DATN-Nghien Cuu WinCC Ket Noi Va DK PLC

8/13/2019 DATN-Nghien Cuu WinCC Ket Noi Va DK PLC

1/139

TRNG I HC NHA TRANG

KHOA IN - IN T

N

TT NGHIP I HC

ti:

NGHIN CU WINCC KT NI VIU KHIN PLC

Sinh vin thc hin: PHM HUNH VINH

K50

Gio vin hng dn: Ths.BI THC MINH

Nha Trang, 6-2012


2/139

TRNG I HC NHA TRANG

KHOA IN - IN T

N

TT NGHIP I HC

ti:

NGHIN CU WINCC KT NI VIU KHIN PLC

Sinh vin thc hin: PHM HUNH VINH

K50

Gio vin hng dn: Ths.BI THC MINH

Cn bphn bin:

Nha Trang, 6-2012


3/139

BGIO DC V O TO

TRNG I HC NHA TRANG

CNG HO X HI CHNGHA VIT NAM

c lp Tdo Hnh phc

PHIU NHN XT N TT NGHIP

Hv tn ngi nhn xt:Chc danh: n vcng tc:Tn n: Nghin cu WinCC kt ni v iu khin PLCHv tn sinh vin: Phm Hunh Vinh MSSV: 50131995

Ngnh o to: Cng nghkthut in, in t H: Chnh quy Kha: 50

KIN NHN XT

1. Cht lng hnh thc

2. Cht lng ni dung

Khnh Ha, ngy thng nm 2012

Ngi nhn xt3. im nh gi:

im kt lun ca Hi ng chm n

im s im bng ch

Khnh Ha, ngy thng nm 2012Th k Hi ng Chtch hi ng

(K, ghi r htn) (K, ghi r htn)

Bng s Bng ch


4/139

in tt nghip

GVHD: Ths.Bi Thc Minh SVTH: Phm Hunh Vinh

LI CM N

hon thnh c n ny, u tin em xin gi li cm n n Ban Gim

Hiu, cc Thy C c bit l cc Thy C trong bmn in thuc Khoa in in

Ttrng i Hc Nha Trang, tn tnh chdy, truyn t kin thc cng nh to

iu kin thun li cho em trong sut qu trnh hc tp va qua.

Em xin chn thnh cm n thy Bi Thc Minh quan tm theo di, tn tnh

hng dn v ng vin em thc hin tt n tt nghip ny.

Mc d cgng nhng khng trnh khi sai st. Rt mong sng gp kin

ca cc thy c gio, cc bn c, cng nh cc bn ng nghip n c hon

thin hn ng gp ti liu cho cc kha sau ca ngnh v xy dng m hnh thc

tin p dng trong thc t.

Xin chn thnh cm n! Sinh vin

Phm Hunh Vinh


5/139

iin tt nghip


TM TT N

Vi ti Nghin cu WinCC kt ni v iu khin PLC, ti nghin cu v

phn mm WinCC v h thng PLC cng cng xy dng m hnh ca tng,

iu khin lp trnh bng PLC S7-200 v gim st trn ca WinCC. Vic sdng ngn

ng lp trnh cu trc LAD v kt ni iu khin gim st bng WinCC thng qua

phn mm PC Access.

n Nghin cu WinCC kt ni v iu khin PLC ngoi phn mu, kt

lun v kin ngh, danh mc ti liu tham kho v cc ph lc, ni cung chnh ca

on vn gm cc chng sau:

Chng 1: Tng quan

Nghin cu cc n tt nghip, cc m hnh vkt ni WinCC v iu khin

PLC ca cc trng i hc, ng dng trong thc t. nh gi nhng im tn ti

cc n , v t pht trin hng ti ca mnh.

Chng 2: Tng quan vphn mm WinCC

Nghin cu vphn mm WinCC v cch sdng n ng dng vo thc tin

ti.

Chng 3: Thit blp trnh PLC S7-200 CPU22X (SIEMENS)

Nghin cu v h PLC ni chung v PLC S7200 CPU22X (SIEMENS) ni

ring vcu trc phn cng, cu trc chng trnh v cch gi tnV y l c s

lp trnh chng trnh iu khin cho m hnh.

Chng 4: Kt ni v iu khin gia WinCC v PLC

Thc hin kt ni gia WinCC v PLC thng qua phn mm PC Access.

Chng 5: ng dng iu khin v gim st hthng

Thit km hnh ng, mca tng dng PLC S7-200 iu khin thng qua

giao din WinCC.


6/139

iiin tt nghip


MC LC

LI CM N.............................................................................................................. i

TM TT N ......................................................................................................ii

DANH MC CC TVIT TT ...........................................................................viii

DANH MC BNG ................................ .................................................................. ix

DANH MC HNH ................................................................. .................................... x

MU: GII THIU CHI TIT NI DUNG TI ................................ ........... 1

A.t vn .......................... ............................................ .......................................... 1

B.Tnh cp thit ................................................................. .......................................... 1

C.Mc tiu nghin cu ................................................................................................ 1

D.Phng php nghin cu .......................................................................................... 2

E.Phm vi ti .......................................................................................................... 2

F.ng dng v nhu cu thc tca ti ............................................. ....................... 2

CHNG1: TNG QUAN ........................................................................................ 3

CHNG2: TNG QUAN VPHN MM WINCC .............................................. 4

2.1 Tng quan vphn mm WinCC ................................... ............................. ....... 4

2.2 Chc nng ca trung tm iu khin (Control Center)........................................ 6

2.2.1 Chc nng............................... ............................................ ....................... 6

2.2.2 Control Center ........................................................................................... 7

2.2.3 Nhng module chc nng................................................................ .......... 7

2.3 Cc khi nim thng dng trong WinCC ......................................................... 8

2.3.1 WinCC Explorer ........................................................................................ 8

2.3.2 Chc nng ca WinCC Explorer ................................................................ 8

2.3.3 Nhim vca qun l dliu (Data Manager) ............................................ 8


7/139

ivn tt nghip


2.3.4 Nhim vca WinCC Explorer ................................................................. 8

2.3.5 Cc loi Project .......................................................................................... 9

2.3.6 Cc thnh phn c bn trong mt dn WinCC....................................... 10

2.4 Cc cng cson tho c bn ca WinCC ....................................................... 12

2.4.1 Thit kha ca WinCC (Graphic Designer) ...................................... 12

2.4.1.1 Chc nng ca Graphic Designer...................................................... 12

2.4.1.2 Cu trc ca Graphic Designer................................ ......................... 12

2.4.1.3 Thit lp mt ca s ha mi....................................................... 13

2.4.1.4 Cc ctnh ca chy thc ha..................................... ............... 142.4.1.5 Quan st thuc tnh ca cc i tng to ra trong mn hnh ha. 14

2.4.2 Cc i tng ca WinCC ....................................................................... 14

2.4.2.1 Cc i tng chun (Standard Object)............................................ 14

2.4.2.2 Smart Object ................................................................ ..................... 15

2.4.2.3 Cc i tng ca Window (Window Object)................................... 17

2.4.3 Hthng lu trv hin th(Tag Logging) .............................................. 18

2.4.3.1 Chc nng ca Tag Logging............................................................. 18

2.4.3.2 Thnh phn c bn ca trnh son tho Tag Logging........................ 19

2.4.4 Hthng cnh bo (Alarm Logging) ........................................................ 22

2.4.4.1 Gii thiu chung v h thng cnh bo (Alarm Logging).................. 22

2.4.4.2 Mt s khi nim trong son tho Alarm Logging................... ......... 24

2.4.5 Hthng bo co (Report Designer) ......................................... ............... 27

2.5 Hm trong WinCC ............................................. .............................................. 29

2.5.1 Nhm hm chun (Standard Function) ................................ ..................... 29

2.5.2 Nhm hm trong (Internal Function) ........................................................ 31


8/139

vn tt nghip


2.5.3 Dynamic Wizard ...................................................................................... 31

2.6 Truyn thng trong WinCC.............................................................................. 32

2.6.1 Truyn thng trn mng MPI ................................................................ ... 33

2.6.1.1 B x l truyn thng ............................... ........................................ 33

2.6.1.2 i tc truyn thng......................................................................... 34

2.6.1.3 D liu truyn thng................................................................ ......... 34

2.6.2 Truyn thng trn mng PROFIBUS ....................................................... 35

2.6.2.1 B x l truyn thng....................................................................... 35

2.6.2.2 Trnh iu khin truyn thng (Communication Driver) ................... 362.6.2.3 PROFIBUS DP .................................................................. ............... 37

2.6.2.4 PROFIBUS FMS .................................................. ............................ 38

CHNG 3: THIT BLP TRNH PLC S7-200 CPU22X (SIEMENS) ................ 40

3.1 Gii thiu tng qut vhPLC S7 ........................... ........................................ 40

3.2 c trng kthut ca PLC S7-200 CPU 22X .............................................. ... 41

3.2.1 a chcc vng nhca S7-200 CPU 22X ............................................. 41

3.2.2 Cu hnh vo ra ca S7-200 CPU22X AC/DC/RELAY ........................... 42

3.2.3 Cu hnh phn cng ................................................................................. 43

3.2.4 Khi truyn thng .................................................................................... 44

3.2.5 Card nh, pin, clock .................................................................. ............... 44

3.2.6 Kt ni ngoi vi vi PC ................................................ ............................ 45

3.3 Nhng khi nim c sca PLC S7-200 .......................................................... 47

3.3.1 Khi nim vng qut ca PLC ................................................................. 47

3.3.2 Truy cp dliu ti cc vng nhca S7-200 .......................................... 50

3.3.2.1 Truy cp d liu trc tip............................................. ..................... 50


9/139

vin tt nghip


3.3.2.2 Phn chia vng nh trong S7-200 ..................................................... 51

3.3.2.3 Truy cp d liu gin tip thng qua con tr..................................... 54

3.3.2.4 La chn ngn ng lp trnh ............................................................. 55

CHNG4: KT NI V IU KHIN GIA WINCC V PLC ........................ 57

4.1 Ci t S7-200 PC Access................................................................................ 57

4.2 Cch sdng S7-200 PC Access ..................................................................... 62

4.2.1 To skt ni cho mt PLC ............................. ........................................ 62

4.2.1.1 Thit lp cu hnh giao tip............................................................... 62

4.2.1.2 Thit lp cu hnh mi cho mt PLC.............................................. ... 654.2.2 To mc Item ............................................. .............................................. 66

4.2.3 Chy th, kim tra ................................................................................... 68

CHNG5: NG DNG IU KHIN V GIM ST HTHNG .................. 69

5.1 Yu cu cng ngh............................................. .............................................. 69

5.2 Thit k- lp trnh trn S7-200 ................................................................ ........ 69

5.2.1 S kt ni mch iu khin ................................................................. 69

5.2.2 Khai bo thit bng vo ra ............................. ........................................ 70

5.2.3 S thut ton ....................................................................................... 71

5.2.4 Mch lp trnh LAD vi S7-200............................................................... 72

5.3 Thit kto kt ni trn S7-200 PC Access....................................... ............... 76

5.4 Thit km hnh gim st trn WinCC V7 ....................................... ............... 78

5.4.1 To dn mi .......................................................................................... 78

5.4.2 Xy dng m hnh gim st ..................................................................... 84

5.4.3 Thit lp thuc tnh cho cc i tng ..................................................... 89

5.4.3.1 Thit lp thuc tnh cho ng c ko ca.......................................... 89


10/139

viin tt nghip


5.4.3.2 Thit lp thuc tnh cho nt nhn Star v Stop .................................. 90

5.4.3.3 Thit lp thuc tnh cho cc nt nhn cm bin................................. 93

5.4.4 Chy m phng ........................................................................................ 95

KT LUN V KIN NGH..................................................................... ............... 97

Ti liu tham kho ..................................................................................................... 98


11/139

viiin tt nghip


DANH MC CC T VIT TT

PLC: Programmable Logic Controller. Biu khilogic lp trnh c.

WinCC: Windows Control Center. Trung tm iu khin.

HMI: Human Machine Interface. Giao tip ngi my.

MPI: Message Passing Interface. Giao din a im.

ROM: Read Only Memory. Bnhchc.

RAM: Random Access Memory. Bnhtm thi.

CPU: Central Processing Unit. Bxl trung tm.

PC: Personal Computer. My tnh c nhn.DCE: Data Communication Equipment. Thit btruyn thng dliu.

DTE: Data Teminal Equipment. Thit bu cui.

PIR: Passive InfraRed Sensor. Cm bin hng ngoi.

CS: Configuration System. Hthng cu hnh.

RT: Run Time. Thi gian thc thi.


12/139

ixn tt nghip


DANH MC BNG

Bng 2.1 Cu hnh ci t WinCC ............................................................................... 5

Bng 2.2 Bxl truyn thng ................................................................................. 34

Bng 2.3 Slng PLC c a chbi bxl trong trm WinCC ....................... 35

Bng 2.4 Bxl truyn thng c sn cho php kt ni trm WinCC ....................... 35

Bng 2.5 Giao thc truyn thng cho cc trnh iu khin ................................ ......... 36

Bng 2.6 Slng cc kt ni truyn thng ............................................................... 36

Bng 2.7 Danh sch phn mm lin kt truyn thng trm WinCC thng qua

PRIFIBUS DP ........................................................................................................... 38


PROFIBUS FMS ....................................................................................................... 39

Bng 3.1 Mt sthng skthut ca S7-200 CPU22X ........................................... 41

Bng 3.2 Cc module mrng ca S7-200 CPU224 ................................................ .. 43

Bng 5.1 Khai bo bin vo ra ................................................................................... 70


13/139

xn tt nghip


DANH MC HNH

Hnh 2.1 M hnh truyn thng qua mng MPI .......................................................... 34

Hnh 2.2 M hnh truyn thng qua mng Profibuss DP ................................... ......... 37

Hnh 2.3 M hnh truyn thng qua Profibus FMS ................................ ..................... 38

Hnh 3.1 CPU 224 AC/DC/RLY ................................................................. ............... 40

Hnh 3.2 S u ni dy vo ra ca PLC S7-200 CPU224 .................................... 42

Hnh 3.3 Cu hnh phn cng PLC S7-200 CPU 214 ................................................. 43

Hnh 3.4 Hnh dng ca cp v cng tc chn chtruyn ...................................... 45

Hnh 3.5 Kt ni my tnh vi CPU S7200 RS232/PPI Multi-Master....................... 46

Hnh 3.6 Hnh dng cp USB/PPI .................................................. ............................ 47

Hnh 3.7 Vng qut ca PLC ................................................................ ..................... 47

Hnh 3.8 Chu kqut S7 200 .................................................................................. 49

Hnh 3.9 Lp trnh bng ngn ngLADDER ............................................................. 55

Hnh 3.10 Lp trnh bng ngn ngSTL.................................................................... 56

Hnh 3.11 Lp trnh bng ngn ngFBD ................................................................ ... 56

Hnh 4.1 Mfile ci t ............................................... .............................................. 57

Hnh 4.2 La chn ngn ng..................................................................................... 57

Hnh 4.3 Qu trnh ci t .......................................................................................... 58

Hnh 4.4 Gii nn ci t ........................................................................................... 58

Hnh 4.5 Ci t chng trnh ..................................................................... ............... 59

Hnh 4.6 La chn a ci t ................................................................................. 59

Hnh 4.7 Qu trnh ci t ci t ................................................................ ............... 60

Hnh 4.8 Ci t Driver ............................. ................................................................. 60

Hnh 4.9 La chn cng kt ni .................................................................. ............... 61


14/139

xin tt nghip


Hnh 4.10 Kt thc ci t ......................................................................................... 61

Hnh 4.11 Giao din chng trnh PC Access ................................ ............................ 62

Hnh 4.12 Bc chn cng kt ni ................................................. ............................ 63

Hnh 4.13 Chn kt ni cho chng trnh ................................ .................................. 63

Hnh 4.14 Thit t cho kt ni ................................................................... ............... 64

Hnh 4.15 Chn cng USB cho kt ni ...................................................................... 64

Hnh 4.16 Thit lp cu hnh cho PLC ....................................................................... 65

Hnh 4.17 t tn cho PLC ........................................................................................ 65

Hnh 4.18 To Item .................................................................. .............................. .... 66

Hnh 4.19 t tn cho Item ........................................................................................ 66

Hnh 4.20 Hon tt qu trnh t tn .......................................................................... 67

Hnh 4.21 a Item to vo test ................................................ ............................ 67

Hnh 4.22 Kim tra qu trnh test ................................................................ ............... 68

Hnh 5.1 S kt ni PLC ....................................................................................... 69

Hnh 5.2 S gii thut ........................................................................................... 71

Hnh 5.3 Chng trnh cho hthng ................................................................. ......... 74

Hnh 5.4 Chn loi CPU ca PLC .................................................. ............................ 75

Hnh 5.5 Chn nt dowload np chng trnh cho PLC ........................................ 75

Hnh 5.6 La chn PLC ............................................................................................. 76

Hnh 5.7 t tn cho PLC .......................................................................................... 76

Hnh 5.8 Chn Item ................................................................................................... 76

Hnh 5.9 t tn cc bin ............................................. .............................................. 77

Hnh 5.10 Kt qucc bin to .................................................. ............................ 78

Hnh 5.11 Chy thv kim tra ................................................................................. 78


15/139

xiin tt nghip


Hnh 5.12 Giao din WinCC ...................................................................................... 79

Hnh 5.13 To dn mi ............................................. .............................................. 80

Hnh 5.14 Chn Add New Driver .............................................................................. 80

Hnh 5.15 Chn mng kt ni .................................................................................... 80

Hnh 5.16 Thit lp kt ni ........................................................................................ 80

Hnh 5.17 Chn mng kt ni vi PC Access ............................................................. 81

Hnh 5.18 Chn kt ni S7200.OPCServer ................................ ................................ 81

Hnh 5.19 Chn Server .............................................................................................. 82

Hnh 5.20 Chn S7-200 ............................................................................................. 82

Hnh 5.21 t tn kt ni ............................................. .............................................. 82

Hnh 5.22 Add tag S7200_OPCServer ............................... ........................................ 83

Hnh 5.23 Add cc Tag vo WinCC ................................................ ........................... 83

Hnh 5.24 To Graphics Designer .................................................. ............................ 84

Hnh 5.25 t tn cho Graphics Designer ............................................. ..................... 84

Hnh 5.26 MGraphics Designer .............................................................................. 84

Hnh 5.27 Giao din Graphics Designer ............................. ........................................ 85

Hnh 5.28 Ly th vin linh kin ............................................................................... 85

Hnh 5.29 Giao din ca th vin ................................................................ ............... 86

Hnh 5.30 Ly ca trong Architechtural ............................. ........................................ 86

Hnh 5.31 Ly motor ................................................................ .................................. 87

Hnh 5.32 Ly cm bin ............................................... .............................................. 87

Hnh 5.33 Ti nt nhn .............................................................................................. 87

Hnh 5.34 t tn cho nt nhn ................................................................... ............... 88

Hnh 5.35 Giao din hon thnh thit k.................................................................... 88


16/139

xiiin tt nghip


Hnh 5.36 Thit lp thuc tnh cho ng c................................ ............................... 89

Hnh 5.37 Chn DCMOCUA ................................................................ ..................... 89

Hnh 5.38 Thit lp hiu ng ..................................................................................... 90

Hnh 5.39 Thit lp thuc tnh cho nt Start ............................................................... 90

Hnh 5.40 Thit t trong SetTagBit .......................................................................... 91

Hnh 5.41 Chn Tag_Name cho thit lp ........................... ........................................ 91

Hnh 5.42 Chn Tag START cn thit lp ............................................ ..................... 91

Hnh 5.43 t gi trcho Value ................................................................................. 92

Hnh 5.44 SetTagBit sau thit lp START ................................................................. 92

Hnh 5.45 Thit lp Tag_Name v value cho STOP ................................................ ... 92

Hnh 5.46 SetTagBit sau thit lp START v STOP ................................................ .. 93

Hnh 5.47 Kt ni hon tt ......................................................................................... 93

Hnh 5.48 Thit lp Tag cho nt nhn cm bin ......................................................... 93

Hnh 5.49 SetTagBit lc cha kt ni ........................................................................ 94

Hnh 5.50 Chn Tag Name cho kt ni .............................. ........................................ 94

Hnh 5.51 Chn Tag cm bin cho kt ni ................................................................. 94

Hnh 5.52 Thit t gi tr1 ....................................................................................... 95

Hnh 5.53 Tag mi thit t................................................................................... 95

Hnh 5.54 Thit t gi tr0 ....................................................................................... 95

Hnh 5.55 Nt nhn Runtime ..................................................................................... 96

Hnh 5.56 Giao din mn hnh m phng ........................... ........................................ 96


17/139

1n tt nghip


M U: GII THIU CHI TIT NI DUNG TI

A. t vn Vi spht trin mnh ca khoa hc kthut, nc ta v ang xy dng ngy

cng nhiu nh my a dng vcng ngh. Ngnh tng ha cng khng ngng pht

trin p ng nhu cu ca sn xut. ng dng cng ngh tng vo trong sn

xut l xu hng tt yu ca Vit Nam ang trn ng pht trin cng nghip hi

nhp cng thgii. Hin nay, hng lot cc nh cung cp cng ngh v ang pht

trin nhiu thit b, chng trnh gim st v iu khin dy chuyn sn xut thay

thdn cc phng php iu khin bng tay nh cc module iu khin lp trnh nh

Zen, Logo, cc PLC...

Trong vic nghin cu WinCC kt ni v iu khin PLC nhm thay thdn

sc lao ng ca con ngi qua cc thit bnhgn, gi thnh hnhng rt hin i

nhm nng cao hiu qu, tit kim thi gian v nng cao nng xut trong cng vic.

Tnhng vn ny, em chn ti NGHIN CU WINCC IU KHIN

V KT NI PLC.

B. Tnh cp thitHin ti, trong cc nh my, x nghip cng nghip u ng dng thit b lp

trnh iu khin hot ng my mc, dy chuyn sn xut. Tuy nhin a phn nhp

dy chuyn sn xut ca nc ngoi, gi thnh cao, ks trong nh my cha c kh

nng sa cha khi bh hng m chyu l sdng iu khin.

Nghin cu, thit kgiao din ngi dng WinCC lm cho qu trnh iu khin,

gim st ca nhn vin kthut ngy cng thun tin, an ton hn, dsa cha, gi

thnh thp.

C. Mc tiu nghin cuNghin cu WinCC iu khin v kt ni PLC.Xy dng m hnh thc tkt ni v iu khin trn my tnh thng qua giao

din WinCC.


18/139


19/139


20/139

4n tt nghip


CHNG2: TNG QUAN V PHN MM WINCC

2.1 Tng quan vphn mm WinCCNgy nay cc thit b iu khin kh trnh PLC (Programable Logic Control)

c thay th ln cho cc thit biu khin qu trnh c thc hin vic tng

hon ton mt qu trnh cng ngh, thc hin vic tch hp mng cng nghip

(Industrial Ethernet). Trn thgii cc hng vtng ha nh Omron (Nht), Allen

Bradly (M), Siemens (c)khng ngng phn u a ra nhng sn phm mi

trong lnh vc ny vi nhng tnh nng ca cc PLC ngy cng mnh, tc s l

nhanh p ng c cc nhu cu trong nn cng nghip vi cc bi ton iu khin

kh v phc tp cao. Hin nay trn th trng Vit Nam, PLC ca hng Siemens

c sdng kh nhiu trong cc lnh vc nh in lc, Giy, Xi mng,Cc chng

loi PLC ca hng kh phong ph nh S5, S7-200, S7-300, S7-400,c sn xut a

dng ty theo yu cu sdng v phc tp ca bi ton iu khin. Tuy nhin, ta

thy trong cng nghip vn giao din ngi my HMI (Human Machina

Interface) rt quan trng trong vic iu khin v gim st qu trnh sn xut. Hng

Siemens a ra mt s phn mm xy dng giao din ngi - my nh

Protool/Protool CS, WinCC c tnh linh hot v mm do thc hin gii php k

thut thc hin giao din ngi - my. Nhng phn mm ny khng nhng c thsdng cho cc thit bca chnh hng m n cn mrng tng thch vi cc thit b

ca cc hng khc nh ca GE (General Electric), Allen Bradly, Misubishi

Electric,thng qua cc knh iu khin ring.

WinCC l mt h thng iu khin trung lp c tnh cng nghip v c tnh k

thut, hthng mn hnh hin thha v iu khin nhim vtrong sn xut v t

ng ha qu trnh. Hthng ny a ra nhng modul chc nng tch hp cng nghip

cho hin thha, nhng thng bo, nhng lu tr, v nhng bo co. N l mttrnh iu khin mnh, nhanh chng cp nht cc nh, v nhng chc nng lu tran

ton bo m mt tnh li ch cao em li cho ngi vn hnh mt giao din trc quan

dsdng, c khnng gim st v iu khin qu trnh cng nghtheo chthi

gian thc.


21/139

5n tt nghip


Ngoi nhng chc nng h thng, WinCC a ra nhng giao din mcho cc

gii php ca ngi dng. Nhng giao din ny lm cho n c th tch hp trong

nhng gii php tng ha phc tp, cc gii php cho cng ty m. Struy nhp ti

c sdliu tch hp bi nhng giao din chun ODBC v SQL, slng ghp nhngi tng v nhng ti liu c tch hp bi OLE 2.0 v OLE Custom Controls

(OCX). Nhng c chny lm cho WinCC l mt i tc dhiu, dtruyn ti trong

mi trng Windows.

xy dng c giao din HMI bng phn mm WinCC th cu hnh phn

cng phi bao gm thit bPLC S7 - xxx v cu hnh v cu hnh phn cng ti thiu

ca my tnh cho vic sdng phn mm WinCC v cc thit bkhc phc vcho

vic truyn thng.

WinCC htrcho tt ccc my tnh - nhng nn tng PC thch hp. Mc d gi

tra ra cho cu hnh ti thiu nhng bn phi nhm t c cu hnh khuyn co

t hiu quti u.

Bng 2.1 Cu hnh ci t WinCC

Tn thit b Yu cu ti thiu Nn sdng

CPU Pentum II 266 MHz Pentum II 400 MHz

RAM 96 MB 128 MB

Graphics Controller SVGA (4MB) XGA (8MB)

Resolution 800*600 1024*768

Hard Disk 500 MB trng >500 MB

WinCC da trn hiu hnh MS 32bit Windows 95 hoc Windows NT, bo

m phn ng nhanh x l nhng s kin v chng li smt mt d liu bn

trong, to ra mt san ton cao mt dn nhiu ngi dng. Windows NT cng a

nhng hm c to ra cho san ton v phc vnh nhng thao tc c scho Server

trong mt d n WinCC nhiu ngi s dng. phn mm WinCC l mt ng dng

32bit pht trin vi cng nghphn mm hin i, hng i tng nht.


22/139

6n tt nghip


2.2 Chc nng ca trung tm iu khin (Control Center)2.2.1Chc nng

Control Center cha tt c cc chc nng qun l cho ton h thng. Trong

Control Center, c tht cu hnh v khi ng module Run-time.

a. Nhim vqun l dliuChc nng qun l dliu cung cp hnh nh qu trnh vi cc gi trca tag, tt

chot ng lin quan n qun l dliu u chy trn mt background (nn).

b. Nhim vca Control CenterControl Center c cc nhim vchnh:

Lp cu hnh hon chnh.Hng dn gii thiu vic lp cu hnh.Thch ng vic n nh, gi v lu trcc dn (Project).Qun l cc dn (Project).C kh nng ni mng v son tho cho nhiu ngi s dng trong mt

Project.

Qun l phin bn.Din tbng thcho dliu cu hnh.iu khin v t cu hnh cho cc hnh v/cu trc hthng.Thit lp vic ci t ton cc.t cu hnh cho cc chc nng nh vc bit.To v son tho cc tham kho an cho.Phn hi ti liu.Bo co trng thi hthng.Thit lp hthng ch.Chuyn gia Run-time v cu hnh.


23/139

7n tt nghip


Kim tra chm phng, trgip thao tc t cu hnh dliu bao gm:dch hnh v, m phng tag, hin thtrng thi v thit lp thng bo.

2.2.2Control CenterWinCC Explorer trong Control Center: giao din ha cho cu hnh di

Windows 95 v Windows NT.

Qun l d liu: cung cp nh qu trnh vi nhng Tag gi tr theo cc loisau:

Chu k. Chu kvi sthay i. iu khin skin thi gian.

Truyn dliu tnhng hthng tng ha theo nhng cch sau: Nhn. Yu cu.

2.2.3Nhng module chc nngHthng ha (Graphich Designer): trnh by v ni qu trnh bng ha.Son tho hot ng (Global Scrip): lm mt dn ng cho nhng yu cu

c bit.

Hthng thng bo (Alarm Logging): xut cc thng bo v hi p.Son tho v lu trnhng gi trphp o (TagLogging). Son tho nhng gi trphp o v ct gichng trong thi hn lu di.

Son tho dliu hng ngi dng v ct gichng lu di.Hthng bo co (Report Designer): bo co nhng trng thi hthng.Control Center lm cho ta c thnh hng xuyn qua nhng ng dng WinCC

v dliu ca n vi chmt t thao tc. Control Center thao tc tng tging nh

Explorer trong Windows. Trong WinCC bao gm 2 c sdliu: mt dnh cho vic


24/139

8n tt nghip


nh dng hthng CS (Configuration System), mt dnh cho vic chy thi gian thc

RT (Run time) khi chy WinCC c sdliu ny lun c ti vo v chy song song

vi nhau.

2.3 Cc khi nim thng dng trong WinCC2.3.1WinCC Explorer

N xut hin khi khi ng WinCC. Tt ccc phn ca WinCC u c khi

ng ty. Tca sWinCC Explorer c thxm nhp vo tt ccc thnh phn

m mt dn giao din ngi my cn c cng nh vic xy dng cu hnh cho cc

phn ring l.

2.3.2Chc nng ca WinCC ExplorerWinCC explorer gm tt ccc chc nng qun l phc vvic vo hthng ca

WinCC. Ti y bn c tht cu hnh (Computer, Tag,) v khi ng module

Run-time.

2.3.3Nhim vca qun l dliu (Data Manager)y l mt phn ca WinCC explorer, n cung cp cc hnh nh qu trnh, b

m (Proces Image) cho cc Tag.

2.3.4Nhim vca WinCC ExplorerTo mt dn mi.t cu hnh trn vn.Gi v lu trdn.Qun l dn: m, lu, di chuyn v copy.Chc nng n bng mng cho nhiu ngi s dng (Client - Server

Environment).

Hin thcu hnh dliu.iu khin v t cu hnh ca cp bc ca cc nh, cu trc hthng, chng

hn nh bng cch thhin cy th mc.


25/139

9n tt nghip


Ci t thng stng thnh ngn ng, hthng, ng dn ngi dng.t cu hnh cho vtr chc nng c bit ca ngi dng.Phn hi ti liu (feedback documentation).Lp bo co trng thi ca hthng.Chuyn i gia t cu hnh v chy thc (run time).Thcc module nh m phng khi chy (simulation), trgip hot ng t

cu hnh dliu, chuyn i cc picture, thhin trng thi v to thng bo.

2.3.5Cc loi ProjectWinCC cung cp nhiu loi dn khc nhau ty theo yu cu cng vic v quy

m dn.

Dn n (Single-User Project)Mt dn n thc cht l mt trm vn hnh n, vic to cu hnh, chy thi

gian thc, cng nh kt ni vi bus qu trnh v lu trd liu ca dn u c

thc hin trn my tnh ny.

Dn nhiu ngi dng (Multi-User Project)Mt dn nhiu ngi dng c c im cu hnh nhiu my khch (client) v

mt my ch (server), tt cchng lm vic trong cng mt d n. Ti a 16 client

c truy cp vo mt server. Cu hnh c th t trong server hoc trong mt vi

client. Dliu ca dn xem nh l cc hnh nh (picture), cc tag, dliu c lu

trtrong server v cung cp cho cc client. Server c kt ni vi bus qu trnh v d

liu c sl y. Vn hnh hthng c thc hin tcc client.

Dn nhiu my khch (Multi-Client Project)Dn nhiu my khch l mt loi dn m c thtruy cp vo nhiu server.

Cc server c lin kt c dn ring ca chng. Cu hnh ca project server c

thc hin trong server hoc trong cc client, cu hnh ca dn multi-client c thc

hin trong dn multi-client.


26/139

10n tt nghip


Mt server c thtruy cp ti a 16 client. Mt dn multi-client c thtruy cp

c ti a 6 server. C ngha l d liu ca 6 server c thc gim st v iu

khin trn mt mn hnh ca dn multi-client.

2.3.6Cc thnh phn c bn trong mt dn WinCCComputer: qun l tt ccc WorkStatio v Server nm trong Project.Tag managerment: l khu vc qun l tt cc knh, cc quan h logic, cc

tag process, tag internal v tag groups.

Data type: cha cha cc loi dliu c gn cho cc Tag v cc knh khc.Editor (cc trnh son tho): cc trnh bin tp c lit k trong vng ny

dng son tho v iu khin mt d n hon chnh bao gm GraphicsSystem (Graphics Designer) dng lm cc giao din nh, Global Scrips

dng hin thng cho cc yu cu c bit, cc Message System nh cnh

bo (Alarm Logging), thu thp v lu tr cc gi tr o (Tag Logging), h

thng bo co (Report Designer), giy php sdng (User administration) v

cc Text library. Tt ccc modul ny u thuc hthng WinCC nhng nu

khng cn thit th khng nht thit phi ci t ht.

Sdng cc trnh son tho son tho v iu khin mt dn hon chnh.

Cc thnh phn c lit k u l cc trnh son tho chun ca WinCC.

Alarm Logging: m nhn a tin tqu trnh chun b, hin th, nhn, lu trnhng tin tc theo mt quy lut.

User Administration: kim tra giy php truy nhp cho cc Group v Server.Text Library: cha ng cc ngn ngphthuc vn bn m chng ta to ra.Report Designier: cung cp mt bo co tng hp m c thdng bo co

nh dliu sdng, cc gi trhin thi v gi trct gi, bn tin hin thi v

bn tin lu tr, v cc vn bn ca bn thn hthng.

Global Scrips: cho php to ra mt dn ng c bit theo yu cu. Trnhson tho ny cho php ta to ra cc hm ging nh trong ngn ngC v cc


27/139

11n tt nghip


hnh ng m c thsdng trong sut dn hoc qua nhiu dn phthuc

trong cng loi .

Tag Logging: o cc gi trqu trnh, lu trchng di hn.Graphics Designer: cung cp cc biu tng ha v ni to thnh qu

trnh.

Trong phn mm WinCC c mt khai nim c bit quan trng m chng ta cn

phi nm vng khi xy dng mt hthng iu khin gim st bng WinCC l khai

nim vTag v Tag Groug.

nh ngha Tag: Tag l mt thnh phn trung gian cho vic truy nhp cc bin

qu trnh.Trong mt dn th Tag chmang mt tn duy nht v mt loi dliu. WinCC

Tag c gn bi cc mi quan hLogic, ci mi lin hc nh r bi knh phn

phi cc gi trqu trnh ti cc Tag sdng ti cc thi im ni. WinCC Tag cha

trong mt csdliu ca mt dn rng. Sau khi chy WinCC tt ccc Tag u

c ti vo v tng ng vi cu trc Run-time c dng ln.

Tag Groug dng tchc cc Tag thnh cc cu trc. Tt ccc Tag u c th

c tchc trong cc nhm Tag tng sr rng ca dn.

WinCC Tag m tmt dng dliu thnh phn loi duy nht trong mt d

n v nhng lut cho php truy cp dliu ny.

Ni chung, dliu qun l c skhc nhau gia 2 loi Tag:

Internal Tag (Tag trong):l cc khi nh trong WinCC c phn chia theochc nng nh mt PLC. Chng c th c tnh ton v chnh sa trong

WinCC v khng c a chtrn lp PLC.

External Tag (Tag ngoi): gn cc a chv kt ni trong cc lp PLC.Trong loi Tag ny c mt khung c bit c gi l Tag dliu th (Raw Data

Tag-RDT). Theo mt quan im chung, d liu th ph hp vi mt dng khung d

liu thng bo trn mc vn chuyn, RDT khng hin th c trong Graphics


28/139


29/139

13n tt nghip


Font Palettes.Cc bng v cc thanh cng cphc vcho thao tc vi graphic designer:

Menu Bar. Standard Palettes. Status Bar. Layer Bar.

Cc hp thoi phc vt cc thng sv thay i thuc tnh i tng. Bng mu (Color Palettes):

Gm 16 mu c bn. Sdng i mu ca i tng. Sdng thm vo cc mu ty chn.

Bng i tng: bng ny gm c nhiu i tng c sp xp thnh ccmc con sau y:

Cc i tng chun (Standard bject) gm cc hnh a gic, chnht,elip,

Cc i tng thng minh (Smart Object) gm c cc i tng nhng,cc trng vo/ra, cc i tng ha, cc cng chin th, cc i

tng ba chiu,

Cc i tng Window (Window Object) gm c cc Button, CheckBox, Option Group, Slider. y l cc i tng nhm h tr cho

ha.

2.4.1.3Thit lp mt ca sha miTrong ca sWinCC Explorer, kich p ln Edittor, khi cc thnh phn ca

Edittor sc lit k ra. Vo Graphic Disigner bng cch kch chut phi v chn

Open. Sau khi khi to, trn thanh cng cca Graphic Disigner chn New.


30/139


31/139

15n tt nghip


Static text (dng vn bn tnh). thc hin cc dng vn bn, khi chy thcc ththay i vtr, ni dung ca hp vn bn.

2.4.2.2Smart Objectng dng Window (Application Window)

L nhng i tng thng bo h thng (Alarm Logging), lu tr h thng

(Tag Logging), bo co hthng (Print Jobs) cng nh cc ng dng ca Global Scrip.

Application Window mra nhng ca sng dng v qun l n hin thv vn

hnh.

Picture WindowL nhng i tng c to ra trong Graphic Disigner. Cc i tng

c t cu hnh theo v tr, kch thc v cc c tnh ng khc. Chng hn mt

c tnh quan trng l truy nhp hnh nh c hin th trong Picture Window bng

cch thay i thuc tnh ng Picture name lc chy thc th ni dung ca ca sc

thchy c thay i theo.

iu khin nhng v lin kt i tng (OLE Control)Sdng OLE Control cung cp cc cng cWindow (nh nt bm, hp

la chn). Cc thuc tnh ca n c hin thtrong ca sObject Properties v tab

Event. Cc thuc tnh ny c thc n bn trong ca strn.

i tng lin kt v nhngGraphic Designer cho php chn cc i tng nhng vo ca slm vic ca

n. Trong mode cu hnh bn c thn bn mt i tng vi ng dng OLE thch

hp. Sau khi bn hon thnh vic thay i lin kt i tng nhng mt cch cht

ch, bn phi cp nht kin kt bng tay sao cho ph hp vi cc thay i c th

hin. Tuy nhin bn khng c php n bn trong lc chy runtime.

Trng vo/ra (I/O File)S dng nh mt trng vo hoc mt trng ra hoc nh l mt trng

vo/ra. Cc dng dliu cho php sdng vi I/O File:


32/139

16n tt nghip


Nhphn (Binary). H16 (Hexadeccimal). Hthp phn (Decimal). Xu k t(String).

Bn cng c thnh r gi trgii hn, chnh l trng vo hoc trng ra

hoc trng vo/ra.

BarThuc tnh nhm Smart Object. Thuc tnh ca n nh hng n sxut hin

v tnh nng ca n. N thhin nhng gi trbng thc quan hvi gii hn cao,

thp hoc hon ton chl miu tbng ha hoc phi hp thhin nhng gi tr

vi tldo bn nh ngha.

Hin thtrng thi (Status Display)Sdng hin thbt k con s ca nhng trng thi khc nhau no. Cho

php th hin ng bng cch ni n vi gi tr ca tt c cc Tag tng ng vi

nhng trng thi khc nhau. Bn c thn nh bt k con sno trong khon t0 ti

222-1.

Danh sch vn bn (Text List)Sdng Text List a gi trcho vn bn. N c thsdng nh mt danh

sch vo (Vo l danh sch, ra l gi tr) hoc danh sch ra (Vo l gi tr, ra l vn

bn) hoc phi hp dah sch/vn bn. Dng sliu l thp phn, nhphn hoc bit d

liu u c thsdng.

Loi danh sch Decimal thhin vn bn n nh ti gi trra. Khi bncho vo mt Text th gi tr c chnh sc quyn ti qun l d

liu.

Loi danh sch Binary thhin mt vn bn c chnh ti mt bit cagi trra nu bit c set (t gi trln 0 hoc 1). Trong trng hp ny

chmt bt ca gi trra c set. Vn bn c chnh ti bit no th bit


33/139

17n tt nghip


y c a ra. Khi vo mt vn bn, qun l dliu nhn gi trvo v s

set chnh xc cho bit tng ng vi vn bn vo.

Loi danh sch Bit thhin mt vn bn m n lin quan ti nhng trngthi ca bit nh ngha trong min gi trra.

3D BarN thhin nhng gi trc quan hha vi mc cao v mc thp. C th

t cu hnh loi thhin 3D theo bt k cch no m bn mun.

Nhm hin th(Group Display)Cung cp thhin cch quy ttheo cp bc ca trng thi hin ti ca nhng

loi thng bo nht nh mc d khng c s lin quan ti thng bo h thng viWinCC.

2.4.2.3Cc i tng ca Window (Window Object)Nt bm (Button)

Sdng iu khin s kin qu trnh. N c hai trng thi n xung v

khng n. Lin kt ti qu trnh bng cch thc hin cc thuc tnh ng tng ng.

Hp chn (Check-Box)N c sdng khi m bn cn c 1 hay nhiu la chn bng cch kch ln

tng trng hp m bn cn. Cho php lin kt mm do vi qu trnh bng cch thc

hin nhng thuc tnh ng tng ng.

Nhm la chn (Option Group)Tng tnh Check-Box nhng l la chn n.

Nt trn (Round Button)L mt cng cging nh Button phc vcho vn hnh skin qu trnh.

SliderL cng cin hnh chuyn ng phc vcho iu khin qu trnh (v d

iu khin nhit , mc nc,...). Phm vi iu khin nm gia gi trnhnht v gi


34/139


35/139

19n tt nghip


Labor Data: gm c tt ccc loi dliu c vo bng tay. Machine Data: cung cp vtrng thi my mc. Process Data: dliu qu trnh. Quality Data.

Cc phng php lu trgi trqu trnh.Dliu qu trnh l nhng gi tro c thu nhn tcc sensor c bit.

thc hin trong WinCC, vng lu trhay cc Tag sc gn cho cc dliu ny.

Dliu lu trc iu khin thng qua mt sphi hp gia skin v s

chu k. Khi t cu hnh ca h thng sxc nh loi d liu no nn lu tr trong

mi ni.

C thla chn mt trong cc phng php lu trdi y:

Gim st Tag theo mt chu klu trlin tc-gi tro. Chp nhn lu trkhng theo chu kgi trhin thi. La chn chu klu trlin kt vi iu khin skin cng vi iu khin

lu trqua chu k.

Cc bc son tho Tag Logging. Trong ca shng ca dn kch p vo Editor hin thdanh sch

tt ccc n bn.

Ci t. Kch chut phi vo nt Tag Logging. Khi Menu xut hin hy chn Open. Sla chn ny skhi ng Tag Logging v by gita c thkhi to.

2.4.3.2Thnh phn c bn ca trnh son tho Tag LoggingTrnh son tho Tag Logging gm c cc thnh phn sau:

Time


36/139

20n tt nghip


Tag Logging gii thiu 2 loi hthng timer khc nhau:

Timer thu nhn (Acquisition Timer)L khong thi gian m trong nhng gi trthi gian ny c sao chp

bi Tag tnh qu trnh ca qun l dliu (Data Manager).

Timer lu tr(Archiving Timer)L khong thi gian m trong dliu c np vo vng lu tr. Gi

trsau cng lun c np vo trong mt khong thi gian lu tr. Gi tru thuc

vkhong thi gian trc .

Bphn lu tr(Archives)Th mc lu trc cha thng smc nh cho vic to ra mt bphn lu

trv xc nh cc Tag lin quan trong sut mi quan hgia chng vi qun l d

liu ca Tag.

To ra v son tho mt hay nhiu lu trc thc hin trong vng t cu

hnh Archive. Ti mt thi im mt lu trmi cng c np vo dn.

Trong WinCC cho php sdng 3 dng lu tr:

Lu trgi trqu trnh (Process Value Archive)Cc gi trca qu trnh c thu nhn vmi trng WinCC xl tnh

ton thng qua mi lin h logic l cc Tag qu trnh. Mi mt thnh phn lu tr

nhn cc Tag ca qun l dliu. Mi lin hgia cc gi trqu trnh v lu trc

hnh thnh khi lu trm bn to ra c ni vi mt Tag.

Lu trdng nn (Compressed Archive)Lu trdng ny nn d liu v phi hp cc s liu mt cch hiu qu.

Theo cch ny cc gi tro c thc thu thp trc tip v c sao chp (copy)

ngay sau .

Lu trca ngi sdng (User Archive)


37/139


38/139

22n tt nghip


t cc thng stng thcho Trend. Ni Trend vi Tag c hin th. t thng sca trc x,y. t cc thuc tnh ca Trend

To ca sng dng trong Graphic Disigner. Trong Graphic Designer ni ca sng dng (Aplication window) ti

Trend t cu hnh.

Phm vi ca Trend c thhin

Thhin tnh ca th:C th cho php th hin th trong mt on thi gian m ta t cho

Trend. Cu hnh ny c t trong X-Axis. Khi thhin tnh th Trend chthhin

mt on gi trcddingj m ta t.

Thhin ng ca th:Thi im cui ca Trend lun tng ng vi thi gian h thng thi

im hin ti. Vic t cu hnh cho n cng trong X-Axis ca ca s hp thoi

Properties Trend Window Template.

Bng lu tr(Table Window Template)Thnh phn ny c cu trc gn ging nh Trend nhng hin thgi trhin

thi ca Tag dng bng. Vmt nguyn l m ni th chng khng c g khc nhau, m

chkhc vcch thhin. Tt cvic khi to v t cu hnh l tng tvi Trend.

Chc nng ca n cng ging vi Trend, ngoi vic hin thcn phc vcho

vic in n hthng.

2.4.4Hthng cnh bo (Alarm Logging)2.4.4.1Gii thiu chung vhthng cnh bo (Alarm Logging)

Alarm Logging l trnh son tho m nhn a tin tqu trnh chun b, hin

th, nhn, lu trnhng tin tc theo mt quy lut.


39/139


40/139

24n tt nghip


dng c thnh nhng biu tng trn thanh bngny. Ca sdn c chia

thnh 3 ca snh: dn ng, dliu, bng.

Ta c th thay i kch thc ca nhng ca sny. Pha di ca s cha

thanh trng thi hin ththng tin vqu trnh hin thi.

2.4.4.2Mt skhi nim trong son tho Alarm Logginga. Lu tr

Phthuc vo lp thng bo, sthay i xut hin trong cc trng thi thng bo

c vit cho nhng lu trthng bo c thnh hnh.

Cho nhng lu trngn hn, kch thc lu trc nh ngha bi sthngbo sc lu tr. Mt lu trngn hn c thchc to ra nh mt slu trlin tc. Nu slu trnhng thng bo t n cc i, nhng thng

bo c nht c ghi ln, khi ln ti 10.000 thng bo tnh trng thay i

c thc ct gitrong mt lu trngn hn. Nhng thng bo m c ct

gitrong mt lu trngn hn c hin thtrong mt ca sthng bo.

Cho nhng lu trdi hn, kch thc lu trc xc nh bi khon thigian qua nhng thng bo sc lu tr. Mt lu trdi hn c th l

lin tc hoc ni tip. Trong nhng lu trlin tc, nhng thng bo c nhtc ghi ln sau, lu trkhi nhng thng bo c t n cc i. Trong lu

trni tip, lu trc tip tc tun tcho n khi ht kkhar nng ca mi

trng cha. Nhng thng bo m c ct gitrog mt lu trdi hn c

hin thtrong mt ca sthng bo.

b. Thng bo n, thng bo nhmTrong Alarm Logging, c hai mu thng bo l thng bo n v thng bo

nhm.

Vi thng bo n, mi skin c gn bng mt thng bo.Thng bo nhm c sdng tng kt nhiu thng bo n. Nhng s

kin lin kt ti nhng thng bo n chthc y vic nhm chung cc thng

bo li. Thng bo n m thc y thng bo nhm khng thc xc nh.


41/139

25n tt nghip


Mt thng bo nhm c thc thit lp nh mi kiu lp v loi thng bo.

Hn na, nhng thng bo nhm c th cng c to ra s dng bt k

nhng thng bo n no.

c. Sghi nhn n, sghi nhn nhmMt thng bo cha quyt nh c thc tha nhn mt trong hai cch sau:

Nhng thng bo m khng c thuc tnh ghi nhn nhm phi c ghinhn ring.

Sghi nhn nhm c thsdng tp hp ghi nhn tt c cc thng boring lc thuc tnh ghi nhn nhm c hin thtrong mt ca sthng

bo.d. Skin

Vi nhng skin, mt skhc nhau gia nhng skin nhphn v nhng s

kin gim st:

Nhng skin nhphn l nhng s thay i trng thi ca Tag trong hocTag ngoi.

Alarm khng h tr vic trc tip vic gim st s kin, m ch gim stnhng skin: trn lu trv bnhchc, in thng bo, li Server, xl

ngt truyn thng.

e. Thng boMc ch ca mt thng bo hthng stheo thtthi gian bo hiu v lu tr

nhng skin ti tm im xut hin khng thng xuyn trong sut qu trnh. Mt

thng bo c thc gy ra bi mt skin hoc mt khung thng bo.

Ni chung, c 2 loi thng bo hot ng ca h thng l thng bo li vthng bo h thng. Nhng thng bo hot ng c s dng hin th

trng thi trong qu trnh. Nhng thng bo li c sdng hin th li

trong qu trnh. Nhng thng bo h thng c sdng hin thnhng

thng bo li tnhng ng dng khc.


42/139

26n tt nghip


Trong Alarm Logging, nhng thng bo vi hnh vi tng t(mu ca nhngtrng thi thng bo) c thc nhm li vo trong nhng kiu lp v loi

thng bo.

f. Kiu thng bo, lp thng boNhng lp thng bo khc nhau ttrong ghi nhn xth. Nhng thng bo vi

cng ghi nhn xth c thtch hp trong mt lp thng bo n.

Nhng kiu thng bo l nhng nhm con ca nhng lp thng bo v c th

khc mu ca nhng trng thi thng bo. C ti 16 kiu thng bo c thc to ra

trong WinCC cho mi lp thng bo.

g.

Khi thng boSthay i trong trng thi ca mt thng bo c hin thtrong thi gian thc

hin trong mt hng thng bo. Thng tin s c trnh by trong hng thng bo

c nh ngha sdng nhng khi thng bo. C ba kiu khc nhau:

System blocks: nhng khi hthng (v dnh ngy thng, thi gian, khongthi gian,...) ddng ghi thng tin c nh ngha trc v khng c s

dng ty thch. Vi nhng khi hthng, gi trca khi thng bo (v dnh

thi gian) c hin thtrong hng thng bo.

User text blocks: nhng khi vn bn ngi dng c thcho bn gn cho mtthng bo ln trn ti mi, c skhc nhau l c thnh ngha ty thch

nhng vn bn. Vi nhng khi vn bn ngi dng, ni dung ca khi vn

bn do bn nh ngha v c hin thtrong hng thng bo.

Process value blocks: sdng nhng khi gi trqu trnh, bn c thhin thgi tr ca cc Tag trong hng thng bo. C thnh ngha c dng s

dng. Vi nhng khi gi trqu trnh, ni dung ca khi thng bo, gi tr

ca Tag do bn nh ngha v c hin thtrong hng thng bo.

h. Cch to thng bo hthngnh dng mt thng bo hthng:


43/139

27n tt nghip


nh dng nhng thng bo v lp thng bo.Nhp v xut nhng thng bo n.Ni nhng thng bo ti qu trnh.nh dng h thng WinCC Alarm Control hin thnhng thng bo khi

chy thi gian thc.

i. Cc bc xy dng mt thng bo hthngSdng Wizard to ra cu trc c bn ca thng bo hthng.nh dng nhng khi thng bo theo nhng yu cu ca bn.nh dng hthng thng bo.

nh dng nhng lp thng bo. nh dng nhng kiu thng bo. nh dng nhng thng bo n. nh dng nhng thng bo nhm.

t slu trkiu dliu nh dng nhng lu tr. nh dng nhng bn ghi.

nh dng h thng iu khin bo ng WinCC trong trnh son thoGraphic Designer hin th nhng thng bo khi chy thi gian thc. S

dng ca sng dng (Aplication Window) to hthng Alarm.

Sdng nhng hp thoi Wizard v cu hnh sn c hon ton to ra nhng

thng bo theo cc bc nu trn.

2.4.5Hthng bo co (Report Designer)Report Designer l trnh son tho c bn m WinCC cung cp to v in ra

cc bo co. Trong WinCC cung cp sn hai dng l bo co theo trang v bo co


44/139

28n tt nghip


theo hng. Cc bo co c thin ra dliu dng khi nh dng hthng v cho vic

chy thi gian thc theo cc ng dng sau:

Scripts trong Graphics Designer.Alarm Logging CS.Alarm Logging Runtime.WinCC Explorer.Global Scripts.Graphics Designer.Tag Logging CS.Tag Logging Runtime.Text Library.User Administrator.Trong trnh son tho ny, ta sdng cc i tng ng in cc dliu, cc

dliu ny c ni ti cc ng dng ca n. Chn dliu u ra phthuc ng

dng v thc hin khi to ra lp, khi to ra vic in n. Khi bo co, cc i tng ng

lun c cp nht cc gi trhin thi. Cc i tng hthng v i tng tnh sn

sng cho sp xp cc bo co trc quan. in bo co, ta phi chn thi gian bo co

(chu k cp nht bo co) v mi trng bo co, WinCC a ra cc khnng la

chn sau:

Vic in bo co c quyt nh bi ngi dng.Thi gian in c t trc.In theo chu k.In ra mn hnh.In ra my in c chn trc.In ra file.In ra vng no ca trang in.


45/139

29n tt nghip


t cu hnh trang in.

Mtrnh son tho report, ta sdng cc cng chtrthit ktrang bo co

theo yu cu cng vic nhu cc i tng tnh, ng, h thng cc cng cha,

thanh menu,... Cch lm cng ging nh trong Graphics Designer. Trong trong mt

trang bo co bao gm 2 phn: phn tnh l phn m ti cc trang u a ra ging

nhau nh cc tiu , hnh nh,... v phn ng l phn hin thcc dliu m cn bo

co m ta t bng cc i tng ng. Sau khi t xong cu hnh ta t cc thuc tnh

cho trang bo co nh khgiy, cn l,...sau ghi li vi phn mrng *.rpl.

t tham sin.

in c bo co lc chy thi gian thc th ta phi t tham scho phn in

theo cc bc sau:

Trong ca s WinCC Explorer, nhp p chut vo dng report designer,chn new printfjob. Sau khi hp toi xut hin nhp tn ca bo co, chn lp

bo co nh dng trn.

Trn hp thoai nh du vo mc Start time trong hp checkbox.Chn my in tdanh sach thxung.Nhn Ok kt thc.

2.5 Hm trong WinCCTrong dn WinCC, cc thnh phn ca qu trnh lun lun c lin quan v ph

thuc ln nhau, mi thnh phn c chc nng ring m chng ta phi to ra theo yu

cu cng vic hin thcc gi trca bin qu trnh, cc nt n vi cc chc nng khc

nhau, vic in n cc bo co trng thi hthng. to ra cc chc nng ny, WinCC

h trcc hn khc nhau m ngi lp trnh c th sdng nh dng h thng.Tuy nhin ta c th vit cc hm ring to ra cho cc yu cu khc m WinCC

khng htrbng trnh son tho Global Scrip, sau c thdng cc hm m mnh

to ra c thsdng nhiu ln hoc nhiu dn phthuc cng loi.

2.5.1Nhm hm chun (Standard Function)


46/139

30n tt nghip


a. Nhm hm cho GraphicsOpenpicture: gi trc tip cc nh c phn mrng .pdl bng tham s l tn

ca nh .

SetTagNameWithConnect: gi gin tip nh thng qua tn Tag c gntrong thuc tnh ca nh . Ba tham sca hm l tn nh, tn i tng v

tn Tag.

b. Nhm hm cho ReportReportJob: dng gi lp bo co c son tho bng Report designer,

tham sgi hm l tn lp report c phn mrng .rpl.

RPTjobPreview: dng xem trc lp bo co son tho, tham sgihm l tn lp bo co c phn mrng .rpl.

RPTjobPrint: dng in bo co, tham sgi hm l tn bo co c gnbi lp bo co cn in.

c. Nhm hm WinCCOnErrorExecute: dng c li khi chy thi gian thc.

d.

Nhm hm WindowsProgramExecute: dng gi cc trnh ng dng khc khi chy thi gian thc.

Tham s gi hm l cc chng trnh ng dng chy trn nn Windows c

phn mrng l *.exe.

e. Nhm hm cho AlarmDng qun l vic hin thcc thng bo, nh vli, nguyn nhn gy li,

f. Nhm hm cho Split Screen manegerDng qun l vic chia cc mn hnh gim st.

g. Nhm hm cho Tag LoggingDng to cc chc nng hin thcc bng lu trcc bin qu trnh, hin

thdng ha cc bin qu trnh.


47/139

31n tt nghip


2.5.2Nhm hm trong (Internal Function)a. Nhm hm c gi trTag

GetTagBit: c ni dung ca Tag c dng dliu l Binary.GetTagByte: c ni dung ca Tag c dng dliu l 1 Byte.GetTagWord: c ni dung ca Tag c dng dliu l 1 t.GetTagChar: c ni dung ca Tag c dng dliu k t.GetTagDouble: c ni dung ca Tag c dng dliu sdouble.GetTagFloat: c ni dung ca Tag c dng dliu sthc.

b.

Nhm hm gn gi trcho TagSetTagBit: t gi tr0 hoc 1 cho Tag c dng Binary.SetTagByte: t gi trcho Tag dng Byte.SetTagWord: t gi trcho Tag c dng dliu l 1 t.SetTagChar: t gi trcho Tag c dng dliu k t.SetTagDouble: t gi trcho Tag c dng dliu sdouble.SetTagFloat: t gi trcho Tag c dng dliu sthc.

c. Nhm hm GraphicsNhm hm gn cc gi trcho cc thuc tnh ca i tng ha.Nhm hm c gi trcc thuc tnh ca cc i tng ha.

d. Nhm hm cho Alarm2.5.3Dynamic Wizard

Ngoi cc hm m WinCC h tr, th trong trnh son tho Graphics Designer

cn c mt ca sDynamic Wizard htrcc chc nng c bit khi t cu hnh cho

mt dn nh thot khi WinCC, thot khi h thng runtime, in mn hnh runtime

(hard copy), gi cc trnh ng dng khc... Cc hm chc nng trong ca sc gn

cho cc i tng ha bng cch nh du i tng sau nhy p chu t vo


48/139

32n tt nghip


hm c kit k trong ca s. Sau xut hin hp thoi cho ta chn cc tham sv

n nt finish kt thc lc ny i tng c gn hm m ta khng cn phi gi

hm v bin dch khi gn hm cho i tng.

2.6 Truyn thng trong WinCCTruyn thng l thut ngdng m tstruyn dliu gia hai i tc truyn

thng. D liu c truyn c thphc vnhiu mc ch khc nhau. Trong trng

hp gia PC v PLC dliu c sdng :

iu khin i tc truyn thng.Hin thtrng thi ca i tc truyn thng.Bo co cc trng thi bt thng ca i tc truyn thng.Lu tr.Trong cng nghip, ty theo yu cu cc mng khc nhau c sn cho vic phc

vtruyn thng cng nghip, cc loi mng sau c lit k theo th t tng dn v

quy m v phm vi sdng ty thuc bi ton truyn thng:

MPI.

Profibus.Industrial Ethernet.

Mng MPI

MPI (giao din a im) thch hp cho nhng mng kch thc nh. N c th

chc sdng phi hp vi Simatic S7. Mng MPI sdng giao din MPI ca card

xl trung tm PLCs cho truyn thng. Giao din ny c thit knh mt giao

din lp trnh v nhanh chng t n nhng gii hn thc hin ca n vi yu cu

truyn thng ngy cng tng. Mt PC c thtruy nhp mng MPI bng mt card MPI

c ci. Nhng bxl truyn thng cung cp struy nhp ti Profibus c thcng

c sdng.


49/139


50/139

34n tt nghip


Trnh iu khin truyn thng SIMATIC S7 PROTOCOL SUITE cung cp vic

truyn thng ti cc PLC SIMATIC S7-300 v S7-400 xdng cc knh truyn thng

khc nhau. Trong s c sn mt knh MPI truyn thng qua n.

2.6.1.2i tc truyn thngTrnh iu khin truyn thng SIMATIC S7 PROTOCOL SUITE cho php

truyn thng ti PLC SIMATIC S7-300 v S7-400. Theo hnh minh ha di y cho

bit cc i tc truyn thng c thca knh MPI.

Hnh 2.1 M hnh truyn thng qua mng MPI

2.6.1.3Dliu truyn thngKnh MPI htrvic truyn thng thng qua modul Hardnet v Softnet. Mi PC

chc thc sdng mt module truyn thng MPI. Theo bng di dy cho bit

s lng PLC c th c a ch bi b x l truyn thng x dng trong trm

WinCC. Gi trong hoc biu din slng khuyn co ln nht.

Bng 2.3 Slng PLC c a chbi bxl trong trm WinCC

Bxl truyn thng Slng im kt ni truyn thng(Communication Connections)

(Communication Processor) 29 (6)

Hardnet Modul 29 4)


51/139


52/139

36n tt nghip


2.6.2.2Trnh iu khin truyn thng (Communication Driver)Trong WinCC, c nhiu trnh iu khin truyn thng c sn cho php truyn

thng thng qua mng PROFIBUS.

Giao thc truyn thng

Cc trnh iu khin truyn thng c sn cho PROFIBUS thc hin truyn

thng thng qua mt giao thc truyn thng no . Theo bng chra di y cho

bit giao thc truyn thng cho cc trnh iu khin truyn thng ca n.

Bng 2.5 Giao thc truyn thng cho cc trnh iu khin

Trnh iu khin truyn thng

(Communication Driver)

Protocol

SIMATIC S7 PROTOCOL SUITE

(PROFIBUS)

S7-Functions

SIMATIC S5 PMC PROFIBUS S5-PMC

SIMATIC S5 PMC PROFIBUS FDL FDL

PROFIBUS FMS FMS

PROFIBUS DP DP

Kt ni truyn thng

Theo bng di y s lng cc kt ni truyn thng c thc lin kt bi

mt trnh iu khin no .

Bng 2.6 Slng cc kt ni truyn thng

Trnh iu khin truyn thng

(Communication driver)

S cc kt ni cho mt knh

(Connections per channel unit)

S lng knh

(Channel units)

S7 PROFIBUS 59 2S5 PMC PROFIBUS 24 1

S5 PROFIBUS FDL 24 1

PROFIBUS FMS 32 1

PROFIBUS DP 62 4


53/139

37n tt nghip


2.6.2.3PROFIBUS DPThng qua trnh iu khin truyn thng PROFIBUS DP, mt trm WinCC c

thtruyn thng vi tt ccc PLC v cc thit btrng, cc thit bny c thc

hot ng nh cc DP slave. ng dng trnh iu khin truyn thng PROFIBUS DP

trong WinCC scho khnng lm vic tt, nu c mt lng nhdliu truyn thng

ti mt slng ln cc thit bcp di. C thcp nht Tag rt nhanh ngay ckhi

dliu bphn tn.

i tc truyn thng

Thng qua cc trnh iu khin truyn thng PROFIBUS DP, c th lin kt

truyn thng vi tt c cc PLC v cc thit b trng, cc thit bny c thc

hot ng nh cc DP slave. Theo s m t ca hnh di cho bit nhng i tc

truyn thng c th.

Hnh 2.2 M hnh truyn thng qua mng Profibuss DP

Truyn thng dliu

Trnh iu khin truyn PROFIBUS DP cung cp ring cho truyn thng thng

qua bxl truyn thng CP 5412 A2. Trong mt trm WinCC c thxdng t1

n 4 module truyn thng. Mi b x l truyn thng CP 5412 A2 c th truyn

thng vi 62 DP slave nu c Repeater, nu khng c Repeater th chkt ni ti a

c 32 trm.


54/139

38n tt nghip


Yu cu phn mm

Bng sau s cho ta bit danh sch cc phn mm thc hin lin kt truyn

thng ca trm WinCC thng qua PRIFIBUS DP.


PRIFIBUS DP

Tn M t

WinCC Trnh iu khin truyn thng (Communication Drive)

PROFIBUS DP

SIMATIC NET Driver Software PB DP-5412

Configuration Software COM PROFIBUS

2.6.2.4PROFIBUS FMSThng qua trnh iu khin truyn thng PROFIBUS FMS, mt trm WinCC c

thtruyn thng vi cc PLC c htrgiao thc FMS.

Trnh iu khin truyn thng PROFIBUS FMS c thc xdng truyn

thng vi cc thit bc cung cp bi cc nh sn xut khc nhau. Truyn thng

loi ny c thqun l mt slng ln dliu.i tc truyn thng

Thng qua trnh iu khin truyn thng PROFIBUS FMS, WinCC c thtruyn

thng vi cc PLC c htrgiao thc FMS. Theo hnh vm tdi y cho bit

cc i tc truyn thng c th.

Hnh 2.3 M hnh truyn thng qua Profibus FMS


55/139

39n tt nghip


Phn mm truyn thng

Nhng phn mm i hi cho vic thc hin kt ni truyn thng ca mt trm

WinCC thng qua PROFIBUS FMS.


PROFIBUS FMS

Name Description

WinCC Communication Driver PROFIBUS FMS

SIMATIC

NET

Driver Software PB FMS-5412

Configuration Software COM PROFIBUS


56/139

40n tt nghip


CHNG3: THIT B LP TRNH PLC S7-200 CPU22X (SIEMENS)

3.1 Gii thiu tng qut v h PLC S7Thit biu khin logic khtrnh PLC (Programable Logic Controler) l thit b

iu khin c bit dtrn bvi xl, sdng bnhlp trnh c lu trcc

lnh, thc hin cc chc nng v thut ton iu khin my v cc qu trnh.

HPLC S7 l l mt hc PLC mnh, tc xl cao, khnng qun l bnhtt, kt ni mng cng nghip.

Hin nay hPLC S7 gm c S7-200, S7-300, S7-400.Mi mt thhPLC li c nhiu chng loi CPU khc nhau.i vi PLC S7, c th thc hin cc php ton Logic, m, nh thi, cc

thc ton phc tp v thc hin truyn thng vi cc thit bkhc.

Hnh 3.1 CPU 224 AC/DC/RLY


57/139

41n tt nghip


Bng 3.1 Mt sthng skthut ca S7-200 CPU22X

CPU221 CPU222 CPU224 CPU226 CPU226XM

Bnhchng

trnh 2048W 2048W 4096W 4096W 8192W

Bnhdliu 1024W 1024W 2560W 2560W 5120W

Khnng d

phng bnhkhi

mt ngun

50 gi 50 gi 190 gi 190 gi 190 gi

I/O a ch 6In/4Out 8In/6Out 14In/Out 24In/16Out 24In/16Out

ng hthi gian

thcCartrige Cartrige Tch hp Tch hp Tch hp

Kch thc bm 256 (128In, 128 Out)

Tc thc hin

lnh logic0.37us/lnh

3.2 c trng k thut ca PLC S7-200 CPU 22X3.2.1 a chcc vng nhca S7-200 CPU 22X

u vo (Input): I0.0 I0.7; I1.1 I1.5.u ra (Output): Q0.0 Q0.7; Q1.0 Q1.1.Bm o u vo: I0.0 I15.7 (128 u vo).Bm o u ra: Q0.0 Q15.7 (128 u ra).u vo tng t: AIW0 AIW62.u ra tng t: AQW0 AQW62.

Vng nhV: VB0 VB5119.Vng nhL(a phng): LB0 LB63.Vng nhM: M0.0 M31.7.Vng nhSM: SM0.0 SM549.7.

SM0.0 SM29.7 (read-only).


58/139

42n tt nghip


Vng nhTimer: T0 T225.Vng nhCounter: C0 C225.Vng nhbm tc cao: HC0 HC5.Vng nhtrng thi (logic tun t): S0.0 S31.7.Vng nhthanh ghi tng: AC0 AC3.Khnng qun l Label: 0 255.Khnng qun l chng trnh con: 0 63.Khnng mrng chng trnh ngt: 0 127.

3.2.2Cu hnh vo ra ca S7-200 CPU22X AC/DC/RELAY

Hnh 3.2 S u ni dy vo ra ca PLC S7-200 CPU224


59/139

43n tt nghip


Bng 3.2 Cc module mrng ca S7-200 CPU224

Tn module mrng Kiu

Module s

u vo 8DI (VDC) 8DI (VAC)

u ra 8DO (VDC) 8DO (VAC) 8DO (Relay)

Kt hp 4DI/4DO 8DI/8DO 16DI/16DO

4DI/4DO(Relay) 8DI/8DO(Relay) 16DI/16DO(Relay)

Module tng t

u vo 4AI 4AI(Thermocoupler) 2AI(RTD)

u ra 2AO

Kt hp 4AI/1AO

Module thng minh Vtr Modem PROFIBUS-DP

Module thu thp d

liu hin trngAS-Interface

3.2.3Cu hnh phn cng

Hnh 3.3 Cu hnh phn cng PLC S7-200 CPU 224


60/139

44n tt nghip


M tcc n bo trn CPU 224. SF (n ): n SF bo hiu hthng bli. n SF sng ln khi PLC

c li.

RUN (n xanh): PLC ang lm vic v thc hin chng trnh c npvo trong bnhchng trnh.

STOP (n vng): PLC ang chdng. I.x.x (n xanh): Chnh trng thi mc logic tc thi ca cng vo. Q.x.x (n xanh): Chnh trng thi mc logic tc thi ca cng ra.

Chn chlm vic trn CPU 224. RUN: Cho php PLC thc hin chng trnh trong bnh. PLC S7 200

chuyn sang chSTOP khi CPU c schoc gp lnh STOP.

STOP: Cng bc PLC dng chng trnh ang chy v chuyn sang ch STOP. V ch STOP cho php PLC hiu chnh, np, xa mt

chng trnh.

TERM: Cho php ngi dng tmy tnh quyt nh chn mt trong haichlm vic cho PLC.

3.2.4 Khi truyn thngS7-200 sdng cng truyn thng ni tip RS 485 phc vvic ghp ni vi

thit blp trnh hoc cc trm PLC khc. Tc truyn cho my lp trnh kiu PPI l

9.6 kbps, tc truyn cung cp ca PLC theo kiu tdo l 300 baud n 38400 baud.

Giao tip PLC 200 vi PC thng qua cng RS 232 cn c cp ni PC/PPI vi

bchuyn i RS232/RS485 v qua cng USB dng cp USB/PPI.

3.2.5Card nh, pin, clockS7 200 cung cp nhiu bin php m bo cho chng trnh ngi dng, d

liu khng bmt i khi mt ngun in. V dCPU 224 khong 100 gi. Vng nh

EEPROM cho php lu chng trnh, cc vng nhc ngi dng chn cha vo


61/139


62/139


63/139

47n tt nghip


b. Cp USB/ PPI Multi Master

Hnh 3.6 Hnh dng cp USB/PPI

Cch thc kt ni ca cp USB/PPI Multi-Master cng tng t nh cp

RS232/PPI Multi-Master. s dng cp ny, phn mm cn phi l Step 7

Micro/Win V3.2 SP4( hoc cao hn). Cp ny chc thc sdng vi loi CPU

22x hoc sau ny. Cp USB khng htrtruyn thng Freeport v Dowload cu hnh

mn hnh TP070 tphn mm TP Designer.

3.3 Nhng khi nim c sca PLC S7-2003.3.1 Khi nim vng qut ca PLC

Hnh 3.7 Vng qut ca PLC


64/139

48n tt nghip


a) c dliu u vo:c cc trng thi vt l (Input) vo bm o (IR Input Register).

b) Thc thi chng trnh:CPU c dliu tIR, thc hin chng trnh phn mm, kt quc lu li

cc vng nhthch hp v bm o u ra (OR Output Register).

c) Xl cc yu cu truyn thng (option):Nu c yu cu truyn thng v xl ngt.

d) Tchun on li:CPU kim tra li ca hiu hnh trong ROM, cc vng nhv cc trng thi

lm vic ca cc module mrng.

e) Xut kt quu ra:CPU c kt qutOR, v xut kt qura cc cng vt l.

Mt slu :

u vo s Nu khng dng tnh nng I (Immediately) th d liu u vo c cp

nht ti bm o.

Nu dng tnh nng ny, chng trnh bqua bm o.u vo tng t

Nu bqua tnh nng lc tng t, th chng trnh sly trc tip dliuti cng vt l.

Nu dng tnh nng ny, th chng trnh sc cc gi trc lu li.


65/139


66/139

50n tt nghip


3.3.2 Truy cp dliu ti cc vng nhca S7-2003.3.2.1Truy cp dliu trc tipa. Truy cp theo bt

b. Truy cp theo byte

MSB LSB

VB100

c. Truy cp theo Word (t)

MSB LSB

VW100

7 VB100 0

15 VB100 8 7 VB101 0

a chtheo bit

Du phn cch (bt buc)

a chbyte nh

Tn vng nh

1 2 . 4

1 2 3 4 5 6 7 8

Byte 0

Byte 1

Byte 2

Byte 3

Byte 4

Byte 5

a chbyte caoKiu truy cp

Tn vng nh

V W 100

V B 100

a chbyte

Kiu truy cp

Tn vng nh


67/139

51n tt nghip


d. Truy cp theo Double Word (tkp)

MSB LSB

31 VB100 23 VB101 16 15 VB102 8 7 VB103 03.3.2.2Phn chia vng nhtrong S7-200a. Vng m o u vo (I;I0.0-I15.7)

CPU struy cp cc u vo vt l ti u mi chu kqut v ghi dliu vobm o.

nh dng truy cp:Bit: I[byte address].[bit address] I0.1

Byte, Word, or Double Word I[size][starting byte address] IB4

b. Vng m u o ra (Q;Q0.0-Q15.7) Cui mi chu kqut, CPU S7-200 struy cp dliu tbm o xut ra

cc u ra vt l.

nh dng truy cp:Bit: Q[byte address].[bit address] Q1.1

Byte, Word, or Double Word Q[size][starting byte address] QB5

c.

Vng nhbin (V;VB0-VB5119) Vng nhny thng lu cc kt qutrung gian ca chng trnh. nh dng truy cp:

Bit: V[byte address].[bit address] V10.2

Byte, Word, or Double Word V[size][starting byte address] VW100

a chbyte cao

Kiu truy cp

Tn vng nh

V D 100

VD100


68/139

52n tt nghip


d. Vng nhbt (M;M0.0-M31.7) Vng nhny thng lu cc kt qutrung gian ca mt thao tc hoc cc

thng tin iu khin khc.

nh dng truy cp:Bit: M[byte address].[bit address] M26.7

Byte, Word, or Double Word M[size][starting byte address] MD20

e. Vng m bnhtc cao (HC;HC0-HC5) Bm tc cao hot ng c lp vi chu kqut ca PLC. Current value

l mt gi trm 32bit c du, l gi tr ch c v c gn a chdi

dng double word.

nh dng truy cp:Format: HC[high-speed counter number] HC1

f. Vng nhthi gian (T;T0-T225) Vng nhny dnh cho cc bthi gian ca S7-200. i vi mt bTimer

c hai hnh thc truy cp vng nh, truy cp theo Timer bit hoc Current

Value.

nh dng truy cp:Format: T[timer number] T24

Ty theo lnh sdng trong chng trnh m cho php ta truy cp theo Timerbit hay Current value.

g. Vng nhbm (C;C0-C225)Vng nhny dng cho cc bm ca S7-200. i vi mt bCounter c

hai hnh thc truy cp vng nh, truy cp theo Counter bit hoc Current value.

nh dng truy cp:Format: C[counter number] C24


69/139

53n tt nghip


Ty theo lnh s dng trong chng trnh m cho php ta truy cp theoCounter bit hay Current value.

h. Vng nhthanh ghi tng (AC;AC0-AC3)Thanh ghi tng thng c dng truyn tham svo v ra cho cc thtc,

lu trcc kt qutrung gian ca mt php tnh.

nh dng truy cp:Format: AC[accumulator numbet] AC0

i. Vng nhc bit (SM)Vng nhny cung cp cc bit truyn thng gia CPU v chng trnh. Cc

bit ny c dng la chn v iu khin mt s chc nng c bit ca

CPU S7-200.

nh dng truy cp:Bit: S[byte address].[bit address] S3.1

Byte, Word, or Double Word S[size][starting byte address] SB4

j. Vng nhu vo tng t(AL)S7-200 chuyn mt gi trtng tthnh mt gi trsc ln 16bit. Do

ln dliu truy cp l mt t, mc khc khi truy cp u vo tng tlun s

dng nh dng theo t, do vy a chbyte cao lun l schn. V dALW0,

ALW2, ALW4. Gi tru vo analog di dng chc.

nh dng truy nhp:Format: AIW[starting byte address] AIW4

k. Vng nhu ra tng t(AQ)S7-200 chuyn mt gi trsc ln 16 bit thnh mt gi trtng tdi

dng dng in hoc in p tlvi gi tr. Do ln gi trchuyn i

l mt t, nn a chbyte cao lun l schn. V d: AQW0, AQW2, AQW4.

Gi tru ra analog di dng chghi.


70/139

54n tt nghip


nh dng truy cp:Format: AQW[starting byte address] AQW4

3.3.2.3Truy cp dliu gin tip thng qua con tra. Con tr(Pointer)

L mt nhc kch thc mt tkp (double word) cha a chca mt nh

khc. Khi ta truy cp vo nhca con trc ngha ta ang c a ch ca nh

mong mun.

C 3 vng nh trong S7-200 cho php dng lm con tr: V, L, AC1, AC2,AC3.

S7-200 cho php dng con trtruy cp cc a chnhAL, AQ, HC, SM, Lv a chdi dng bit.

S7-200 cho php dng con trtruy cp cc a chnhsau: I, Q, V, M, S, T(timer value), C (current value).

Khi sdng cch truy cp thng qua con tr, trong S7-200 sdng 2 k t&v *.

K t&: dng khi to con tr. V d: MOVD & VB200, AC1. Chuyn a ch VB200 (khng chuyn ni dung) vo thanh ghi AC1.

Thanh ghi AC1 trthnh con tr.

K t*: dng truy cp ni dung nhc a chcha trong con tr. V d: MOVB *AC1, VB200. Chuyn ni dung nhc a ch lu trong con trAC1 vo nhc

a chVB200.

b. Lu : thay i ni dung con trSdng lnh tng +D (Tng tkp, do con trl mt thanh ghi 32 bit).


71/139

55n tt nghip


Nu truy cp theo byte: Tng ni dung con trln 1.Nu truy cp theo word: Tng ni dung con trln 2.Nu truy cp theo double word: Tng ni dung con trln 4.

3.3.2.4La chn ngn nglp trnhTrong S7-200 cho php la chn 3 ngn nglp trnh:

Ngn ngLADDER (LAD).Ngn ngSTL.Ngn ngFBD.Ba ngn ngny vmt hnh thc c thchuyn i ln cho nhau. Vic la chn

ngn nglp trnh l ty theo thi quen, sthch cng nh kinh nghim ca ngi s

dng.

a. Ngn ngLADDERL ngn nglp trnh ha da trn c ss trang bin, vic kt ni

lp trnh ha ging vi vic thit lp cc s relay-contactor. Mt chng

trnh ngun vit bng LAD c tchc thnh cc network, mi network thc

hin mt cng vic nh.

S7-200 c chng trnh ttrn xung di, ttri qua phi, sau lp li vng qut tip theo.

Hnh 3.9 Lp trnh bng ngn ngLADDER


72/139


73/139

57n tt nghip


CHNG4: KT NI V IU KHIN GIA WINCC V PLC

S7-200 PC ACCESS c dng trong lun vn ny vi mc ch kt ni gia

S7-200 v WinCC, lm c iu ny ta tm hiu cch ci t v sdng ca n

di y.

4.1 Ci t S7-200 PC AccessCc bc thc hin:

Ti th mc cha chng trnh ci t. Chn file Setup, ri nhp i chy

chng trnh.

Hnh 4.1 Mfile ci t

Hp thoi Choose Setup Language xut hin, chn ngn ngEnglish, nhp OK.

Hnh 4.2 La chn ngn ng

Vt sng xut hin lan dn qua phi trn hp thoi cho bit chng trnh ang ci

t.


74/139

58n tt nghip


Hnh 4.3 Qu trnh ci t

Hp thoi InstallShield Wizard xut hin, nhp Next tip tc ci t.

Hnh 4.4 Gii nn ci t

Hp thoi ktip xut hin, chn Yes.


75/139

59n tt nghip


Hnh 4.5 Ci t chng trnh

Hp thoi hin thng dn ci t chng trnh. Nu mun thay i ng

dn chn nt Browse. y ta ginguyn ng dn mc nh, nhp Next.

Hnh 4.6 La chn a ci t


76/139

60n tt nghip


Vt sng xut hin lan dn ttri sang phi cho bit qu trnh ci t ang tin

hnh.

Hnh 4.7 Qu trnh ci t ci t

Bng SIMATIC Device Drivers Setup xut hin.

Hnh 4.8 Ci t Driver

Sau khi cc vt sng chy xong, hp thoi Set PG/PC Interface xut hin, nhp

OK.


77/139


78/139

62n tt nghip


4.2 Cch sdng S7-200 PC Access4.2.1To skt ni cho mt PLC

Trong S7-200 PC Access vi trgip OPC bao gm 3 bin i tng:

PLC.Folder (khng cn thit).Item.Khi to mt dn mi, vic kt ni PLC phi c lm trc vi hai bc sau:

4.2.1.1Thit lp cu hnh giao tipKhi ng S7-200 PC Access, tthanh Taskbar chn Start > Simatic > S7-200

PC Access.

Mmt d n mi, chn File > New, ca sUnititled-S7-200 PC Access xut

hin.

Hnh 4.11 Giao din chng trnh PC Access

Nhp phi vo Microwin chn PG/PC Interface...


79/139


80/139

64n tt nghip


Hnh 4.14 Thit t cho kt ni

Chn a chv tc truyn cho S7-200 PC Access, thng thng mc nh

nh trn. mc Local connection chn cng COM cn kt ni vi PLC.

Sau nhn OK chp nhn.

Hnh 4.15 Chn cng USB cho kt ni


81/139


82/139

66n tt nghip


4.2.2 To mc ItemNhp phi vo mc PLC chn New, ri chn item.

Hnh 4.18 To Item

Hp thoi Item properties xut hin, mc Name nhp tn theo dn to

S7-200, mc Address nhp a chvng nh, ng vo ng ra ph hp vi dn m

ta thit lp trn S7-200, sau nhp OK chp nhn. Cthsc trnh by

chng sau.

Hnh 4.19 t tn cho Item

Sau khi nhn OK ta c kt qusau, tng tto thm nhiu Item khc.


83/139

67n tt nghip


Hnh 4.20 Hon tt qu trnh t tn

Sau nhp chut chn cc item va to ri ko r thvo vng Test Client.

Hnh 4.21 a Item to vo test


84/139

68n tt nghip


4.2.3 Chy th, kim traNhp chn Status > Start test Client.

Hnh 4.22 Kim tra qu trnh test

Nu thy ct Qualty chuyn tBad sang Good l vic kt ni thnh cng.


85/139

69n tt nghip


CHNG5: NG DNG IU KHIN V GIM ST H THNG

5.1 Yu cu cng nghQui trnh hot ng

Nhn nt START, khi ng hthng.

Khi c ngi hay xe vo/ra th CB1 pht hin tc ng khi ng ng c ko

ca ln, n khi ht gp cm bin bo ca mht CB2 th dng ng c sau 10s th

ng ca li, n khi ca ng ht cm bin CB3 bo th ngng ng c.

Mun dng hthng th nhn nt STOP.

5.2 Thit k- lp trnh trn S7-2005.2.1 S kt ni mch iu khin

Hnh 5.1 S kt ni PLC


86/139

70n tt nghip


5.2.2Khai bo thit bng vo raBng 5.1 Khai bo bin vo ra

K hiu

a ch

Tn hiu

Ch thch

1 Start I0.0 u vo Khi ng hthng

2 Stop I0.1 u vo Nt dng hthng

3 S1 I0.2 u vo Cm bin bo mht ca

4 S2 I0.3 u vo Cm bin bo ca ng

5 S3 I0.4 u vo Cm bin bo c ngi hoc vt vo/ra

6 Open Q0.1 u ra Mca

7 Close Q0.2 u ra ng ca


87/139

71n tt nghip


5.2.3S thut tonBegin

Kim traI0.0=1

Kim traI0.4=1

CTHT 1

I0.2=1

T37=10s

CTHT 2

I0.3=1

Kim traI0.1=1

End.

ng caQ0.2=1

M caQ0.0=1

M caQ0.1=0

ng caQ0.2=0

Hnh 5.2 S gii thut


88/139

72n tt nghip


5.2.4Mch lp trnh LAD vi S7-200Khi ng STEP S7-200: trn thanh Taskbar chn Start > MIMATIC > Step 7-

Microwin 32, tin hnh thit k.


89/139

73n tt nghip



90/139

74n tt nghip


Hnh 5.3 Chng trnh cho hthng


91/139

75n tt nghip


Sau khi thit kmch iu khin xong, ta kim tra li (plc > compile khi gc

tri pha di mn hnh c ch 0 errors l c), ri lu li vi tn

DONGCUAKEOTUDONG, tip theo tin hnh m phng kim tra hot ng ca

mch.

Trc tin ta cn chn loi CPU m ta cn kt ni m phng: tbn tri ca

ca sthit knhp phi vo tn m ta va lu chn Type > PLC Type > CPU ??? >

OK.

Hnh 5.4 Chn loi CPU ca PLC

Sau nhp vo biu tng Dowload np chng trnh cho plc.

Hnh 5.5 Chn nt dowload np chng trnh cho PLC

Kim tra hot ng trn plc nu tha yu cu l t, n y hon thnh cng

vic vi STEP 7-Micro/Win 32.


92/139

76n tt nghip


5.3 Thit kto kt ni trn S7-200 PC AccessKhi ng S7-200 PC Access, trn thanh Taskbar chn Star > Simatic > S7-200

PC Access > S7-200, ca smi xut hin nhp chut phi vo MicroWin chn New

PLC.

Hnh 5.6 La chn PLC

Xut hin hp thoi, mc Name nhp S7-200 ri chn OK.

Hnh 5.7 t tn cho PLC

Sau nhp phi vo S7-200 ri chn New > Item

Hnh 5.8 Chn Item


93/139

77n tt nghip


Hp thoi Item xut hin, mc Name nhp vo Start, mc Address nhp vo

gi trM0.0 ri chn OK.

Hnh 5.9 t tn cc bin

Tng t to cc Item khc da vo mch LAD m ta thit k STEP 7

MicroWIN SP5 ta c kt qunh sau:

Hnh 5.10 Kt qucc bin to

Sau lu li vi tn DONGCUAKEOTUDONG (nhlu trng tn lu trn

STEP 7 MicroWIN SP5), tip theo chn cc Item to ko b xung vng Test

Client nh hnh bn di:


94/139


95/139


96/139


97/139

81n tt nghip


Mn hnh OPC Item manager xut hin.

Hnh 5.17 Chn mng kt ni vi PC Access

Click chut vo local, nu hthng ci t thnh cng PC Access th chng

trnh stng tm kim OPC Driver.

Chn S7-200.OPC Sever ri chn Browse sever. Ri chn Next trong mn hnh

Filter Criteria.

Hnh 5.18 Chn kt ni S7200.OPCServer

Click vo ti S7-

Documents

DATN-Nghien Cuu WinCC Ket Noi Va DK PLC