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General Introduction to

CourseCODE: MET 06214

PROGRAMMABLE LOGIC

CONTROLLERS

Lecture One

Prepared by;

Kamoleka, M

MSc, Renewable Energy

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General Introduction to Course Cont

Pre-request odule: MET 06114

!u"er o# credits: 6

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General Introduction to Course Cont

$u" ena"lin% outcoes: Describe programable logic controllers PL!s"

#denti$y some samples o$ PL!s a%ailable in t&e market

Describe application o$ a PL!

Produce basic ladder logic diagrams #denti$y di$$erent types o$ timers

#denti$y di$$erent types o$ counters

Describe Master !ontrol Relays

#mplement t&e basic ladder logic diagram

'pply programmable logic controllers PL!s" in industrial

control

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&e#erences

[1] Bolton W. Mechatronics 2 ed. Person education Asia

[2] Kiyoali Kobayoshi Advanced Technics Develo!ent "entre

Mechatro 1# 2# and 3

[3] $en%antara!an, C.R&unda!entals o' Mechatronics (an

)

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Contacts 'our

E(ent 'ours)*ee+

Lecture (

Practical (

*

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Inte%rated Met,ods o# ssessent

+

Continuous ssessent't least two (" tests ()*

't least two (" Practicaltests

+)*

End o# $eester E.aination&eoretical e-amination ()*

Practical e-amination +)*

Total 100/

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Programmable Logic Co!roller"# $e%ii!io accor&ig !o NEMA "!a&ar& ICS'(1)*+

A di,itally oeratin, electronic aaratus-hich uses a ro,ra!!in, !e!ory 'or the

internal stora,e o' instructions 'or

i!le!entin, seci'ic 'unctions such aslo,ic# seuencin,# ti!in,# countin, and

arith!etic to control throu,h di,ital or

analo, !odules# various tyes o' !achinesor rocess.

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Programmable Logic Co!roller"

PLC-" Are ... (i!ilar to a Microcontroller0

Microrocessor Based

nboard Me!ory 'or (torin, Pro,ra!s

(ecial Pro,ra!!in, an,ua,e0 adder o,ic

nut4utut Ports

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6

PLC-" Are...

Dissi!ilar to Microcontrollers0

ntended 'or ndustrial Alications 4 Desi,ned to inter'ace -ith "ontrol

7elays

8!hasis on Ma9i!u! 7eliability

Programmable Logic Co!roller"

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Programmable Logic Co!roller"

AM87"A: 1. Allen Bradley

2. ;ould Modicon

3. Te9as nstru!ents

). ;eneral 8lectric*. Westin,house

+. "utter Mouller

3. &esto

). Tele!echaniue

eadin, Brands ' P"

1?

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Programmable Logic Co!roller"

@APA:8(8 1. Toshiba

2. !ron

3. &anuc). Mitsubishi

eadin, Brands ' P"

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Programmable Logic Co!roller"

Area" o% Alica!io

Manu'acturin, 4 Machinin,

&ood 4 Bevera,e

Metals

Po-er

Minin,

Petroche!ical 4 "he!ical

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Programmable Logic Co!roller"

PLC Si/e

./ SM'LL 0 it co%ers units wit& up to .(1 #2O3s and memories up

to ( Kbytes/

0 t&ese PL!3s are capable o$ pro%iding simple to

ad%ance le%els or mac&ine controls/

(/ MED#4M 0 &a%e up to ()51 #2O3s and memories up to +( Kbytes/

+/ L'R6E 0 t&e most sop&isticated units o$ t&e PL! $amily/ &ey

&a%e up to 1.7( #2O3s and memories up to89)Kbytes/0 can control indi%idual production processes or entire

plant/

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Programmable Logic Co!roller"

Ta "e& !o Mi2 T3o Li5i&"

A

B

C

S

MOTOR

TIMER

LOAT S7ITC8

SOLENOI$S

SOLENOI$

1 (MINTE

1)

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Programmable Logic Co!roller"

A tan% is used to !i9 t-o liuids. The control circuit oeratesas 'ollo-s0

1. When the start button is ressed# solenoids A and B

ener,ie. This er!its the t-o liuids to be,in 'illin, the

tan%.

2. When the tan% is 'illed# the 'loat s-itch tris. This de

ener,ies solenoids A and B and starts the !otor used to

!i9 the liuids to,ether.

3. The !otor is er!itted to run 'or one !inute. A'ter one

!inute has elased# the !otor turns o'' and solenoid "

ener,ies to drain the tan%.

Ta "e& !o Mi2 T3o Li5i&"

1*

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Programmable Logic Co!roller"

Ta "e& !o Mi2 T3o Li5i&"

). When the tan% is e!ty# the 'loat s-itch deener,ies

solenoid ".

*. A sto button can be used to sto the rocess at anyoint.

+. ' the !otor beco!es overloaded# the action o' the entire

circuit -ill sto.

/. nce the circuit has been ener,ied it -ill continue to

oerate until it is !anually stoed.

1+

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Programmable Logic Co!roller"Ma9or Comoe!" o% a Commo PLC

1/

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Programmable Logic Co!roller"

Ma9or Comoe!" o% a Commo PLC15

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Programmable Logic Co!roller"

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I:O Mo&5le" nut Modules0 nut (i,nals can be A" or D"# Analo, or

Di,ital

utut Modules0 ututs are either A" or D" Analo,

(i,nals CAlthou,h it is ossible to "onstructE Di,italututsF

Modern P"Es have 89ansion Ports to ncrease the

:u!ber o' Available nuts and ututs

Programmable Logic Co!roller"

2?

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E2amle" o% I:O Sigal"

nuts0 Pushbutton C8ner,iin, an nutF

7elay "ontact utut

D" $olta,e evel

Di,ital o,ic (i,nal CG*$ or ? $# etcF

ututs0

2) $ ac

12? $ ac

12? $dc

etcetera

Programmable Logic Co!roller"

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Programmable Logic Co!roller"

PO7ER SPPL;

Provides the volta,e needed to run the ri!ary P" co!onents

I:O MO$LES

Provides si,nal conversion and isolation bet-een the internal lo,ic level si,nals

inside the P" and the 'ieldEs hi,h level si,nal.

PROCESSOR

Provides intelli,ence to co!!and and ,overn the activities o' the entire P"

syste!s.

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Programmable Logic Co!roller"

PROGRAMMING $E

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Programmig $e=ice

Also %no-n as0

ndustrial Ter!inal C Allen Bradley F

Pro,ra! Develo!ent Ter!inal C ;eneral 8lectric F

Pro,ra!!in, Panel C ;ould Modicon F

Pro,ra!!er C (uare D F

Pro,ra! oader C decu!i F

Pro,ra!!in, "onsole C Keyence 4 !ron F

Programmable Logic Co!roller"

2)

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Programmig $e=iceTyes0