Browse Definitions :
Definition

remote terminal unit (RTU)

A remote terminal unit (RTU) is a microprocessor-based electronic device used in industrial control systems (ICS) to connect various hardware to distributed control systems (DCS) or supervisory control and data acquisition (SCADA). RTUs are also referred to as remote telemetry units or remote telecontrol units.

RTUs pass sensor data from input streams in control loops to an output stream to be forwarded on to centralized control in an ICS. RTUs automatically negotiate connections to either local or remote controls.

Found everywhere ICS are used, RTUs are part of the systems used in several processes, including:

  • Petrochemical (oil) and refineries
  • Nuclear power plants
  • Agriculture
  • Quality control
  • Chemical plants
  • Sewage treatment plants
  • Food processing
  • Automobile manufacturing
  • Pharmaceutical manufacturing
  • Water treatment plants

RTUs monitor both analog and digital field data. An RTU gets the data from sensors monitoring target industrial process variables and then forwards that data onto centralized monitoring and control. The hardware of an RTU contains the setup software required to connect data output streams, communication protocols and built-in troubleshooting. The devices are often powered by AC mains with DC converters and sometimes battery backup.

This was last updated in September 2017

Continue Reading About remote terminal unit (RTU)

SearchCompliance
  • compliance risk

    Compliance risk is an organization's potential exposure to legal penalties, financial forfeiture and material loss, resulting ...

  • information governance

    Information governance is a holistic approach to managing corporate information by implementing processes, roles, controls and ...

  • enterprise document management (EDM)

    Enterprise document management (EDM) is a strategy for overseeing an organization's paper and electronic documents so they can be...

SearchSecurity
  • cipher block chaining (CBC)

    Cipher block chaining (CBC) is a mode of operation for a block cipher -- one in which a sequence of bits are encrypted as a ...

  • block cipher

    A block cipher is a method of encrypting data in blocks to produce ciphertext using a cryptographic key and algorithm.

  • hacker

    A hacker is an individual who uses computer, networking or other skills to overcome a technical problem.

SearchHealthIT
SearchDisasterRecovery
  • risk mitigation

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

  • call tree

    A call tree is a layered hierarchical communication model that is used to notify specific individuals of an event and coordinate ...

  • Disaster Recovery as a Service (DRaaS)

    Disaster recovery as a service (DRaaS) is the replication and hosting of physical or virtual servers by a third party to provide ...

SearchStorage
  • cloud storage

    Cloud storage is a service model in which data is transmitted and stored on remote storage systems, where it is maintained, ...

  • cloud testing

    Cloud testing is the process of using the cloud computing resources of a third-party service provider to test software ...

  • storage virtualization

    Storage virtualization is the pooling of physical storage from multiple storage devices into what appears to be a single storage ...

Close