Keithley 2461 Reference Manual

Section
8: TSP command reference Model 2461 Interactive SourceMeter® Instrument
Reference Manual
8-116 2461-901-01 A/November 2015
smu.digitize.limit[Y].low.value
This attribute specifies the lower limit for limit tests.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW)
Yes
Restore configuration
Instrument reset
Power cycle
Measure configuration list
Configuration script
Measure configuration list
−1
Usage
lowLimit = smu.digitize.limit[Y].low.value
smu.digitize.limit[Y].low.value = lowLimit
lowLimit
The low limit value of limit Y (-9.99999E+11 to 9.99999E+11)
Y
Limit number:
1
or
2
Details
This command sets the lower limit for the limit Y test for the selected digitize function. When limit Y
testing is enabled, this causes a fail indication to occur when the measurement value is less than this
value.
Example
This example enables limits 1 and 2 for digitize voltage measurements. Limit 1 is checking for
readings to be between 3 and 5 V, while limit 2 is checking for the readings to be between 1 and 7 V.
The auto clear feature is disabled, so if any reading is outside these limits, the corresponding fail is 1.
Therefore, if any one of the fails is 1, analyze the reading buffer data to find out which reading failed
the limits.

Keithley 2461 Specifications

General

Maximum Current	7 A
Power	100 W
Resolution	6.5 digits
Source Measure Unit (SMU)	Yes
DC Voltage	100 V
Maximum Voltage	100 V
Display	5-inch capacitive touchscreen
Connectivity	USB, GPIB
Software	TSP
DC Current	7 A
Current Source Range	0 to 7 A
Voltage Measurement Range	100 mV to 100 V
Current Measurement Range	10 nA to 7 A
Voltage Measurement Resolution	100 nV