RAJASTHAN TECHNICAL UNIVERSITY, KOTA

HOD of EIC Deptt.SEMINAR CO-ORDINATOR

IntroductionDCS(Distributed Control System)- DCS is a

dynamic control system ,in which controllers are distributed throughout the entire system is connected by a network

DCS DisplayThe output of process are is shown at

different of display

Types of display

Trend display

Group display

Schematic display

Detail display

Standard or user defined display

Alarm Display

Loop display

Trend DisplayUsed for analysis the condition of plant in

detail and measure unwanted signals

Group displayDemonstrate the operating parameters of

control loops such like feed water, drum level, steam flow , pressure

Schematic displaySchematic display shows the pictorial view of

plant.

Detail displayProvides appearance of all parameters related

to the particular point of process

Standard displayIts like a block diagram of process plant who is

made by technician

Alarm Display

It show the emergency situation of process plant

Loop control

Loop control display show the closed loop display of process plant

Continuous Process DisplayIt is used to show the what process is runing

at the current stage

Graphic DisplayIts is a pictorial view on screen so that the

operator realize the process by bar graphs

Batch Display

Show the status of process modules related to a particular batch

Overview Display

The operator looking at an overview display , can see at a glance the condition of all the in a number of operating areas

Advantage and disadvantage

Advantage Disadvantage

Quality control Demand skillful operators

Reduced installation and wiring costs Operators have alert and careful while processing

Good operating efficiencies It is closed loop control when one component is failure it can affect on whole system

Flexibility- each part can be alter by software

Complex and expensive

Manoj Kumar Sharma