HVAC Control in the New Millennium.pdf - HVAC.Amickracing

HVAC Control in the New MillenniumFigure 5-6. VenturCom’s DCX is a new architecture that can providefast, deterministic data transfers under OPC.cept by developing component libraries that model gauges, dials andthermometers.This is just a taste of what is to come. There will be much more ofthese software components and component libraries that model controlsand control systems.User interfaces will resemble process dashboards using a library ofcomponents that model pumps, proportional-integral-derivative (PID)loops, tanks and other system blocks. Systems integrators who have anexpertise in a particular industry can capture that expertise in a componentsoftware product.There is a trend to develop systems in an iterative way that reusescomponents and maintains flexibility throughout the system’s life cycle.This is called rapid application development. It depends on developingiteratively to reduce risks by exposing them early and emphasizes the©2001 by The Fairmont Press, Inc. All rights reserved.