Rockwell Automation 1756-HIST2G FactoryTalk Historian ME 2.2 - Manual (Page 107)

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Collecting Data
This chapter contains the following sections:
„
“Collecting Data Overview”
„
“Starting and Stopping Data Collection”
„
“Viewing Data Collection Status”
„
“Storing Data”
„
“Exception Filtering”
„
“Compression Filtering”
Collecting Data Overview
To view Data Collection information, click Configure Historian in the main
navigation bar, and then click Data Collection in the left navigation bar.
The FactoryTalk Historian ME server collects data from the Logix controller through
the chassis backplane. The Data Collection service then optionally performs a series
of deadband tests on the data (exception and compression) and stores the data in the
FactoryTalk Historian ME archive. Information provided on the Data Collection page
includes:
„
Status - indicates whether Data Collection is stopped or running.
„
Collection Rate - the number of events per second that Data Collection receives
for configured ports.
„
Archive Rate - the number of events per second that pass exception and
compression tests and are committed to the archive.
„
Archive Capacity - the number days, hours, and minutes until all available archive
files are full. This number is an estimate. When all archive files are full, data
interruption may occur.
See the “Transferring Data” chapter for information about long-term storage on a
FactoryTalk Historian SE or PI server.