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PH LC I :Thc hnh t chc h SCADA vi phn mm WinCC 6.0cho bi ton iu khin dy chuyn ng gi thuc

1.M t h thng

Hnh 1: S h iu khin ng gi thuca) M hnh h thng gm c :+ M : ng c bng ti+ Y : Van rt thuc+ B1 : Tia hng ngoi m s thuc rt ra.+ B2 : C hn v, nh v v tr rt thuc.+ C 3 loi ng gi thuc: ng 4 vin/hp,6 vin/hp,8 vin/hp.

b) Yu cu thc hin iu khin hot ng ca h thng:n nt Start,sau chn loi ng gi,nu hp thuc khng v tr rt thuc

bng ti M chy, n khi hp thuc gp v tr rt thuc th bng ti M dng,vanrt thuc Y m.S thuc rt ra bng vi loi ng gi chn (4 hoc 6 hoc 8)th van rt thuc Y ng, bng ti M li chy.

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c) Ch :Vic n nt chn loi ng gi c thc hin ngay trong khi h thng ang

hot ng.V khi van rt thuc Y ang hot ng th vic n nt chn loi nggi khc s c thc hin hp sau ch khng phi hp ang c rt .Khi

n nt Stop th ton b h thng phi c dng ngay lp tc.

2.Lp trnh cho PLC S7-200

S ghp ni trn PLC:

Hnh 2.S ghp ni PLC.Chng trnh iu khin trn PLC S7-200 c lp trnh m bo thc hin

cc yu cu ca bi ton.Trong chng trnh PLC ta s dng thm cc khiMBUS_INT v MBUS_SLAVE thc hin truyn thng PLC v phn mmSCADA/ HMI.

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Chng trnh iu khin ng gi thuc vit trong LAD:

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3. Thit lp chng trnh trn WinCCBc 1: Khi ng WinCCT Start > Simatic > WinCC > Window Control Center 6.0Bc 2: To Project mi

Chn Single-User Project >Ok. t tn cho Project DEMTHUOC v chnng dn cho d n ti D.Nhn Creat c c ca s nh sau:

Hnh 3

Hnh 4

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Hnh 5

Bc 3: Chn Driver thit lp s kt ni truyn thng gia WinCC v PLC trong bi ny ta

chn OPC.T ca s chnh chn Tag Management kch chut phi chn AddNew Driver.Hp thoi Add New Driver hin ra nhp chn Driver OPC. Sau kch Open.

Hnh 6

Driver OPC c to ra bn di Tag Management.Nhp phi chut voOPC group chn New Driver connect.Hp thoi hin ra t tn PLC1 > OK.

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Hnh 7

Bc 4: To cc Tag.Trong bi s dng c tag ni v tag ngoi. Kch chut phi vo PLC1 >New

Tag. Nhp tn cn t v kiu d liu.

Hnh 8

To cc tag ngoi: sau khi nhn vo System Parameter > Locall ta c bngthng bo sau:

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Hnh 9

Nhn chut tri chn National Instruments OPCLookoutDrivers > chn BrowseServer c bng nh sau:

Hnh 10

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Chn next c bng thng bo ta chn cc a ch thit lp trong IndustrialAutomation OPC server.

Hnh 11

-To knh kt ni cho plc1.

Hnh 12

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- Chn Finish.- Sau chn Tag Q0.0 > add Item > chn plc1> Finish.- Lm tng t vi cc Tag khc ta c bng nh sau

Hnh 13

To Tag ni:Kch chut phi Internal Tags > chn new Tag. Bng thng bo Tag

properties ta t tn; loi d liu sau nhn OK.

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Hnh 14

Lm cc bc tng t nh trn ta c bng Tag ni nh sau:

Hnh 15

Bc 5: Thit k Graphic.

Vo biu tng Graphic nhn chut phi chn new picture > Rename picture ttn: m thuc

Hnh 16

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- Ta c giao din nh sau:

/

Hnh 17

Vo th vin dislay library trn thanh cng c > Siemen HMI Symbol Library> >motor > Simple motor4.

Hnh 18

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Dng cng c Polygon; line to bn ng thuc v bng truyn. Tip tcvo th vin chn th mc Plant Elements > Valves.

Hnh 19

Tng t ta chn cc thit b cn li.Vo Pices- smart chn 3D PipeVertical. Vo thanh cng c chn Ellipse to

cc hnh vin thuc.Kt ni cc thit b ta c hnh v nh sau:

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Hnh 20Vit code cho cc Event

Nhn chut phi vo Start > Properties > Event > Mouse > kch chut phi voMouse action chn C action. Bng Edit Action hin ra nh sau:

Hnh 21Tr li hp thoi Object Properties lc ny biu tng mi tn mc Mouse

Action chuyn sang mu xanh nh hnh di:

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Hnh 22 chn thuc tnh cho cc s kin ta vo mc Properties. to thuc tnh cho cc i tng ta lm nh sau:Kch chut phi vo i tng ( v d: ng c bng ti) chn Properties bng

Object Properties hin ra chn Properties > Control Properties.

Hnh 23

cc biu tng thay i trng thi khi hot ng ta link cc thuc tnh n

tag ca i tng .

.

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Hnh 24Tng t nh trn, thit lp cc thuc tnh ca cc i tng cn li trn giao

din nh : van; n bo, cc cm bin.

Hnh 25: Giao din chng trnh iu khin gim stCode chng trnh:

#include "apdefap.h"void OnClick(char* lpszPictureName, char* lpszObjectName, char*lpszPropertyName){int a,b,c,d,e,f,k,h,j;while (1)

{a= GetTagBit("Q0_0"); //Return-Type: BOOL

b=GetTagBit("Q0_1"); //Return-Type: BOOLc=GetTagBit("I0_5"); //Return-Type: BOOLd=GetTagBit("I0_1"); //Return-Type: BOOLe=GetTagBit("I0_2"); //Return-Type: BOOLf=GetTagBit("I0_3"); //Return-Type: BOOL

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k=GetTagBit("I0_6"); //Return-Type: BOOL// Hien thi bang tai;

if (b==1)SetTagBit("BangTai",1); //Return-Type: BOOL

elseSetTagBit("BangTai",0); //Return-Type: BOOL

// Hien thi van thuoc Y;if (a==1)

SetTagBit("VanY",1); //Return-Type: BOOLelse

SetTagBit("VanY",0); //Return-Type: BOOL// Hien thi cam bien 1;

if ( c==1)

SetTagBit("CB1",1); //Return-Type: BOOLelse

SetTagBit("CB1",0); //Return-Type: BOOL// Hien thi cam bien 2;

if (k==1){

SetTagBit("CB2",1); //Return-Type: BOOLSetTagByte("Demthuoc",0); //Return-Type: BOOL

}else

SetTagBit("CB2",0); //Return-Type: BOOL// Hien thi kieu dong thuoc;

if (d==1)

SetTagFloat("KieuDongThuoc",4);//Return-Type: BOOL

else{

if (e==1)SetTagFloat("KieuDongThuoc",6);//Return-Type: BOOL

else{ if (f==1)

SetTagFloat("KieuDongThuoc",8);//Return-Type: BOOL}

}

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}}