Collect data

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 tests) and stores the data in the
FactoryTalk Historian ME
 archive.
When started, the data collection service performs the following actions:
  • Identifies all points listed as active, based on the value of the
    Scan
     property in the definition of the points.
  • Identifies (or registers) all controllers in the same Logix chassis by logical names, device IDs, and location (slot numbers).
    FactoryTalk Historian ME
     supports up to 10 controllers. There is a maximum of 5 controllers in the local chassis and a maximum of 5 controllers in the remote chassis.
  • Begins collecting data for all points based on the specified scan rate associated with each point.
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