Norm Workshop (Pdo - Oman) 21 - 24 February 2005 TIM ELEY - SCOTOIL GROUP plc, ABERDEEN
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Transcript of workshop PLC
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BASIC THEORY
Knowledgeable about Alpha Mini PLC
Mini PLC is a simple Alpha formed with small size and designed for use
in homes, offices and factories that require adequate controls are flexible and
controls the general purpose microprocessors that are designed to meet the
practical demands in the field of automatic industrial system, instead of electrical
mechanical system formed the backbone of the system control strategy or a
complex process, therefore, to the present knowledge of the circuit using a relay
system remains a ery important basic and necessary in the work of the mini!
programming PLC Alpha" Alpha Mini PLC works by receiing data from input
deices are switches, buttons, sensors, and so forth" Changes in input tools will
proide mini!PLC signal on the Alpha is the next logical that a program stored in
memory, the input conditions will be cooked by the Alpha Mini PLC further
orders of the inputs will be transferred by mini!PLC keoutputnya Alpha which can
then be used to drie the machinery or a production process flow"
Alpha Mini PLC has the ability to work in conditions of high temperature,
conditions of high humidity, the influence of ibration and noise conditions and
the surprises that arise by machines or other electrical equipment"
#asically Mini PLC and PLC has some are using both similarity" $hat%s using
logical "$his is the example of $he logic control in that tools &
Logika 'elay (Ladder) Alpha Programs information
A*+
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*A*+
'
*'
-'
*$
$able .". Conersion to Ladder Logic /ates
0imilarly Mini PLC works by receiing data from input deices are
switches, buttons, sensors, and so forth" Changes in input tools will gie a signal
to the Mini is a PLC which is the next logic of a program stored in memory, the
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input conditions will be processed by the Mini PLC, subsequent orders of the
inputs will be transferred by mini PLC keoutputnya which can then be used to
moe machines or a flow control process" 1or more details of a mini PLC block
diagram can be described as follows &
Peralatan
input
Modul
input
CPU
Memori
unit
Komputer Front Panel
Keys
Catu daya
Terminal
output
Peralatan
output beban
1igure 2". #lock diagram of configuration Mini PLC
#esides, the industries that use the Alpha mini PLC, can also expect
adantages from the use of mini!PLC Alpha as follows&
." Can work with quite safe, reliable, and flexible"
2" 3asy to change the program or from the circuit control rancangaan"
4" +oes not require a lot of wiring, saing costs and simplify wiring"
5" 3asy in programming, because it is designed dengaan language understood
by many people"
6" 3asy to monitor and the location of errors menentukaan eent of
interference with the control circuit, so the time saed for it big enough"
Mini PLC part o the alpha
!" Central pro#e$$ing unit %CP&'CPU is the brain to store and process the data set from the control
software has deprogram from the PC (personal computer)"
$he main function of the CP7 to do all settlement decisions are logical,
next formed into opersi!operation as it has been programmed by the user"
(" Module Input)Output
Module input 8 output functions to conert signals coming from input
deices into oltage quantities with low leel so that it can be processed by
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the CP7!sinyaal signal with a certain leel to control the machine or
equipment"
3ach input and output module has a separate power supply" #ig power
supply depending on the specifications of alpha mini PLC itself" 7ssually
input power supply in the form aailable +C output oltage with a low leel
is used only as a mini!PLC input alpha, while output has its own power
supply in accordance with the output deices"
1or capacity input 8 output depends on the type of alpha mini PLC" 9f
the addition of input 8 output by using input 8 output extensions that hae been
adapted to the PLC used"
#asically the relationship of input 8 output can be seen in the block
diagram below&
*" +a#ilitie$ , +a#ilitie$ at Alpha PLC
9n planning and designing control systems for production processes
by using the Mini PLC, to note the rules that apply to the Mini PLC systems,
particularly those inoling the facilities proided are &
." +ata 8 code input and output Mini PLC"
2" +ata 8 Code :ey 1unction"
4" +ata 8 1unction code logic"
5" +ata 8 code block function"
*ew mini PLC can function as a tool of control, if the facilities
proided aboe are arranged in such a way according to the needs of the
control system" $o generate the control system so it can work in accordance
with the desired power required high creatiity, training, and experience of a
4
Peralatan
Input :
- saklar
- sensor
- tombol
- Dll
Modul
input
Catu
Daya
CentralProcessing
Unit(CPU )
Modul
output
Catu
Daya
Peralatan
output:
- kontaktor
- relay
- alarm
- Dll
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control system designer, so that the facilities hae been proided by the Mini
PLCs can be used optimally"
-" Code Input ) Output Mini PLC
9n general, all types of Mini PLC always included books manuals as
guidance on data 8 code from the input 8 output, data 8 code help relay,
programming instructions and ways of operating the deice through the
terminal or computer programming"
+ata 8 code input 8 output Mini!;M' PLC AL!A from M9$07#90, =?,
+ata or code input 8 output modules are connected with the equipment
98 outside, so the commands from external input deices can be understood
by the M9*9 PLC in accordance with the data 8 code that has been
determined"
." Code Ke/ +un#tion
Consists of &
:ey *ame :ey *umber :ey 1unction
:=.
7sed to option menu, the data
confirm, strengthen the manual
input of the monitor function
:=2
$o cancel the operation, moing to
another program or leel, moe to
another menu
:=4
$o connecting (add function block)
to strengthen the input alue, or
moe to a program or menu
:=5
$o decide or remoe the function
block, or moe to a program or
menu
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:=60crolling LC+ layers on the menu
option
:=;0crolling LC+ layers on the menu
option
:=>Moe to the right on the LC+ layer,
1# ump program or command
:=?Moe to the left of the LC+ layer,
1# ump program or command
0" Mini PLC Progra11ing Alpha
Mini PLC in order to work properly, it should follow the following steps &
." +etermining the ob description of the system is complete"
2" +etermining the components of 9 8 to be connected to the terminal 9 8
Mini PLC"
4" Make a series of controls in the form of ladder diagram"
5" 9f using a
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#oolean instructions for executing functions of each input, with
a maximum input number 5" inside there are logic gates, so we
can set the desired output depends on the formula proided" 9f
the formula is gien only A*+, the icon will turn into #oolean
A*+ icon"
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Fhen the input signal then the output will be *, this situation
will continue to be maintained een if the input is 11, if the
input it clear in *, the output will be 11" 0et ! 'eset
function similar to the 0elf!
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= = = = =
Multiplication input A*+ gate, output will be * if all inputs *
and if one of the four input or output 11 input will be 11" A*+ logic
could also be analogous to a relay contact connections are installed in
series"
(" OR
$able Logic
9nput . 9nput 2 9nput 4 9nput 5 utput
.
=
=
=
=
.
.
=
=
=
.
.
.
=
=
.
.
.
.
=
.
.
.
.
=
' gate is the sum of input, output will be * if one of its inputs
*, but if all of its inputs the output 11 " r it can be said relations
contacts are parallel *"
*" 7OT
$able Logic
9nput . utput
.
=
=
.
utput will be * if the input 11 and ice ersa" r it could be
analogous to the *C relay contacts"
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-" 8OR
$able Logic
9nput . 9nput 2 utput
.
=
.
=
.
.
=
=
=
.
.
=
utput will be * if one of the inputs are *, if both input * or
11 the output 11"
." 7OR
$able Logic
9nput . 9nput 2 9nput 4 9nput 5 utput
.
=
=
=
=
.
.
=
=
=
.
.
.
=
=
.
.
.
.
=
=
=
=
=
.
*' gate is the output of ' gate on the right note" 9f all inputs
are 11 the output will be *, and if one input or all inputs * then the
output will be 11"
0" 7A73
$ablel Logic
9nput . 9nput 2 9nput 4 9nput 5 utput
.
=
=
=
=
.
.
=
=
=
.
.
.
=
=
.
.
.
.
=
=
.
.
.
.
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*A*+ gate is a gate thatGs *$" 9f all inputs * then 11 output, and
ice ersa"
5" Appli#ation E9a1ple$ &$ing the Alpha #ontroller$
a" Operation lo#4ing rela/$ %$el,holding rela/'"
3xample programs using mron PLC &
9f desired alpha program in the PLC mron PLC program aboe can be
changed into a model program like the image below &
b" Mode$ o operation (
peration simple 9nterlock work with mron PLC &
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9f desired alpha program in the PLC mron PLC program aboe can be
changed into a model program like the image below &
:ORKSHOP PRO;ECT
:AR7I7< SYSTEM I7 BARRA
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water in barrage is full, many dangerous can come to our home" Like see the
example like in situ gintung one years ago" Fhen many people still fall asleep, the
flood has come without permission because the barrage is broken down" Many
lifes gone and we ust see that disaster"
0o, to aoid the same disaster in this country" 9 try to make the system that
can preent the disaster could repeat" $hat system is $he warning system in
barrage 8 +AM with Alpha Control" Fith this system we can know when the
water leel in barrage touch the wary out leel" Fe can go out from our house and
find the safety places before the disaster comin%" #ut maybe we should still in
home, because with this system, the water will be drying lonely and back to the
normal leel because when the water touch the wary out8dangerous leel the
buzzer will be on and warned us the water leel is in dangerous leel, and the gate
will be open automatically to drying the water" $he gate can open automatically or
manually because we can chose the operating system"
+LO:CHART
13
RELAY 1 = ON
LAMPU 1 = ON
START
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3rawing Plant
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Li$t O Material
*o Material 7nit Jolume
I In$tala$i Panel
MC# 4 Phase pcs 2 :ontaktor pcs 5
$hermal oer load pcs 2
Line up terminal 5mmpcs
2>
Line up terminal ;mmpcs
4
3nd plate 5 mmpcs
2
3nd plate ; mmpcs
2
Firing chanel M 2
Profil g M .
Profil c M 2
+in profil M 2
Lamp indicator redpcs
.
Lamp indicator greenpcs
..
Main switchpcs
.
Push button nopcs
4
*KA1.,6 mm red M 5 *KA1.,6 mm blue M 5
*KA1 .,6 mm yellow!green M 5
1use pcs 5
II In$talation Motor
0trip conectorpcs
2
Motor 4 phasa (+L)pcs
2
#ahan dan meterialpcs
.
Plat alumunium pcs 2
0hoe cable +oz 5
0piral cable +oz 2
0krup contersink +oz 5
Cable
*KA .,6 mm red M 6
*KA.,6 mm blue M 5
*KA .,6 mm yellow!green M 5
*KA1.,6 mm red M 5
*KA1.,6 mm blue M 5
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*KA1 .,6 mm yellow!green M 5
Identii4ation I ) O
*o 9nput
Alpha
$erminal
. erload Motor . 5
2 erload Motor 2 4
4 erload Motor 4 5 2
5 'eset 8 ff Alarm .
*o utput
Alpha
$erminal
. Alarm .
2 #uzzer 2
;OB 3ESCRIPTIO7
! Fhen the water touch the electrode . , the relay . will be work and the
lamp . (4rdalert) will be *"
! Fhen the water touch the electrode 2, the relay 2 will be work and the
lamp 2 (2ndalert) will be *"
! Fhen the water touch the electrode 4, the relay 4 will be work and the
lamp 4 (.stalert) will be *"
! Fhen the water touch the electrode 5, the relay 5 will be work and the
lamp 5 ( Fary out leel) will be *"
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! $hat means the buzzer . will be * and warned the people water in
wary out leel"
! Fhen the water touch the electrode 6, the relay 6 will be work and the
lamp 6 will be *"! Fhen the relay 6 *, $he ralay will be actiated the contactor .,2,4
and 5 to make the motor . and to work to open the gate"
! Fhen the gate was open the water will drying lonely"