Local Area Lingo: A Turn-of-the-Century Controls Glossary

Control network: A collection of DDC microcontrollers distributed throughout a facility that use a control protocol and one or more network media to communicate. Control protocol: An electronic language spoken between microcomputer-based DDC controllers to pass values and commands.

02/01/2001


Control network : A collection of DDC microcontrollers distributed throughout a facility that use a control protocol and one or more network media to communicate.

Control protocol : An electronic language spoken between microcomputer-based DDC controllers to pass values and commands.

Direct-digital control (DDC): An automated control scheme using microcomputers connected to electronic sensors and actuators.

Distributed control : Automated control using microcomputer-based controllers distributed on a control network throughout a facility. Each microcontroller in a distributed system has local "intelligence" or logic capability and also communicates via a control protocol to other microcontrollers on a control network over one or more network media.

Gateway : A hardware or software device that translates from one control protocol to another.

Hierarchical control network : A method of building control networks where parent controllers manage small subnetworks with fixed numbers of controllers under a given parent device.

Media converter : A device used to move from one network media to another.

Microcontroller : A microcomputer with local logic capability as well as sensory input and actuator outputs used in a distributed control network .

Network media : The physical method of transmission of a control protocol . Examples include radio frequency, power-line carrier, infrared light and various wiring schemes such as Ethernet, twisted-pair and serial connections.

Parent controller : A logic device used in hierarchical control networks to manage a fixed number of smaller devices. Typical hierarchal implementations use this controller also as a gateway or media converter .

Peer-control network : A control network in which any device can communicate to any other device without the need to pass through a parent controller or gateway .

Plug-in : A small, device-specific software application or wizard provided by a manufacturer intended to add value to the product.

TCP/IP : The acronym for transmission-control protocol\Internet protocol, the common underlying protocol spoken by all devices and applications on the Internet.





No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
Each year, a panel of Control Engineering and Plant Engineering editors and industry expert judges select the System Integrator of the Year Award winners in three categories.
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Controller programming; Safety networks; Enclosure design; Power quality; Safety integrity levels; Increasing process efficiency
Additive manufacturing benefits; HMI and sensor tips; System integrator advice; Innovations from the industry
Robotic safety, collaboration, standards; DCS migration tips; IT/OT convergence; 2017 Control Engineering Salary and Career Survey
Featured articles highlight technologies that enable the Industrial Internet of Things, IIoT-related products and strategies to get data more easily to the user.
This article collection contains several articles on how automation and controls are helping human-machine interface (HMI) hardware and software advance.
This digital report will explore several aspects of how IIoT will transform manufacturing in the coming years.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Infrastructure for natural gas expansion; Artificial lift methods; Disruptive technology and fugitive gas emissions
Mobility as the means to offshore innovation; Preventing another Deepwater Horizon; ROVs as subsea robots; SCADA and the radio spectrum
Future of oil and gas projects; Reservoir models; The importance of SCADA to oil and gas
Automation Engineer; Wood Group
System Integrator; Cross Integrated Systems Group
Jose S. Vasquez, Jr.
Fire & Life Safety Engineer; Technip USA Inc.
This course focuses on climate analysis, appropriateness of cooling system selection, and combining cooling systems.
This course will help identify and reveal electrical hazards and identify the solutions to implementing and maintaining a safe work environment.
This course explains how maintaining power and communication systems through emergency power-generation systems is critical.
click me