Keithley System SourceMeter 2601B, Справочное руководство

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Section 7: TSP command reference Series 2600B System SourceMeter® Instrument Reference Manual
7-20 2600BS-901-01 Rev. B / May 2013
Details
Assigning a value to this attribute enables or disables the storage of source values. Reading this attribute returns
the state of source value collection. This value can only be changed with an empty buffer. Empty the buffer using
the
bufferVar .clear()
function.
For dedicated reading buffers, all buffer attributes are saved to nonvolatile memory only when the reading buffer
is saved to nonvolatile memory.
When on, source values will be stored with readings in the buffer. This requires four extra bytes of storage for
each reading. Turning on additional collection items, such as source values (this attribute) and timestamps,
decreases the capacity of a dedicated reading buffer (for example,
smua.nvbuffer1
), but does not change the
capacity of a user-defined dynamically allocated buffer.
Example
smua.nvbuffer1.collectsourcevalues = 1
Include source values with readings for
dedicated reading buffer 1 (source-measure
unit (SMU) channel A).
Also see
bufferVar.clear() (on page 7-18)
Reading buffers (on page 3-6)
smuX.measure.overlappedY() (on page 7-209)
smuX.measure.Y() (on page 7-213)
smuX.nvbufferY (on page 7-215)
smuX.trigger.measure.Y() (on page 7-244)
bufferVar.collecttimestamps
This attribute sets whether or not timestamp values are stored with the readings in the buffer.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW) Yes Not applicable See
Details
0 (disabled)
Usage
state = bufferVar .collecttimestamps
bufferVar .collecttimestamps = state
state Timestamp value collection status; set to one of the following:
•
0
: Timestamp value collection disabled (off)
•
1
: Timestamp value collection enabled (on)
bufferVar The reading buffer. Can be a dynamically allocated user-defined buffer or a
dedicated reading buffer.
Details
Assigning a value to this attribute enables or disables the storage of timestamps. Reading this attribute returns
the state of timestamp collection.
For dedicated reading buffers, all buffer attributes are saved to nonvolatile memory only when the reading buffer
is saved to nonvolatile memory.
When on, timestamp values are stored with readings in the buffer. This requires four extra bytes of storage for
each reading. Turning on additional collection items, such as timestamps (this attribute) and source values,
decreases the capacity of a dedicated reading buffer (for example,
smua.nvbuffer1
), but does not change the
capacity of a user-defined dynamically allocated buffer.
This value, off (0) or on (1), can only be changed when the buffer is empty. Empty the buffer using the
bufferVar .clear()
function.