Automation With Plc and Scada Presented by Lokesh Bhasin

8/10/2019 Automation With Plc and Scada Presented by Lokesh Bhasin

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What is Automation ?

the act of implementing the control of equipment withadvanced technology; usually involving electronic

Hardware. "automation replaces humanworkers by machines"

Increasing Productivity

Increasing QualityReducing Cost

Increasing Safety in working conditions

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Why SCADA?

Previously without SCADA software, an industrialprocess was entirely controlled by PLC, CNC & PIDhaving programmed in certain codes.

These codes were either written in assembly language orrelay logic without any true animation of process running.

It is always easy to understand the status of the process if

it is shown with some animations rather then writtencodes.

Hence SCADA software came to existence and withsome exclusive features it became internal part of

automation system. 4


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Features of typical SCADA software

Dynamic process graphic

Real-time and Historical trending

Alarms

Recipe Management

Security

Device connectivity

Script for logic development

Database connectivity

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Dynamic Process Graphics


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Real-time & Historical Trends


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Alarms Every plant needs proper monitoring and control of

the process parameters. Alarms represent warnings of process conditions that

could cause problems, and require an operatorresponse


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Recipe Management

The recipe management is facility used for maintainvarious recipes of different products and implement iton the process.

The recipe can be stored in a single server and it canbe fetched by any client server from any area to runthe process.


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Security

Every SCADA software has various levels of securityfor securing the application by avoiding unauthorizedaccess.


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Creating An Application

InTouch

Steps in creating an application

includes:

Create an application

Create the window in which

application will run

Creating graphics images of different

parts of our process

Breathing life into graphics

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Creating An Application


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Creating A New Window


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Creating Graphic Objects


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Breathing Life To Graphics

en ra ey : sv ew


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en ra ey : sv ewSiemens : WinCC

GE Fanuc : Cimplicity

KPIT : ASTRA

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PROGRAMMABLE LOGIC

CONTROLLER

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A l len B radley : Micrologix


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The PLC is programmed interface between the field I/p

element like limit switches, sensors, push button and thefinal control elements like control valves, hooters etc.

PLC consist ofPower Supply

Input Module

CPU with Processor and Program memory

Output module

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CPU

External Power

Supply

I/O Modules

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I nput Module Placed in the field

Automation : Advanced Technology

F ield Bus Scanners

F ield Cabling

Control PanelControl Hardware

SCADA Software

Communication Cable

F ield Bus Network

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Advantages of PLCs

Reduced spaceEnergy saving

Ease of maintenanceEconomicalGreater life & reliabilityShorter project time

Easier storage, archiving and documentation

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CPU memory divided in two parts:-

Data Files

Program Files

Data files:-

System 0 -Manufacturer programSystem 1 -Reserve fileLadder 2 -Main user file

-ladder 3 to 255 forsubroutine program

AB PLC CPU Memory Organisat ion

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Program files:-0 -Output - O -- o/p status1 -Input - I -- i/p status

2 -Status - S2 -- CPU data3 -Binary - B3 -- Flag(memory bit)4 -Timer - T4 -- Timer status5 -Counter - C5 -- Counter status

6 -Control - R6 -- Specific data7 -Integer - N7 -- whole no. data8 -Float - F8 -- Decimal no.data

9 to 255 used to create new Program Files

AB PLC CPU Memory Organisat ion

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: . /

I : 1 . 0 / 0 (0 to 15)I : 1 . 1 / 0 ,,O : 2 . 0 / 0 ,,O : 2 . 0 / 0 ,,

FILE

LETTERSLOT

NO

WORD

NO

BIT

NO

AB PLC Add ress ing I/O

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: /

B3 : 0 / 0 (0 to 15)B3 : 1 / 0 ,,. . .. . .

. . .B3 : 15 / 15

FileLetter

FileNumber

WordNumber

BITNumber

Add ressing B INARY (Flag )

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TIMER :- T4:0 . T4:255(as per PLC)COUNTER :- C5:0. C5:255CONTROL :- R6:0. R6:255INTEGER :- N7:0 N7:255FLOAT :- F8:0. F8:255

Address ing of Programm ing

Instruct ions

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IF input 4AND input 5have power

THEN energize output 0

| |I/4

| |I/5

( )O/0

Logical Continuity

T T T

On

Logical AND Construct ion

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PLC Signal Flow

Programming Terminal

O:0/7

O:0/7

O:1/5

Output Devices

Output ModulesProcessor MemoryInput Module

Input Devices

Ladder Program

O:0/7

O:1/5

I:0/6

I:1/4

O:1/5

I:0/6

I:1/4

I:0/6

I:1/4

DataInput

Image Table

Output

Image Table

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Types Of Timers

three types of timer is available :

1. TON

2. TOF

3. RTO

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Types Of Counters

two types of counter is available:

1.CTU

2.CTD

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Input Scan

Program Scan

OutputScan

START

During program scan, data in

input table is applied to user

prog ., prog . is executed and

o/p is updated accordingly.

Input terminals are read

and input status table is

updated accordingly.

Data associated withoutput status table is

transferred to o/p

terminals.

Plc Scan Cycle

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Scan Time

1. The completion of one cycle of the sequence is called-

SCAN CYCLE.

2. Time required for one cycle is called SCAN TIME.

3. There is inversely proportional relation between scan

time and efficiency.

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Sinking and Sourcing

SINKING

SOURCING

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COADING OF PROGRAM


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COADING OF PROGRAM

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Communication B/w rslogix and scada


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Communication B/w rslogix and scada

software.

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1.Automation and its usefullness and advantagesin industry to make process error free and

accurate.

2.Scada helps us for supervising the industry.

3.Learn how scada can control the whole process

of industry.

4.Get the knowledge of plc and its programming.

5.Learn the process of communicating between29


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TH NK YOU

Automation With Plc and Scada Presented by Lokesh Bhasin

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