KPRoth

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  1. 3 votes

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    1 comment  ·  PI Connectors » Other specific PI Connector  ·  Flag idea as inappropriate…  ·  Admin →

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    KPRoth commented  · 

    The prior version (1.1.0.5) only applied the DefaultPointAttributes once, when an auto-sync'd Pi tag was first created, and never forcibly re-applied the default attribute when the connector was restarted. That behavior allowed us to set a reasonable default compression-deviation setting for all new tags, but then come back later and further tune the compdev value on specific tags. Unfortunately with the new behavior as of 1.1.1.42, the ability to come back and tune the compdev settings is lost. This needs to become an option again for us.

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  2. 18 votes

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    4 comments  ·  PI Connectors » General  ·  Flag idea as inappropriate…  ·  Admin →

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    KPRoth commented  · 

    In addition to latency, there are also bandwidth related costs to be considered. One example is passing data back from a field site over a cellular m2m link, where bandwidth is paid for by the megabyte. Another example, which I'm specifically running into with the PI Connector for GE e-terraHabitat (HabConnect), is when the resulting snapshot stream is being routed through the OWL Pi Transfer Service (and their data diode network security device) from a SCADA or DMZ Pi server out to a Corporate Network Pi server. The OWL device is purchased based on the expected transfer bandwidth.

    I want to add that I find it disappointing that PI Interfaces (including the one for e-terraHabitat) tended to support Exception Deviation settings to pre-filter snapshot data, but that PI Connectors do not support this mechanism. It seems clear that there are many benefits to adding the option to support exception deviation to connectors.

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  3. 1 vote

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    0 comments  ·  PI Connectors » Other specific PI Connector  ·  Flag idea as inappropriate…  ·  Admin →

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  4. 4 votes

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    1 comment  ·  PI Connectors » Other specific PI Connector  ·  Flag idea as inappropriate…  ·  Admin →

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  5. 9 votes

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