H thng iu khin v gim st

T bo dng thit bNhm iu khin inH thng iu khin v gim st* Nguyn Nh Ha *5/26/20121Cu trc c bn h iu khin gim st

5/26/20122Cu trc c bnH thng my tnh iu khin: Cc h thng my tnh iu khin chuyn dng hoc ph thng.Giao din qu trnh: Giao din gia cc MTK vi h thng k thut thng qua cc thit b o lng v truyn ng.H thng iu khin gim st: Cc thit b v phn mm giao din ngi my, cc trm k thut, cc trm vn hnh, gim st v iu khin cao cp.H thng truyn thng: Ghp ni im-im, bus cm bin/chp hnh, bus trng, bus h thng.H thng bo v: Cc thit b bo v v c ch thc hin chc nng an ton h thng.5/26/20123M hnh phn cp chc nng

5/26/20124Cu trc vo ra - Vo ra tp trung

5/26/20125u nhc im vo ra tp trungCng vic ni dy phc tp, chi ph cho cp dn cao: s lng ln cc cp ni, cu trc phc tp, cng thit k, lp t ln. Km tin cy: Phng php truyn dn tn hiu tng t gia cc thit b trng v thit b iu khin d chu nh hng ca nhiu, gy ra sai s m khng c kh nng pht hin. Km linh hot: Kh m rng bi phi i li cp dn, khng th la chn cc module vo/ra ca hng khc. Kh chn on li: Mt mt li do truyn tn hiu kh pht hin ra, mt khc li do thit b rt kh c th nh v v a ra kt lun chn on. Ph hp vi cc h thng qui m nh: Phm vi a l hp, mt my tnh iu khin, s lng vo/ra khng ln5/26/20126Vo ra phn tn

5/26/20127u nhc im ca vo ra phn tnTit kim chi ph dy dn v cng lp t: T b iu khin xung ti cc vo/ra phn tn ch cn mt ng truyn duy nht.Cu trc n gin: Thit k v bo tr h thng d dng hn.Tng tin cy ca h thng: Truyn k thut s => hn ch li c hn ch Nu c li truyn thng cng d dng pht hin nh cc bin php bo ton d liu ca h bus.Tng linh hot ca h thng: T do hn trong la chn cc thit b vo/ra T do hn trong thit k cu trc h thng. Kh nng m rng d dng hnVo/ra phn tn khng nht thit phi t gn ti hin trng5/26/20128Thit b trng v thit b BUS trng

5/26/20129Vo/ra trc tip vi thit b BUS trngCu trc n gin, d thit k v lp tGim chi ph cp truyn, cc khi vo/ra v cc ph kin khcGim kch thc t iu khina vo vn hnh v kh nng chn on cc thit b trng qua mng mt cch d dng.Kh nng tch hp cc chc nng iu khin t ng xung cc thit b trng => tr tu phn tn (distributed intelligence)

5/26/201210iu khin cc b/song song

5/26/201211iu khin cc b/song songThng c s dng cho cc h thng c qui m va v nh, c bit tiu biu trong cc ngnh cng nghip ch to, lp rp (cc dy chuyn song song c lp vi nhau) Cc thit b iu khin c t ti hin trng C th s dng kt hp cu trc vo/ra tp trung hoc vo/ra trc tip vi bus trng.Cc my tnh iu khin lm vic hon ton c lp vi nhau => tin cy cao Hon ton khng c s phi hp gia chng cng chia s gii quyt cng mt nhim v. Mt s mi trng cng nghip khng cho php lp t cc thit b iu khin ti hin trng.

5/26/201212iu khin tp trung

5/26/201213iu khin tp trung tin cy thp: Tp trung chc nng iu khin v x l thng tin ti mt my tnh duy nht linh hot thp: M rng cng nh thay i mt phn trong h thng i hi phi dng ton b h thng. Hiu nng km: Ton b thng tin u phi a v trung tm, chm tr do thi gian truyn dn v x l tp trung Ch ph hp vi cc ng dng qui m nh 5/26/201214iu khin phn tn

5/26/201215iu khin phn tnPhn chia chc nng iu khin xung cc my tnh iu khin ti cc trm cc b ( v tr khng xa vi qu trnh k thut). iu khin phi hp gia cc my tnh iu khin c th din ra trc tip hoc thng qua cc my tnh gim st trung tm (MTGS). linh hot cao hn hn so vi cu trc tp trung.Hiu nng cng nh tin cy tng th ca h thng c nng cao nh s phn tn chc nng xung cc cp di. M ra cc kh nng ng dng mi, tch hp trn vn trong h thng nh lp trnh cao cp, iu khin trnh t, iu khin theo cng thc v ghp ni vi cp iu hnh sn xut.

5/26/201216iu khin phn tn s dng BUS trng

5/26/201217Cc h thng iu khini vi iu khin h ri rc:PLC Programmable Logic Controller ( B iu khin logic kh trnh)PAC Programmable Automation Controllers (B iu khin t ng ha kh trnh)SCADA Supervisory Control And Data Acquisition (iu khin gim st v thu thp d liu)i vi t ng ha qu trnh:DCS Distributed Control System (H iu khin phn tn)PAS Process Automation System (H t ng ha qu trnh)PCS Process Control System (H iu khin qu trnh)PKS Process Knowledge System ECS Enterprise Control System

5/26/201218V cng ngh, h PLC v DCS kh ging nhauDCSPLCController

ControllerSupervisory ControlBusiness IntegrationSupervisory ControlBusiness IntegrationEngineering

Engineering

I/O

RTD, T/C, mA, etc.I/O24 Vdc, 120 Vac, etc.Failsafe I/O

HMI

HMI

NetworkNetworkField Device

Field Device

5/26/20121919Bob

Lets look at the technology that makes up both a DCS and PLC-based system. Field Device (transmitter vs. drive)I/O (analog vs. discrete)Controller (continuous high-availability vs. high-speed logic)HMI (supervisory system vs. machine operation)Engineering (function blocks vs. ladder logic)Network (high-availability, high-performance, standards-based)Supervisory control (process optimization vs. business intelligence)Business integration

From a technology viewpoint, the systems are not that different. But fundamentally, DCS can be thought of as a Complete Solution (a system tailored for an application), and PLC/SCADA an Integrated Architecture (component products that work together).

In the next few slides we will try to dive into what this meansSo snh h PLC v DCS kinh inc imPLCDCSXut hin1960s1975Thay thR le in tCc b iu khin vng n, c cu thy lcSn phm qu trnhCc sn phm ri rcSn xut theo khing dng ban uCng nghip xe hiLc du, ch binLoi iu khinRi rciu chnh qu trnhNgn ng lp trnh c trngLogic bc thang (Ladder Logic)Khi chc nng (Function Block)Chu k qut v x lNh hn 20 ms 100 ms 1 secQuy m hNhLn5/26/20122020Bob

Lets look at the technology that makes up both a DCS and PLC-based system. Field Device (transmitter vs. drive)I/O (analog vs. discrete)Controller (continuous high-availability vs. high-speed logic)HMI (supervisory system vs. machine operation)Engineering (function blocks vs. ladder logic)Network (high-availability, high-performance, standards-based)Supervisory control (process optimization vs. business intelligence)Business integration

From a technology viewpoint, the systems are not that different. But fundamentally, DCS can be thought of as a Complete Solution (a system tailored for an application), and PLC/SCADA an Integrated Architecture (component products that work together).

In the next few slides we will try to dive into what this meansPht trin cho cc ng dng khc nhau

5/26/20122121Bob

Lets look at the technology that makes up both a DCS and PLC-based system. Field Device (transmitter vs. drive)I/O (analog vs. discrete)Controller (continuous high-availability vs. high-speed logic)HMI (supervisory system vs. machine operation)Engineering (function blocks vs. ladder logic)Network (high-availability, high-performance, standards-based)Supervisory control (process optimization vs. business intelligence)Business integration

From a technology viewpoint, the systems are not that different. But fundamentally, DCS can be thought of as a Complete Solution (a system tailored for an application), and PLC/SCADA an Integrated Architecture (component products that work together).

In the next few slides we will try to dive into what this meansSo snh 2 h PLC/HMI v DCS

5/26/20122222Bob

Lets look at the technology that makes up both a DCS and PLC-based system. Field Device (transmitter vs. drive)I/O (analog vs. discrete)Controller (continuous high-availability vs. high-speed logic)HMI (supervisory system vs. machine operation)Engineering (function blocks vs. ladder logic)Network (high-availability, high-performance, standards-based)Supervisory control (process optimization vs. business intelligence)Business integration

From a technology viewpoint, the systems are not that different. But fundamentally, DCS can be thought of as a Complete Solution (a system tailored for an application), and PLC/SCADA an Integrated Architecture (component products that work together).

In the next few slides we will try to dive into what this meansCu trc h PLC+HMI

5/26/20122323Bob

Lets look at the technology that makes up both a DCS and PLC-based system. Field Device (transmitter vs. drive)I/O (analog vs. discrete)Controller (continuous high-availability vs. high-speed logic)HMI (supervisory system vs. machine operation)Engineering (function blocks vs. ladder logic)Network (high-availability, high-performance, standards-based)Supervisory control (process optimization vs. business intelligence)Business integration

From a technology viewpoint, the systems are not that different. But fundamentally, DCS can be thought of as a Complete Solution (a system tailored for an application), and PLC/SCADA an Integrated Architecture (component products that work together).

In the next few slides we will try to dive into what this meansKin trc dng my tnh ca PLC

5/26/20122525Bob

Lets look at the technology that makes up both a DCS and PLC-based system. Field Device (transmitter vs. drive)I/O (analog vs. discrete)Controller (continuous high-availability vs. high-speed logic)HMI (supervisory system vs. machine operation)Engineering (function blocks vs. ladder logic)Network (high-availability, high-performance, standards-based)Supervisory control (process optimization vs. business intelligence)Business integration

From a technology viewpoint, the systems are not that different. But fundamentally, DCS can be thought of as a Complete Solution (a system tailored for an application), and PLC/SCADA an Integrated Architecture (component products that work together).

In the next few slides we will try to dive into what this meansPhn cng ca PLC

5/26/20122626Bob

Lets look at the technology that makes up both a DCS and PLC-based system. Field Device (transmitter vs. drive)I/O (analog vs. discrete)Controller (continuous high-availability vs. high-speed logic)HMI (supervisory system vs. machine operation)Engineering (function blocks vs. ladder logic)Network (high-availability, high-performance, standards-based)Supervisory control (process optimization vs. business intelligence)Business integration

From a technology viewpoint, the systems are not that different. But fundamentally, DCS can be thought of as a Complete Solution (a system tailored for an application), and PLC/SCADA an Integrated Architecture (component products that work together).

In the next few slides we will try to dive into what this meansV d: S7-300 v S7-400 ca Siemens

5/26/20122727Bob

Lets look at the technology that makes up both a DCS and PLC-based system. Field Device (transmitter vs. drive)I/O (analog vs. discrete)Controller (continuous high-availability vs. high-speed logic)HMI (supervisory system vs. machine operation)Engineering (function blocks vs. ladder logic)Network (high-availability, high-performance, standards-based)Supervisory control (process optimization vs. business intelligence)Business integration

From a technology viewpoint, the systems are not that different. But fundamentally, DCS can be thought of as a Complete Solution (a system tailored for an application), and PLC/SCADA an Integrated Architecture (component products that work together).

In the next few slides we will try to dive into what this meansCc chc nng thng dng ca PLC- X l cc gi tr vo/ra: Chuyn i D/A, A/D, lc nhiuHn ch tn hiu ra - iu khin:iu khin logic, kha lin ng, iu khin trnh t iu chnh t ng: iu khin PID, iu khin m - T chn on - X l truyn thng

5/26/20122828Bob

Lets look at the technology that makes up both a DCS and PLC-based system. Field Device (transmitter vs. drive)I/O (analog vs. discrete)Controller (continuous high-availability vs. high-speed logic)HMI (supervisory system vs. machine operation)Engineering (function blocks vs. ladder logic)Network (high-availability, high-performance, standards-based)Supervisory control (process optimization vs. business intelligence)Business integration

From a technology viewpoint, the systems are not that different. But fundamentally, DCS can be thought of as a Complete Solution (a system tailored for an application), and PLC/SCADA an Integrated Architecture (component products that work together).

In the next few slides we will try to dive into what this meansCc tnh nng qua trng ca PLCTnh nng thi gian thc Hiu nng CPU, dung lng b nh X l a nhim, theo s kin v theo thi gian Chu k vng qut, chu k tc vKh nng ghp ni vo/ra Cc loi tn hiu vo/ra Vo/ra phn tn Ghp ni bus trng, bus thit bLp trnh thun tin Ngn ng theo chun quc t IEC 61131-3 Kh nng iu khin lai (lin tc, trnh t v logic) Th vin khi chc nng mnhKh nng ghp ni truyn thng Kh nng h tr cc chun giao thc Kh nng lp trnh phn tn

5/26/20122929Bob

Lets look at the technology that makes up both a DCS and PLC-based system. Field Device (transmitter vs. drive)I/O (analog vs. discrete)Controller (continuous high-availability vs. high-speed logic)HMI (supervisory system vs. machine operation)Engineering (function blocks vs. ladder logic)Network (high-availability, high-performance, standards-based)Supervisory control (process optimization vs. business intelligence)Business integration

From a technology viewpoint, the systems are not that different. But fundamentally, DCS can be thought of as a Complete Solution (a system tailored for an application), and PLC/SCADA an Integrated Architecture (component products that work together).

In the next few slides we will try to dive into what this meansPhng php lp trnh cho PLC

5/26/20123030Bob

Lets look at the technology that makes up both a DCS and PLC-based system. Field Device (transmitter vs. drive)I/O (analog vs. discrete)Controller (continuous high-availability vs. high-speed logic)HMI (supervisory system vs. machine operation)Engineering (function blocks vs. ladder logic)Network (high-availability, high-performance, standards-based)Supervisory control (process optimization vs. business intelligence)Business integration

From a technology viewpoint, the systems are not that different. But fundamentally, DCS can be thought of as a Complete Solution (a system tailored for an application), and PLC/SCADA an Integrated Architecture (component products that work together).

In the next few slides we will try to dive into what this meansThit b HMI chuyn dng Operator Pannel (OP), Touch Pannel (TP)Thit k gn, bn cng nghip cao, gi thnh caoRing cho mt h PLC (giao thc c quyn) hoc cho nhiu h PLC (giao thc m)Phn mm c s ci t sn Pht trin ng dng HMI vi PC + phn mm cng c pht trin cung cp km theo

5/26/20123131Bob

Lets look at the technology that makes up both a DCS and PLC-based system. Field Device (transmitter vs. drive)I/O (analog vs. discrete)Controller (continuous high-availability vs. high-speed logic)HMI (supervisory system vs. machine operation)Engineering (function blocks vs. ladder logic)Network (high-availability, high-performance, standards-based)Supervisory control (process optimization vs. business intelligence)Business integration

From a technology viewpoint, the systems are not that different. But fundamentally, DCS can be thought of as a Complete Solution (a system tailored for an application), and PLC/SCADA an Integrated Architecture (component products that work together).

In the next few slides we will try to dive into what this meansThit b HMI chuyn dng5/26/201232

32Bob

Lets look at the technology that makes up both a DCS and PLC-based system. Field Device (transmitter vs. drive)I/O (analog vs. discrete)Controller (continuous high-availability vs. high-speed logic)HMI (supervisory system vs. machine operation)Engineering (function blocks vs. ladder logic)Network (high-availability, high-performance, standards-based)Supervisory control (process optimization vs. business intelligence)Business integration

From a technology viewpoint, the systems are not that different. But fundamentally, DCS can be thought of as a Complete Solution (a system tailored for an application), and PLC/SCADA an Integrated Architecture (component products that work together).

In the next few slides we will try to dive into what this meansPhn mm HMI/SCADA chuyn dngThng thng chy trn PC + WindowsC kh nng ghp ni vi nhiu loi PLC ca nhiu hngPht trin ng dng bng cch son tho v cu hnh thay cho lp trnhC hn 50 sn phm c mt trn th trngCc sn phm ni ting: iFIX (Intellution, GE Fanuc) InTouch, Factory Suits (Wonderware) WinCC (Siemens) RSView (Rockwell Automation) 5/26/20123333Bob

Lets look at the technology that makes up both a DCS and PLC-based system. Field Device (transmitter vs. drive)I/O (analog vs. discrete)Controller (continuous high-availability vs. high-speed logic)HMI (supervisory system vs. machine operation)Engineering (function blocks vs. ladder logic)Network (high-availability, high-performance, standards-based)Supervisory control (process optimization vs. business intelligence)Business integration

From a technology viewpoint, the systems are not that different. But fundamentally, DCS can be thought of as a Complete Solution (a system tailored for an application), and PLC/SCADA an Integrated Architecture (component products that work together).

In the next few slides we will try to dive into what this meansThanks for your attention5/26/20123434Bob

Lets look at the technology that makes up both a DCS and PLC-based system. Field Device (transmitter vs. drive)I/O (analog vs. discrete)Controller (continuous high-availability vs. high-speed logic)HMI (supervisory system vs. machine operation)Engineering (function blocks vs. ladder logic)Network (high-availability, high-performance, standards-based)Supervisory control (process optimization vs. business intelligence)Business integration

From a technology viewpoint, the systems are not that different. But fundamentally, DCS can be thought of as a Complete Solution (a system tailored for an application), and PLC/SCADA an Integrated Architecture (component products that work together).

In the next few slides we will try to dive into what this means