Keithley 2461 Reference Manual

Model 2461
Interactive SourceMeter® Instrument Reference Manual Section 6:
SCPI command reference
2461-901-01 A/November 2015 6-165
Details
If this is set to on, when the reading buffer is cleared (0 % filled) or full (100 % filled), an event is
logged in the event log. If this is set to off, reading buffer status is not reported in the event log.
Example
TRACe:LOG:STATe?
Query the log state of defbuffer1.
Output:
1
Indicates that the log state is on.
Also see
Reading buffers (on page 3-2)
Remote buffer operation (on page 3-23)
:TRACe:MAKE (on page 6-165)
Using the event log (on page 2-142)
:TRACe:MAKE
This command creates a user-defined reading buffer.
Type Affected by Where saved Default value
Command only
Recall settings
Instrument reset
Power cycle
Save settings Not applicable
Usage
:TRACe:MAKE "<bufferName>", <bufferSize>
:TRACe:MAKE "<bufferName>", <bufferSize>, <bufferStyle>
<bufferName>
A user-supplied string that indicates the name of the buffer
<bufferSize>
A number that indicates the maximum number of readings that can be stored in
<bufferName>
; minimum is 10
<bufferStyle>
The type of reading buffer to create:
• Store readings with reduced accuracy (6.5 digits) with no formatting
information, 1 μs accurate timestamp, maximum 27,500,000 readings:
COMPact
• Store readings with full accuracy with formatting, maximum 6,875,000
readings: STANdard (default)
• Store the same information as standard, plus additional information: FULL
• Store external reading buffer data: WRITable
•
Store external reading buffer data with two reading values: FULLWRITable
Details
You cannot assign user-defined reading buffers the name defbuffer1 or defbuffer2.
If you create a reading buffer that has the same name as an existing user-defined buffer, an event
message 1115, "Parameter error: TRACe:MAKE cannot take an existing reading buffer name" is
generated.
When you create a reading buffer, it becomes the active buffer. If you create two reading buffers, the
last one you create becomes the active buffer.
The default fill mode of a user-defined buffer is once. You can change it to continuous.

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