Keithley SourceMeter 2600 Series Reference Manual page 281

Series 2600 System SourceMeters Reference Manual
collectsourcevalues
collecttimestamps
n
timestampresolution
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
measureranges
readings
sourcefunctions
sourceoutputstates
sourceranges
sourcevalues
statuses
timestamps
For example, the number of readings the reading buffer can store is accessed as
rb.capacity
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.
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.
The number of readings in the reading buffer.
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.
An array (TSL table) of strings indicating the function
measured for the reading (Current, Voltage, Ohms or Watts).
An array (TSL table) of full scale range values for the
measure range used when the measurement was made.
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.readings[2]
An array (TSL table) of strings indicating the source function
at the time of the measurement (Current or Voltage).
An array (TSL table) of strings indicating the state of the
source (Off or On).
An array (TSL table) of full scale range values for the source
range used when the measurement was made.
If enabled (see
(TSL table) of the sourced value in effect at the time of the
reading.
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.
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.
.
Return to Section 12 topics
Instrument Control Library 12-7
are the same value.
collectsourcevalues
2600S-901-01 Rev. A / May 2006
and
rb[2]
above), an array