Browse Definitions :
Definition

data historian

Contributor(s): Matthew Haughn

A data historian is a software program that records the data of processes running in a computer system.

Data historians are commonly used where reliability and uptime are critical. The programs are used to gather information about the operation of programs in order to diagnose failures. Data historians are most common in datacenters and industrial control systems (ICS).

Often, data historians are part of the software in systems used in several processes including:

  • Chemical plants
  • Datacenters
  • Quality control
  • Boiler controls and power plant
  • Nuclear power plants
  • Environmental control
  • Water management
  • Agriculture
  • Food and food processing
  • Automobile manufacturing
  • Pharmaceutical manufacturing
  • Sugar refining plants

The data from numerous sensors, intelligent electronic devices (IEDs), distributed control systems, programmable logic controllers, lab instruments and manually entered data are collected by data historians.

Data historian records might include:

  • Analog data such as CPU temperature, fan and other equipment’s RPMs, flow rates, fluid levels and pressure levels.
  • Digital readings such as valve positions, limit switches, discrete level sensors and whether motors are on or off.
  • Quality assurance data like process, product and custom limits.
  • Alerts such as out of limit and return to normal signals
  • Aggregate data such as average, standard deviation, process capability, moving average

This data is time-stamped and cataloged in an organized, quickly machine-readable format. The data gathered is analyzed to compare the performance of the day and night shifts, different work crews, production runs, material lots and through seasons. Data from data historians is used to answer many performance and efficiency-related questions. Extra insights are gained by visual presentations of the data called data visualization.

This was last updated in September 2017

Continue Reading About data historian

Join the conversation

1 comment

Send me notifications when other members comment.

Please create a username to comment.

Will IIoT disrupt the use of data historians?
Cancel

-ADS BY GOOGLE

File Extensions and File Formats

SearchCompliance

  • regulatory compliance

    Regulatory compliance is an organization's adherence to laws, regulations, guidelines and specifications relevant to its business...

  • Whistleblower Protection Act

    The Whistleblower Protection Act of 1989 is a law that protects federal government employees in the United States from ...

  • smart contract

    A smart contract, also known as a cryptocontract, is a computer program that directly controls the transfer of digital currencies...

SearchSecurity

  • RSA algorithm (Rivest-Shamir-Adleman)

    The RSA algorithm is the basis of a cryptosystem -- a suite of cryptographic algorithms that are used for specific security ...

  • remote access

    Remote access is the ability to access a computer or a network remotely through a network connection.

  • IP Spoofing

    IP spoofing is the crafting of Internet Protocol (IP) packets with a source IP address that has been modified to impersonate ...

SearchHealthIT

SearchDisasterRecovery

  • virtual disaster recovery

    Virtual disaster recovery is a type of DR that typically involves replication and allows a user to fail over to virtualized ...

  • tabletop exercise (TTX)

    A tabletop exercise (TTX) is a disaster preparedness activity that takes participants through the process of dealing with a ...

  • risk mitigation

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a data center.

SearchStorage

  • enterprise storage

    Enterprise storage is a centralized repository for business information that provides common data management, protection and data...

  • disk array

    A disk array, also called a storage array, is a data storage system used for block-based storage, file-based storage or object ...

  • optical storage

    Optical storage is any storage type in which data is written and read with a laser. Typically, data is written to optical media, ...

Close