less than 1uA, it is raised to 1uA.
• If smuX.source.lowrangei is less than 1uA, it is raised to 1uA.
• If smuX.measure.lowrangei is less than 1uA, it is raised to 1uA.
Details For more information on High-C mode, see Section 5.
Example Activate high capacitance mode for SMU A:
smua.source.highc = smua.ENABLE