Model 2601B-PULSE System SourceMeter Instrument Reference Manual Section 5: Reading buffers
2601B-PULSE-901-01A April 2020 5-9
Buffer read-only attributes
The following table contains buffer read-only attributes.
Buffer read-only attributes: Read-only attributes used to access buffer parameters
The timestamp of when the reading at rb[1] was stored, in seconds from midnight
January 1, 1970 GMT. See Time and date values (on page 11-2) for additional details.
The total number of readings that can be stored in the reading buffer.
The number of readings in the reading buffer.
This attribute indicates where the next element that is added to the reading
buffer is stored.
Buffer storage control programming examples
The programming examples below illustrate the use of buffer storage control attributes.
Buffer control programming examples
smua.nvbuffer1.collectsourcevalues = 1
Enable source value storage.
smua.nvbuffer1.appendmode = 1
Enable buffer append mode.
smua.nvbuffer1.collecttimestamps = 0
Disable timestamp storage.
smua.nvbuffer1.timestampresolution = 0.001
Set timestamp resolution to 0.001024 s.
smua.nvbuffer1.fillcount = 50
Set 50 as the number of readings the buffer stores
before restarting at index 1.
smua.nvbuffer1.fillmode = 0
Set the reading buffer to fill once (do not overwrite
old data).
Buffer read-only attribute programming examples
The follow programming examples illustrate use of buffer read-only attributes.
Buffer read-only attribute programming examples:
number = smua.nvbuffer1.n
Request the number of readings in the buffer.
buffer_size = smua.nvbuffer1.capacity
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