Digital Control System


Also found in: Acronyms.

Digital Control System

(system)
(DCS) A digital computer used for real-time control of a dynamic system, usually in an industrial environment, possibly as part of a Supervisory Control and Data Acquisition (SCADA) system.

A DCS samples feedback from the system under control and modifies the control signals in an attempt to achieve some desired behaviour.

Analysis of such digital-analogue feedback systems can involve mathematical methods such as difference equations, Laplace transforms, z transfer functions, state space models and state transition matrices.
References in periodicals archive ?
In addition, the new digital control system captures elevator activity to more intelligently dispatch elevators faster and more efficiently based on need.
Avanex Corporation (Nasdaq:AVNX), a pioneer of intelligent photonic solutions that enable next-generation optical networks, today announced that it will demonstrate optical amplifiers with its breakthrough Digital Control System (DCS) thermal management technology at the Optical Fiber Communications Conference and Exhibition (OFC/NFOEC) held at the Anaheim Convention Center in Anaheim, Calif.
The contract pioneers the full digital solution for the Americas with the latest DS Agile digital control system and MiCOM protection relays; contract scope also includes two power transformers, gas-insulated switchgear, and protection and control systems.
At the time of the shutdown, we were conducting required tests on a new integrated digital control system for plant equipment and on pumps that provide water to the reactor vessel," said Jeff Helsel, PPL's Susquehanna plant manager.
The TreStar P Series' new digital control system eliminates all overloads, frequency variations, transients, flicker and blackouts in real-time.
During the refueling and maintenance outage that concluded last month, we made several equipment upgrades, including installing a new integrated digital control system for plant equipment and replacing turbines that power pumps providing water to the reactor vessel," said Jeff Helsel, PPL's Susquehanna plant manager.
The plant, a 615 MW coal fired unit, is undergoing a control room modernization that includes the Emerson Ovation Digital Control System.
Included in the upgrades was installation of a new state-of-the-art digital control system that was being tested when the unit shut down," Helsel said.
Upgrade work on Unit 1 during the outage included installing a new state-of-the-art integrated digital control system for plant equipment and replacing turbines that power pumps that provide water to the reactor vessel.
This year's upgrade work on Unit 1 includes installing a new state-of-the-art integrated digital control system for plant equipment and replacement of turbines that power pumps that provide water to the reactor vessel.
Continuing the upgrades -- which earlier this year included installing a state-of-the-art digital control system for the plant -- PPL Montana this year will add equipment to reduce nitrogen oxides emissions on Unit 3 and in 2009 on Unit 4.
CINTEP's shower incorporates a touch screen control, an internet ready digital control system that gives precise temperature and flow control and enables real time 2 way communication with building management systems.

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