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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。

Siemens 6ES5 430-4UA13 -FS- 6ES54304UA13

Texas Instruments 505-4216A

SEM/TEM Olympus SIS ADDA II soft imaging system module interface

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

Siemens 6RA70 C98043-A7010-L2 Card

Siemens LOGO! 12/24RC 6ED1052-1MD00-0BA3

Modicon NM-0278-000

Schneider Modicon AS-BDAP-209

Schneider Modicon AS-B885-110/ASB885110 Beautiful

Schneider Modicon AS-516P-006 NSFP AS516P006

Schneider Modicon AS-M380-004 MEMORY CARTRIDGE ASM380004

Schneider Modicon AS-8533-003 NSPP AS8533003

Schneider Modicon +24VDC bbbbb Module AS-B233-001

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Schneider/Modicon 140CPS11420 CPS11420 NIB

Siemens Sinumerik 840 1P-6FC5103-0AD13-0AA0 1P6FC51030AD130AA0 _ 570-524-9101-00

SIEMENS 500-5016 ANALOG OUTPUT MODULE 5005016

SIEMENS SINUMERIK 810D/840DPCU20 6FC5210-0DF00-1AA1

CISCO WS-SVC-CMM-24FXS Communication Media Module -Tested-

SIEMENS SIMODRIVE 6SN1145-1BA02-0CA1SINUMETIK 840D NCU-BOX 6FC52476FC53576SN

SIEMENS SIMODRIVE 6SN1145-1AA01-0AA1SINUMETIK 840D NCU-BOX 6FC52476FC5356 BBA

Advantech MIO-260 MIO Module w/ 2 COM, 4 USB NIB

ALLEN-BRADLEY 2750-PA POWER SUPPLY

ABB 3HAB5957-1

ACCURAY 086266-001 SYS SCANNER VME VMEBUS PCB CIRCUIT BOARD A B212718

A1-106-100-502 SIEMENS CONTROL BOARD

80C05 Tektronix 80C05 40 GHz Optical Sampling Module 1520-1580nm CAL/

SIEMENS 6ES5-928-3UA12 NSFP 6ES59283UA12

ASEA BROWN BOVERI 57275847 NSFP 57275847

ALLEN BRADLEY 8200014735 USPP 8200014735

LOUIS ALLIS 46S01676-0050 USPP 46S016760050

HITACHI ASCII-1H NSFP ASCII1H

ALLEN BRADLEY 1336F-CWF-50-AN-EN USPP 1336FCWF50ANEN

RELIANCE ELECTRIC 45C-35 USPP 45C35

Siemens 6ES5-370-0BA11 USPP 6ES53700BA11

SIEMENS 6ES5 450-8MD11 6ES54508MD11

SIEMENS TI PLC BUS TERMINAL W/ CABLE S5 6ES57770BB01

Siemens Output Module 6ES5-454-7LA11S5 23536

Siemens 6ES7 291-8GE20-0XA0 Memory Module

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PWR-C49-300DC CATALYST 4900 300-WATT DC POWER SUPPLY

GSM Modem Pool 16 Ports RS232 PCI interface Wavecom Module AT Commands Q2403

Tripp Lite B055-001-PS2 PS2 Server Interface Module

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Siemens IM153 6ES7 153-1AA01-0XB0 6ES7153-1AA01-0XB0

Modicon SW-AP9D-ADA

Schneider Modicon Gould AS-B248-501 Output Module 60vdc 2.5A

Schneider Modicon ASJ890101 FACTORY RARE FIND RIO Processor AS-J890-101

Schneider Modicon AS-E380-904 Enhanced Excel Cartridge

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Schneider Modicon Module AS-B885-110 ASB885110 B885 -110 B885-110

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Schneider MODICON ADU206 ADU 206

POWER PROCESS 512-K8705 TEMPERATURE CONTROLLER 2OUT 2AL

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SIEMENS 6FC5356-0BB11-0AE1 SINUMERIK 840D NCU561.3 QUANTITY!!!

High Speed Homeplug Powerline Communication Module UART

SIEMENS SIMODRIVE 6SN1146-1AB00-0BA1SINUMETIK 840D NCU-BOX 6FC52476FC5356 #2ST

SIEMENS SINUMERIK 6FX1133-0BA00 6FC3171-0AB CONTROL OPERATING PANEL MORI SEIKI

SIEMENS 3VU1300-1MF00 STARTER MOTOR PROTECTOR NIB

Allen-Bradley Panelview 1200 Operator Interface 2711-TC1X

58-46-929 ATLANTA GEARBOX

ABB Vacuum Circuit Breaker Conversion GE AM5-100 to ABB 5-VKBR-250 - 1200A 4160V

A06B-0153-B188#7075 FANUC SERVO MOTORS REMANUFACTURED

747 MAIN DECK CARGO CX 383 CENTER GUIDE

RELIANCE ELECTRIC 45C115 USPP 45C115

ALLEN BRADLEY 1785-LTR2 USPP 1785LTR2

ALLEN BRADLEY 150-B54NBD NSFP 150B54NBD

GIDDINGS & LEWIS 1-21762-01 USPP 12176201

TRICONEX 7400028-100 USPP 7400028100

TEKTRONIX 1240 USPP 1240

FOXBORO P0400YE USPP P0400YE

Siemens 6ES5-105-3RB31 USPP 6ES51053RB31

SIEMENS 6ES5 373-1AA61 6ES5373-1AA61 6ES53731AA61

SIEMENS 6ES5-951-7LB12 USPP 6ES59517LB12

Siemens 6ES5 756-0AA11 Slot Filler Module

Siemens 6ES5 375-0LA15 6ES5375-0LA15 Memory Card FS

Siemens LOGO! Memory Card 6ED1056-5CA00-0BA0 NIB

REMOTE I/O ADAPTER MODULE PLC 2/3/5 1771-ASB PLC-5

Texas Instruments 305-01AB

Spirent Adtech 400319 /OC48c ATM Single Mode Interface

VMware 1041M-T2B Server 4 Six-Core Istanbul 256Gb RAM

SIEMENS C85139-E1721-A880

Modicon AS-T984-104

Schneider Modicon AUTOMATION DEP 218 TSX COMPACT AS-BDEP-218 DISCRETE 16PT bbbbb

Schneider Modicon Automation AS-BDAP-212 BDAP 212 Module

Schneider Modicon AS-BADU-205 NSPP ASBADU205

Schneider Modicon ASB807132 24VAC bbbbb Module AS-B807-132

Schneider Modicon POWER SUPPLY AS-P120-000 OPEN BOX

Schneider Modicon AS-S901-100 I/O Processor Rev A14 AIND/UVG

SCHNEIDER 140-DI0-330-00/140-DIO-330-00 TSX QUANTUM DIGITAL OUTPUT MODULE XLNT

SHARP JW-212N bbbbb MODULE DC12/24 VOLT

Reliance 57416 57C416 Remote I/O Comm. Module NIB

Siemens 6ES7 322-5GH00-0AB0 OUTPUT MODULE 16DO 24-48VU

SIEMENS SINUMERIK 6FX1120-4BD04 6FX11204BD04

NRF24LE1 = NRF24L01 + MCU supply test procedures Wireless communication Module

SIEMENS SIMODRIVE 611 6SN1118-0DJ23-0AA2 NIB

SIEMENS SINUMERIK OP012 6FC5203-0AF02-0AAL Membrane Keypad

SIEMENS Gamma X-6FC bbbbbbing Machines

ALLENBRADLEY1771OADOUTPUTMODULE16POINT120VAC

ALLEN BRADLEY SLC500 BASIC MODULE 1746-BAS C 1746BAS C

ABB PM511V16 3BSE011181R1 PR:E

YORK OPTISPEED DRIVE 790 HP ELECTRICAL CABINET

~ ~EXCELLENT~ P/N:5188169

MODICON AS-584L-231 USPP AS584L231

ALLEN BRADLEY 1395B/S-B65-D1-PZ USPP 1395BSB65D1PZ

GRAHAM 175H8858 USPP 175H8858

GE FANUC IC3600SIXH1 USPP IC3600SIXH1

SIEMENS 6SE6-430-2UD32-2DA0 NSFP 6SE64302UD322DA0

SIEMENS 6AV4-010-1AA00-0AA0 USPP 6AV40101AA000AA0

ALLEN BRADLEY 150-A35NBD USPP 150A35NBD

Siemens 6ES5 923-3UA11 6ES59233UA11

Siemens S5 6ES5 955-3NC13 POWER SUPPLY MODULE

SIEMENS 6ES5-482-8MA12 I/O MODULE 6ES54828MA12

Siemens 6ES5 430-8MC11/6ES5430-8MC11 bbbbb MODULE XLNT

Siemens S5-100U CPU Module 6ES5-102-8MA01

Siemens DCS Module 6DS1720-8AA in Box, Seal opened,

SCHNEIDER TSXASZ200 TSX MICRO PLC I/O MODULE 2ANALOG

Square D 8854-SL-1

SIEMENS 6ES5312-3AB12 SIMATIC S5 INTERFACE MODULE 6ES53123AB12

WE SHIP SAME CISCO WS-C3750G-12S-S CATALYST 3750G-12S SWICTH 1YR WARRANT

SIEMENS 6GK7343-1CX00-0XE0

Siemens TP27 6AV3 627-1QK00-2AX0 Touchscreen Glass

Schneider Modicon TSX DEP 216/AS-BDEP-216 Compact Module 042244630

Schneider Modicon AS-BDAU-204Compact Analog OUT ASBDAU204

Schneider Modicon AS-B814-001 USPP ASB814001

Schneider Modicon PROGRAMMABLE CONTROLLER 884 AS-884A-311

Schneider Modicon AS-P371-002 RECONDITIONED

Schneider Modicon AS-BDAP-210 OUTPUT MODULE

SCHNEIDER TSX-DSY-16S4 OUTPUT MODULE TSXDSY16S4 TSX DSY16S4

Siemens 6ES7 321-1BH02-0AA0 bbbbb MODULE 16POINT 24VDC E-STAND: 04

Samsung MLC SSD MMCRE28G5DXP-0VB SATA Hard Drive MMCRE28G5MXP-0VB

SIEMENS DRMC-11-51 4720 POWER METER OPERATOR INTERFACE GOOD TAKEOUT

SIEMENS SINUMERIK 810 BOARD 6FX1126-8BA

SHIMADZU CBM-101 Communications Bus Module

SIEMENS 6SN1146-1AB00-0BA1 6SN1 146-1AB00-0BA1 SIMODRIVE 611 Infeed Module QTY

SIEMENS 6SC6901-2AA00-Z SIMODRIVE tested warranty

SIEMENS 6FC5114-0AA01-0AA2 6FC51140AA010AA2 version B

ALLENBRADLEYISOLATEDOUTPUTPLCMODULE1771-ODZFACTORYSEALEDC15-3-52

ALLEN BRADLEY X-137793 NSPP X137793

ABB DSQC 324 16meg memory board 3HAB5957

Adjustable Frequency Controller 200hp 248amp max

(A3) 1 GOULD MODICON AS-506P-F32 REV C21 MEMORY MODULE A3

INDRAMAT TWM1.2-100-300-W1 USPP TWM12100300W1

YASKAWA ELECTRIC CIMR-G5M20300F NSFP CIMRG5M20300F

FANUC A20B-0008-0376 NSPP A20B00080376

EUROTHERM DRIVES 590/28000/D/4/1/0/0 USPP 59028000D4100

RELIANCE ELECTRIC DSA-MTR-30A USPP DSAMTR30A

PACIFIC SCIENTIFIC SC-753A001-01 USPP SC753A00101

PILLAR CORPORATION AB7615-25 NSPP AB761525

Siemens 6ES5 453-4UA11 6ES54534UA11

Siemens 6ES5923-3UC11 COORDINATOR MODULE SEALED BOX

SIEMENS 6ES5-420-4UA14 USPP 6ES54204UA14

Siemens 6ES5 451-8MA11 -- 6ES54518MA11

Siemens S5 6ES5 431-8MA11 6ES54318MA11

Siemens 6SL3054-0CF01-1AA3

Siemens 6ES7 323-1BL00-0AA0 -- 6ES73231BL000AA0

Spectrum Controls SBAI-1002-11

NELLCOR PURITAN BENNETT STAR SYNC PATIENT TRIGGERED INTERFACE /SIMV MODULE

WS-X4448-GB-SFP CISCO CATALYST 4500 48-PORT 1000BASE-X

Siemens 6ES7 953-8LG20-0AA0 6ES79538LG200AA0 128K MMC in Box ping

Siemens S5 PLC Lithium Battery 6ES5 980-0AA21 NIB

Reliance 2GU41002

Schneider Modicon GROUPE DAP 216N/AS-BDAP-216N SEALED

Schneider Modicon AS-B266-501 USPP ASB266501

Schneider Modicon AS-S480-200 USPP ASS480200

Schneider Modicon AS-B865 PLC

Schneider Modicon AS-B804-116 Output Module 115V

MODICON MAGELIS OPER. INTERFACE TERMINAL XBTH021010

SIEMENS S5 6ES5 465-7LA13 Analog bbbbb Module

Siemens 6ES5 470-4UC13 -FS- 6ES54704UC13

SIEMENS S5 6ES5 453-7LA11 Digital Output Module

SIEMENS 6FC5235-0AA05-0AA1 SINUMERIK 3.5 FLOPPY

SIEMENS SINUMERIK FX1121-4BA02 FX11214BA02

SIEMENS 6SN1114-0NB01-0AA1 611U Option-Profibus DP3 NIB

SIEMENS SIMODRIVE 611 BOARD 6SN1118-0DH21-0AA0 NIB

SIEMENS 6FC9320-5DB00 6FC93205DB00 Fast Shipping

Advantech PCA-6114P4-C REV.C2

ALLEN-BRADLEY 1771-OAD/C AC OUTPUT MODULE PLC S21C

ABB ADVAC 2000 Amp 15 KV AA3J2777XX000UP vacuum circuit breaker ANSI 2005

Adept 10338-53100 Rev P.A Dual B+ AMP

6SE3126-8CJ40 6SE-3126-8CJ40 MIDI MASTER MD1850/2

9669 Ft Raychem 55PC1224-24-2/6-9-F940 Cables 0.3/ft

STROMBERG SAFUI80F500 USPP SAFUI80F500

CUTLER HAMMER 92P00836-00 USPP 92P0083600

CDS PMI-4100 USPP PMI4100

NEMATRON CORP IWS-1934 USPP IWS1934

MITSUBISHI A2ACPUP21-S1 NSPP A2ACPUP21S1

FISHER ROSEMOUNT 667-34-3/4 NSPP 6673434

Siemens 6ES5 242-1AA32 6ES52421AA32

Siemens 6ES5-470-4UC13 USPP 6ES54704UC13

SIEMENS 6ES5-188-3UA12/6ES5188-3UA12 RACK XLNT

SIEMENS S5 Interface Module 6ES5 318-8MB12

Siemens 6ES5 375-0LD21 Eprom Memory Submodule 6ES5375

Siemens 6ES7951-0KE00-0AA0 6ES79510KE000AA0 NIB

SIEMENS touch panel 6AV3627-1QL01-0AX0 TP27-10 Bergquist Touch Products

Siemens 6ES5431-8MA11

iSimple CHYAH06 Select 2007-up Chrysler/Dodge Radio Replacement Interface Module

YOSHIMURA PIM2 PERIPHERAL INTERFACE MODULE HONDA CRF450R 2009

Siemens 6ES7 138-4CA00-0AA0 with 6ES7 193-4CC20-0AA0

Siemens OEM-OP37 6AV3637-7AB16-0AM0 Membrane Keypad

Parker OEMZL6104

Schneider Modicon AS-B875-102 HIGH SPEED bbbbb MODULE

Schneider Modicon AS-521P-008 MEMORY MODULE PROM/PC BOARD IOP AS521P008

Schneider Modicon AS-M485-000 USPP ASM485000

Schneider Modicon AS-853-5000 PLC

Schneider Modicon 2 Slot Extension Subrack DTA 202 WARRANTY

Schneider Modicon DEP218/AS-BDEP-218 Discrete bbbbb 16PT TSX Compact PLC DEP

SIEMENS TI CTI 505-4316 bbbbb MODULE 24VDC

Schneider/bbbemecanique Inverter Control Panel VW3A1101

Siemens Simatics S7 CPU 314 6ES7-314-1AE01-OABO

Siemens 4700-BDRMC3-11HN Power Meter Software Ver 2.3.0.4 White Digital Readout

SIEMENS SINUMERIK 840C 6FC5103-0AE01-0AA1

CISCO WS-SVC-CMM COMMUNICATION MEDIA MODULE

SIEMENS SIMODRIVE 6SN1145-1BA01-0BA1SINUMETIK 840D NCU-BOX 6FC52476FC5356#B1

SIEMENS SIMODRIVE 6SN1145-1AA01-0AA1SINUMETIK 840D NCU-BOX 6FC52476FC5356 [3]

Advantech PCA-6114P10 REV.B1

Allen-Bradley 2711-T9C1 PanelView 900

ABB 3HAC0373-1 Main Computer Board

Accuray 64844-004 64844004 PC Board CSQ

A201K2EA EATON CUTLER HAMMER

810A21C ALLEN BRADLEY 810 A21C