Tm hiu cu to phn cng PLC ca hng Rockwell Automation

Tm hiu cu to phn cng PLC ca hng Rockwell Automation

1) CompactLogix 1769L32E

PLC CompactLogix L32E cung cp phng thc iu khin, kt ni, cc cng vo ra tin li trong mt khi iu khin nh gn. PLC CompactLogix L32 l s la chn hon ho cho cc h thng nh,cc chng trnh iu khin mc, my mc .

1.1. CPU

CompactLogix 1769-L32E s dng CPU L32E

Cc thng s chnh :

- B nh trong 750 Kb

-Th nh :

1784-CF64 64 MB

1784-CF128 128 MB

-Phn mm lp trnh : RSLogix 5000 Enterprise Series

-Cc ngn ng lp trnh :Relay ladder ,Function block diagram, Structured text ,Sequential function block

-Cc cng truyn thng : 1 EtherNet/IP port v 1 RS-232 serial port (DF1 or ASCII)

- Cc la chn truyn thng : EtherNet/IP ,ControlNet ,DeviceNet. phng th nghim ta s dng Ethernet/IP.

- Kh nng m rng : max l 16 modules 1769

- C ch giao tip : hi p tun t

- Tc vng qut : i vi cc module s v tng t

( 1...4 modules : 1.0 ms

( 5...16 modules : 1.5 ms

- X l ng thi 6 tc v (task) trong c duy nht 1 tc v mc nh (continuous task)

1.2.I/O module- CompactLogix L32E c 2 module vo ra :

+ Vo ra s s dng tn hiu mt chiu

+Vo ra tng t

- u vo s (digital DC Input) s dng module 1769-IQ32 c 32 u vo, in p 24V,dng in trng thi On ti thiu 2mA, dng in trng thi off ti a 1,5mA.

- u ra s (digital DC Output) s dng module 1769-OB32 c 32 u ra, in p 24V

- u vo tng t (Analog Input) s dng module 1769-IF4 c 4 u vo, u ra tng t ( Analog Output) s dng module 1769-OF2 c 2 u ra.

1.3.Ngun nui- Ngun nui ca PLC CompactLogix 1769-L32E dng ngun 1769-PA2 cng sut 110VA in p 110V AC, v 130 2) ControlLogix 1756L61

B iu khin ControlLogix cung cp mt gii php iu khin c th o c c, cho php xc nh mt lng ln cc u vo ra.

B iu khin ControlLogix c th t vo bt k khe no ca khung ControlLogix I/O v nhiu b iu khin c th ci t trong cng mt khung. Nhiu b iu khin trong cng mt khung giao tip vi nhau thng qua mch nn (backplane), tuy nhin chng hot ng c lp vi nhau.

B iu khin ControlLogix c th gim st v iu khin cc u vo ra I/O thng qua backplane ControlLogix hoc thng qua lin kt I/O. B iu khin ControlLogix c th giao tip thng qua mng EtherNet/IP, ControlNet, DeviceNet, DH+, Remote I/O, and RS-232-C (DF1/DH-485 protocol) v nhiu thit b mng khc. cung cp kh nng giao tip cho b k ControlLogix cn ci t cc module giao din giao tip tng ng vo trong khung.2.1.CPUControlLogix 1756-L61

Cc thng s chnh :

- B nh trong 2MB, B nh I/O: 478KB

- Th nh :

1784-CF64 64 MB

1784-CF128 128 MB

- Phn mm lp trnh : RSLogix 5000 Enterprise Series

- Cc ngn ng lp trnh :Relay ladder, Function block diagram,Structured text, Sequential function block

- Cc cng truyn thng : 1 EtherNet/IP port v 1 RS-232 serial port (DF1 or ASCII)

- Cc la chn truyn thng : EtherNet/IP, ControlNet, DeviceNet, Data Highway Plus, Remote I/O, SynchLink

- Giao tip ni tip: ASCII, DF1 full/half-duplex,DF1 radio modem, DH-485, Modbus via logic

- Kh nng m rng : 16 modules 1769

- C ch giao tip : hi p tun t

- Tc vng qut : i vi cc module s v tng t

- X l ng thi 32 tc v

- S lng kt ni ti a: 250

2.2.Cc module truyn thngControlLogix 1756-L61 c cc Module truyn thng :Ethernet/IP, ControlNet, DeviceNet,Data highway Plus,Remote I/O,Foundation Fieldbus,Serial,DH-485,Synchlink.Ti phng th nghim ta dng 3 module lEthernet/IP,ControlNet v DeviceNet

Giao thc Ethernet Cng nghip (EtherNet/IP) network protocol l mt chun m ca mng cng nghip, h tr c thng ip I/O thi gian thc v thay i thng ip.

ng dngModuleM t

-iu khin cc module IO v drive

-Cn 1 adapter cho cc IO 1756 phn tn trn cc lin kt EtherNet/IP

-Tryn thng vi cc thit b EtherNet/IP khc (thng ip v HMI)

-To cu lin kt EtherNet/IP truyn thng ip ti cc thit b trn mng khc1756-EN2F

1756-EN2T

1756-ENBT-iu khin cc module IO v drive thng qua mng EtherNet/IP

-Hot ng nh 1 adapter cho cc IO phn tn trn cc lin kt EtherNet/IP t xa.

-Dn thng ip ti cc thit b mng khc

-iu khin trong mi trng nhit t -20oC n 70oC1756-EN2TXT-iu khin cc module IO v drive thng qua mng EtherNet/IP

-Hot ng nh 1 adapter cho cc IO phn tn trn cc lin kt EtherNet/IP t xa.

-Dn thng ip ti cc thit b mng khc

-Cn truy cp t xa thng qua Internet ti cc b iu khin ControlLogix

-Truyn thng vi cc thit b EtherNet/IP v Ethernet ni chung (ch truyn thng ip, khng iu khin cc IO)

-To cu lin kt EtherNet/IP truyn thng ip ti cc thit b trn mng khc1756-EWEBModule ny cung cp mt trnh duyt Internet cho php gim st v thay i d liu t xa thng qua trang web XML.N h tr:

-c v vit d liu b iu khin

-To cu v truyn thng ip

-Trang web ring

-Email

-Dch v socket m

phng th nghim ta c module 1756-ENBT seri A vi tc truyn thng 10/1000 Mbps vi s cng logic 128 cng, 64 cng TCP/IP,cng sut 3,65W, 1 cng Ethernet JR45 Category 5.

Mng ControlNet l mt mng m, iu khin mng theo thi gian thc, cho nhng ng dng tc cao. Mng ControlNet s dng Common Industrial Protocol (CIP) tch hp chc nng ca 1 mng IO v 1 mng peer to peer cho php hot ng tc cao tt c cc chc nng.

Cch chn module ControlNet

ng dngModule

100 kt ni ControlNet trn mt module1756-CN2

1756-CN2R

iu khin nhit t -20oC n 70oC1756-CN2RXT

40-48 kt ni ControlNet trn mt module 1756-CNB

1756-CNBR

phng th nghim s dng Module ControlNet 1756-CNBR seri E vi cu hnh m rng, tc truyn thng 5Mbps vi 40-48 kt ni ,h tr kt ni max l 64, 1 Slot m rng, 2 cng ControlNet BNC,1 cng ControlNet JR45,ControlNet cp loi Quad shield RG6 coaxial, cp USB Samtec hoc PN RSP-119350 .

Mng DeviceNet l mng m, cp thp, to kt ni gia cc thit b cng nghip cp trng v cc thit b cp cao.

Hin ti ch c mt loi module DeviceNet l 1756-DNB

2.3.Cc cng vo ra.(I/O module )

- ControlLogix 1756-L61 c cc cng vo ra : vo ra s AC,DC, vo ra tong t , vo ra bng tip im,HART interface v vo ra c bit. Thit b trong phng th nghim ch lp t vo ra s AC v DC.

- Digital AC Input dng module 1756-IA16

1756-IA16 c 1 khe cm m rng ,16 u vo cp in p 120V, in p vn hnh 74-134V,47-63 Hz, in p off max l 20V, dng in off max 2,5mA, dng in On 5-13 mA.

- Digital AC Output dung module 1756-OA16

1756-OA16 c 1 khe cm m rng, 16 u ra,mc in p 120/240V, in p vn hnh 74-265 V,47-63 Hz, thi gian tr t on off hoc nguc li l 11ms 50Hz .

- Digital DC Input dng module 1756-IB16D

1756-IB16D c 1 slot m rng, 16 u vo ,cp in p 12/24 V, in p vn hnh 10-30V

- Digital DC Output dng module 1756- OB16D c 16 u ra, cp in p 24V,in p vn hnh 19,2-30V ,thi gian tr t off-on l 1ms,t on-off l 5ms

2.4.B ngun

Cc loi Ngun c bn: 1756-PA72, 1756-PB72, 1756-PA75, 1756-PB75, 1756-PC75, 1756-PH75

Cc loi ngun dnh cho b iu khin ControlLogix-XT: 1756-PBXT

Cc b ngun d phng: 1756-PA75R, 1756-PB75R

Ngun dnh cho b iu khin ControlLogix c s dng vi khung 1756 cung cp in p 1.2V, 3.3V, 5V, v 24V DC ti mch nn ca khung.

Loi ngun s dng Phng th nghim l loi ngun chun 1756-PA75/B, c lp ngoi cng bn tri ca khung , in p u vo 85-265V AC,in p ra 120/240V AC, di tn s 47-63 Hz, cng sut u vo max 100VA/100W, cng sut u ra max 75W .dng in khi ng max 20A.

2.5.Chassis- Khung

- H thng ControlLogix l mt h thng thit k theo dng module s dng khung 1756 I/O. Tt c cc khung u c thit k ghp ni theo chiu ngang vi mch nn. C th lp cc module bt c khe no. Mch nn cung cp kh nng giao tip tc cao gia cc module.

Cc loi khung: 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17

1756-A5XT, 1756-A7LXT

- Loi khung uc dng phng th nghim : 1756-A10 gm 10 slot