basic plc part i -introduction to plc

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Welcome to PLC And CX-Programmer Training

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Basic PLC Part I -Introduction to PLC

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Page 1: Basic PLC Part I -Introduction to PLC

Welcome to

PLC And CX-Programmer Training

Page 2: Basic PLC Part I -Introduction to PLC

Course Contents

•Introduction of PLC

•System Configuration

•Features & Function

•Unit Specification

•Basic Command with Basic Programming method.

•Exercise With Application

Page 3: Basic PLC Part I -Introduction to PLC

Introduction: Control System-Control Panel

Start & StopOperation

Page 4: Basic PLC Part I -Introduction to PLC

What is inside the control panel?

Contactors, relays, timers & countersin the control panel

Page 5: Basic PLC Part I -Introduction to PLC

Control System: Control System: InputInput

Flow Rate

Float Level

Oxygen Level

Page 6: Basic PLC Part I -Introduction to PLC

Control System:Control System:OutputOutput

Motor pump

Valve

Mixer

Page 7: Basic PLC Part I -Introduction to PLC

Conventional Hardwire Logic

Page 8: Basic PLC Part I -Introduction to PLC

Hardwire logic control circuit

Relay 1StartStart StopStop

Relay 1

PumpTimer

TimerRelay 1 Solenoid

Page 9: Basic PLC Part I -Introduction to PLC

Conventional Relay Control Panel

Page 10: Basic PLC Part I -Introduction to PLC
Page 11: Basic PLC Part I -Introduction to PLC

A solid-state device used to control machine or process operation by means of a stored program and feedback from input and output devices.

Introduction to Omron CQM1 PLCIntroduction to Omron CQM1 PLC

Page 12: Basic PLC Part I -Introduction to PLC

What PLC can do?What PLC can do?Sequence ControlSequence Control

Relay 1StartStart StopStop

Relay 1

PumpTimer

TimerRelay 1 Solenoid

Relays

Timers & Counters

Page 13: Basic PLC Part I -Introduction to PLC

Sophisticated ControlSophisticated Control

+-x/

21

3 45

Prod Pass RejectAA 33 4BB 27 3CC 43 8

Arithmetic Operation

Analog ControlInformation Handling

Page 14: Basic PLC Part I -Introduction to PLC

Supervisory Control

PLC

Computer

PrinterFA

Network

Process Monitoring

Pager

Page 15: Basic PLC Part I -Introduction to PLC

PLCPLC HardwireHardwireLogicLogic

Page 16: Basic PLC Part I -Introduction to PLC

Control DeviceControl Device

Specific Purpose

General Purpose

Wired LogicWired Logic PLCPLC

Control sequence isControl sequence isfixed for one designfixed for one design

Control sequence can beControl sequence can bechanged from time to timechanged from time to time

without rewirewithout rewire

Page 17: Basic PLC Part I -Introduction to PLC

PLCPLC

Control ScaleControl ScaleSmall & Medium Medium & Large

Wired LogicWired Logic

Page 18: Basic PLC Part I -Introduction to PLC

Relay 1

StartStart StopStop

Relay 1

PumpTimer

TimerRelay 1 Solenoid

LD STARTOR RELAY 1AND NOT STOPOUT RELAY1OUT SOLENOIDLD RELAY 1TIM 000

#0020LD TIM 000OUT PUMP

Modification Modification The same example for PLC control system

Page 19: Basic PLC Part I -Introduction to PLC

The same example for PLC control system

Only need to change the ladder program

Relay 1

StartStart StopStop

Relay 1

PumpCounter

SolenoidRelay 1

Counter#30

StopStop

LD STARTOR RELAY 1AND NOT STOPOUT RELAY1OUT SOLENOIDLD RELAY 1LD STOPCNT 000

#0030LD CNT 000OUT PUMP

Modification Modification

Page 20: Basic PLC Part I -Introduction to PLC

Wired LogicWired Logic PLCPLC

Delivery PeriodSeveral days Almost Immediate

Page 21: Basic PLC Part I -Introduction to PLC

MaintenanceMaintenanceDifficult Easy

LED indicator

Wired LogicWired Logic PLCPLC

Input/output connectorcan be remove easily

without using screw driver

ProgrammingConsole

Page 22: Basic PLC Part I -Introduction to PLC

Economic EfficiencyAdvantage on

small scaleAdvantage onsmall, medium

and large

$$$$$$Wired LogicWired Logic PLCPLC

Page 23: Basic PLC Part I -Introduction to PLC

Power ConsumptionPower Consumption

High Low

0.2 Amp> 2 Amp

Wired LogicWired Logic PLCPLC

Page 24: Basic PLC Part I -Introduction to PLC

•Fast project implementation time•Low operating cost•Increase productivity•Reliability•Easy maintenance

ConclusionConclusion

Page 25: Basic PLC Part I -Introduction to PLC

Applications Of PLC

Material Handling Packaging Machine Pump Control Water Treatment Paper & Pulp

Industries Cement

Manufacturing Electroplating

Plants

Power Plant Disk Drive

Manufacturing Traffic Light System Car Manufacturing Building Automation IC Manufacturing Amusement Park

Control