Keithley 2461 Reference Manual

Model 2461
Interactive SourceMeter® Instrument Reference Manual Section 8:
TSP command reference
2461-901-01 A/November 2015 8-31
bufferVar.sourcestatuses
This attribute contains the source status conditions of the instrument for the reading point.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (R) Yes
Restore configuration
Instrument reset
Power cycle
Not applicable Not applicable
Usage
statusInformation = bufferVar.sourcestatuses[N]
statusInformation
The status value when reading N of the specified buffer was acquired;
Source status values are:
• Overvoltage protection was active: buffer.STAT_PROTECTION
• Measured source value was read: buffer.STAT_READBACK
• Overtemperature condition was active: buffer.STAT_OVER_TEMP
• Source function level was limited: buffer.STAT_LIMIT
• Four-wire sense was used: buffer.STAT_SENSE
• Output was on:
buffer.STAT_OUTPUT
bufferVar
The name of the reading buffer, which may be a default buffer (defbuffer1 or
defbuffer2
) or a user-defined buffer
N
The reading number N; can be any value from 1 to the number of readings in the
buffer; use the bufferVar.n command to determine the number of readings in
the buffer
Details
This buffer recall attribute holds an array (a Lua table) of the status values for all the readings in the
buffer. The status values are floating-point numbers that encode the status value for each
measurement taken; see the following tables for values.
Buffer status bits for source function when reading was acquired
Bit Name Decimal value Description
2
STAT_PROTECTION
4
Overvoltage protection was active
3
STAT_READBACK
8 Measured source value was read
4
STAT_OVER_TEMP
16
Overtemperature condition was active
5
STAT_LIMIT
32
Source function level was limited
6
STAT_SENSE
64
Four-wire sense was used
7
STAT_OUTPUT
128
Output was on

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