Section 6: SCPI command reference
Model DMM7510 7½ Digit Graphical Sampling Multimeter Reference Manual
6-160
DMM7510-901-01 Rev. B / May 2015
: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 11,000,000
readings:
STANdard
(default)
•
Store the same information as standard, plus additional information, such as
the ratio component of a DCV ratio measurement:
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.
Once the buffer style is selected, it cannot be changed.
Once you store the first reading in a compact buffer, you cannot change certain measurement
settings, including range, display digits, and units; you must clear the buffer first.
Not all remote commands are compatible with the compact, writable, and full writable buffer styles.
Check the Details section of the command descriptions before using them with any of these buffer
styles.
Writable readings are used to bring external data into the instrument. You cannot assign them to
collect data from the instrument.
You can change the buffer capacity for an existing buffer through the front panel or by using the
:TRACe:POINts
command.
Example 1
TRACe:MAKE "capTrace", 200, WRITable
Create a 200-element writable reading buffer named
capTrace
.
