PI Historian Source block
The PI Historian source block reads field data from a PI Historian server.
NOTE: This block has a discrete source version. For more information on configuring the discrete version of this block, click here.
PI Historian Source block
Description
During execution the value and quality for every tag for the given timestamp are read from the server. If an entry for the given tag and timestamp is not found the value is set to 0 and the quality is set to bad.
PI Historian source block
Block Type
Input/Output block
Input/Output ports
The PI Historian source has no input ports and one output port.
Functions performed on tags
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On the values - The value will be set as read from the historian.
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On the timestamp - The timestamp will be set as read from the historian.
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On the quality - The quality will be interpreted as follows: a value of 1 signifies good quality, while for any other value, the quality will be interpreted as bad.
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