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一、系统描述
　　醋酸乙烯是一种十分重要的工业原料,其市场非常广阔.它的生产过程主要分为两个大的过程: 合成和精馏.前者是发生化学反映生成醋酸乙烯的过程, 后者则是将生成的醋酸乙烯通过学,物理过程来进行提纯.其工艺流程图如下:
　2、本工艺的特点和难点
　　醋酸乙烯的生产是个塔体非常多的系统,调节回路众多,系统的关联性非常强,一个参数的控制的好坏直接影响到其他参数的控制的成败.一个系统的波动可能带垮整个系统.,因为其产品醋酸乙烯的浓度要求非常高,达到99.9%以上,因此对反应温度,以及流量等参数的控制要求非常平稳,合成反应器的中温要求170正负0.5度,醋酸蒸发器液位要求达到正负1%,还有乙炔的流量非常不稳定,可控性不太好.这些都对控制的精度提出了很高的要求.
　　3、工艺对控制系统的要求
　　a、实现各个单元操作的集中监控，包括：温度、压力、流量、液位等物理量的监测与控制。动态参数检测、控制必须准确、可靠。合成反应器的中温要求170正负0.5度,醋酸蒸发器液位要求达到正负1%,
　　b、必要的遥控措施,对突发事件如停电等，系统应采取相应的保护措施，确保在紧急情况下或需要的时候对一些关键的控制点(阀门、马达等)实施遥控。
　　c、配置必要的报警和联锁。
　　d、重要参数的记录和方便地查阅其实时趋势和历史趋势。
　　e、可随时监测有关单元的有关参数或重要设备的运行情况。
　　f、控制系统操作简单，参数设置、调整方便，便于操作，人性化的操作界面。
　　g、操作员站显示整个生产工艺流程，修改和打印各种有关参数。
　2、FB-2000NS系统硬件配置
　　本控制系统采用了三个监控站,和两个现场控制站.稳定性.两个现场控制站也采取了热备用冗余,任何一个出现了故障,自动切换到另外一个上正常运行.也增加了系统的可靠性和稳定性.所有的模拟量输出都采取了热备用,还有重要的显示参数也都采取了热备用..所有的模拟量都采取了和现场信号的光电隔离,所有的现场信号均通过了安全栅隔离. DCS的硬件配置如下: FB-2001NS -4块,FB-2005NS-3块,FB-2010NS 16块 ,FB-2020NS 28块, FB-2030NS 1块 ,FB-2040NS-4块 FB-SC20NS/R14块,FB-SC14NS/R-4块,FB-SCNS14-8块.FB-SC30NS1块. FB-SC42NS-4块.另外，报表打印机一台。

Schneider Modicon AS-B360-001 ASB360001 Relay Output NIB FS

Schneider Modicon AS8534000Connector AS-8534-000

Schneider Modicon AS-B805-016 REV. L 115V 16PT INPUT MODULE ASB805016 REPAIRED

Schneider Modicon AS-P120-000 ASP120000

Schneider Modicon ASW808002 AS-808-002

Schneider Modicon AS-B804-016 115v Output Module 16pt

Schneider Modicon DEP 220/ AS-BDEP-220 Input Module

Schneider Telemecanique ATV31HV30N4A NIB

SCHNEIDER INPUT MODULE TSXDEY32D2K

Qlogic QLE8142-SR 10Gb CNA Dual Port PCIe HBA FCoE with 10Gb optical SFP

SIEMENS 6ES5-453-4UA12/6ES5453-4UA12 OUTPUT MODULE NIB

SIEMENS 6DD1601-0AE012 mo. warrantyFree UK/EU ShippingPrice Inc UK VAT

Mercedes W215 W220 R230 navigation communication module

SIEMENS Simodrive 6SN1123-1AA00-0DA1

SIEMENS SINUMERIK 840D/DE NCUBOX 6FC5247-0AA00-0AA2

SIEMENS /MOORE 39BCMNBN APACS BCM MODULE A5E00282273/05

ALLEN-BRADLEY SPILLPROOF KEYBOARD 6189-KBE1 GOOD

Allen Bradley SLC 500 1746-0B16 Series D Output Module

ABB ROBOTICS SERVO MOTOR 1FK6083-6AZ21-9ZZ9-Z S02

A06B-0147-B084#0075 FANUC SERVO MOTORS

0-49040-2

NH RESEARCH 1107095 NSPP 1107095

ALLEN BRADLEY 1756-L61S NSFP 1756L61S

ALLEN BRADLEY 1336E-BRF100-AA-EN-HA1-L4 USPP 1336EBRF100AAEN5

GENERAL ELECTRIC 9T23Q4000G22 USPP 9T23Q4000G22

SYMAX 8010-SFI-510 USPP 8010SFI510

SIEMENS A5E00159514 USPP A5E00159514

BENSHAW BIPC-300004-03 NSPP BIPC30000403

Siemens 6ES5 946-3UA22 6ES59463UA22

Siemens SIMATIC S5 6ES5-460-7LA13 ANALOG INPUT 6ES54607LA13

SIEMENS 6ES5-721-0BB00 USPP 6ES57210BB00

Siemens 6ES5 490-LB21 6ES54907LB21 Terminal Strip NIB

Siemens 6AV6 545-0CC10-0AX0 Touchscreen Protective Film

Siemens laser Lasermodul rot 1 mW 03058336, FP-65/1LF

S2600IP4 Server Board Intel

Telemecanique GV2-P03

SIEMENS S5 6ES5 300-5CA11 IM 300 Interface Module

Wago 758-875/000-111 WAGO-I/O-IPC-C10 e Linux 2.6 codesys visu PROFIBUS dp mstr

Siemens 6SE7041-3TL84-1JC0

Modicon AS-M680-108

Schneider Modicon AS-B875-102 I/O Analog High Speed 8CH

Schneider Modicon ASB838032 PERFECT CONDITION 24 VDC Output Module AS-B838-032

Schneider Modicon AS-B872-000 USPP ASB872000

Schneider Modicon NEZA PLC TSX08CD12F8AS in Box Free Ship

Schneider Modicon CPU Module M AS-C484-065 ~Repaired Sur.~

Schneider Modicon AS-HDTA-202/ASHDTA202 Secondary rack OFFERS

SCHNEIDER MAGELLIS XBTF024610 XBT F024610 OPERATOR PANEL

SIEMENS 6ES5 431-8MA11 INPUT MODULE FACTORY SEALED

Rigol Function/Arbitrary Waveform Generators DG2041 40M with

SIEMENS A5E00159514 PANEL TOUCH SCREEN

SIEMENS Sinumerik Hand Wheel 6FC9320-5DC00

Reliance 57C-380 Communications Module DC5 Passive Tap

SIEMENS Drive 6SN1145-1BA01-0BA1

SIEMENS SINUMERIK 840D/DE NCU 573.3 6FC5357-0BB33-0AE2 NIB

SIEMENS 6FC4600-1AS01 _ I/O Module _ 6FC46001AS01

AllenBradley2711E-T14C6PanelView1400eSeriesDRev.A

Allen Bradley TTL Output Module 1771-OGD WARRANTY

ABB IRB 2400 SER 24-22330 ROBOT S4C PLUS CNTRLR TEACH PENDANT W/ MATCHED SET

Advanced Fiber Solutions AF-DR515-C0 850/1300nm Multimode Compact OTDR,

(Q10-6) 1 NIB TELEDYNE 1903-2000-01 ENHANCED DISPLAY PANEL Q10-6

MEASUREX 51305430-100 USPP 51305430100

ALLEN BRADLEY 1336F-BRF200-AA-EN-HCS2-L4E NSFP 1336FBRF200AAEN1

GE FUJI 6KDV5088R9X9 NSFP 6KDV5088R9X9

FANUC A16B-2200-0450 USPP A16B22000450

SIEMENS 6EC1110-0A NSFP 6EC11100A

RELIANCE ELECTRIC 57C-422C NSPP 57C422C

SIEMENS 6SE9-2114-DA40 NSFP 6SE92114DA40

Siemens 6ES5 470-7LC12 6ES54707LC12

Siemens 6ES5-951-7LD12

SIEMENS 6ES5-441-7LA12 OUTPUT MODULE NIB

Siemens 6ES5 998-0UB22 -- 6ES59980UB22

Siemens S5 6ES5700-0LA12 4 SLOT RACK

Siemens C98043-A1603-L41

Siemens 6ES5 464-8MC11 -FS- 6ES54648MC11

Square D 8030 COM-221

PepperlFuchs VAA-4E4A-KE-ZE/E2 AS-Interface sensor/actuator module

WS-C2960-24TC-S CISCO 2960-24TC SWITCH- W/1YR - WSC296024TCS Fast

SIEMENS 6ES7-331-7PF00-0AB0 6ES7331-7PF00-0AB0

Siemens Sinumerik 802S 802C Mechanical Keypad

Scharer 19pc10-1

Schneider Modicon ASM84A002 Perfect Controller Module AS-M84A-002

Schneider Modicon AS-B553-101 USPP ASB553101

Schneider Modicon AS-W801-012 USPP ASW801012

Schneider Modicon AS-BMOT-201/ASBMOT201

Schneider Modicon AS-B828-016 5 VTTL Output TH ASB828016

Modicon AEG MM-PMC2-100 Industrial Computer XLNT

SIEMENS DIGITAL INPUT MODULE 6ES5421-8MA12 SEALED

SFP-10G-LR LONGLINE 10GBASE-LR SFP MODULE FOR CISCO

Siemens OP1S 6SE7090-0XX84-2FK0 6SE7 0900XX842FK0

SIEMENS Sinumerik 6FC5114-0AA02-0AA2 E.Stand A 840C Central Service Board

STANDARD COMMUNICATIONS CELLULAR MODULE CMM7700-511

SIEMENS 6SN1123-1AA00-0AA1/6SN11231AA000AA1 LT-MODXLNT

SIEMENS 6SN2155-0AA10-1BA1 SIMODRIVE SERVO MOTOR w/STOBER C002G0560MT10 SERVOFIT

SIEMENS 6FC5-247-0AA11-0AA1 USPP 6FC52470AA110AA1

Advantech TPC-650 display panel

ALLEN-BRADLEY 160-P1 PROGRAMMING TERMINAL KEYPAD ""

ABB BAILEY SYMPHONY CONTROLS DIGITAL IMASI23 ANALOG INPUT SLAVE MODULE 88255

ADEPT TECH 10332-48712

(2) ALLIS-CHALMERS AIR CIRCUIT BREAKERS LA-600F 600 VOLTS 600 AMPS

INDRAMAT DDS2.1-W/200-D USPP DDS21W200D

TELEMECANIQUE TSX-RAM-51216 USPP TSXRAM51216

EUROTHERM DRIVES 590C/0350/6/3/0/1/0/00/000 USPP 590C035063010000

CUTLER HAMMER DG325NRK USPP DG325NRK

RELIANCE ELECTRIC 0-52837 USPP 052837

MODICON AS-S911-801 USPP ASS911801

IRCON MR-2002-18F USPP MR200218F

Siemens 6ES5 318-8MC11 6ES53188MC11

Siemens 6ES5-544-3UA11 NSFP 6ES55443UA11

SIEMENS 6ES5-375-0LA15 NSPP 6ES53750LA15

Siemens 6ES5 374-2KH21 SV Flash 256 kBYTE

Siemens ADAPTER CASING FOR S5-115 SYSTEM 6ES5-491-0LB11

Siemens 6RA70 C98043-A7002-L1 Power Board

Siemens TP270-10 6AV6545-0CC10-0AX0 Touch Panel NIB

Siemens 6ES5980-0MA11

Lucent 12A 3 CNPQACAAXX Adapter Interface Module

Yamaha Motif Rack ES

Siemens 6ES7 231-7PB20-0XA0 6ES7231-7PB20-0XA0 FreeShip

SIEMENS OP7 6AV3607-1JC20-0AX0 Membrane Keypad

Reliance 0-51821

Schneider Modicon AS-B801-000 ASB801000 Spare Slot Filler LNC

Schneider Modicon AS-9507-000 USPP AS9507000

Schneider Modicon AS-P421-112 POWER SUPPLY NICE

Schneider Modicon AS-B550-101 USPP ASB550101

Schneider Modicon AS-884A-311 Processor Module AS884A311 UPC

Modicon Square D XBT P022110 XBTP022110 Oper Interface

SIEMENS SIMATIC S5 INPUT MODULE 6ES5 430-7LA12 6ES5430

Siemens 6ES7 331-7SF00-0AB0 SIMATIC SM331 ANALOG SEALED

SIEMENS SIMATIC OUTPUT MODULE 24VDC TI305-15T

SIEMENS SIEMEN 6DD1681-0CA2 INTERFACE MODULE SE20.2 /BOX

SIEMENS SINUMERIK OP 010 10.4 6FC5203-0AF00-0AA1

SIEMENS 6SN1121-0BA11-0AA1 SIMODRIVE - -

SIEMENS SIMODRIVE 6SN1123-1A00-0AA0 VER C

SIEMENS CONTROLLER CARD 6FC5357-0BB11-0AE0

ADVANTECH SOM-A2552

ALLEN-BRADLEY 2711-B5A2 Panelview 550 Series F ! WOW !

ABB ACF60100166000H1200901 AC Drive 600V WOW

Acterna JDSU TTC 2000 TestPad w/ T-BERD 2310 w/ VT100 STS1 PRI DS1 DS3 TBERD

6ES7147-2AA01-0XB0 Brand , Factory Sealed,

8595EM Agilent / HP, EMC Analyzer, OPT 004/010/8ZE, Calibrated, 6 MO.

SIEMENS 6SE7-032-7EE85-0AA0 USPP 6SE70327EE850AA0

BALDOR 827710 FNFP 827710

ATLAS COPCO D302-DS7 USPP D302DS7

MODICON AS-584A-340 USPP AS584A340

INDRAMAT TRANS-01-6/1-109-468-4800 USPP TRANS01611094684

BARBER COLMAN 41AA-22002-200-1-00 USPP 41AA22002200100

XYCOM XVME-540 USPP XVME540

Siemens 6ES5-451-7LA12 USPP 6ES54517LA12

SIEMENS 6ES5 725-0AK00 6ES57250AK00

SIEMENS S5 6ES5 441-7LA11

Siemens S5 Memory Submodule 6ES5 375-0LD31 29850

SIEMENS 6ES7-133-0BH01-0XB0 6ES71330BH010XB0 FreeShip

Siemens S7-300 CPU314 6ES7 314-1AF10-0AB0

Siemens 3VU1300-0MH00

HORNER GENIUS INTERFACE MODULE HE300GEN100J HE-300GEN100J

WEIDMULLER RS-SCI INTERFACE MODULE

Siemens 6ED1055-1MM00-0BA1 6ED1 055-1MM00-0BA1 in Box

Siemens LOGO! AM2 PT100 6ED1 055-1MD00-0BA0

Omron C1000H-CPU01-E2V1

Schneider Modicon AS-J470-000 USPP ASJ470000 PROGRAMMING ADAPTER

Schneider Modicon #AS B828-016 OUTPUT MODULE 5VDC 16 PT

Schneider Modicon AS-H827-209 USPP ASH827209

Schneider Modicon MODICON/ AS-B805-016 INPUT MODULE 115VAC XLNT

Schneider Modicon AS-H827-103

Schneider Modicon Subrack AS-HDTA-200

TELEMECANIQUE TSX-AEY-1600 TSXAEY1600

Schneider Telemecanique TSXP57452

SIEMENS TI305-05T SIMATIC TI OUTPUT MODULE TI-305-05T TI30505T REPAIRED

Siemens 6AV3515-1MA32 OP15C2 6AV35151MA32 Fast Shipping

SIEMENS SINUMERIK 6FX1118-1AA02 GOOD TAKEOUT

FieldServer FS-RA-CLX-BAS-406 BACnet/IP Communication Module PS56-BAS-406 XLNT

SIEMENS SIMODRIVE RACK 6SC 6101-3A-Z

SIEMENS SIMODRIVE 6SN1145-1BA02-0CA1SINUMETIK 840D NCU-BOX 6FC52476FC53576S

SIEMENS 74G VALVE POSITIONER (B89)

Allen-Bradley AB 2706-E43J64B1 DataLiner DL40 PLC Operator Interface

ABB ( SIEMENS ) 3HAB6621-1 SERVO MOTOR 1FK6083-6AZ21-9ZZ9-Z-S03 NIB

AC TECH VFD2 M15150B

A06B-6050-H005 FANUC SERVO AMPLIFIER

8 Aluminum Tensionable Screen Frames & Cart

ROOTS I056527-200 NSFP I056527200

ALLEN BRADLEY 6180-FLIEHLDZHZZ NSFP 6180FLIEHLDZHZZ

ALLEN BRADLEY 2711P-K10C4D1 USPP 2711PK10C4D1

INDRAMAT TDM2.1-030-300-W1 USPP TDM21030300W1

YOKOGAWA DX204-2-2/BT11M1 NSFP DX20422BT11M1

XYCOM 98500-001 NSFP 98500001

LENZE E94ASHE0044 USPP E94ASHE0044

Siemens 6ES5-300-5CA11 NSFP 6ES53005CA11

SIEMENS 6ES5 420-4UA14 -FS- 6ES54204UA14

SIEMENS S5 6ES5 188-3UA12 Rack Excluding Power Supply

Siemens CPU ControllerS5 6ES5 943-7UB11 23530

SIEMENS 6ES7 212-1BB21-0XB0 6ES72121BB210XB0 CPU 222

SIEMENS OP25 OP25/A 6AV3525-1EA01-0AX0 Membrane Keypad

RELEASE SuperMicro X9DRT-HF MB ※Check W/ Us for Availability FIRST※

Texas Instruments 560-2120

Tektronix 80A03 TCA Probe Interface Module

TV One C2-8210 Corio2 DVI-U/3G/HD/SD-SDI Switcher

Siemens DCS Module 6DR2803-8C NIB

Modicon MM-FM94-000

Schneider Modicon TSX Compact Subrack DTA 202 - AS-HDTA-202

Schneider Modicon ASB875102 TESTED Analog INPUT Module AS-B875-102

Schneider Modicon AS-BDEP-297 NSFP ASBDEP297

Schneider Modicon AS-BDEP-220 INPUT MODULE ASBDEP220

Schneider Modicon -AS-884A-301

Schneider Modicon DTA 200/AS-HDTA Subrack rack back plane 5

schneider Telemecanique Limit Switch XCE-154 NIB

Schneider Discrete Input Module AS-BDEP-216 DEP 216 WARRANTY

PWR-C49M-1000AC 4900M AC POWER SUPPLY 1000 WATTS

SIEMENS 6ES5451-4UA14 DIGITAL OUTPUT MODULE NIB-FS

SIEMENS 6DD1610-0AG1 SIMADYN D MEMORY MODULE IN BOX

MERCEDES BENZ COMMUNICATION MODULE A 211 820 81 26

SIEMENS Simodrive 6SN1123-1AA01-0FA1 LT-MODUL INT.200A Version A

SIEMENS SINUMERIK 840D 6FC5210-0DA00-1AA16FC5203-0AB12-0AA1 MMC-100 HMI

SIEMENS /MOORE 16267-1-4 MODULNET INTERFACE CARD 1626714

ALLEN-BRADLEY SLC 500 PLC 1747-ASB ADAPTER WITH INPUT /OUTPUT MODULES

Allen Bradley Safety Relay 700-ZBR100AZ1 700ZBR100AZ1

ABB S4C 3HNE00313-1 Teach Pendant -

A06B-0148-B075 FANUC SERVO MOTORS REMANUFACTURED

0-58706-4

OMRON NT600M-DT211 USPP NT600MDT211

ALLEN BRADLEY 1756-M3 NSFP 1756M3

ALLEN BRADLEY 1336-RFB-80-C USPP 1336RFB80C

GENERAL ELECTRIC DS200LPPAG1AAA USPP DS200LPPAG1AAA

TAYLOR ELECTRONICS 1734FC14200A NSFP 1734FC14200A

SQUARE D 3050-EGW-1 NSFP 3050EGW1

COMPUMOTOR 2100-2-P USPP 21002P