bao cao nckh sv - spkt.10

Bo co NCKH sinh vin ln th 29

MS: SPKT.10

MC LC T VN ......................................................................................................................................2 1.Tn ti:......................................................................................................................................2 2.L do chn ti: .........................................................................................................................2 2.1. Yu cu nng cao hiu qu hc tp cc mn hc thuc lnh vc t ng ha trong nh trng............................................................................................................................................2 2.2. Tip tc hon thin cc m hnh phc v dy hc modun PLC ca Vin S phm k thut..............................................................................................................................................2 3.Mc tiu v nhim v nghin cu:................................................................................................3 3.1. Mc tiu ca ti................................................................................................................3 3.2. Nhim v nghin cu............................................................................................................3 4. Ni dung ca ti c chia thnh 3 chng:..........................................................................3 CHNG 1. NHNG VN CHUNG V BI XE T NG..........................................4 1.1.Khi nim v h thng xe t t ng nhiu tng...............................................................4 1.2.Mt s loi bi xe t ng....................................................................................................4 1.2.1 Bi xe t ng dng thang my.....................................................................................4 1.2.2. Bi xe t ng dng xp hnh.......................................................................................5 1.2.3. Bi xe t ng h thng xoay vng ng.....................................................................5 1.2.4. xe t ng h thng xoay vng ngang.........................................................................6 1.2.5. xe t ng h thng thp xe (Sky parking System).....................................................6 1.2.6. xe t ng h thng tng di chuyn.............................................................................7 1.3.La chn gii php cho bi ton thit k...................................................................................8 1.3.1. B phn truyn ng .........................................................................................................8 1.3.2. B phn iu khin.............................................................................................................8 CHNG 2. THIT K M HNH NH XE GIA NH T NG HAI TNG.......................9 2.1. Bi ton thit k.........................................................................................................................9 2.1.1. Yu cu thit k..................................................................................................................9 2.1.2. Thng k thit b s dng trong m hnh........................................................................10 2.1.3. Gii thiu v b iu khin PLC S7-200 ca Siemens...................................................10 2.2. Thit k m hnh......................................................................................................................13 2.2.1. Phn c kh.......................................................................................................................13 2.2.2. Phn in..........................................................................................................................13 2.2.3. Lp trnh phn mm.........................................................................................................15 CHNG 3. BIN SON TI LIU DY HC MODUN LP TRNH PLC C BN TRN M HNH NH XE GIA NH T NG HAI TNG...............................................................18 3.1. Nhng vn chung v o to ngh theo modun nng lc thc hin.................................18 3.1.1. Khi nim chung v modun.............................................................................................18 3.1.2. o to ngh theo m un nng lc thc hin...............................................................22 3.1.3 Yu cu i vi gio vin trong o to ngh theo nng lc thc hin .........................23 3.2. Bin son ti liu dy hc m un PLC trn m hnh thit k...............................................24 3.2.1. Gii thiu m un o to PLC c bn ....................................................................24 3.2.2. Bin son ti liu h tr gio vin trong o to PLC c bn .......................................24 KT LUN.........................................................................................................................................25 TI LIU THAM KHO..................................................................................................................26 Ph lc ...............................................................................................................................................27

1


MS: SPKT.10

T VN 1.Tn ti: Thit k, ch to m hnh nh xe gia nh t ng hai tng phc v dy hc modul Lp trnh PLC c bn. 2.L do chn ti: 2.1. Yu cu nng cao hiu qu hc tp cc mn hc thuc lnh vc t ng ha trong nh trng T ng ha ngy cng c ng dng rng ri trong cc qu trnh sn xut cng nh trong i sng ca con ngi, gp phn to ln trong gii phng sc lao ng ca con ngi, tng nng sut trong lao ng, l mt trong nhng nhn t quan trng gip cho th gii loi ngi ngy cng pht trin. M phn ln cc h thng dy chuyn sn xut t ng ha hin nay c iu khin bng b iu khin logic lp trnh (PLC). Chnh v vy, hu ht cc trng k thut v trng ngh ngi hc u c trang b cc kin thc v PLC. Tuy nhin vic hc trong nh trng cn nng tnh l thuyt, sinh vin t c thc hnh, cc phng thc hnh cn thiu thn v trang thit b nn hiu qu vic dy v hc ca cc mn thuc lnh vc ny cn rt hn ch. Mt phng php nng cao hiu qu vic dy v hc cc mn thuc lnh vc ny l b xung cc m hnh thc hnh gn vi cc bi ton thc t v tng thi lng thc hnh nng cao tay ngh ca sinh vin, ng thi gip sinh vin tip cn ngay vi cc ng dng thc t c th lm vic ngay khi tt nghip m khng phi o to li. 2.2. Tip tc hon thin cc m hnh phc v dy hc modun PLC ca Vin S phm k thut Trong mt vi nm gn y, phng thc o to trong h thng ngh nghip chuyn sang phng thc o to theo modul nng lc thc hin. Mt trong nhng iu kin quan trng c th tin hnh t chc dy hc theo modul nng lc thc hin l i ng gio vin. Theo thng k hin nay s gio vin trong cc c s dy ngh p ng iu kin dy hc theo modul nng lc thc hin ch chim 40%. L mt n v o to gio vin cho h thng dy ngh, lm th no sinh vin tt nghip ra trng c th tip cn ngay vi phng thc o to theo modul nng lc thc hin l mt nhim v2


MS: SPKT.10

cp thit t ra i vi Vin S phm k thut, trng HKH H Ni. Mt trong nhng gii php t ra l cho sinh vin tip cn vi phng thc o to ny thng qua vic hc tp ti Vin. Modun Lp trnh PLC c bn c la chn gip sinh vin lm quen vi dy v hc theo modun. Cc m hnh thc hnh gn vi cc bi ton thc t v ang c sinh vin nm cui ca mt vi kha gn y thit k v ch to khi lm n tt nghip. Xut pht t nhu cu thc t v nh xe gia nh t ng hai tng, vi nhng kin thc c hc trong nh trng v thit b iu khin logic lp trnh PLC, chng em quyt nh chn ti: Thit k, ch to m hnh nh xe gia nh t ng hai tng phc v day hc modun lp trnh PLC c bn 3.Mc tiu v nhim v nghin cu: 3.1. Mc tiu ca ti - Thit k, ch to m hnh nh xe gia nh t ng hai tng - Xy dng ti liu dy hc modun PLC c bn cho gio vin v sinh vin trn m hnh nh xe gia nh t ng hai tng 3.2. Nhim v nghin cu - Tm hiu thc t v cc bi xe t ng v la chn gii php cho bi ton thit k nh xe gia nh t ng hai tng s dng b iu khin PLC - Tm hiu v PLC S7-200 ca Siemens - Thit k, ch to m hnh nh xe gia nh t ng hai tng s dng b iu khin PLC - Tm hiu v modun v dy hc theo modun - Bin son ti liu dy hc modun PLC trn m hnh nh xe gia nh t ng hai tng 4. Ni dung ca ti c chia thnh 3 chng: Chng 1: Nhng vn chung v bi xe t ng Chng 2. Thit k m hnh nh xe gia nh t ng hai tng. Chng 3. Bin son ti liu dy hc modun Lp trnh PLC c bn

3


MS: SPKT.10

CHNG 1. NHNG VN CHUNG V BI XE T NG 1.1. Khi nim v h thng xe t t ng nhiu tng H thng xe t t ng nhiu tng c hnh thnh gii quyt nhng hn

ch ca cc bi xe truyn thng hin nay nh: d b mt cp ph tng xe nu v tr xe khng lp camera an ninh, ngi li xe khng c kinh nghim phi mt nhiu thi gian a xe vo v tr xe cht hp (i khi gy ra n tc cc b), kh kim sot kh thi v ting n khi xe di chuyn trong khu vc xe, ngi li xe mt rt nhiu thi gian tm ch v tm ra xe ca mnh khi ly xe, tn din tch H thng xe t t ng nhiu tng l loi kt cu c trang b h thng nng di chuyn xe t t mt t ln im xe trn cao (i vi loi h thng ni) hoc chuyn xe xung im t di lng t (i vi loi h thng ngm) mt cch hon ton t ng, khng cn ngi li. Sau khi a xe vo phng xe, b phn iu khin s t ng a xe vo v tr , ngi li xe khng cn thao tc bt k ng tc no ngoi vic bm nt s xe (hoc nhn th t h thng). Khi cn ly xe ra, h thng iu khin nhn thng tin t ngi gi ra cc quyt nh thch hp a xe n im tr xe c nh, li xe ch cn ly xe ra t im c nh ny. 1.2. ` Mt s loi bi xe t ng 1.2.1 Bi xe t ng dng thang my

Hnh 1.1. Bi xe t ng dng thang myVi h thng xe t ng dng thang my, li xe s a xe vo bung thang my, thang nng xe n tng xe, li xe a xe ra khi thang my v li xe vo v tr xe

c im bi xe t ng dng thang my:4


MS: SPKT.10

- Tit kim din tch ng di chuyn ni b ca xe khi ln xung gia cc tng bn trong bi xe, tuy nhin vn tn din tch di chuyn cho xe trong tng tng. - Tc nng h chm do c xe v ngi. Vi h thng mt thang my th thi gian ly xe ra vo rt lu 1.2.2. Bi xe t ng dng xp hnh

c im S lng xe nh (10 30 xe), rt c ng v ly xe nhanh chng, d dng. Lp thng dng cho cc cng trnh qui m nh (1 tng hm xe) tng s lng xe tr xe. Thi gian ly xe lu (bnh qun 2.5 pht) cho h thng trn 30 xe Lun lun phi thit k cha 1 ct trng xp hnh (tc 1 v tr trng cho mi tng).

Hnh 1.2. Bi xe t ng kiu xp hnh

1.2.3. Bi xe t ng h thng xoay vng ng c im : Rt c ng, tit kim din tch (30 m2) H thng xe t ng h thng xoay vng ng c th xoay thun chiu hoc ngc chiu kim ng h (hoc 1 chiu) Hnh 1.3. Bi xe t ng kiu xoay vng ng D tho lp - Ch xe t ng h thng Cycle 1.2.4. Bi thch hp vi cc loi xe nhParking

5


MS: SPKT.10

H thng xe t ng lp ngm di mt t, ph hp cho mt bng nh hp, Tc thang nng 20-40m/p, tc di chuyn ngang 20-30m/p. S lng xe ti u ca h thng: 6-38 xe. iu khin n gin vi mn hnh cm ng (Touch screen) H thng xe t ng ny rt ph hp cho cc cng trnh ta nh c qui m xe nh. Hnh dng khu t thng l hnh ch nht vi 1 cnh ngn v 1 cnh di Hnh 1.4. H thng Cycle Parking 1.2.4. xe t ng h thng xoay vng ngang

H thng xe t ng xoay vng ngang rt ph hp cho cc cng trnh ta nh c qui m xe nh. Hnh dng khu t thng l hnh gn vung vi hai cnh gn bng nhau.

1.2.5. xe t ng h thng thp xe (Sky parking System) Hnh 1.5. H thng xoay vng ngang L h thng xe t ng dng thp nhiu tng. C th l thp c lp hoc nm bn trong ta nh, 70 xe c th trn din tch 7.3 m x 6.4 m = 46.7 m2, chiu cao thp tng ng 75m, 35 tng (hoc xp dc 3,6 m x 17 m = 61.2 m2). Tc tiu chun 90 m/ph, ti a c th t 140m/p, vn hnh m v an ton. iu khin n gin vi mn hnh cm ng (Touch screen)

6


MS: SPKT.10

H thng xe t ng sky parking truyn thng l c 2 ct xe i xng, nhng ty theo din tch t, tng s lng xe chng ta c th c 3- 5 5 6 ct xe. Nhng thi gian ly xe trung bnh s tng ln theo s lng xe. S lng xe ti u l 70 xe. c im: - Loi thp mi bn thang 1 xe l loi h thng c th ly xe cc nhanh k c s lng xe nhiu (thi gian ly xe ti a cho h thng 60 xe l 1.5 pht, bnh qun 1 pht / 1 xe) - H thng xe t ng sky parking tit kim din tch t hp, pha sau hoc bn hng nh cao tng - Gi thnh cao hn cc loi khc nhng vn hnh m, t gy ting n. - Lp t nhanh chng v c th tho d di chuyn khi cn Hnh 1.6. H thng thp xe 1.2.6. xe t ng h thng tng di chuyn c im: - S dng pallet hoc robot. - Bo dng d dng hn (do mi tng c 1 trolley hot ng ring bit) - Do mi tng c 1 b trolley nn gim thiu thi gian nhn v tr xe - Thi gian nhn v tr xe c th gim ty theo s lng thang nng c lp t. Hnh 1.7. H thng tng di chuyn

7


MS: SPKT.10

1.3.

La chn gii php cho bi ton thit k Vi quy m h gia nh s dng hai xe th h thng xe t ng dng thang my l mt gii php ph hp. H thng gm hai b phn chnh: 1.3.1. B phn truyn ng Dng nng/h bung thang. C hai cch nng/h bung thang: Dng kch thy lc hoc ng c ko. phc v dy hc modun Lp trnh PLC c bn nn trong m hnh s dng ng c ko. 1.3.2. B phn iu khin iu khin h thng hot ng theo yu cu cho trc. C 2 phng php iu khin: - iu khin ni cng: S hot ng ca thit b c xc nh bng mch ni gia cc phn t khc nhau. Thay i hot ng dn ti thay i mch ni. - iu khin mm: S hot ng ca thit b c xc nh bng chng trnh do b x l hot ng theo chu k. Thay i hot ng dn n thay i chng trnh. iu khin mn c th c thc hin bng PLC, vi iu khin (C-Micro Controller) hay my tnh (PC-Personal Computer). Trong vi C v PC ngi lp trnh c th a vo tt c thit k ca mnh v nh vy cng ngh p ng yu cu ca ngi thit k, khng sn sng p ng trong mi trng cng nghip cn PLC c ch to chuyn bit cho cc tc v iu khin v mi trng cng nghip. Trong m hnh s dng b iu khin PLC S7-200 ca Siemens.

8


MS: SPKT.10

CHNG 2. THIT K M HNH NH XE GIA NH T NG HAI TNG 2.1. Bi ton thit k 2.1.1. Yu cu thit k Thit k m hnh nh xe gia nh t ng hai tng hot ng theo nguyn l sau: - Thit b s bt u nng nu tha mn 1 trong 2 iu kin: + khay di khng c xe v cm bin pht hin c xe ca trc ca thit b.

+Khay di ang di mt t v ngi dng n nt nng. - Khi thit b nng chiu cao cho php (bnh xe motor quay qung ng xc nh l x vng) th ng c s dng nng.

Trng thi treo(Dng nng) - Thit b s bt u h nu tha mn 1 trong 2 iu kin: + Sau 5s k t khi cc cm bin xc nhn ngi dng ly xe ra khi khay di.

+ Khay di ang trn mt t v ngi dng n nt h. Khi n nt h nu khay di c xe th thit b s ghi nh trng thi ny. - Khi thit b h chiu cao cho php (bnh xe motor quay qung ng xc nh l x vng) th ng c s dng h.

Trng thi ngh (Dng h)9


MS: SPKT.10

2.1.2. Thng k thit b s dng trong m hnh Bng 2.1. Bng thng k thit b s dng trong m hnh STT 1 2 3 4 5 6 7 Loi thit b Cm bin quang Nt nhn thng m ng c ko 24V, 3A Encoder PLC S7-200, CPU 224 Rle 24V L cm S lng 3 2 1 1 1 2 10 Mc ch s dng Pht hin c xe Chn ch nng/h bung thang Nng/h bung thang m s vng quay ca ng c iu khin hot ng ca m hnh Rle trung gian cp ngun cho ng c quay thun/nghch Kt ni vi m hnh khc

2.1.3. Gii thiu v b iu khin PLC S7-200 ca Siemens PLC S7-200 l thit b iu khin kh trnh ca hng Simens, n c ra i t nhng nm 70 ca th k trc thay th cho cc b iu khin kiu Rle. Ngay t khi ra i n nhanh chng th hin c nhng u th vt tri v c ng dng rt rng ri trong cc h thng t ng ho sn xut. c nhp vo th trng Vit Nam t nm 1996, cc th h u tin c sn xut ti USA. Thnh phn c bn ca S7 200 l khi vi x l. V hnh thc bn ngoi s khc bit ca cc loi CPU ny c nhn bit nh s u vo/ra. PLC S7-200 c cu trc kiu modul bao gm: Module ngun (PS): c nhim v to ra in p mt chiu 24V n nh cung cp cho CPU v cc Module m rng hot ng. in p cung cp cho b ngun l in p li xoay chiu 220V, 50Hz. Module CPU: vi b vi x l, Module CPU c chc nng thc hin cc thut ton iu khin, lin kt hot ng ca cc module v thc hin truyn thng n gin. Module m rng gm c: cc Module vo ra s (DI/DO), cc Module vo ra tng t (AI/AO) cc Module giao din truyn thng (IM) v cc Module chc nng (FM) khc: Module vo ra s (DI/DO): c nhim v thu nhn v a ra tn hiu s vi in p 24 VDC giao tip vi cc thit b ngoi vi.10


MS: SPKT.10

-

Module vo ra tng t (AI/AO): thc hin chc nng giao tip vi thit b ngoi vi c tn hiu tng t dng: 0 - 20 mA, 4 - 20 mA, 0 - 5 V, 0 -10 V

-

Module chc nng (FM): c vai tr thc hin mt nhim v c th no nh: iu khin v tr, iu khin ng c bc, ng c servo, my bin tn

Cc module ny c s dng vi cc mc ch khc nhau v c ghp ni vi CPU thng qua h thng Bus ni b:

Hnh 2.1 Hnh nh v PLC v cc module ca S7 - 200. CPU S7-200 c hai loi : CPU 21x v CPU 22x. Hin nay loi CPU 21x khng cn sn xut na. CPU 22x: y l cc loi CPU c ci tin v tch hp nhiu tnh nng quan trng ph hp hn vi cc ng dng khc nhau. Cc CPU ny c tc x l cao, b nh c m rng, s u vo ra ln, c kh nng ghp ni c nhiu modul m rng khc. H ny bao gm cc CPU: CPU 221, CPU 222, CPU 224, CPU 224XP, CPU 226, CPU 226XM Thng s Tc x l (ms/php tnh) B nh chng trnh (kB) B nh d liu (kB) Vng bin nh S u vo ra s(DI/DO) S modul m rng ti a S u vo ra m rng ti a CPU 221 0.22 2 4 32byte (M0.0=>M31.7) 10 (6DI/4DO) + 1AI 0 0 CPU 222 0.22 4 4 32byte (M0.0=>M31.7) 14 (8DI/6DO) + 1 AI 7 (256 u vo/ra) AI/AO:( 8AI v 02AO ) DI/DO:( 40DI v 38DO)11


MS: SPKT.10

S Timer/Counter Cng truyn thng Ngun in Pin nh B m tc cao Cp ngun ra

256 Counter(16 bit),

256 Counter(16 bit),

256 timer 256 timer 1 RS485 (MPI, PPI,COM) 1 RS485 (MPI, PPI,COM) 24VDC hoc 220 VAC, 50 24VDC hoc 220 VAC, 50 Hz 54 h n 200 ngy; Hz 54 h n 180 ngy 4 b 32 bit (fmax =30kHz) 24 VDC c bo v ngn mch CPU 224XP 0.22 8 12 32byte (M0.0=>M31.7) 24 (14DI/10DO) +

24 VDCc bo v ngn mch

Thng s CPU 224 Tc x l (ms/php 0.22 tnh) B nh chng trnh (kB) B nh d liu (kB) Vng bin nh S u vo ra s (DI/DO) 8 12 32byte (M0.0=>M31.7) 24 (14DI/10DO) + 1 AI

2 AI+1AO S u vo ra m rng AI/AO: ( 28AI v 7AO ) hoc AI/AO: ( 28AI v 10AO ) ti a S Timer/Counter Cng truyn thng Ngun in Pin nh B m tc cao 14AO DI/DO: (94DI v 74DO) 256 Counter(16 bit), 256 timer 1 RS485 (MPI, PPI, COM) 24VDC hoc 220 VAC, 50 Hz 100 h n 200 ngy 6 b 32bit(fmax=30kHz) hoc 16AO DI/DO: ( 94DI v 74DO) 256 Counter(16 bit), 256 timer 2 RS485 (MPI, PPI, COM) 24VDC hoc 220 VAC, 50 Hz 54 h n 180 ngy 4 b 32 bit(fmax=30kHz) +2 b 32 bit (fmax = 200kHz) Cp ngun ra 24 VDC c bo v ngn mch 24 VDCc bo v ngn mch Thng s CPU 226 CPU 226XP Tc x l (ms/php 0.22 0.22 tnh) B nh chng trnh (kB) 10 2012


MS: SPKT.10

B nh d liu (kB) Vng bin nh

24

48 32byte (M0.0=>M31.7)

32byte (M0.0=>M31.7) S u vo ra s (DI/DO) 40 (24DI/16DO) + 2 AI 40(24DI/16DO) + 1AI S u vo ra m rng AI/AO: ( 28AI v 7AO ) hoc AI/AO: ( 28AI v 7AO ) ti a S Timer/Counter Cng truyn thng Ngun in Pin nh B m tc cao 14AO hoc 14AO DI/DO:(128DIv120DO) DI/DO:(128DIv120DO) 256 Counter(16 bit), 256 256 Counter(16 bit), 256 timer 2 RS485 (MPI, PPI, COM) 24VDC hoc 220 VAC, 50 Hz 100 h n 200 ngy 4 b 32 bit(fmax=30kHz) +2 b 32 bit (fmax = 200kHz Cp ngun ra 2.2. Thit k m hnh 2.2.1. Phn c kh - Kt cu 2 tngKhung: thp B ,np,v: tn

timer 2 RS485 (MPI, PPI, COM) 24VDC hoc 220 VAC, 50 Hz 100 h n 200 ngy 4 b 32 bit(fmax=30kHz) +2 b 32 bit (fmax =

200kHz) 24 VDC c bo v ngn mch 24 VDCc bo v ngn mch

2.2.2. Phn in 2.2.2.1. S u ni u vo

13


MS: SPKT.10

2.2.2.2. Mch lc v S u ni u vo

14


MS: SPKT.10

2.2.3. Lp trnh phn mmPhn mm lp trnh iu khin nh xe, c lp trnh bng ngn ng LAD Gin thang. Cho PLC S7-200 Chng trnh:

15


MS: SPKT.10

16


MS: SPKT.10

17


MS: SPKT.10

CHNG 3. BIN SON TI LIU DY HC MODUN LP TRNH PLC C BN TRN M HNH NH XE GIA NH T NG HAI TNG

3.1. Nhng vn chung v o to ngh theo modun nng lc thc hin 3.1.1. Khi nim chung v modun 3.1.1.1 Khi nim v modun M un c ngun gc t thut ng Latinh modulus vi ngha u tin l mc thc, thc o. Trong kin trc xy dng La m n c s dng nh mt n v o. n gia th k 20, thut ng modulus mi c truyn ti sang lnh vc k thut. N c dng ch cc b phn cu thnh ca cc thit b k thut c cc chc nng ring bit c s h tr v b sung cho nhau, khng nht thit phi hot ng c lp. M un m ra kh nng cho vic pht trin, hon thin v sa cha sn phm. c im cn bn ca M un l: tnh c lp tng i- tnh tiu chun ho v tnh lp ln. M un o to c ngun gc t USA, ln u tin c s dng vo nm 1869 ti trng i hc Harward vi mc tiu: to iu kin cho sinh vin c kh nng la chn cc mn hc cc chuyn ngnh. Trong o to c nhiu khi nim v m un: - M un l mt n v hc tp lin kt tt c cc yu t ca cc mn hc l thuyt , k nng, cc kin thc lin quan to ra mt trnh . - M un l mt n v hc tp trn vn v c th c thc hin theo c nhn ho v theo mt trnh t xc nh trc kt thc m un - M un l mt n v trn vn v mt chuyn mn. v vy, nh nhng iu kin c bn mi M un tng ng vi mt kh nng tm vic. iu c ngha khi kt thc thnh cng mi m un s to ra nhng kh nng cn thit cho tm vic lm. ng thi, mi m un c th hnh thnh mt b phn nh trong chuyn mn ca mt ngi th lnh ngh. - M un chia qu trnh o to ra lm cc thnh t n gin. Mi thnh t hoc M un c xc nh bi mc ch k nng tin quyt phi c, ni dung v di thi gian. Thng th m un nhn mnh vo pht trin nng lc hn l kin thc t c, to kh nng cho ngi th nhanh chng thch nghi vi mi trng ngh nghip v c th c cp chng ch.18


MS: SPKT.10

c im ca m un: - M un c kch c xc nh: kch c ca m un c tnh theo s gi ln lp theo tun, thi gian o to theo thng, hc k , nm hc. Kch c ca m un c th xc nh bi cc cp trnh o to. - Trt t ca m un: cc m un c th c thc hin ng thi hoc k tip nhau - Mi m un u c xc nhn trnh : M un l n v o to khp kn, c tnh c lp tng i. V vy ni dung ca n khng nhng c th c kim tra, nh gi v xc nhn trnh mt cch c lp m cn c truyn th mt cch c lp. - Kh nng tch hp: cc m un n l c th c tch lu dn thnh mt M un trnh . - Tnh lin thng: cc m un c th phi hp vi nhau theo chiu dc hoc chiu ngang. Mt m un n l c th ghp ni vo cu trc ca cc m un trnh khc hoc cc hnh thc o to khc. 3.1.1.2. M un k nng hnh ngh (MKH) M un k nng hnh ngh theo ting Anh l Module of Employsble Skills (MES) c xc nh l mt phn ni dung o to ca mt hoc mt s ngh hon chnh, c cu trc theo cc m un tch hp gia l thuyt vi thc hnh, sau khi hc xong, hc sinh c th ng dng hnh ngh trong x hi. y l mt khi nim linh hot, bi l phm vi hnh ngh ca mi ngh l ht sc a dng: din ngh c th l din rng, hp; trnh ngh c th cao thp khc nhau, tu theo yu cu ca ngi s dng lao ng. Ni cch khc m un k nng hnh ngh linh hot v n ph thuc vo t chc quy trnh cng ngh (lao ng) v s phn cng lao ng ca tng gim c x nghip cho mi ngi lao ng. thun li cho qu trnh cho qu trnh ging dy v hc tp cng nh dng chung mt s cc kin thc, k nng cho nhiu ngh khc nhau, MKH c chia thnh nhiu m un (Modular units-Mo). Mi m un tng ng vi mi cng vic hp thnh MKH. Cng c nhng MKH n gin th khng cn chia nh, ngha l bn thn n ch c mt m un. Nh vy c th nh ngha: M un l mt b phn ca MKH, c phn chia mt cch logc theo tng cng vic hp thnh ca mt ngh no , c m u v kt thc r rng, v v nguyn tc cng vic ny khng th chia nh hn c na. Kt qu ca cng vic ny l mt sn phm hay l mt dch v. Cu trc ca m un:19


MS: SPKT.10

Ni dung o to ca mi m un c chia thnh tng phn t gi l n nguyn hc tp. Mi n nguyn hc tp trnh by mt vn chuyn bit v kin thc v k nng ca mt cng vic no v c th dng cho ngi dy ln ngi hc. Mi n nguyn hc tp thng c cu trc bi cc phn sau y: - Mc tiu cho ngi hc - Danh mc cc phng tin, thit b, vt liu.cn cho vic hc tp - Danh mc cc n nguyn hc tp c lin quan - Ti liu hc tp ca n nguyn - Cc cu hi, cc bi kim tra nh gi kt qu hc tp n nguyn hc tp gm c cc loi chnh sau: - Loi hnh hot ng - Loi thng tin v k thut, thit b, cng c - Loi thng tin v vt liu, phng php - Loi thng tin v biu s - Loi l thuyt - Loi an ton lao ng 3.1.1.3. M un nng lc thc hin (NLTH) Mun nng lc thc hin l mt n v hc tp, ngi hc cn lnh hi, tng ng vi mt hot ng xc nh ca mt ngh. Trong bao gm cc kin thc l thuyt, k nng thc hnh, v cc phm cht o c trong cng vic cn phi c. M un NLTH c xy dng trn c s ca vic phn tch hot ng lao ng, xc nh yu cu ca ngh v nng lc thc hin. Trong phn tch yu cu v khi xy dng M un NLTH c i din ca pha s dng ngun lc. M un NLTH hng ti s pht trin v cng c kh nng thc hin cng vic. Qua nng cao c hi vic lm ca nhng ngi tt nghip. Cc thnh phn ca M un nng lc thc hin gm:

Tn M un: nhn mnh m un nhm hnh thnh pht trin hot ng ngh nghip no. M m un: Gip phn bit r rng gia cc M un Chc nng v ngha ca M un: L s m t ngn gn, tng qut vai tr m mi M un c th gip cho vic nng cao trnh ca ngi th.

20


MS: SPKT.10

Thi gian thc hin M un: cho bit thi gian dy v hc trong thi kho biu. Thi gian ca mt m un l kt qu ca cn nhc s phm. c s lu ti vic truyn t tt c cc nng lc ngh cn thit. Tng thi gian ca m un gm thi gian cho l thuyt v thc hnh nhm gip ngi hc c kh nng luyn tp y theo mc tiu ca M un nng lc thc hin, im trng tm l thc hnh. L thuyt c trnh by khi qut cn thit cho vic luyn tp cc hot ng ngh thch hp vi chun ngh. Mc tiu hc tp ca M un: m t kt qu hc tp d kin ca m un. Nu ngi hc mun thc hin c tt c mc tiu ca m un, h phi sn sng luyn tp hon thin cc hot ng ngh ca M un theo tiu chun ngh v chun nng lc. Vic m t mc tiu hc tp cn da vo cc im chun quan trng ca tiu chun ngh. Ni dung : l ni dung hc tp, vi ni dung ny truyn t cc nng lc ngh ph hp vi mc tiu hc tp. Ni dung khng ch a vo l thuyt s c truyn t m cn cc k nng thc hnh v cc phm cht o c trong cng vic. iu kin u vo: l cc nng lc, kinh nghim v cc yu cu tm sinh l bt buc i vi ngi tham gia hc tp m un. Vic xc nh cc iu kin u vo gii hn nhng iu kin bt buc i vi ngi hc, gip h tham gia vo hc tp m un thnh cng. Cn trnh vic m t iu kin u vo mt cch hnh thc khng lm hn ch c hi ca ngi hc hc cc m un nng lc. Ngi hc cn bit nhng k nng kinh nghim ngh nghip no l iu kin bt buc, khng ph thuc vo vic ngi hc u. Ngun lc cn thit thc hin M un: Vic m t ngun lc cho bit mt cch tng qut v Iu kin thc hin m un. Tiu ch y l to iu kin cho s pht trin nng lc ca ngi hc thc hin cc hot ng ngh nghip trong m un. Trng tm ca vic m t iu kin ngun lc l nhng iu kin gn lin vi s pht trin k nng thc hnh v kh nng luyn tp, hc tp gn lin vi qu trnh lao ng. Trong ch ti nhng vn dy nhm t chc qu trnh hc. Nh vy n khng thng nht hon ton vi cc ngun lc phc v cho vic luyn tp hon thin cc nng lc hot ng trong qu trnh lao ng. Kim tra v nh gi M un: cho bit cc thng tin v s pht trin trong hc tp cng nh trng thi ca ngi hc. Ngoi ra cn phc v cho vic nh gi thnh

21


MS: SPKT.10

tch hc tp ca ngi hc. N l mt b phn trong qu trnh hc cc m un nng lc thc hin, c tin hnh trong v khi kt thc m un.

Hng dn thc hin M un: gm cc ch dn v khuyn ngh v cc phng php nh hng nng lc thc hin, ly ngi hc lm trung tm pht trin nng lc hot ng ngh, ph hp vi i hi ca qu trnh lao ng.

3.1.2. o to ngh theo m un nng lc thc hin Khong na th k trc y, thut ng o to theo nng lc thc hin (ting Anh l Competency Based Training) c s dng m t mt phng thc o to da ch yu vo nhng tiu chun quy nh cho mt ngh v o to theo cc tiu chun ch khng da vo thi gian nh trong o to truyn thng. Khi nim trung tm trong phng thc o to mi ny l nng lc thc hin (NLTH), n c s dng lm c s lp k hoch, thc hin v nh gi qu trnh cng nh kt qu hc tp. o to ngh theo NLTH th hin ch n gn rt cht ch vi yu cu ca ch lm vic, ca ngi s dng lao ng, ca cc ngnh kinh t (gi chung l cng nghip). S 1 di y cho thy iu thng qua mi quan h gia cc thnh phn ca h thng GDKT&DN theo NLTH m nhiu nc trong khu vc v trn th gii v ang t chc thc hin. CNG NGHIP XD TIU CHUN KN NGH O TO Pht trin chng trnh o to Kim nh chng trnh o to Thc hin chng trnh o to NH GI NGI HC, NGI D THI nh gi NLTH ca ngi tt nghip theo TCKNNo to

CP VB CHNG CH CHO NGI T

S 3.1: Quy trnh o to ngh theo nng lc thc hin22


MS: SPKT.10

o to ngh theo NLTH t trng tm vo vic gii quyt vn , vo vic hnh thnh NLTH cho ngi hc hn l tp trung vo gii quyt ni dung chng trnh.Vic nh gi kt qu hc tp ca ngi hc da vo cc tiu ch thc hin (Performance Criteria). Cc tiu ch thc hin c xc nh ch yu t cc tiu chun ngh trong cng nghip; ch khi no ngi hc t tt c cc tiu ch t ra th mi c cng nhn hc xong chng trnh o to. u im ni bt ca h thng o to theo NLTH, bn cnh nhng u im khc th hin nhng c trng ca n, l h thng o to theo NLTH p ng c nhu cu ca c ngi hc ln ngi s dng lao ng qua o to: Ngi tt nghip chng trnh o to theo NLTH l ngi mt mt t c s thnh tho cng vic theo cc tiu chun quy nh, tc l p ng yu cu s dng, ng thi, mt khc li c th d dng tham gia cc kho o to nng cao hoc cp nht cc NLTH mi di chuyn v tr lm vic. Mt hn ch c bn ca h thng o to theo NLTH do ni dung chng trnh c cu trc thnh cc m un tch hp dn ti, l ngi hc khng c trang b mt cch c bn, ton din v c h thng cc kin thc theo l gc khoa hc, khng c c hi hiu su sc bn cht l thuyt ca cc s vt, hin tng nh truyn thng lu nay khi hc theo cc mn hc l thuyt, v vy s c th hn ch phn no nng lc sng to trong hnh ngh thc t ngi hc. 3.1.3 Yu cu i vi gio vin trong o to ngh theo nng lc thc hin o to ngh theo nng lc thc hin vi phng thc dy hc tch hp i hi gio vin day ngh c trnh chuyn mn su rng, c k nng thc hnh, nng lc s phm: mt mt l s nm vng phng php khoa hc ca mn hc, mt khc l kh nng s dng phng php dy hc thch ng vi mc tiu v ni dung c s gn kt gia l thuyt vi thc hnh, cnh cn i hi gio vin c kh nng t chc t chc qu trnh dy hc, t chc cc hot ng hc tp theo logic ca nhn thc kin thc, k nng v theo cu trc ca hot ng. Khng nhng th gio vin dy ngh cn c cc tri thc v k nng t chc qu trnh o to v qu trnh dy hc theo phng thc ny; Bi dy hc nh hng hnh ng trong o to ngh theo m un nng lc thc hin i hi gio vin c kh nng m t ngh, phn tch chng trnh, nm bt c cc m un, cc bi, xy dng cc iu kin thc hin m un cng nh nhng vn kim tra v nh gi cc nng lc thc hin. Trang b cho gio vin dy ngh nhng tri thc, nhng cch thc mi ca hot ng phng php v t chc dy hc trong o to ngh theo nng lc thc hin gip gio vin c th t chc thnh cng dy v hc cc m un nng lc thc hin.23


MS: SPKT.10

3.2. Bin son ti liu dy hc m un PLC trn m hnh thit k 3.2.1. Gii thiu m un o to PLC c bn M un o to PLC c bn l m un nn hc cui cng trong chng trnh o to cao ng ngh in cng nghip. Thi gian dnh cho vic hc tp m un l 155h, trong 45h l thuyt v 110h thc hnh. Sau khi kt thc m un, ngi hc c nng lc: - Trnh by c nguyn l h iu khin lp trnh PLC; So snh cc u nhc im vi b iu khin c tip im v cc b lp trnh c nh khc. - Phn tch c cu to phn cng v nguyn tc hot ng ca phn mm trong h iu khin lp trnh PLC. - Phng php kt ni dy gia PC - CPU v thit b ngoi vi. - Thc hin c mt s bi ton ng dng n gin trong cng nghip. - Phn tch lun l mt s chng trnh n gin. - Kt ni thnh tho phn cng ca PLC - PC vi thit b ngoi vi. - Vit chng trnh, np trnh thc hin c mt s bi ton ng dng n gin trong cng nghip. - Phn tch lun l mt s chng trnh n gin, pht hin sai li v sa cha khc phc. Chi tit v m un o to PLC c bn c trnh by trong ph lc 1. 3.2.2. Bin son ti liu h tr gio vin trong o to PLC c bn Sau khi phn tch k ni dung m un o to PLC c bn v xc nh r cc nng lc m ngi hc cn phi t c. Chng em tin hnh bin son ti liu h tr gio vin trong ging dy m un ny trn m hnh nh xe gia nh t ng hai tng c thit k. H thng bi ging c thit k bao gm: - Gii thiu v PLC,cu trc v lp trnh - Cc lnh lp trnh c bn - Cc lnh c bn K thi gian - Cc lnh c bn K m - Cc lnh c bn K ghi dch - Lnh CHOT,vi phn,mov, so snh

24


MS: SPKT.10

KT LUN

25


MS: SPKT.10

Sau mt thi gian nghin cu v lm vic thc t, cng trnh nghin cu khoa hc ca chng em hon thnh vi nhng kt qu thu c nh sau: - Tm hiu v cc gii php bi xe t ng v la chn c gii php thch hp cho m hnh thit k. - Tm hiu tng quan v iu khin logic lp trnh PLC nh vai tr, truyn thng, cu trc chung ca PLC v tm hiu v cc ngn ng lp trnh. - Nghin cu, tm hiu v cc h CPU v cc module cng nh cc tp lnh ca thit b iu khin logic kh trnh PLC S7-200 ca Siemens. - Thit k, ch to c m hnh nh xe gia nh t ng hai tng - Tm hiu v o to ngh theo m un nng lc thc hin - Bin son ti liu h tr gio vin trong ging dy m un trn m hnh thit k. Mc d c gng rt nhiu, cng trnh nghin cu khoa hc ca chng em vn cn nhiu hn ch nh mi p ng c lp trnh vi cc u vo/ra s m cha lm vic c vi cc u vo/ra tng t, v vy hng nghin cu tip theo, chng em s m rng tnh nng ca m hnh, hon thin ti liu h tr gio vin v bin son ti liu hc tp cho hc vin p ng nhiu hn cc ni dung hc tp ca m un. Chng em rt mong c cc thy c v cc bn gp cng trnh nghin cu khoa hc ca chng em c th hon thin hn v ng dng vo thc t c hiu qu tt nht. Em xin chn thnh cm n!

TI LIU THAM KHO

26


MS: SPKT.10

[1] [2]. [3]. [4]. [5] [6]

Nguyn Don Phc, Phan Xun Minh. T ng ha vi SIMATIC S7-200. Nh xut bn nng nghip. 1997. SIEMENS. Ti liu PLC S7-200. SIEMENS . Phn mm Microwin Ver.3.2. SIEMENS. Phn mm m phng Simulator S7-200. inh Cng Thuyn, H Ngoc Vinh, Phm Vn Nin. Ti liu hng dn chun b v ging dy theo m un. Hng Yn. 2008 Nguyn Vn Tun, V Th Xun. Pht trin chng trnh o to ngh. i hc SPKT Thnh ph H Ch Minh. 2008

Ph lc CHNG TRNH M UN O TO PLC C BN27


MS: SPKT.10

M s m un: M22 Thi gian m un: 155h;

(L thuyt: 45h;

Thc hnh: 110h)

I. V TR, TNH CHT CA M UN: Trc khi hc m un ny cn hon thnh cc mn hc c s v cc m-un chuyn mn, m un ny nn hc cui cng trong kha hc. II. MC TIU M UN: Sau khi hon tt m un ny, hc vin c nng lc: - Trnh by c nguyn l h iu khin lp trnh PLC; So snh cc u nhc im vi b iu khin c tip im v cc b lp trnh c nh khc. - Phn tch c cu to phn cng v nguyn tc hot ng ca phn mm trong h iu khin lp trnh PLC. - Phng php kt ni dy gia PC - CPU v thit b ngoi vi. - Thc hin c mt s bi ton ng dng n gin trong cng nghip. - Phn tch lun l mt s chng trnh n gin. - Kt ni thnh tho phn cng ca PLC - PC vi thit b ngoi vi. - Vit chng trnh, np trnh thc hin c mt s bi ton ng dng n gin trong cng nghip. - Phn tch lun l mt s chng trnh n gin, pht hin sai li v sa cha khc phc. III. NI DUNG M UN: 1. Ni dung tng qut v phn b thi gian: Thi gian S Tn cc bi trong m un Tng L Thc Kim TT s thuyt hnh tra* 1 i cng v iu khin lp trnh. 17 8 8 1 2 Cc php ton nh phn ca PLC. 28 8 18 2 3 Cc php ton s ca PLC. 28 8 18 2 4 X l tn hiu Analog. 15 6 8 1 5 PLC ca cc hng khc. 10 5 4 1 6 Lp t m hnh iu khin bng 57 10 44 3 PLC. Cng: 155 45 100 10 * Ghi ch: Thi gian kim tra c tch hp gia l thuyt vi thc hnh v c tnh vo gi thc hnh. 2. Ni dung chi tit: Bi 1: i cng v iu khin lp trnh Mc tiu ca bi: - Trnh by c cc u im ca iu khin lp trnh so vi cc loi iu khin khc v cc ng dng ca chng trong thc t. - Trnh by c cu trc v nhim v cc khi chc nng ca PLC. - Thc hin c s kt ni gia PLC v cc thit b ngoi vi.28


MS: SPKT.10

- Lp t cc thit b bo v cho PLC theo yu cu k thut. Ni dung ca bi: Thi gian: 17h (LT: 8h; TH: 9h) 1. Tng qut v iu khin lp trnh. Thi gian: 1h - iu khin ni cng v iu khin lp trnh. - So snh PLC vi cc thit b iu khin thng thng khc. 2. Cu trc ca mt PLC. Thi gian:3h 3. Thit b iu khin lp trnh S7-200. Thi gian: 1h - a ch cc ng vo/ ra. - Phn ch ch v tr v kch thc ca nh. - Phn s ch a ch ca byte hoc bit trong min nh xc nh. - Cu trc b nh ca S7-200. 4. X l chng trnh. - Vng qut chng trnh. - Cu trc chng trnh ca S7-200. - Phng php lp trnh. 5. Kt ni dy gia PLC v cc thit b ngoi vi. Thi gian: 5h - Gii thiu CPU 214 v cch kt ni vi thit b ngoi vi. - V d kt ni ng vo/ra ca PLC t mt s iu khin c tip im. 6. Kim tra vic kt ni dy bng phn mm. Thi gian: 1h - Status Chart. - c v thay i bin vi Status Chart. 7. Ci t v s dng phn mm STEP 7 - Micro/win 32. Thi gian: 5h - Nhng yu cu i vi my tnh PC. - Ci t phn mm lp trnh STEP 7-Micro/Win 32. Bi 2: Cc php ton nh phn ca PLC Mc tiu ca bi: - Trnh by c cc chc nng ca RS, Timer, counter (b nh thi, b m). - ng dng linh hot cc chc nng ca RS, Timer, counter trong cc bi ton thc t: Lp trnh, kt ni, chy th... Ni dung ca bi: Thi gian: 28h (LT: 8h; TH: 20h) 1. Cc lin kt logic Thi gian: 3.5h - Cc lnh vo/ra v cc lnh tip im c bit. - Cc lnh lin kt logic c bn. - Lin kt cc cng logic c bn. - Bi tp ng dng. 2. Cc lnh ghi/xa gi tr cho tip im. Thi gian: 3h - Mch nh R - S. - Lnh SET (S) v RESET (R) trong S7-200. - Cc v d ng dng dng b nh.29


MS: SPKT.10

3. 4. 5. 6.

Timer. On - Delay Timer (TON). Retentive On - Delay Timer (TONR). Bi tp ng dng Timer. Couter (B m). B m ln (Counter up). B m ln/ xung (Counter up - down). Bi tp ng dng b m. Bi tp ng dng Lnh nhy v lnh gi chng trnh con.

Thi gian: 4.5h

Thi gian: 4.5h

Thi gian: 7.5h Thi gian: 3h

Bi 3: Cc php ton s ca PLC Mc tiu ca bi: - Trnh by c cc php ton so snh, cc php ton s. - ng dng chng trong cc bi ton thc t: Lp trnh, kt ni, chy th... Ni dung ca bi: Thi gian: 28h (LT: 8h; TH: 20h) 1. Chc nng truyn dn. Thi gian: 11h - Truyn Byte, Word, Doubleword. - Truyn mt vng nh d liu. 2. Chc nng so snh. Thi gian: 11h - Chc nng dch chuyn. - Chc nng chuyn i (Converter). - Chc nng ton hc. 3. ng h thi gian thc. Thi gian: 8h Bi 4: X l tn hiu analog Mc tiu ca bi: - Trnh by c cc b chuyn i o. - ng dng chng trong cc bi ton thc t: Lp trnh, kt ni, chy th... Ni dung ca bi: Thi gian: 15h (LT: 6h; TH: 9h) 1. Tn hiu Thi gian: 1h 2. Biu din cc gi tr Thi gian: 3h 3. Kt ni ng vo-ra Thi gian: 4h 4. Hiu chnh tn hiu Thi gian: 3h 5. Gii thiu v module analog PLC Thi gian: 3h

Analog. Analog. Analog. Analog. S7-200.

30


MS: SPKT.10

Bi 5: PLC ca cc hng khc Mc tiu ca bi: - Trnh by nguyn l, cu to ca cc h PLC Omron, Mitsubishi... - Thc hin lp trnh ca cc h PLC ni trn. Ni dung ca bi: Thi gian: 10h (LT: 5h; TH: 5h) 1. PLC ca hng Omron. Thi gian:2h 2. PLC ca hng Mitsubishi Thi gian: 2h 3. PLC ca hng Siemens (trung bnh v ln). Thi gian: 2h 4. PLC ca hng Allenbradley. Thi gian: 1.5h 5. PLC ca hng Telemecanique. Thi gian: 1.5h Bi 6: Lp t m hnh iu khin bng plc Mc tiu ca bi: - Phn tch qui trnh cng ngh ca mt s mch my sn xut. - Lp trnh c mt s mch ng dng thng gp trong thc t. - Np trnh, vn hnh v kim tra mch hot ng theo yu cu k thut. Ni dung ca bi: Thi gian: 57h (LT: 10h; TH: 47h) 1. Gii Thi gian:1h 2. Cch kt ni Thi gian: 6h 3. Cc m hnh v bi tp ng Thi gian: 47h - M hnh thang my xy dng. - M hnh iu khin ng c Y-. - M hnh xe chuyn nguyn liu. - o chiu di v sp xp vt liu. - Thit b nng hng. - Thit b v nc chai. - Thit b trn ha cht. IV.IU KIN THC HIN M UN: *Vt liu: - Bn, gi thc tp. - Dy ni. - Cc m hnh cn thit - Dy dn in n 12/10; 16/10; 20/10. - Cp iu khin nhiu li. - u ct cc loi, vng s th t.

thiu. dy dng.

31


MS: SPKT.10

- ng lun dy nh dng c (ng rut g), dy nha buc gt. *Dng c v trang thit b: - Ngun in AC 3 pha, 1 pha. - Ngun in DC iu chnh c. - PLC CPU214. - Compurter. - Cc thit b thc tp. *Ngun lc khc: - PC, phn mm chuyn dng. - Projector, overhead. - My chiu vt th ba chiu. V. PHNG PHP V NI DUNG NH GI: p dng hnh thc kim tra tch hp gia l thuyt vi thc hnh. Cc ni dung trng tm cn kim tra l: - Gii thut ph hp n gin, ngn gn. - Np trnh thnh tho, kim tra sa cha li khi np trnh. - S dng ng cc khi chc nng, cc lnh c bn (cc php ton nh phn cc php ton s ca PLC, x l tn hiu analog). - S dng, khai thc thnh tho phm mm m phng. Thc hin kt ni tt vi PC. - Lp rp thnh tho mch ng lc m bo k thut v an ton. VI. HNG DN THC HIN M UN: 1. Phm vi p dng chng trnh: Chng trnh mn hc ny c s dng ging dy cho trnh Trung cp ngh v Cao ng ngh. 2. Hng dn mt s im chnh v phng php ging dy m un: - Trc khi ging dy, gio vin cn cn c vo ni dung ca tng bi hc chun b y cc iu kin cn thit nhm m bo cht lng ging dy. - Nn p dng phng php m thoi Hc vin ghi nh k hn. - Khi gii bi tp, lm cc bi thc hnh... Gio vin hng dn, thao tc mu v sa sai ti ch cho Hc vin. - Nn s dng m hnh, hc c m phng minh ha cc bi tp ng dng. 3. Nhng trng tm cn ch : - Cu trc PLC, cu trc chng trnh... - Kt ni dy gia PLC v thit b ngoi vi. - Cc php ton nh phn cc php ton s ca PLC, x l tn hiu analog. - Thao tc kt ni dy, s dng phn mm vit chng trnh, np trnh vo PLC. 4. Ti liu cn tham kho: - Ti liu thc hnh PLC-S7 200 Trung tm Vit c Trng H S phm K thut TPHCM. - Hng dn thit k mch v lp trnh PLC Trn Th San (bin dch) NXB Nng 2005. - iu khin logic lp trnh PLC Tng Vn Mi (bin dch) NXB Thng k 2006. - Cc tp ch, ti liu k thut c lin quan.32


MS: SPKT.10

33

bao cao nckh sv - spkt.10

Documents