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Archiving is carried out by the Historian module - Aspad, which efficiently collects data of analog and binary signals. The designer has opportunity to choose the data archiving method: archiving in proprietary format files, guaranteeing data compression on the fly and deleting excess data, or in the MS SQL database

Data is logged using UTC (Universal Time Coordination), leaving no room for ambiguity regardless of winter or summer time, and data from distributed systems in various time zones will be seen in each time zone stamped with the time specific for the individual zone. 

The archived data are made available in the form of raw data or the aggregates to other modules of the Asix platform and third parties software.

  

Archiving Features

     200,000 variables registered on one server 
     Current data sampling period up to 10 samples per second

     Accuracy of data time recording - 100 ns
     Recording up to several hundred thousand samples per second in real time 
     Reading up to several million samples per second 
     Repeated values do not take up space in the archive 
     Subsequent records of values changes are subject to compression up to several bits per record 
     Backward supplementing of the historical data 
     Archive data types: integer, floating point 
     Automatic management of archive library

     Calculation and logging of a series of predefined aggregate values which significantly speed up advanced data analysis 
    On-the-fly replenishment of the gaps in the archive, if only another computer with missing data in its archive is identified on the network (automatically)

 

 

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