Section 7: TSP command reference
Series 2600B System SourceMeter® Instrument Reference Manual
7-240
2600BS-901-01 Rev. C / August 2016
Also see
(on page 7-236)
(on page 7-237)
(on page 7-244)
(on page 4-1)
smuX.source.limitY
This attribute sets compliance limits.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Attribute (RW)
Yes
SMU reset
Instrument reset
Recall setup
Saved setup
Limit voltage:
Models 2601B/2602B/2604B: 40 (40 V)
Models
2611B/2612B/2614B/2634B/2635B/2636B:
20 (20 V)
Limit current:
Models 2601B/2602B/2604B: 1 (1 A)
Models
2611B/2612B/2614B/2634B/2635B/2636B:
100e-3 (100 mA)
Limit power: 0 (disabled)
Usage
limit
= smu
X
.source.limit
Y
smu
X
.source.limit
Y
=
limit
limit
The compliance limit value; set to one of the following values:
Voltage compliance:
Models 2601B/2602B/2604B: 10 mV to 40 V
Models 2611B/2612B/2614B/2634B/2635B/2636B: 20 mV to 200 V
Current compliance:
Models 2601B/2602B/2604B/2611B/2612B/2614B: 10 nA to 3 A
Models 2634B/2635B/2636B: 100 pA to 1.5 A
Power compliance (in watts)
X
Source-measure unit (SMU) channel (for example,
smua.source.limitv
applies to SMU
channel A)
Y
SMU function (
v
= voltage,
i
= current)
Details
Use the
smu
X
.source.limiti
attribute to limit the current output of the voltage source. Use
smu
X
.source.limitv
to limit the voltage output of the current source. The SMU always uses
autoranging for the limit setting. Use the
smu
X
.source.limitp
attribute to limit the output power of
the source.
This attribute should be set in the test sequence before the turning the source on.
Using a limit value of 0 results in error code 1102, "Parameter too small," for
v
and
i
. Setting this
attribute to zero disables power compliance for
p
. When setting the power compliance limit to a
nonzero value, the SMU adjusts the source limit where appropriate to limit the output to the specified
power. The SMU uses the lower of the programmed compliance value (the compliance level that
would be used if power compliance were disabled) or the limit calculated from the power compliance
setting.
Reading this attribute indicates the presently set compliance value. Use
smu
X
.source.compliance
to read the state of source compliance.
