Series 2600 System SourceMeters Reference Manual
Instrument Control Library 12-7
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2600S-901-01 Rev. A / May 2006
The following values are available per reading, i.e.,
rb.measurefunctions[3]
,
as enabled. Each is actually a nested table. Related entries are stored at the
same index as the relevant measurement.
measurefunctions
An array (TSL table) of strings indicating the function
measured for the reading (Current, Voltage, Ohms or Watts).
measureranges
An array (TSL table) of full scale range values for the
measure range used when the measurement was made.
readings
An array (TSL table) of the readings stored in the reading
buffer. This array holds the same data that is returned when
the reading buffer is accessed directly, i.e.,
rb[2]
and
rb.readings[2]
are the same value.
sourcefunctions
An array (TSL table) of strings indicating the source function
at the time of the measurement (Current or Voltage).
sourceoutputstates
An array (TSL table) of strings indicating the state of the
source (Off or On).
sourceranges
An array (TSL table) of full scale range values for the source
range used when the measurement was made.
sourcevalues
If enabled (see
collectsourcevalues
above), an array
(TSL table) of the sourced value in effect at the time of the
reading.
statuses
An array (TSL table) of status values for all of the readings in
the buffer. The status values are floating-point numbers that
encode the status value into a floating-point value.
timestamps
An array (TSL table) of timestamps, in seconds, of when
each reading occurred. These can be compared to the
basetimestamp for the buffer for time lapsed.
For example, the number of readings the reading buffer can store is accessed as
rb.capacity
.
collectsourcevalues
When on, source values will be stored with readings in
the buffer. This requires four extra bytes of storage per
reading. This value, off or on, can only be changed when
the buffer is empty. When the buffer is created, this
attribute is initialized to off.
collecttimestamps
When on, timestamps will be stored with readings in the
buffer. This requires four extra bytes of storage per
reading. This value, off or on, can only be changed when
the buffer is empty. When the buffer is created, this
attribute is initialized to off.
n
The number of readings in the reading buffer.
timestampresolution
The timestamp resolution, in seconds. When the buffer is
created, its initial resolution is 0.000001 seconds. At this
resolution, the reading buffer can store unique times-
tamps for up to 71 minutes. This value can be increased
for very long tests.
Summary of Contents for SourceMeter 2600 Series
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