Home > Data Acquisition, OSI PI, Process Historian > OSIsoft PI Historian: A Data Historian Overview

OSIsoft PI Historian: A Data Historian Overview

A PI Historian is a real-time data historian developed by OSIsoft. The PI Historian records data values over time in a proprietary time-series database. All different types of data can be recorded and each distinct piece of data is known as a PI tag. For a given PI tag, you record its events or data values over time. The recording of different data over time allows for historic data graphing and analysis, for example:

  • Watch free disk space degrade over time in a Microsoft Data Center
  • Monitor a valve for an evironmental release in a production facility
  • Record which lot of raw material went into a batch of Tylenol
  • Monitor power usage on a turbine power skid in Iraq
  • Monitor the temperature of your tropical fish tank
  • Monitor Search Engine rankings for a keyword phrase

The use of a data historian is widespread and growing more diverse every day! Automated Results has been working with this product and it’s manufacturer since 1996.

Have a question about process historians or OSI PI or Give us a call: (828) 862-6667 or send us an email

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