6-14
Averaging Filter, Math, and Buffer
Model 6220/6221 Reference Manual
Return to
Storing readings
For
front panel operation
, the buffer is always active (enabled), and post-math
readings are automatically stored in the buffer.
For
remote programming
, buffer feed can be pre-math readings or post-math
readings, or the buffer can be disabled.
The buffer commands are documented in
. The following example dem-
onstrates a simple command sequence to configure the buffer.
Example
– Configure the buffer to store pre-math delta readings. Storage will
start when Delta, Pulse Delta, or Differential Conductance is started.
Recall
For
front panel operation
, perform the following steps to view stored readings
and buffer statistics:
1.
Press
RECALL
. The reading stored in buffer location 0 will be displayed
along with the current source value and the timestamp.
2.
As shown in
, use the edit keys to navigate through the buffer to
view stored readings.
3.
To view buffer statistics, use the
EDIT/LOCAL
key. Each press of this key
displays the next statistic. After the last statistic is displayed (Std Dev),
pressing
EDIT/LOCAL
will display the stored readings.
4.
When finished, press
EXIT
to return to the normal display.
TRACe:CLE
‘ Clear buffer of readings.
TRACe:FEED SENS1
‘ Set buffer feed for pre-math delta readings.
TRACe:FEED:CONTrol NEXT
‘ Enable buffer.
NOTE
For front panel operation, compliance is not indicated for
buffer readings. For remote programming, the compli-
ance state (in or out) for each reading is returned if the
COMP (compliance) data element is enabled. For details
on data elements, see
.
NOTE
The buffer can be cleared by pressing the CONFIG key
and then the RECALL key. With the “CLEAR BUFFER?”
message displayed, select YES.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com
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