hsc1 s7-200

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Bin son: Ths. T Vn Phng Trang 1

BI 1: B M TC CAO (HSC: HIGH SPEED COUNTER).1. Gii thiu v HSC.

B m thng: B m thng trong PLC nh m ln (CTU), m xung(CTD),

m ln xung(CTUD), ch m c cc s kin xy ra vi tn s thp( Chu k xut hinca s kin nh hn chu k qut ca PLC).

HSC l b m tc cao, c s dng m nhng s kin xy ra vi tn sln m cc b m thng thng trong PLC khng m c. VD: Tn hiu xung tencoder2. S lng b m HSC c trong PLC v tn s ti a cho php.Ty thuc vo loi CPU m s lng b m HSC v tc ti a cho php khc nhau.

B m Ng vo Tn s cho php Loi CPUsHC0 I0.0 30 kHz 221,222,224,224XP,226

HC1 I0.6 30 kHz 221,222,224,224XP,226HC2 I1.2 30 kHz 221,222,224,224XP,226HC3 I0.1 30 kHz 221,222,224,224XP,226HC4 I0.3 200 kHz 224XPHC5 I0.4 200 kHz 224XP

3. Vng nh c bit s dng lp trnh cho HSC.Mi HSC c mt vng nh c bit ring, vng nh ny c s dng khai bo chnmode m, t gi tr, lu gi tr m cho HSC tng ng.STT B m Vng nh khai bo Ch thch

1 HSC0 SMB36 n SMB45 Mi HSC s dng 10 byte2 HSC1 SMB46 n SMB553 HSC2 SMB56 n SMB654 HSC3 SMB136 n SMB1455 HSC4 SMB146 n SMB1556 HSC5 SMB156 n SMB1654. Cc Mode m ca b m:Mi b m u c nhng Mode m khc nhau. Ty vo tng ng dng c th

m ngi lp trnh la chn Mode m cho ph hp. Di y trnh by Modem ca cc b m tiu biu.

HSC0 (Ch c 1 Mode m)Mode c im I0.00 B m 1 pha, thay i hng m bn trong

SM37.3 = 1: m ln.SM37.3 = 0: m xung.

Ng vo nhn xung

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HSC1 (C tt c 12 Mode m khc nhau).Mode c im I0.6 I0.7 I1.0 I1.1

012

B m ln/xungSMB47.3 = 0: m xungSMB47.3 = 1: m ln

Clock ResetStart

345

Thay i hng mI0.7 = 0: m xungI0.7 = 1: m ln

Clock Dir ResetStart

678

m 2 pha vi ng vo xung Ckm ln v m xung Ck up Ck down Reset

Start91011

m lch pha.Pha A,B lch nhau90 m xung

ClockA

ClockB Reset

Start

HSC2 (C tt c 12 Mode m khc nhau).Mode c im I1.2 I1.3 I1.4 I1.5

012

B m ln/xungSMB57.3 = 0: m xungSMB57.3 = 1: m ln

Clock ResetStart

345

Thay i hng mI1.3 = 0: m xungI1.3 = 1: m ln

Clock Dir ResetStart

678

m 2 pha vi ng vo xung Ckm ln v m xung Ck up Ck down Reset

Start91011

m lch pha.Pha A,B lch nhau90 m xung

ClockA

ClockB Reset

Start

Kim tra cc b m h tr bao nhiu mode!

5. ngha ca byte trng thi khi lp trnh cho HSC.

5.1 Byte trng thi ca HSC0.

SM36.0 Khng s dng

SM36.1 Khng s dng

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SM36.2 Khng s dng

SM36.3 Khng s dng

SM36.4 Khng s dng

SM36.5 Chiu ang m, 1:m ln, 0:m xung.

SM36.6 Kt qu so snh tc thi, 0:Nu CV PV, 1:Nu CV = PV

SM36.7 Kt qu so snh tc thi, 0:Nu CV PV, 1:Nu CV > PV


SM46.0 Khng s dng

SM46.1 Khng s dng

SM46.2 Khng s dng

SM46.3 Khng s dng

SM46.4 Khng s dng





SM56.0 Khng s dng

SM56.1 Khng s dng

SM56.2 Khng s dng

SM56.3 Khng s dng

SM56.4 Khng s dng



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6. ngha cc bit ca byte iu khin thi khi lp trnh cho HSC.6.1 Byte iu khin ca HSC0

SM37.0 Khng s dng

SM37.1 Khng s dng

SM37.2 Khng s dng

SM37.3 Chiu m: 0 m li, 1 : m ln

SM37.4 Cho php i chiu m, 0: khng cho php, 1: cho php

SM37.5 Cho php sa i gi tr t trc,0: khng cho php,1: chophp

SM37.6 Cho php sa i gi tr m tc thi, 0: khng cho php, 1:cho php

SM37.7 1- Cho php kch HSC0, 0:Khng cho php HSC0

6.2 Byte iu khin ca HSC1.

SM47.0 Kiu reset cho tn hiu xa ti cng I1.0SM47.1 Kiu start cho tn hiu kch ti cng I1.1

SM47.2 Tn s m ca HSC1



SM47.5 Cho php sa i gi tr t trc, 0: khng cho php, 1: cho

phpSM47.6 Cho php sa i gi tr m tc thi, 0: khng cho php, 1:

cho php

SM47.7 1- Cho php kch HSC1, 0:Khng cho phpHSC1

6.3 Byte iu khin ca HSC2.

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SM57.0 Kiu reset cho tn hiu xa ti cng I1.0

SM57.1 Kiu start cho tn hiu kch ti cng I1.1

SM57.2 Tn s m ca HSC2



SM57.5 Cho php sa i gi tr t trc, 0: khng cho php, 1: chophp

SM57.6 Cho php sa i gi tr m tc thi, 0: khng cho php, 1:cho php

SM57.7 1- cho php kch HSC2, 0 cho php hy HSC2

7 Chn kiu Reset, Start v tn s m cho HSC

HSC1 HSC2 Ghi chSM47.0 SM57.0 0: Reset mc cao 1: Reset mc thpSM47.1 SM57.1 0: Start mc cao 1: Start mc thpSM47.2 SM57.2 0: 4X gi tr m 1: 1X gi tr m

8 Byte trng thi v byte iu khin ca HSC3,HSC4,HSC5

B m Byte trng thi Byte iu khin Ghi chHSC3 SMD136 SMD137HSC4 SMD146 SMD147HSC5 SMD156 SMD157

9 Gi tr tc thi, gi tr t.

B m Gi tr tc thi Gi tr t Ghi chHSC0 SMD38 SMD42HSC1 SMD48 SMD52HSC2 SMD58 SMD62HSC3 SMD148 SMD142HSC4 SMD158 SMD152HSC5 SMD168 SMD162

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10 Cc bc khi to b m HSCDng chu k qut u tin(SM0.1) gi chng trnh con khi to. Trongchng trnh con khi to thc hin cc cng vic sau y. Np gi tr cho byte iu khin. Gn b m vi Mode m tng ng dng lnh HDEF Np gi tr tc thi. Np gi tr t trc. Gn chng trnh ngt vi s kin ngt dng lnh ATCH nu s dng ngt. Cho php ngt dng lnh ENI. Chn b m thc thi dng lnh HSC.

Lu : Ton b cc bc trn u c thc hin trong mt chng trnh conkhi to HSC0. Vic khi to ny ch thc hin mt ln, khi no cn thay i gitr, ch lm vic th mi khi to li.

11. Mt vi v d khi to HSC.

11.1 Khi to b m HSC0 hot ng Mode 0.Chng trnh chnh.

Chng trnh con khi to.

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11.2 Khi to b m HSC1 hot ng Mode 0.Chng trnh chnh.


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BI TP NG DNG HSC.

Bi tp 1: Lp trnh vi HSC0.- Vit chng trnh khi to b m HSC0 hot ng Mode 0. Xut kt qum ra vng nh QW2.

- To xung CK c tn s 1hZ ti Q0.0 cp vo ng vo xung Clock, quan sttrng thi ng ra ti QW2 khi HSC0 hot ng Mode 0.

- V s kt ni phn cng v vit li on chng trnh khi HSC0 hotng Mode 0

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Bi tp 2: Lp trnh vi HSC1.- Vit chng trnh khi to b m HSC1 hot ng Mode 1, ch 1X,

xut kt qu m ra vng nh QW2.- To xung CK c tn s 1hZ ti Q0.0 cp vo ng vo xung Clock, quan st

trng thi ng ra ti QW2 khi HSC1 hot ng Mode 1. Trong qu trnh

hot ng, tc ng chn Reset kim tra vic xa b m.- V s kt ni ng vo xung CK.

Bi tp 3: Lp trnh vi HSC1.- Vit chng trnh khi to b m HSC1 hot ng Mode,2,3,4,5. Xut

kt qu m ra vng nh QW2. Trong mi trng hp, tc ng xungClock,Reset,Start dng cc Switch kim tra kt qu ti ng ra.

- To xung CK c tn s 0.5hZ ti Q0.0 cp vo ng vo xung Clock, quanst trng thi ng ra ti QW2 khi HSC1 hot ng Mode 4.

- V s kt ni phn cng khi HSC1 hot ng Mode 4.Bi tp 4: Lp trnh vi HSC2.

- Vit chng trnh khi to b m HSC2 hot ng Mode,2,3,4,5. Xut ktqu m ra vng nh QW2. Trong mi trng hp, tc ng xungClock,Reset,Start dng cc Switch kim tra kt qu ti ng ra.- To xung CK c tn s 0.5hZ ti Q0.0 cp vo ng vo xung Clock, quan

st trng thi ng ra ti QW2 khi HSC2 hot ng Mode 4.- V s kt ni phn cng khi HSC2 hot ng Mode 4.

Bi tp 5: Lp trnh vi HSC3.

- Vit chng trnh khi to b m HSC3 hot ng Mode 4,5,6. Xut ktqu m ra vng nh QW2. Trong mi trng hp, tc ng xung

Clock,Reset,Start dng cc Switch kim tra kt qu ti ng ra.- To xung CK c tn s 0.5hZ ti Q0.0 cp vo ng vo xung Clock, quanst trng thi ng ra ti QW2 khi HSC3 hot ng Mode 5.

- V s kt ni phn cng khi HSC3 hot ng Mode 5

Bi tp 6: Lp trnh vi HSC4.- Vit chng trnh khi to b m HSC4 hot ng Mode 5,6,7. Xut kt

qu m ra vng nh QW2. Trong mi trng hp, tc ng xungClock,Reset,Start dng cc Switch kim tra kt qu ti ng ra.

- To xung CK c tn s 0.5hZ ti Q0.0 cp vo ng vo xung Clock, quanst trng thi ng ra ti QW2 khi HSC4 hot ng Mode 5.

Bi tp 7: Lp trnh vi HSC5.- Vit chng trnh khi to b m HSC5 hot ng Mode 6,7,8. Xut kt

qu m ra vng nh QW2. Trong mi trng hp, tc ng xungClock,Reset,Start dng cc Switch kim tra kt qu ti ng ra.

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Bi tp 8: o v hin th tc ng c DC.- Kt ni m hnh iu khin ng c DC vi PLC.- Ln lt s dng cc b m HS0 n HSC5 o v hin th tc ng

c DC ra vng/pht.

Bi 2: B PHT XUNG V IU CH RNG XUNG(PLS: PULSE OUTPUT INSTRUCTION & PWM:PULSE WIDE MODULATION).

1. Gii thiu v PLS v PWM.PLS(PULSE OUTPUT INSTRUCTION): c s dng iu khin pht

chui xung ng ra PTO (Pulse Train Output).PWM (Pulse Wide Modulation): iu ch rng xung.S7 200 h tr 2 ng ra Q0.0 v Q0.1 pht xung PLS/PWM vi tn s ln (c

th ln n 30khZ). Vi tn s ny th cc ng ra bnh thng, hot ng ph

thuc vo chu k qut ca PLC khng th pht c.PLS: iu khin pht xung vung(PTO) vi chu k thay i t 50uS n65535uS hay t 2mS n 65535mS.S lng xung pht nm trong khong t 1n 4,294,967,295.

PWM: Pht xung vi chu k v rng xung c th thay i c.Chu k: T 50uS n 65535uS hay t 2mS n 65535mS.

rng xung: T 0 n 65535uS hay t 0 n 65535mS.2. Vng nh c bit c s dng khi lp trnh iu khin PTO v PWM.2.1 Byte iu khin.

Ty thuc vo vic s dng ng ra Q0.0 hay Q0.1 ch PTO hay PWMv tn s mong mun m ngi lp trnh np cc gi tr thch hp vo byte iukhin SMB67 hay SMB77.

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2.2 Cc vng nh c bit khc.

2.3 Cc gi tr np cho byte iu khin v kt qu thc hin.

2.4 Cc bc khi to b pht xung.S dng chu k qut u tin gi chng trnh con khi to PLS. Trong

chng trnh con khi to thc hin cc cng vic sau.1. Np gi tr cho byte iu khin chn ch pht theo yu cu.2. Np gi tr thi gian chn chu k.

3. Np gi tr chn s lng xung pht.4. Gn chng trnh ngt vi s kin ngt tng ng.5. Cho php ngt.6. Thc hin lnh PLS pht xung.

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2.4.1 Khi to PTO pht 10 xung vung, tn s 1hZ(Chu k 1 giy).Chng trnh chnh.


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2.4.2. Khi to PTO pht 1000 xung tn s 1kHz ti ng ra Q0.12.5 Cc bc khi to b PWM.S dng chu k qut u tin gi chng trnh con khi to PWM. Trongchng trnh con khi to thc hin cc cng vic sau.1. Np gi tr cho byte iu khin chn ch pht theo yu cu.

2. Np gi tr thi gian chn chu k.3. Np gi tr thi gian chn rng xung.4. Thc hin lnh PLS pht xung.2.5.1 Khi to pht xung vung tn s 1hZ ti ng ra Q0.1 dng PWM.

Chng trnh chnh

Chng trnh con khi to

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2.5.2 Khi to pht xung vung tn s 1kHZ ti ng ra Q0.0 dng PWM.

2.6 BI TP NG DNG.

2.6.1 Vit chng trnh iu khin PTO pht xung theo yu cu:

Mi ln nhn START, pht 20 xung tn s 1hZ ti ng ra Q0.0.

2.6.2. Vit chng trnh iu khin PTO pht xung theo yu cu:Mi ln nhn START, pht 20 xung tn s 1hZ ti ng ra Q0.1.

2.6.3. Vit chng trnh iu khin PTO pht xung ti Q0.0 theo yu cu.Nhn START: Pht xung 10hZ ti Q0.0Mi ln nhn Up: Tn s tng thm 2hZ, ti a khng qu 20hZ.Mi ln nhn Down: Tn s gim i 2hZ. Ti thiu khng qu 2hZ.

Symbol Address commentSTART I0.0Up I0.1Down I0.2PULSE Q0.0

2.6.4. Vit chng trnh khi to pht xung PWM ti Q0.0 vi chu k 1 giy, rng xung 0,5 giy.Chng trnh.2.6.7 Vit chng trnh iu khin Q0.0 hot ng theo 2 Mode.

Mode 1: Pht xung vung tn vi Cycle = 1 giy, duty = 5 giy nh H2.1.

duty

Cycle Hnh 2.1

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Mode 2: Cycle = 1 giy.S dng Module analog, chn tm in p vo t 5V. Dng bin tr chnh duty:Khi in p vo bng 0V th duty = 0, khi in p vo bng 5V th duty = 10 giy.Bng m t a chSymbol Address comment

Mode1 I0.0Mode2 I0.1PULSE Q0.0

2.6.8 Vit chng trnh iu khin Q0.0 v Q0.1 hot ng nh Hnh 2.2. . Bitrng tn s pht ra tai Q0.0 v Q0.1 l 2hZ.

2.7 Bi tp nng cao.

Cho mt h thng gm c 3 i tng cn iu khin: Ball Screw, Disc Table vBelt and Pulley c cc thng s nh hnh 2.3.

20 xung

20 xung

20 xung

Q0.0

Q0.1

Hnh 2.2

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2.7.1. iu khin Ball Srew.M t h thng. Mt ng c servo c s dng iu khin mt con

trt thng qua mt trc vit. Trn trc vit c gn mt encoder 13 bit. Bc ren catrc vit l 6mm. Khong cch dch chuyn ca bc ren khi c mt xung iukhin l 1um.

Hy vit chng trnh iu khin ng c servo hot ng theo yu cu:

Mi ln nhn con trt di chuyn c mt khong l 5cm.2.7.2. iu khin Disc Table.M t h thng. Mt ng c servo c s dng iu khin mt bn

quay. Mt encoder 13 bit c gn vi trc ca bn thng qua b gear ( hp s)c t s truyn l 3/1. Gc quay ca bn khi c mt xung iu khin l 0.1 .

Hy vit chng trnh iu khin ng c hot ng theo yu cu: Miln nhn start bn quay c mt gc 90 .2.7.3. iu khin Belt v Bulley.

Hy vit chng trnh iu khin ng c hot ng theo yu cu: Miln nhn start bng ti quay c 20 cm.

Hnh 2.3

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Bi 3 : HOT NG NGT CA S7 200

3.1 Gii thiu v ngt trong S7 200.Ngt l qu trnh m s7 200 dng chng trnh ang thc thi thc hin

chng trnh ngt khi c yu cu(c s kin gy ra ngt xy ra). Sau khi thchin xong chng trnh ngt th s7 200 s quay v chng trnh ang thc hintrc khi xy ra ngt thc hin tip.

Khi c nhiu yu cu ngt xy ra ng thi th cc ngt s thc hin theoth t u tin t ngt c mc u cao nht n ngt c mc u tin thp nht.

Ty thuc vo loi CPU m s lng ngt cng nh s kin ngt c khcnhau.

3.2 Cc lnh s dng khi lp trnh iu khin ngt.

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3.3 Cc s kin gy ra ngt trong S7 200.

STT Describtion CPU 221CPU 222

CPU 224 CPU 226CPU 226XM

0 Rising edge I0.0 X X X1 Falling edge I0.0 X X X2 Rising edge I0.1 X X X3 Falling edge I0.1 X X X4 Rising edge I0.2 X X X5 Falling edge I0.2 X X X

6 Rising edge I0.3 X X X7 Falling edge I0.3 X X X8 Port 0 Receive Charactor X X X9 Port 0 Transmit Complete X X X10 Timed interrupt 0 SMB 34 X X X11 Timed interrupt 1 SMB 35 X X X12 HSC0 CV = PV X X X

Lnh cho php ngt ton cc

Lnh cm ngt ton cc

Lnh thot khi chng trnh ngt.

Lnh gn chng trnh ngt vi skin ngt tng ng.

Lnh loi b chng trnh ngt vis kin ngt tng ng.

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13 HSC1 CV = CV X X14 HSC1 Direction changed X X15 HSC1 Reset external X X16 HSC2 CV = CV X X17 HSC2 Direction changed X X

18 HSC2 Reset external X X19 PLS0 PTO pulse count

complet interruptX X X

20 PLS1 PT1 pulse count completinterrupt

X X X

21 Timer T32 CT = PT complet. X X X22 Timer T96 CT = PT complet. X X X23 Port 0 receive massage

completX X X

24 Port 1 receive massagecomplet

X

25 Port 1 receive character X26 Port 1 Transmit complete X27 HSC0 Direction changed X X X28 HSC0 External reset X X X29 HSC4 PV = CV X X X30 HSC4 Direction changed X X X31 HSC4 External reset X X X32 HSC3 PV = CV X X X33 HSC5 PV = CV X X X

Lu : Mt chng trnh ngt c th c gi bi nhiu s kin ngt, Tuy nhinmt s kin ngt th khng th gn cho nhiu chng trnh ngt.3.4 Cc bc lp trnh khi s dng ngt.

Tt c cc ngt phi c khi to trc khi lm vic. Vic khi to ccngt nn thc thi mt ln(SM0.1) trong chng trnh, ch khi no cn thay i ccthng s trong qu trnh khi to th mi khi to li.

Mi ngt u c cch khi to ring, tip theo s trnh by vic khi to mts ngt c bn.

3.4.1 Khi to ngt cnh ln ti I0.0 (S kin 0).Chng trnh chnh.(Gi chng trnh con khi to ngt).

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Chng trnh con KhoitaoI0: ( Gn chng trnh ngt vi s kin ngt tng ng,cho php ngt).

Chng trnh ngt ngatI0: Mi ln c cnh ln ti I0.0 th chng trnh ngt cgi. Trong v d ny, chng trnh ngt c nhim v tng gi tr QB0 thm 1.

Tng t nh trn, ngi lp trnh c th khi to ngt cho cc ng vo cn li.

3.4.2 Khi to ngt nh thi 0: Timed interrupt0

Chng trnh chnh.(Gi chng trnh con khi to ngt).

Chng trnh con KhoitaoTimer0: ( Np thi gian gy ra ngt, gn chng trnhngt vi s kin ngt tng ng, cho php ngt).

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Chng trnh ngt ngatTimer0: Sau mt khong thi gian 200mS th chng trnhngt c gi. Trong v d ny, chng trnh ngt c nhim v gim gi tr QB0thm 1.

Tng t nh trn, ngi lp trnh c th khi to ngt cho Timer1

3.4.3 Vit chng trnh iu khin QB0 hot ng nh sau:Nhn Up, QB0 tng thm 1.Nhn Down, QB0 gim i 1.Nhn STOP, QB0 = 0.Bng m t a ch vo ra

Symbol Address commentUp I0.0Down I0.1STOP I0.4BIENDEM QB0

3.4.4 Vit chng trnh iu khin QB0 hot ng nh sau:Nhn Up1 hoc Up2 hot Up3, QB0 tng thm 1.Nhn Down, QB0 gim i 1.

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Nhn STOP, QB0 = 0.Bng m t a ch vo ra.

Symbol Address commentUp1 I0.0

Up2 I0.1Up3 I0.2Down I0.3STOP I0.4BIENDEM QB0

3.4.5 Vit chng trnh Q0.0 pht trung vi tn s f = 200hZ:

Symbol Address commentSTART I0.0 Cho php pht

STOP I0.1 Ngng phtCk Q0.0 Ng ra xung

3.4.6 Vit chng trnh c d liu analog ti ng vo AIW0 sau mi khong thigian 200mS iu khin QB0 theo yu cu. Khi in p ng vo nh hn 5V th QB0=0FFh. Khi in p ng vo ln hn 5,5V th QB0 = 00h. Khi in p ng vo ln hn 5V v nh hn 5,5V th QB0 gi nguyn trng

thi trc .

Bng m t a ch vo ra.Symbol Address commentSTART I0.0 Cho php c analogSTOP I0.1 Khng cho php cBIENDEM QB0

3.4.7 Vit chng trnh iu khin QB0 hot ng nh sau:C sau mt khong thi gian 1 giy QB0 tng thm 1, khi QB0=10 th gim

theo chiu ngc li. Khi QB0 = 0 th lp li qu trnh trn.Bng m t a ch vo ra.

Symbol Address commentSTART I0.0 Cho phpSTOP I0.1 Khng cho phpBIENDEM QB0

3.4.8 Vit chng trnh thc hin yu cu sau y.

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- Pht chui xung tn s 1khZ ti ng ra Q0.0 dng PT0.- Khi to HSC2 hot ng Mode 2 m xung ti Q0.0- Gi tr m c lu vo MW2.

3.4.9 Vit chng trnh thc hin yu cu sau y.- Pht chui xung tn s 10khZ ti ng ra Q0.0 dng PT0.

- Khi to HSC3 hot ng Mode 4 m xung ti Q0.0- Gi tr m c lu vo MW2.- Khi MW2 = 1000 th ngng m.

Vit chng trnh: (S dng ngt ca PT0 ngng m).3.4.10 Vit chng trnh thc hin yu cu sau:

- Pht chui xung ti Q0.1 tn s 10khZ gi lp xung ca mt encoder cgn trn trc ng c.

- Khi to HSC1 hot ng Mode 2 m s xung ti Q0.0.- Khi to ngt ca Timer c s xung m c trong khong thi gian

ly mu Ts.

Gi s encoder c thng s 1000 xung/vng. Hy vit chng trnh tnh tc ng c ra vng/pht.

Bi 4 : WINCC FLEXIBLE V HMI

4.1 Gii thiu v WinCC Flexible.

Wincc flexible l phn mm SCADA c thit k bi hng Microsoft theo

yu cu Siemens nhm phc v cho vic gim st v thu thp d liu trong h

thng SCADA s dng cc thit b ca SIEMENS nh cc PLC S7-200, S7-300,

S7-400.

Hnh 4.1 WinCC Flexible gim st PLC

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WinCC Flexible rt linh hot trong vic gim st c th chuyn i d dng

gia cc kt ni. Giao din rt thn thin gn gi vi ngi s dng, ngoi ra cn

h tr ngn ng lp trnh hng i tng VisualBasic.

c im ni bt nht ca WinCC Flexible so vi WinCC SCADA chnh l nh tr nhng tnh nng rt mnh cho vic thit k cc giao din, thit lp giao din

cng nh lp trnh cho cc loi mn hnh HMI.

4.2 Mt s thuc tnh ni bt trong WinCC Flexible.

Hnh 4.2: Mt s mn hnh HMI c tch hp trong WinCC Flexible.

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4.3 Thit lp giao thc kt ni.

WinCC Flexible cung cp cc giao thc kt gia HMI v s7-200, s7-300 v

s7-400. Cc kt ni c th qua MPI, DP, Profibus, Ethernet

4.2.2 Kt ni gia HMI vi s7-200.

4.2.3 Kt ni gia HMI vi s7-300/s7-400.

Hnh 4.3. Thit lp giao tip gia HMI vi s7 200.

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4.2.4 Thit lp kt ni gia HMI vi s7 300 qua ethernet.

Hnh 4.5 Thit lp thng s kt ni qua Ethernet

Hnh 4.4: Thit lp giao tip gia HMI vi s7 300 qua MPI.

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Giao thc kt ni Ethernet theo chun IP. Ta chi cn khai bo i ch IP cho cc

phn t kt ni trong mng.

4.3 Tags v Tags group.

WinCC Flexible giao tip cc thit b thng qua cc Tag. WinCC Flex thc

hin tnh ton v truyn d liu thng qua tag xung thit b, d liu thu nhn t

thit b cng c thng qua tag v PLC.

C 2 loi tag: tag ni v tag ngoi:

Tag ni: c s dng tnh ton, lu tr trong ni ti ca WinCC, tag ni

khng giao tip vi cc b iu khin lp trnh bn ngoi. WinCC qun l tag

ni thng qua tn ca tag v kiu d liu tng ng. Chnh v vy trong mtchng trnh th tn ca tag phi l c nht.

Tag ngoi: L nhng vng nh bn trong b iu khin lp trnh hoc thit b

m phng. Tag ngoi lun gn vi mt a ch v kiu d liu nht nh.

WinCC qun l cc tag ngoi thng qua tn ca tag v a chca n.

hnh trn ta c Tag_1 l tag ni c kiu d liu l Int, Tag_2 l tag ngoi c kiu

d liu l Bool v i ch giao tip vi thit b bn ngoi l M0.0.

4.4 Thit k giao din (Screen) cho HMI.

Giao tip ca ngi v my iu thng qua mn hnh. V vy vic thit k

giao din cho ph hp vi mc ch s dng l iu ht sc quan trng.

Hnh 4.6 Thit lp Tag kt ni

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WinCC Flexible cung cp hu ht cc cng c thit k phc v cho vic thit

k giao din iu khin gim st.

Hnh 4.7 Giao din thit k ca WinCC Flexible

Menubar: L ni dng iu khin hot ng chnh ca vic thit k. N

cung cp cc cng c cng nh thit lp cc thng s cho giao din ca chng

ta.

Standar Toolbar: L ni cha cc nt cho php chng ta thc hin nhng lnh

mt cch nhanh chng.

Tool: Cung cp cho chng ta nhng i tng chun nh ( Polygon, Ellipse,

Rectangle,), cc i tng thong minh ( OLE control, OLE Elmnt, I/O

Field,) v cc i tng Windows ( Button, Check Box,).

Project: l ni cung cp cc dch v v iu khin hot ng ca giao din nh

tao ngt, to ra cc cc report.o Kch bn (Scrip)

Scrip l ni m ta to ra cc hot ng khi c s kch hot. Scrip c h tr vit

bng ngn ng Visual Basic. Trong Scrip h tr mt s c php chun ca cc

lnh.

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Hnh 4.7 Khi to Scrip

4.5 Mt s hm hay s dng trong chng trnh:

Inverbit

C php: Inverbit (Tag)

ngha: o ngc gi tr ca mt Tag kiu d liu l Binary.

Setbit

C php: Setbit (Tag)

ngha: t gi tr ca Tag = True vi kiu d liu l Binay.

Resetbit

C php: Resetbit (Tag)

ngha: t gi tr ca Tag = False vi kiu d liu l Binay.

SetbitInTag

C php: SetbitInTag (Tag,bit)

ngha: t gi tr l true cho v tr bit c xc nh trong Tag

ReSetbitInTag

C php: ReSetbitInTag (Tag,bit) ngha: t gi tr l False cho v tr bit c xc nh trong Tag

StopRuntime

C php: StopRuntime (Mode)

ngha: That khi Runtime ca WinCC.

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BI TP THC HNH.Bi 1: Mt n tn hiu giao thng c iu khin v gim st trng thi hot ngdng S7 200 kt hp vi HMI.

Thi gian hot ng ca cc n c nhp t HMI. Trng thi ca cc n chin th trn mn hnh HMI.Yu cu: Thit k giao din iu khin cho HMI. Vit chng trnh cho S7 200 v HMI iu khin v gim st trng thi ca

n.Gi cc bc thc hin.3.1 Kt ni n tn hiu giao thng vi S7 200.3.2 Vit chng trnh iu khin cho S7 200.3.3 Thit k giao din iu khin cho HMI t WinCC Flexible.

3.4 To cc tag kt ni v thit lp cc lin kt cho HMI.3.5 Download chng trnh vo HMI.3.6 Kt ni HMI vi S7 200 qua cp MPI.3.7 Cp ngun v kim tra hot ng.

Hnh 4.8 : Thit k giao din cho HMI dng WinCC Flexible.

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Bi 2: Mt ng c bc c iu khin v gim st trng thi hot ng dng S7200 kt hp vi HMI. ng c bc c Vcc = 12V, I = 2A v Degree/Step = 1.8.

ng c bc c iu khin quay thun, quay ngc, tng mt vng, gimmt vng, t s vng quay, gc quay, hin th vng quay, gc quay t HMI.Yu cu: Thit k giao din iu khin cho HMI. Vit chng trnh cho S7 200 v HMI iu khin v gim st trng thi hot

ng ca ng c bc.

Hnh 4.9: Giao din iu khin n giao thng ca HMI khi Runtime.

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Gi cc bc thc hin.3.1 Kt ning c bc vi S7 200.3.2 Vit chng trnh iu khin cho S7 200.3.3 Thit k giao din iu khin cho HMI t WinCC Flexible.3.4 To cc tag kt ni v thit lp cc lin kt cho HMI.

3.5 Download chng trnh vo HMI.3.6 Kt ni HMI vi S7 200 qua cp MPI.3.7 Cp ngun v kim tra hot ng.

Hnh 4.10: Thit k giao din iu khin ng c bc dng WinCC Flexible.

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Bi 3: Mt ng c DC c iu khin v gim st trng thi hot ng dng S7 200kt hp vi HMI. ng c bc c Vcc = 12V, I = 2A, trn trc ng c c gnencoder 300xung/vng.

ng c DC c iu khin v gim st tc t HMI.Yu cu: Thit k giao din iu khin cho HMI. Vit chng trnh cho S7 200 v HMI iu khin v gim st trng thi hot

ng ca ng c DC.Gi cc bc thc hin.3.1 Kt ni ng c DC vi S7 200.3.2 Vit chng trnh iu khin cho S7 200.3.3 Thit k giao din iu khin cho HMI t WinCC Flexible.3.4 To cc tag kt ni v thit lp cc lin kt cho HMI.3.5 Download chng trnh vo HMI.3.6 Kt ni HMI vi S7 200 qua cp MPI.

Hnh 4.11 Giao din iu khin ng c bc khi Runtime.

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3.7 Cp ngun v kim tra hot ng.

Hnh 4.13 Thit k giao din iu khin ng c DC dng WinCC Flexible.

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Hnh 4.14: Giao din iu khin ng c DC khi Runtime.

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Bi 5: KT NI V IU KHIN BIN TN SIEMEN G110

5.1 Gii thiu v bin tn G110.

5.1.1 Mt s c im chnh ca bin tn Siemen G110.

u ni cp n gin.

1 cng ra s cch ly bng opto

3 ng vo s khng cch ly

1 cng vo tng t

AIN: 0-10V Tn s chuyn mch cao lm gim n ca ng c khi lm vic.

Nhng chn la ngoi cho truyn thng vi PC, panel vn hnh c bn (BOP),

5.1.2 Cc c tnh lm vic.

Kt hp hm dng dng in DC.

Phng php iu khin V/f tuyn tnh (M~n)

Thi gian p ng chu k nhanh

Nhanh ti dng gii hn lm vic vi phn c kh dng t do

Vi chng trnh iu khin thi gian khi ng / dng ng c mm.

Yu cu: Sau khi hc xong hc vin phi thc hin c cc yu cu sau y.- Kho st c phn kt ni bin tn vi in p vo, in p ra, cng tc, nt

nhn, bin tr,ng c AC 3 pha.- Thit lp cc thng s iu khin bin tn t Keypad.- Thit lp cc thng s iu khin bin tn t Terminal ( cc cng tc, nt nhn,

bin tr).- Kt ni phn cng v vit chng trnh iu khin bin tn t ng ra s ca

PLC.- Kt ni phn cng v vit chng trnh iu khin bin tn t ng ra tng t

ca PLC.

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5.1.3 S kt ni bin tn Siemens G110

Hnh 5.1. S khi ca bin tn SIEMEN G110

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5.1.4 S kt ni ng lc v iu khin.

Hnh 5.2. S kt ni ng lc v iu khin

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Hnh 5.3 S kt ni theo chun ANALOG v USS

5.1.5 S dng mn hnh BOP.Mn hnh BOP hin th 5 s. Nhng Led 7 on s trnh bynhng tham s v gi tr ca nhng tham s, nhng tin nhn

v cnh bo v li, im t v gi tr hot ng. Nhngthng tin v tham s khng c lu trn mn hnh BOP ny.

5.1.6 Cc nt v chc nng.

Bng iu khin/

Nt nhnHm Chc nng

Trng thi

hin th

Trnh by trn mn hnh nhng gi tr ci t

trn bin tn

Khi ng

bin tn

Nhn nt ny khi ng bin tn. Nt ny

mc nh khng s dng c, nt ch s dng

c khi ci t thng s P0700 = 1

Tt bin

tn

OFF1: Nhn nt ny lm dng ng c theo

thi gian gim tc Nt ny mc nh khng s

dng c, nt ch s dng c khi ci t

thng s P0700 = 1

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OFF2: Nhn nt ny 2 ln (hay 1 ln nhng lu)

lm cho ng c dng nhanh. Hm ny lun s

dng c.

Thay ichiu quay

ca ng

c

Nhn nt ny i chiu quay ca ng c.Khi ng c i chiu, trn mn hnh s hin th

du - . Mc nh khng s dng, ch s dng

khi t thng s P0700 = 1.

Xoay nh

ng c

Nhn nt ny khi bin tn khng c tn hiu ra

lm cho ng c khi ng v chy ti tn s

xc nh. ng c dng khi th nt ny ra. Khi

ng c ang chy, nt ny khng c tc dng.

Hm

Nt ny s dng xem thng tin thm vo. Nt

lm vic bng cch nhn v gi nt, nt s ln

lut trnh chiu:

1. in p DC-Link (V)

2. Dng ra (A)

3. Tn s ng ra (Hz)

4. in p ng ra (V)

5. Gi tr la chn ti P0005 (nu P0005 t

trnh chiu gi tr 3. 4. 5. th nt s khng xut

hin li ln na).

Nhy hm: T tham s rxxxx hay Pxxxx nhn

nt ny s quay v r0000, ta c th thay i tham

s nu yu cu, nhn nt Fn ny li ln na t

r0000, s quay v tham s ban u.

Gin tr: nu xut hin cc cnh bo v cc

thng bo li, th cc thng tin ny c th gii tr

bng cch bn nt Fn

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Tham s

truy cp

Nhn nt ny dung truy cp tham s.

Tng gi trNhn nt ny tng gi tr hin hnh

Gim gi

tr

Nhn nt ny gim gi tr hin hnh

V d: t thng s P0004 = 7 ta lm cc bc sau:

Bc thc hin Kt qu trnh by

1. Nhn nt x l tham s

2. Nhn nt cho ti khi tham s P0004 xut hin

3. Nhn nt x l tham s

4. Nhn nt hay chn gi tr yu cu

5. Nhn nt xc nhn v lu tr gi tr

5.1.7 Cc thng s ci t nhanh.

B bin tn G110 tng thch vi ng c nh s dng chc nng ci t thng s

nhanh, v cc thng s k thut quan trng s c ci t. Ci t nhanh khng cn thc

hin nu thng s nh mc ca ng c ghi mc nh trong b bin tn thch hp vi

thng s nh mc ghi trn nhn ca ng c ang ni vo bin tn.

Thng s Chc nng

P0003

Mc truy nhp ca ngi s dng

1. Mc c bn: Cho php truy nhp ti thng s thng thngnht

2. M rng: V d truy cp ti cc chc nng I/O

3. Chuyn gia: Ch dnh cho chuyn giaP0010 Ci t thng s

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0. Sn sng

1. Ci t nhanh

30. Ci t nh my

P0100

Tiu chun Chu u/ Bc M

0. Chu u (KW), tn s mc nh 50Hz1. Bc M (hp), tn s mc nh 60Hz

2. Bc M (KW), tn s mc nh 60Hz

i vi P0100 = 0 hoc 1, gi tr P0100 c xc nh khi c i

t kha chuyn i DIP 50/60

OFF = kW, 50 Hz

ON = hp, 60 Hz

P0205

ng dng b bin tn (nhp vo khiu mmen yu cu)

0. Mmen khng i (v d nh thang my, my nn)

1. Mmen bin i (V d nh bm. qut)

Thng s ny ch c tc dng i vi b bin tn trong h

truyn ng 5.5 kW / 400V

P0300

Chn kiu ng c

1. ng c khng ng b (hay ng c d b)

2. ng c ng b

i vi P0300 = 2 (ng c khng ng b), ch c php

iu khin khiu V/f (P1300 < 20)

P0304

in p nh mc ghi trn nhn ng c (V)

in p nh mc ghi trn nhn ng c phi c kim tra, t

bit c cu hnh mch Y/ m bo ph hp vi cch ni

mch trn bng u ni ca ng c

P0305Dng in nh mc ca ng c (A) dng in ghi trn nhn

ca ng c

P0307 Cng sut nh mc ca ng c (kW/hp)

P0308H s cng sut (Cos) nh mc ca ng c

Nu nh ci t l 0, gi tr c t ng tnh ton

P0309Hiu sut nh mc ca ng c (%)


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Chuyn PLC 1


P0310Tn s nh mc ng c (Hz)

S i cc c t ng tnh ton li nu thng s thay i

P0311

Tc nh mc ng c (v/ph)


Cn phi nhp thng s trong trng hp iu khin vectmchkn, iu khin V/f vi FCC v b trt

P0320

Dng t ha ng c

Dng in t ha ng c tnh theo % P0305

Vi P0320 = 0, dng t ha ng c c tnh ton s dng

P0340 = 1 hoc s dng P3900 = 1 - 3 v c hin th trong

thng s r0331.

P0335

Chn ch lm mt ng c

0. Lm mt t nhin: S dng trc g qut gn vi ng c

1. Lm mt cng bc: S dng qut lm mt cp ngun ring

2. Lm mt t nhin l qut bn trong

3. Lm mt cng bc v qut bn trong

P0640

H s qu ti ng c

Tnh theo % tng ng vi P03005

H s ny xc nh gii hn dng in vo ln nht bng %

dng in nh mc ca ng c. Bng vic s dng P0205, thng

s ny c ci t ti 150% i vi mmen khng i v 110%

i vi mmen thay i

P0700

Chn ngun lnh (nhp ngun lnh)

0. Ci t mc nh

1. BOP (bn phm)

2. u ni

4. USS trn ng truyn BOP5. USS trn ng truyn COM (cc u ni 29 v 30)

6. CB trn ng truyn COM (CB = mun truyn thng)

P1000

La chn im t tn s

1. im t MOP

2. im t tng t

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3. Tn s c nh

4. USS trn ng truyn BOP

5. USS trn ng truyn COM

.

77. im t tng t 2 + im t tng t 2

P1080

Tn s nh nht cho ng c (Hz)

t tn s ng c nh nht ti ng c s chy m khng

tnh n tn s im t. Gi tr ci t y c tc dng cho c

quay thun v ngc.

P1082

Tn s ln nht cho ng c (Hz)

t tn s ng c ln nht ti ng c s chy m khng tnh

n tn s im t. Gi tr ci t y c tc dng cho c quay

thun v ngc.

P1120

Thi gian tng tc (s)

Thi gian tng tc l thi gian ng c tng tc t im dng

n im c tn s ln nht khi khng dng cch tng tc c dng

ng cong. Nu thi gian tng tc c t qu nh, iu ny c

th lm xut hin cnh bo A0501 (Gi tr gii hn dng) hoc

lm cho b bin tn ca h thng b dng vi li F0001 (qa dng)

P1121

Thi gian gim tc (s)Thi gian gim tc l thi gian ng c gim tc t im

tn s ln nht n im dng khi khng dng cch gim tc c

dng ng cong. Nu thi gian gim tc c t qu nh, iu

ny c th lm xut hin cnh bo A0501 (Gi tr gii hn dng),

A0502 (gi tr gii hn qu p) hoc lm cho b bin tn ca h

thng b dng vi li F0001 (qu dng) hoc F0002 (qu p ).

P1300

Mode iu khin

0. V/f khiu tuyn tnh1. V/f FCC

2. V/f kiu ng parabol

3. V/f kiu c th lp trnh c

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23. iu khin mmen xon vector c sensor

P1910 Chn d liu cho ng c

P1960

Ti u ha thit b iu khin tc

ti u ha thit b iu khin tc , phi bt ch iu

khin vector vng kn (P1300 = 20 hoc 21). Sau khi chn xongch ti u ho (P1960 = 1), th n bo A05452 khng hin th

P3900

Kt thc qu trnh ci t nhanh thng s

Bt u qu trnh tnh ton ng c

0. Khng ch ci t nhanh thng s

Qu trnh tnh ton ng c khng c

1. Ch nh my, nhng thng s khng c trong qu trnh

ci t nhanh .

2. Qu trnh tnh ton cc thng s ca ng c v ci t li

ch I/O theo ch nh mc

3. Ch tnh ton thng s ng c khng ci t li cc thng

s khc

5.1.5 Chn gi tr im t tn s

P1000: Chn gi tr t tn s

0 Khng c gi tr chnh

1 Gi tr t BOP

2 Gi tr t tng t

3 Tn s c nh

4 USS trn ng truyn BOP

5 USS trn ng truyn COM

.

77 Gi tr t tng t 2 + Gi tr t tng t 2 Cc bc thc hin ci t li cc thng s mc nh

P0003 = 1: Truy cp mc c bn

P0004 = 0: Lc tt c cc thng s

P0010 = 30: Ci t thng s ch ci t khi xut xng (mc nh)

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P0970 = 1: Ci t li thng s ch mc nh

Sau khi la chn xong cc thng s trn mn hnh BOP xut hin t BUSY bo hiu b

bin tn ang thc hin ch ci t li thng s mc nh (kho di khong 10 s) v sau

t ng thot khi ch ny. ng thi t li cc thng s sau:

P0970 = 0: Khng ci t mc nh.

P0010 = 0 Sn sng lm vic.

5.1.8 Bng m t cch thc truy xut cc hm ca bin tn

Hnh 5.3: S m t chc nng v mc cho php truy xut ca cc hm.

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BI TP THC HNH.

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5.2 iu khin tc ng c dng bin tn t mn hnh BOP. Thit lp nhanh thng scho bin tn.Kt ni phn cng nh Hnh 5.3.

Thit lp thng s theo trnh t sau:

Chn mc cho php truy xut: P003 = 1. Chn ch thit lp tham s cho bin tn. P010 = 1 Chn kiu hin th cng sut v tn s: P100 =0: KW v hz, P100 =1 hP v hZ. Chn in p, dng in, cng sut, tn s v tc ca ng c da vo thng s

ca ng c thng qua cc tham s P304,P305,P307,P310,P311.

Lu :Bin tn G110 bin i in p 1 pha 220ACthnh in p 3 pha 230V AC. Do vy ng c3 pha AC phi c u tam gic m bo ip p lm vic.trnh t sau

Hnh 5.3

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Chn ngun lnh iu khin bin tn: P0700 = 1: ( P004 =7). Chn gi tr t tn s cho bin tn: P1000 = 1: (P004 =10). Chn tn s Min: P1080 = 0. Chn tn s Max: P1082= 60hZ. Chn thi gian tng tc: P1020 = 10 giy. Chn thi gian gim tc: P1021 = 10 giy. Kt thc vic thit lp thng s cho bin tn: P3900 = 1.

iu khin bin tn hot ng. Nhn Start cho php bin tn hot ng. Nhn nt Up, Down thay i tc ca ng c.

Nhn o chiu ng c. Nhn Stop dng ng c.

Bi 5.3: iu khin tc ng c dng bin tn t mn hnh BOP. Khng s dng chc

nng thit lp nhanh thng s cho bin tn.Kt ni phn cng nh Hnh 5.3. Chn mc cho php truy xut: P003 = 1. Chn ch thit lp tham s cho bin tn. P010 = 1 Chn kiu hin th cng sut v tn s: P100 =0: KW v hz, P100 =1 hP v hZ. Chn in p, dng in, cng sut, tn s v tc ca ng c da vo thng s

ca ng c thng qua cc tham s P304,P305,P307,P310,P311.(P004 = 3).

Hnh 5.4

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Chn ngun lnh iu khin bin tn: P0700 = 1.(P004=7) Chn gi tr t tn s cho bin tn: P1000 = 1. (P004 =10). Chn tn s Min: P1080 = 0. Chn tn s Max: P1082= 60hZ. Chn thi gian tng tc: P1020 = 10 giy. Chn thi gian gim tc: P1021 = 10 giy. Chn mi quan h gia in p v tn s: P1300 = 0. (P004 =13). Thit lp c tuyn lm vic tn s v in p dng P1310, P1320, P1321,

P1322,P1323, P1324,P1325. theo Hnh 5.5

iu khin bin tn hot ng. Nhn Start cho php bin tn hot ng. Nhn nt Up, Down thay i tc ca ng c.

Nhn o chiu ng c. Nhn Stop dng ng c.

Hnh 5.5

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Bi 5.3: iu khin hot ng bin tn dng chc nng JOG. Thit lp cc thng s nh Hnh 5.6.

iu khin bin tn hot ng. Nhn Start cho php bin tn hot ng. Nhn JOG cho php ng c hot ng vi tn s t trc.

Nhn o chiu. Nhn Stop dng ng c.

Bi 5.4: iu khin bin tn dng kt ni bn ngoi. Kt ni phn cng nh Hnh 5.7

Hnh 5.6

Ghi ch:DIN0: Ng vo Start/StopDIN1: Ng vo o chiuDIN2: Ng vo xc nhnli.Cc tip im ng voDIN0, DIN1, DIN2 ciu khin bi cc nt nhn.

Hnh 5.7

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iu khin bin tn t cc kt ni bn ngoi, cc tham s phi c thit lp chn ng voiu khin nh bng

M t Chn ng vo Thng s thit lp Chc nng

Thay i tn s 9 P1000 = 2 Ng vo analogChn iu khin 3,4,5 P0700 = 2Ng vo s DIN0 3 P0701 = 1 ON/OFFNg vo s DIN1 4 P0702 = 12 RevertNg vo s DIN2 5 P0703 = 9 Fault AcknowledgeChn PP iu khin P0727 = 0 Simens standard

Control

iu khin bin tn hot ng. Nhn ON/OFF cho php bin tn hot ng ON/OFF = 1: Cho php, ON/OFF = 0: Khng

cho php.

Nhn Revert cho php ng c o chiu: Revert = 1: Quay thun, Revert = 0: Quaynghch. iu chnh bin tr tng gim tc cho ng c.

Bi 5.5: iu khin bin tn dng PLC. Kt ni phn cng nh Hnh 12.9

Hnh 5.8

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iu khin bin tn t cc kt ni t PLC, cc tham s phi c thit lp chn ng vo iukhin nh bng

M t Chn ng vo Thng s thit lp Chc nngThay i tn s 9 P1000 = 2 Ng vo analog

Chn iu khin 3,4,5 P0700 = 2Ng vo s DIN0 3 P0701 = 1 ON/OFFNg vo s DIN1 4 P0702 = 12 RevertNg vo s DIN2 5 P0703 = 9 Fault AcknowledgeChn PP iu khin P0727 = 0 Simens standard

Control

iu khin ng c dng bin tn. Xut tn hiu t PLC iu khin ng vo ON/OFF cho php bin tn hot ng ON/OFF =

1: Cho php, ON/OFF = 0: Khng cho php. Xut tn hiu t PLC iu khin ng vo Revert cho php ng c o chiu: Revert = 1:

Quay thun, Revert = 0: Quay nghch. Xut tn hiu analog iu khin ng vo ADC nhm tng gim tc ng c.

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hsc1 s7-200

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