6-42 Source-Measure Concepts 2400 Series SourceMeter
®
User’s Manual
Buffer considerations
When the SourceMeter is in the process of storing readings, configuration changes affect
what gets stored in the buffer. These storage considerations and restrictions are summa-
rized in Table 6-3.
The first column of Table 6-3 shows the SourceMeter configuration when the storage pro-
cess is started. The next three columns show what happens when configuration changes
are made while the SourceMeter is storing readings.
Changing V, I, or Ω measurement function
• If you started with only a basic measurement function selected, the buffer will track
a basic measurement function change. For example, if you started in volts and
changed to current, the buffer will store the current readings.
• If you started with MATH, REL, and/or LIMITS enabled, the buffer will stop stor-
ing readings if you change the basic measurement function. Storage will continue
if you return to the original configuration.
See Section 3, “Basic source-measure procedure,” for more information on selecting the
measurement function.
Table 6-3
Buffer considerations
Configuration at start of
the storage process
What happens if the
basic measurement
function (V, I, or Ω)
is changed?
What happens if
the MATH function
is changed?
What happens if REL or
LIMITS is changed?
Measure V, I, or Ω
MATH (FCTN) enabled
REL/LIMITS enabled
Buffer tracks
Buffer pauses
Buffer pauses
V, I, or Ω stored
MATH not stored
OK
Buffer pauses
V, I, or Ω stored
REL or Limits not stored
MATH stored
REL or Limits not stored
OK
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