trạm trộn nguyên liệu dùng plc s7300

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
TRƯỜNG ĐẠI HỌC
KINH DOANH VÀ CÔNG NGHỆ HÀ NỘI
KHOA CƠ – ĐIỆN TỬ
____________________________
ĐỀ TÀI ĐỒ ÁN
THIẾT KẾ ĐIỀU KHIỂN
TRẠM TRỘN NGUYÊN LIỆU D%NG PLC - S7300
ĐỒ ÁN TỐT NGHIỆP ĐẠI HỌC
( KHOA CƠ –ĐIỆN TỬ )
Hà nội - năm 2014
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CỘNG HÒA XÃ HỘI CHỦ NGHĨA VIỆT NAM
TRƯỜNG ĐẠI HỌC Độc lập – Tự do – Hạnh phúc
KINH DOANH VÀ CÔNG NGHỆ HÀ NỘI _____________________________
____________________________ Hà Nội Ngày …. Tháng …. Năm ….
BIÊN BẢN HỘI ĐỒNG BẢO VỆ ĐỒ ÁN TỐT NGHIỆP ĐẠI HỌC

 ! "# $%&'
()*+,





Kết luận




Hà Nội, ngày tháng năm 20…
THƯ KÝ CHỦ TỊCH CÁC UỶ VIÊN HỘI ĐỒNG
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MỤC LỤC
LỜI MỞ ĐẦU
 /#0/#12#34&!' 5-67 .8 9#7: 1;/<#/
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/D1 E4/F4GH#I8.2/#J8#./=KL/#8.L/G1M $1B1F
7 N#8. K#O P/@C<# 1< $ Q/"2//<#/ . $,R
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' 5-6!=>T;##J8#5#I 7$$U/9 V!8L/I4!$#3W
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I=>/#8./5   A=>#G" Z->' 5-64A #J8#0// $ 0/
#[/!&<1#D1!"2/T2 NTW7 FI;'-\ %-8KX-]  42
#0/#^ . F.6' ^#!^# . $ Q/"2/ .5B15-\ GF_1M/.
-845<` #a/=>#@[/ =42 NTW17 6!AL/,O=>#b-"#
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/?'#./=K17 642#5# Q=1#J8B15-\ GF_1M!& $1B1F#8.
 /B15-\  9#!=>#G"d/c#J8 D< =&/@ef4=>#/8.
 $4!^gThiết Kế Hệ Điều Khiển Và Giám Sát Thiết Bị Hệ phối liệu của
dây truyền sản xuất dược liệu”
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=>#G" =&/@e;\ #J8 D</5.[l1c%"#X/?'j!GU8# P8
6h4 . $T2d5Q/ $'<
f4_# C  #F4S D</5. =&/@e!#5# D<#0 /240



CHƯƠNG 1 : TỔNG QUAN VỀ PHẦN MỀM THIẾT KẾ VÀ MÔ PHỎNG WINCC
( WINDOWS CONTROL CENTER )
1 Tổng quan hệ thống ScaDa
$mmn1'h-!G <. Im@88m#B1G.oI $ Q/1
7 6/54G5! 1 ;'@PI$1,-8K!. P/L4pq-#SG]H/@^/
7: 1; 9#,4A/45<` !-1< 0/#0// $'$mm# .
' r'I7N4A/] 14H#27 5# 81R#5#T2#F4TN,#S#M1# M'
 ,#5#T217 6,#5#-A445<` 17 6!/54G5,# .N#5#
-A445<` 1  !B1FIc#0/<
mmI $ Q/17 6#Ob# [I#O` ' CTQ#8.!' D
# M'   =/IA#O` ;'-1/!' D17 6n' D4417 6,
 1 ;',I=1-P!_UIcGQI$1A-1/C4o\!;<O#O 65'H/=>#<1
#D1#J8 $ Q/i s' CTQ-' A4!W8 \ -2/mmI42 $
 Q/4]@t@/C/#M'!4]-2/7 #D N
Hình 1-1


1.1 Giới thiệu chung
unu@.vG. Ihh-w-1/C417 6-u@.vGo,
#1/#M'#5##0/#^' D446 NI;'42/8.@$17 6# A<-#5#
$1  #J8x# G.y =u@.vG!u@.vGzqqq /@i/#5#
GF' Y4 N7N/8.@$' ^#!^# .!;  !/54G5,u 12# H
A/mm!& P/# H#L/ P1 $1@ # .!$#17 6
x2 / P/b#64#J8uIb#` 4]O#O 6GU@^/42
#5# @t@/!&#5#' D44# 1Y!' D44#J8/=KGU@^/,A.
/8.@$/=Kw45<5'H/ 1#D1 "#N42#5# # ` _5# P/ 
#1/#M' $ Q/#O 6' 5-6H/@^/#J8 9 0/B18/8.@$4]#J8
u =42F/64]-2/ $ Q/

Hình 1-2
u7N >'#5#T`B1<N#J8 X/h4hGw#0/< /D1 /"
2/ .5B15-\ !x# G.yw#0/< /D1 /!$#' 5-6' D44
# .
/.7 FL/ `# H/# .!$#_C<@"/#5# $ Q/#OB1<40I&
 s7 5# 81,u#i#O 6@t@/`#  >'!& P/H/@^/#OB1<


40.#0/< =!$#`#  >'!& P/ $ Q/#M'#8.xf
nx81y8#1-/f_#1.<Gh4w $ Q/B1FIc!$# "# $GF_1Mo!
f{nfh-'-Gh{hG.1-#hI8/ou#a/#O 6GU@^/-#SG]B1<
40.#D1 K $ Q/->/?'#J8h4hG#O4b7 |'S- N/&
1.3 Các đặc điểm chính:
Sử dụng công nghệ phần mềm tiên tiến:
uGU@^/#0// $' D444& M KG"#2/5##J8h4hG
!x# G.y,/=K@[/#O 6<C4!&G"' 5-6#J8#0// $' D
444x# G.yI/=K@eD1
Hệ thống khách chủ với các chức năng SCADA:
/8<R $ Q/u#SG]X#O 6#1/#M'M#F#5## H#L/6
/=K@[/#O 67 ]2/#5#<1#D1 6 W' H#A'$#/9 P/ \
F n'#1-ho,#5##F T5.n8I8-4o,d W-A/ 5n-h@o,#5#T5.#5.n-h' o
#O 6@t@/=># NI;'
Có thể nâng cấp mở rộng dễ dàng từ đơn giản đến phức tạp:
uI424.@1Ih / $ Q/"2/ .5,!\ N,#O 6GU@^/O
64]-2/ $ Q/42#5# I  .ARS/FN' H#A'R $ Q/!&
4245<` /54G5& $ Q/ 145</54G5, 8< $ Q/#O#M1-?#
' C5!& 145<# JnGh-!h-o
O 6' 5-61} h.I~ !"##0// $' .b#R/<1#D1#0// $
x2I.A#5#4.@1Ih' D444]-2/W  =&/# .R/I.AH/@^/X
=>#' 5-6G•6/=K@[/# 9I"87 #D



Cơ sở dữ liệu ODBC/SQL đã được tích hợp sẵn:
SG]@PI$1<GT8Ghl%X=>#`#  >'G• /uM#F#5#@P
I$1!#M1 \  $ Q/!#5#@PI$1#J8B15-\ 17 6"S#I=1/P
 /#SG]@PI$1</=K@[/#O 6@t@/-1<#;'&#SG]@PI$1#J8
uTE/l%n-1#1-h@l1h-<%8/18/ho .b#n'h88T8Gh
.h#!<o"-1<#;'<# .' r'u# 8G€@PI$1!&#5#H/@^/
!#SG]@PI$17 5## A<-u@.vG
Các giao thức chuẩn mạnh (DDE, OLE, ActiveX, OPC):
5#/8.@$# 1Y =f!%f@[/# .!$## 1<6@PI$1R#5#
# =S/-\ # A<-u@.vG#a/I P/` L/#J8u5#
` L/ =m#!h*#. I!Gh-!h-!#Ih#a/=>#`#  >'G•
Ngôn ngữ vạn năng:
u=>#' 5-6@[//0/PI;'-\ # 1Ymw
Giao diện lập trình API mở cho việc truy cập tới các hàm của WinCC và dữ liệu:
M#F#5#4.@1Ih#J8u1#O/8.@$4]# ./8.@$I;'-\
@[//0/Pn' /-844/h-y8#h,wmo1O#O/ ~8I/=K
@[/#O 6`#  >'#F#M1 \ #J8u!#5# 4 "# $n-14ho!.
42# =S/-\ #J8/=KGU@^/
Cài đặt phần mềm với khả năng lựa chọn ngôn ngữ:
 D44u=># N7N-#SG] 1/0/P/ ~8I,/=K
@[/#O 6# 9N/m , 5',H# 8< ;4# `#5#/0/P# C15I4
/0/PGU@^/5#/0/P<#a/#O 6 8<3-"#1<N
Giao tiếp với hầu hết các loại PLC:
u#OG•#5#7 -1< 0/6/8.N'!&#5#I.A%#J8
h4hG =xm•‚ƒ‚•q•#a/ = 0/B18#5#/8. H## 1/ =


{„(,f 8< 4!.O,#5## 1Y 0/7 5##a/#O

G• =I P/I"8# 9 8<' DT3G1/
WinCC như một phần tử của hệ thống Tự động hoá tích hợp toàn diện
(Totally Integrated Automation-TIA):
uO/!8-i =#U8G3 $ Q/!I' DU-1/C4#J8 $O
#a/# ` I' DUmm / $ Q/ƒ#J8h4hG
1.4 Các cấu hình hệ thống cơ bản:
u#O 6 Z->#5##M1 \  $ Q/R M'N#8.,!`@^ = /
#5##M1 \  =G81
w $ Q/17 6@[/4245<` n/w1Gh-G<Gh4o
w $ Q/17 6@[/ 145<` nx1Iw1Gh-G<Gh4o
w M1-?#Ih‚h-!h-#O@"' i/
w M1-?# $ Q/' C5!& 1-A4# JnGh-!h-o
1.5 Các chức năng cơ bản
1.5.1 Giao diện người sử dụng:
… 0/' ^ 12#!.#5#H/@^/ s 8<I&,S/F 8<' H#A',@[/
u8#O 6 N7N-8#5#/8.@$# ./=KGU@^/6' ^#!^# .!$#
17 6!Q=1 .5B15-\ GF_1M
u#O42T2#0/#^ N7N/8.@$d .A4A  =#5# IT._,
#5#. I,#5#*=>#b@t@/-#J8G3 N7N
8.@$/=KGU@^/# .' r' 6 WB15-\  2 .A/P8/=K1
7 6!B15-\ 17 642#5# I  .A!' ^ 12#!. 1#D1#J8B15
-\ 17 6x \ 17 6#O 6 6 $B15-\ #0// $42#5#
.#F ,B1-\ #0// $# `  .b#42#^4#0// $.O#D h.@†
u#O 6/  &#5#/5-W#J8#5#TN#a/ =!;<,O#a/#O
 6/  ;/< 5/, K/8,/=KGU@^/,/5-W#a!4&\ N@t


TN#J8 P/B15-\ #O` # M7W# ` #O 6=>#5A.IA' ^#!^# .
4^#`# ' C`# 
1.5.2 Quyền truy nhập hệ thống và công tác quản trị người sử dụng

u# ‡# .' r' P//=K=>#J<B1<-1<#;'!. $ Q/O
&ˆqqq4H#-1<#;'7 5# 81# .' r'' C# 8B1<-1<#;'!#8 $'
!. $ Q/]4H#27 5# 81x;7 Y1n'8GGv @o!/=KGU@^/
n1Gh-84ho_5#W B1<-1<#;'#J84Z/=K1<#a/#O 6=>#
W / ~8IA /B15-\ !;   $ Q/x2#0/#^#OI‰(Gh-
m@4G-8 Šnl1F-W/=KGU@^/o=>#@[/6 .F4X4^#`# <
l1<-1<#;'G‹ N $1I"#N1 K A# .' r'X7N ?#
1.5.3 Chuyển đổi ngôn ngữ sử dụng
x2!/0/P#O 6=>#_5#I;' /B15-\ #b6I4/0/P
GU@^/#J842@"5 /B15-\ !;  ,/=KGU@^/# ‡!$# M
# 12!.42 2' .A6 8<3/0/PGU@^/
1.5.4 Hệ thống đồ hoạ (Graphics System)
$ Q/d .A#J8u_UIcM#F#5#D1!.!D1-8 6 $-
4 \  /B15-\ !;  … FL/ 6 W 0/17 6@=&
@A/d .A=># "# $T]424.@1Ih# =S/-\ #O/9I-8' #G
hG/h-0/#^<#O 6#1/#M'#5##0/#^#OG• =
 5# \ !‹#J8#5#' DU1T61n =TS4,!8,2/#S,GI0o
 5#' `4, 2' .A, 8 -=>
 5#4 \ H/@^/!4 \  6 W
 5#Q=>/%f,m#!h*
 5#-=K/!.,-8
 5# 8 -A/ 5!#5# 6 W h. O4


 5#Q=>/X=># 8<36' [ >'!& 1#D1#J8/=KGU
@^/
/=K_C<@"/ $ Q/#O 6 6 $B1-\ #0// $44\ 1
7 6TE/d 98$#W / ~8#5#` # M#STF#J8#5#d .A = \
@5/ \  9#,41G|#,761 .8!L,#O 6=># "# $@t@/TE/#5#
GU@^/#5##0/#^ N7Nd .A#OG•

1.5.5 Hệ thống thông báo (Message System)
$ Q/ 0/T5.#J8u#1/#M' 0/D<J!#5#IZ!-A/
 5O# 1/ /B15-\  .A2/O 6 $#5# 0/T5.I?# $A
#a/ = /B157 H5# 0/T5.</?'/=K!;  G&4' 5 $-8
#5#G"#Q67 |#' ^#7W' K,-5 =>##5#G"#Q8#O 6"@.I"8# 9#5#
7 Q 0/T5.,#5# H A/ 0/T5.,#5#@A/ 0/T5.,#5#761 6 W
 0/T5.
x2 0/T5./d4#5#7 Q 0/T5.#O# H8#5#/5-W#J8B15-\ xZ
 0/T5.=>#G|'bA42$'nyIhoT8./d4ˆŒ H A/ 0/T5.
n4hGG8/h#I8GGhGo!ˆŒI.A 0/T5.n4hGG8/h<'ho# .4Z H A/ 0/
T5.1O#O/ ~8I#O 6' CT$#5# 0/T5. 12#I.A#F T5., |#
 ],T5.IZ, .A2/G8# H#L/,# .#5#![/7 5# 81#J8 $ Q/
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
Hình 1-3
1.5.6 Chức năng thu thập dữ liệu (Tag Logging)
 H#L/<=>#GU@^/6 1 ;'#5#@PI$1#J8B15-\ #0// $
6 6 W# ?/!I=1-P8#O 6"@.W @A/#5#@PI$17 I=1-P
# ?/5#/5-W#J8B15-\ =># 6 $TE/TF/-"#1<NnIh8TIho
!d W /!$#<8/%.///f@ # .' r'8 1 ;'@PI$1!T61
@t h.#5# 4841Q
5#' =S/' 5' 1 ;'!I=1-P@PI$1
w Liên tục theo chu kỳ (Cyclical logging): #5#/5-W=># 1 ;'42#5#
I^# h.# 17}! /-;" K/8
w Theo chu kỳ chọn lựa (selective logging):B15-\  1 ;'@PI$1# ‡T|
D17 _F<-842G"7$.O!7N ?#7 G"7$O# M4@H`
@^,B15-\  1 ;'@PI$1G‹N  7 #O P/G"7$G81
• 8<3/5-W#J842TN W' C
•5-W#J842TN=S/"!=>B1542/=j/# .-=&#
•A4264 K/8W -=&#

•5#2/#J8T' `4 .b## 12


•OI$ #J8 $ Q/45<` #M'#8. S
w Không theo chu kỳ (acyclical logging):G"7$T|D1' ^ 12#!.42
8< 1Tl15-\  1 ;'@PI$1T|D17 #5#T<# 1<6Rq
G8/ˆ 8</=>#IA
w Chỉ khi có sự thay đổi (archiving only when changed): $ Q/# ‡I=1-P
@PI$17 #OG" 8<3I& S42/5-WXW -=&#5#/5-W#J8
B?8-\ #O 6I=1-P /7 .I=1-Pn #hGG8I1hm-# !hGo 8<7 .
I=1-P=>#r5#7 .I=1-P<#O 6E4-![/ &$4#J8T2
 & 8<# H8-3#H/l15-\  1 ;'!I=1-PI^#i s
/=KGU@^/W -=&#7`# #j#J8#5#TF/ N1T2 &D<,#5#/5
-W#aG‹"2/TW_.5 =K/# Z# .#5#/5-W4&
Hình 1-4
1.5.7 Hệ thống báo cáo (Report System)
u#1/#M' $ Q/T5.#5.# .' r'8=8#5#@PI$1-8/M<O
#5#T5.#5.! H"#J8#5# 0/T5.,T5.#5.!!$#I=1-P#5# 0/T5.,T5.
#5.! .A2/#J8/=K!;  ,T5.#5.!#5# 0/T5.#J8 $ Q/,T5.
#5.#J8/=KGU@^/!T5.#5.@=&@A/!LTF!&W @A/1}c


 /#0/#^ N7N#5#T5.#5.n{h' hG/h-o,8#O 6B1W @A/
 H##J8T5.#5.=>#-8,GQ-8/!I"8# 945< /B15-\ O8
#a/#O 6B1W # 17}T5.#5.-842#5# "2/
5#T5.#5.#a/#O 6=>#-8 h.G"7$ 8< h.I$ #J8/=K!;
 8#O 6/5R/I.AT5.#5.# .#5#45<7 5# 81
Hình 1-5
1.5.8 Chức năng Text Library
 /h_%T-8-<,TA#O 6GU8#5#!LTF 6 $G" 8<3#J8#5#

4.@1Ih=>#GU@^/ /I?## A<# =S/-\ 5#!LTF!& P//0
/P7 5# 81#a/=>#W / ~8AC< P/!LTFG81O_1M-8=S/
H/!&!$#I"8# 9/0/PI?## A<# =S/-\ 
1.5.9 Hệ thống lưu giữ dữ liệu người dùng (User Archives)
(Gh-m-# !h-I42 $ Q/#SG]@PI$14/=K@[/#O 6"W #M1
\ # .OPI$1RB15-\ #0// $#O 6=>#I=1/PI^#-!
T61@t-"#1<NI?## A<# =S/-\ /.-8,O#i# ‡W !$#7NQ
6-8.3!&#5# NTW"2/7 5#1<#O/ ~8I#5##0/ H#, 0/
GQ /# =S/-\ #O 6=>#G.A F.,I=1/P!GU@^/ / $ Q/
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
Hình 1-6
1.6 Các bước cơ bản tiến hành thiết kế
1.6.1 Khởi tạo một dự án:
1.6.1.1 Khởi động WinCC:
67 ]2/u87`# # 12!.8-- 8 8G7T8- 9
Simatic\WinCC\Windows ControlCenter
1.6.1.2 Tạo một dự án mới:
6A.42@"54&8# 9File\Newx2 2' .AG‹4]-8# .' r'
_C<@"/42 Žh#4&
w  9/Ihw(Gh- Žh#•…A.42@"5S/=KGU@^/


1.6.1.3 Kết nối với PLC:
67 8T5.!$#7NQ!&42%4&TE/#5# 7`# # 12' F!.
Tag Management\Add New Driver   /  2'   .A  $  -8  8  # 9  # 9
‰xmƒ .#.I1h# Š
1.6.1.4 Tag và Tag Group:
 Tạo Internal tag:
 /8/488/h4h,7`# ' F# 12!.Internal Tag\New Tag*1M

$ 2' .A8/ 'h-hG# .' r'8 ;',761@PI$1#J88/
 Tạo Tag Group:
…`# ' F# 12I7NQ%!R8A. =-New Group\Properties
Of Tag Group, ;' 1'G81O M…
 Tạo External tag:
w…`# ' F# 12-7NQ%# 9New Tag\Tag Properties, ;'
,761@PI$1#J88/G81O M…
w M?hIh#64] 2' .AAddress PropertiesG81O# 9761@P
I$1# .8/,![/W8# ‡8/-1<#;'
1.6.2 Thiết kế giao diện đồ họa:
 /  #U8  G3  u  f_'I h-  8  7`#   ' F  # 12  !. Graphics
Designer\chọn New Picture,-8//8.@$d .ANewpld0.PdlG‹ $-8 /
#U8G3uf_'I h-6 N7Nd .A8#O 6 M'.1TIh# 12!.
TH#-8 !# 9'h Pictureu Z->42#0/#^4A !d .A,!
Z->42 =!$-MI&!#5# NTW#0// $'-MG 2/,8#O 6# 9
!h4-8GU@^/O42#5# @t@/
1.7 Truyền Thông Trong Môi Trường WinCC
-1< 0/ /x0-=K/u


1.7.1 Bản chất truyền thông giữa máy tính (PC) và PLC
F# M#J8B15-\ <=># 6 $ =GSdG81C<
\ ˆwƒ
1.7.2 Data Manager (Trình quản trị dữ liệu):
u88x88/h-B1FIc@PI$1n88T8Gho/=KGU@^/7 0/
 M<=>#-\ B1FIc@PI$1<-\ B1FIc@PI$1I4!$#!&@PI$1
=>#G -8Ru Žh#!=>##M /#SG]@PI•1#J8Project. Nó
quản lý các biến WinCC trong lúc chạy chương trình.M#F#5#/=KGU@^/
u' F<1#D1@PI$1R-\ B1FIc@PI$1]#5#@A/TNu5#
H/@^/</d4-8' # Runtime, Alarm Logging Runtime và Tag Logging

Runtime.
1.7.3 Các trình điều khiển truyền thông (Communication driver):
6# .u-1< 0/!&#5#761%7 5#,/=KGU@^/' FQ
-\ B1FIc@PI$1!&%-\ 17 6-1< 0//d442••%%,


4-1< 0//8.N'!&-\ B1FIc@PI$1-\ 17 6-1< 0/
#1/#M'#5#/5-WB15-\ # .WinCC Tag.
1.7.4 Đơn vị kênh (Channel Unit):
/†!..441#8.-!h- /8/x88/h-4h# H8` M42
1Twf-<1Twf-<#J8.441#8.-!h-</9I>!W7 xZS
!WA./8.N'!&428-@v8-h! =!;<!&Modul truyền thông #J8
/=K8' FW / ~8S!W7 x.@1I-1< 0/<=>#/5 / 2'
 .A<Gh48-84hh-G
1.7.5 Hardware driver:
-!h-7NQ' D#H/
1.7.6 Communication Processor (CP):
2_UIc-1< 0/
1.7.7 PLC: thiết bị PLC
l15 -\  -1<  0/ < #O  6 =># 40  F = G81 u 88
x88/h-B1FIc#5#u8/7  "#  1H/@^/u7 5# 81
n-um''I#8.o<1#D1#5#/5-WR88x88/h-0/!$##J888
x88/h- ;#5#8/<1#D1RB15-\ O "# $!$#< 0/B18-\
17 6-1< 0/X=>#`#  >' /u Žh#-\ 17 6
-1< 0/A./8.N'/P8u!B15-\ TE/#5# GU@^/S!W
7 #J8O /' DI&#5#-=K/ >',7NQ@"8-8-@v8-hNB15
-\ =>##bTE/#5# GU@^/42-\ 17 6-1< 0/
uGU@^/#5#6/U 0/$'<1#D1N%N'N/U#5#
/5-WB15-\ =>#<1#D1R#5# 0/$'=S/H/!IAu



ˆp‘’mmm
/<8< $ Q/mm=>#H/@^/-2/-X / D1 N#5#I~ 
!"##0// $'b#T$ /42GQI~ !"#G81
• $ Q/mm# .#5#-A4-2T0/,#5# 45<GF_1M_w4L/,
#5# 45<# NTN "#' Y4,=&#/F7 5
• $ Q/mm# . $ Q/!;# 1<6  Ic! / .5A#5#GC
T8<,TN#F/
• $ Q/mm/54G5#5#/7 .8Q/@e@D1,@e7 `
• $ Q/mm# . 45<=&#,_UIc# M F,#5#7 ._L/@D1
• $ Q/mm# . $ Q/' C' QI=&$
/.-8, $ Q/mm#i=>#H/@^/6/54G5!17 6
 /#5# 45< A C! /#5#/ 7: 1; /7 0/!a-^!42
GQ/ #0// $'#0// $#8.7 5#

PLC

 

2
3
CHƯƠNG 2: TỔNG QUAN VỀ BỘ KHẢ LẬP TRÌNH SIMATIC PLC S7 300
4
5 2.1 Khái niệm về PLC
%nProgramable Logic ControleroI42 NTW17 6GU@^/
42T2 &#O 6I;'-\ ,T2 &<G‹I=1/P#5##M1-?#I$ n%./#, K
/8,T2N4,#5# 4.5 9#o6 "# $#5## H#L/17 6
Hình 2-1
` $1=8!.%=>#IM<R#5# NTW =#5##F4TNnGhG o,#0/
|#` $1D1-8%#O 6=>#GU@^/617 642Q=>/n42

2/#S,!8o .b##O 6I#F42B15-\ n' #hGGo
8D1%# ‡S 1D=># N7N6 8< N# .#5# $17 6
@[/{SIh,#0/|#SS 1D,1<  /B15-\ ' 5-6,!&42
=164I&I#O 6# ‡ GU8IA# =S/-\ 17 61}c47 0/4M
 1#0/GH##a/ =#5## ' `,T]!;<#O 6=>#H/@^/-MI
.A,%/<8<X' 5-6!#O P/7 FL/6#O 617 6
#5# $17 6-M' H#A',#O 6#.% =4245<` #O#5#b#
64G81


=># N7N!&#M1-?#S/F,#O 6I4!$# /40-=K/#0/
/ $'n# W1=>#-1/,N/d, $2,2Y4#8.o
− 5#` $1!.!-8=>##5# I<!$!&T217 6
− %;'-\ S/F,# ‡ 1D1c "# $#5## H#L/48/`
%./#
{8KL4ˆ“Œp!&zqD1 ;` $1!.-8GQ,/<8<%X=>#
# NA. h.x.@1I6#O 64]-2/ h.<1#D1,#O 6I4!$#!&42GQ
I=>/-MI&#5#D1!.-8nGQ,=S/"o,!#O 6 "# $#F P/# H#
L/17 6' H#A' =I1;17 6,
2.2 Đặc điểm hệ thống điều khiển dùng PLC
"-8K#J8 $17 6%XI4 8<3 ” $ Q/17 6#a/ =
#5#B18$4 N7N!# ?/, $17 6@[/%#O 1=164 =
G81
wF4pq•GQI=>/@C<Q
w0/G1M1 ^#J8%-M M'
wO# H#L/"# 1Y.5@.O/?'# .#0/5#GU8# P8=># 8 # O/
!@t@/
w H#L/17 6 8<3@t@/TE/ NTWI;'-\ n45<` ,4
\ o47 0/#D 8<3' D#H/N17 0/#O<1#D1 4T&#5# NTW
!.,-8

wQI=>/-SIh!4h-` S 1G.!& $17 6#36
wQI=>/N'64 /# =S/-\ GU@^/7 0/ A# N
w K/8 .  42# 1-\ 17 6-M 8 n!4Go@eNL/
#8.Q#2GF_1M
w =S/-\ 17 6#O 6-8/M<# ‡ /!' ?/?' 1;$# .
!MTF.-\!GU8# P8 $ Q/
w%;'-\ @t@/,/0/PI;'-\ @t 9#
w9 V,@t@/TF.B1F,GU8# P8
w1/I=>/T2 &I&6#O 6# H8=># P/# =S/-\ ' H#A'


w..#;< /40-=K/#0// $'
w8.N'=>#!&#5# NTW 0/4 7 5# =45<` ,Q4A/,#5#
x.@1I4]-2/
w2#;<#8.,7`#  =&# s
w5#F#O 6#A -8 =>#
b#-=/#J8%I7 FL/#O 6I;'-\ =>#,# ‡GQ]@FB1<W # .
' r'% .A2/ /40-=K/7 |#/ $#0// $',<N1QT!P/
 `# / ,2#;<,‡I$ = s/-M M', 8< N! $1# ‡ # =S/-\ @t
@/,7 FL/C/#M'#5# NTW/.A! 8<4]-2/GQI=>/D1!. ;'
!D1-8_1M=>#5'H/1}/  /7 FL/-#O 6_h4I#5#1# `
D1# .# ?/87 / ~N N7N' D17 6-1/C4# .42 $
 Q/ .A2/"2/
2.3 Đặc điểm hệ thống điều khiển dùng Rơle
wQ7r4-M 1@C<@e
w 8< N-M' H#A'
wD#0/ CGU8# P88</ #8.
w0/G1M1 ^I&
w K/8GU8# P8IC1
w… O#;' ;GSd/C<7 O7 L# .#0/5#TF.-\#a/ = 8<

 N
.G5 17 6%!&17 6TE/-SIh
O 6G.G5  $@17 6-SIh! $17 6% =G81
• $-SIh
  1T2' ;=>## 1Y O8
 – A<#F4!& t1
 … N!&#5# $ Q/ s
  K/8I|'bIC1
  8<37 O7 L


 …`#  =&#I&
 DTF.B1F =K/_1<
 … O h.@†!764-8#5# $ 0/I&,' H#A'
• $%
  8<3@t@/
 %|'bSF
  8<3 8 B1<-\ 17 6
 …`#  =&# s
 O 6Q!&4A/45<` 
 5  #8.
 2 NTWI;'-\  =K/|,GU!"#
2.4 Ứng dụng của PLC trong công nghiệp
R#5#=1641-, $8<%X=>#H/@^/ /-M 1I~ !"#
7 5# 81 /#0// $' =
w$ Q/C/!;# 1<6
wC<# 1<O//O
w5# T.I|'/5'GF' Y4
w17 6TS4
wC<# 1<_UIc .5 9#

w0// $GF_1M/M<
wC<# 1<GF_1M 1— 
wF_1M_4L/
w0// $# NTN "#' Y4
wC<# 1<# NA.I 7$T5@e
wC<# 1<I|'/5'!
w17 6 $ Q/k/8. 0/
wl1FIc"2/TX;1_h


w$ Q/T5.2/
wC<# 1<48<#0// $'
w17 6 8/45<
wC<# 1<GF_1M_h00
wF_1M!4A# 
w…64-8B15-\ GF_1M
2.5 Cấu trúc plc S7300
5#T217 6%=>#GF_1M h.@i/GF' Y4… 4&_1M
_=]/,# ?/# =8#O42# =S/-\ # .42H/@^/.#FM#F#5#
#3/I./##STF,# H#L/ &,4h-,#.1h-!!=># # NA.`#  >'
 /# ?/!=>#7NQ!& 81TE/# =S/ -\ =>#!NT]/=K
@[/# .42 $4!^17 6#^ 6.O217 6%#O 1
I.A7 5# 81!=>#' CT$!& 81B18#5#  ' DG81
w 5#/†!.!-8
w 1/I=>/ &
w 2N4n#.1h-o
w 2W  Kn4h-o
w  &
w 5## H#L/b#T$
w Q#2_UIc

w %.A_UIc# =S/-\ 
w … FL/-1< 0/
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Q!&#5#T217 6 s,# ?/=>#`#  >' /T217 65#
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# =S/-\ …NB1F_UIc=>#=8-8/†-86NQ=>/17 6 8<
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G81
Hình 2-2
w Bộ nhớ chương trìnhI42T2 &$Ub#T$#O 69#=>#N1
GU@^/T2 &9#w/ =>#n{mxo, \2@1/#J8OI10I10
=># 8<3!`@^ = /-=K/ >'!;  17 6 /
-=K/ >'$5'/1dTW4M \2@1/ /{mx#O 6!e=>#
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w Hệ điều hànhG817 T;/1d#1/#M'# .T217 6, $1 
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R/@i/# =S/-\ RD1N#1Q=S/H/ $1   "# $
# =S/-\  h.#5##C1I$ 
w Bit nhớ (Bit memoryt)5#T4h4 <I#5#' DU &,4 $1
 /  &-A/ 5` $1
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