By default, before recalculating tag values, the CygNet collectordeletes any previously stored values. This topic describes how to disable this
feature.
Procedure
Access the following registry key:
HKEY_LOCAL_MACHINE\SOFTWARE\Intellution,
Inc.\iHistorian\Services\CygNetCollector\<entry>
Add the DeleteBeforeRecalc (DWORD) DWORD, and set it to
0.
Previously stored tag values will no longer be deleted before
recalculation.
