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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 6AV3688-3ED13-0AX0 PP17-II PUSH BUTTON PANEL

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

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0190-09379 wPCB ASSY VME CPU SYNERGY UPGRADED

MTS SYSTEMS CO MPAZ-100-460-206 USPP MPAZ100460206

ALLEN BRADLEY 1756-L1M1 FNFP 1756L1M1

ALLEN BRADLEY 1336-B010-EAD-FA2 USPP 1336B010EADFA2

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Sans Digital HA-ARC-ARC1223X 2-Port Mini-SAS 6G SAS/SATA PCIe 2.0 x8 Controller

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Schneider Modicon AS-BDEP-209 ASBDEP209 8 AC Input NIB

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SCHNEIDER MODICON TC2000 INDUSTRIAL PC OPERATOR INTERFACE 3515 KPM CASE BACK

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ROBOTRON 503-1-0324-07 USPP 5031032407

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AllenBradley2711P-RDT7C/C2711PRDT7CPanelviewPlus

ALLEN BRADLEY VersaView 1500M OPERATOR INTERFACE DISPLAY 6186-M15AL SER. B

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MEASUREX 053669-01 USPP 05366901

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GE FANUC IC600LX680 USPP IC600LX680

FANUC A16B-0160-0471 USPP A16B01600471

SIEMENS 6AV7-500-0BA00-0AA0 NSFP 6AV75000BA000AA0

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SIEMENS 6ES7-315-2EG10-0AB0 USPP 6ES73152EG100AB0

Siemens 6ES5 470-4UB12 6ES54704UB12

Siemens 6ES5-945-7UA13 USPP 6ES59457UA13

SIEMENS 6ES5-440-8MA11 USPP 6ES54408MA11

Siemens 6ES5 777-0BB01 SINEC L1S5 BT 777

Siemens S5 6ES5 943-7UA22 6ES59437UA22 CPU Module

SIEMENS C98043-A1035-L5

Siemens 6ES5 521-8MA21 6ES55218MA21

Square D 8020 SMM-115

Omega IM-Loader PC to Module Interface Cable

WS-C3560-48PS-S CISCO 3560-48PS SWICTH W/1 YR -WSC356048PSS Fast Shipp

Siemens 6ES7314-1AE04-0AB0

Siemens Simodrive 611 6SN1118-0NJ01-0AA1

Reliance F-014962

Schneider Modicon AS-P933-000 POWER SUPPLY ASP933000

Schneider Modicon AS-B545-000 NSFP ASB545000

Schneider Modicon AS-W512-003 USPP ASW512003

Schneider Modicon AS-BDEP-209 PLC

Schneider Modicon AS-B825-016 24vdc Input Module C PICS

MODICON AS-8228-100 NSPP AS8228100

SIEMENS HTRI-D DUAL INPUT MODULE

SHARP ZW-32IO2 USPP ZW32IO2

SIEMENS OPERATOR INTERFACE PMU 6SE7090 0XX84 2FA0 2FAO

SIEMENS Sinumerik 6EV3 055-0DC 810T Power Supply

Tektronix TDS2CMAX Module forGPIB IEEE488 RS232 Communication TDS1K & TDS2k

SIEMENS 6SN1118-0NH00-0AA2 6SN11180NH000AA2

SIEMENS Simatic Simodrive Card C98040-A1087. .

SIEMENS 6FC5303-0AA02-0AA0 HANDWHEEL CONNECTION MODULE XLNT

Advantech POS-562 REV.A1

Allen-Bradley 1746-NO4V SLC 500 4-Ch Analog OUTPUT Module

ABB BAILEY SYMPHONY CONTROLS DIGITAL IMASI23 ANALOG INPUT SLAVE MODULE 88138

ADEPT TECH 10330-15350 USPP 1033015350

(000 no lot) Fanuc PLC 10 s rack 7cards IC693CHS391C IC693CPU331S . PRISTINE

INDRAMAT CLM01.3-X-0-2-B-FW USPP CLM013X02BFW

TELEMECANIQUE ATV-58HD33N4ZU NSPP ATV58HD33N4ZU

EDWARDS MC4160-C14 NSFP MC4160C14

CUTLER HAMMER 92005401 USPP 92005401

PHOENIX CONTACT IBS-ISA-SC/486DX/I-T NSFP IBSISASC486DXIT

MODICON AS-521P-008 NSPP AS521P008

HONEYWELL 51305508-200 USPP 51305508200

Siemens 6ES5 312-3AB12 6ES53123AB12

Siemens 6ES5-526-3LF11 NSFP 6ES55263LF11

SIEMENS 6ES5-373-1AA61/6ES5373-1AA61 MEMORY SUBMODULE NIB

Siemens 6ES5 306-7LA11 -- 6ES53067LA11

Siemens 6ES5-490-7LB21

Siemens 6GK7443-1BX00-0XE0 in Box

Siemens TP27 HMI 6AV3627-1QL00-0AX0 6AV36271QL000AX0

Siemens 6ES5927-3SA11

Lenel LNL-1300 Single Reader Interface Module

Yaskawa 87820-15003-S202 PLC Module 8782015003 NIB

SIEMENS 6ES7 223-1HF00-0XA0 in Sealed Box

Siemens OP37 6AV3637-1LL00-0FX1 Membrane Keypad ping Worldwide

Reliance 0-49002-2

Schneider Modicon AS-B805-016 800 I/O MODULE NIB

Schneider Modicon AS-884A-311 USPP AS884A311

Schneider Modicon AS-P230-080 USPP ASP230080

Schneider Modicon AS-B266-000 USPP ASB266000

Schneider Modicon AS-8534-000 Low Density Connector NIB

MODICON TELEMECANIQUE MAGELIS OPERATOR INTERFACE XBT F024110

SIEMENS SIMATIC S7 DIGITAL INPUT MODULE 6ES7 321-1BH02-0AA0 6ES7321-1BH02-0AA0

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Siemens 9350 9350DC-100-0NZZZA NIB Power Meter Display ION Profibus Access

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SIEMENS 6SN118-0AA11-0AA1 6SN11180AA110AA1 Simodrive

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Advantech PCM-9381

ALLEN-BRADLEY 2711E-K10C6 PANELVIEW 1000E OPERATOR INTERFACE

ABB 6228BZ10000D MULTIBUS SC D/F

Acterna FST-2310

6AV6112-1AB20-0DB0 COROS VP-B20

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SIEMENS 6SE3-228-4DK40 USPP 6SE32284DK40

BAILEY CONTROLS IMCOM-03 NSFP IMCOM03

ASEA BROWN BOVERI YB560103-CD/24 USPP YB560103CD24

MODICON 557VIC10400 USPP 557VIC10400

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ASEA BROWN BOVERI GNT0137211P5 USPP GNT0137211P5

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Siemens 6ES5-450-3AA11 USPP 6ES54503AA11

SIEMENS 6ES5 700-0LA12 6ES57000LA12

SIEMENS S5 6ES5 374-2KH215V Flash 256 kByte Memory 16Bit

Siemens S5 6ES5 955-3LF44 6ES5955-3LF44 6ES59553LF44

Siemens 6ES7 972-0BA51-0XA0 6ES79720BA510XA0 NIB

Siemens S7 CP443-5 Simatic 6GK7 443-5DX04-0XE0 FreeShip

Siemens 3LC5 277-1TB

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Omron 3G2A5-RM001-PEV1

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ALLEN BRADLEY 6151-BBBACDAZABZ USPP 6151BBBACDAZABZ

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INDRAMAT MDD-090C-N-030-N2L-110PB0 NSFP MDD090CN030N2L1A

YASKAWA ELECTRIC JANCD-SV02B NSPP JANCDSV02B

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Texas Instruments 505-6508

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Modicon DR-1010-000

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SIEMENS SINUMERIK 840DE 6FC5356-0BB14-0AA0 NCU 561.4

SIEMENS /MOORE 39MBXNAN/16180-1 MODULBUS EXPANDER XLNT

Allen-Bradley User's Manual Pulse Output Module Assembly Cat No. 1778-OJ_1978

Allen Bradley SLC 500 1746-N04V Ser A Analog Output Module

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A06B-0147-B084 FANUC SERVO MOTORS REMANUFACTURED

0-49015-A

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ALLEN BRADLEY 1756-L61 NSFP 1756L61

ALLEN BRADLEY 1336E-A010-AA-EN NSFP 1336EA010AAEN

GENERAL ELECTRIC 7VXAS057CD09 USPP 7VXAS057CD09

STRUTHERS DUNN DIRECTOR 4000 75T77 USPP 75T77

SIEMENS A1-106-100-822 NSFP A1106100822

BARBER COLMAN MP-481-131-0-2 USPP MP48113102

Siemens 6ES5 945-7UA23 6ES59457UA23

Siemens Simatic S5 6ES5460-4UA13 6ES54604UA13 FS

SIEMENS 6ES5-717-1AA100AA NSFP 6ES57171AA100AA

Siemens 6ES5 490-8MB11 USPP 6ES54908MB11

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S3420GP Server Board

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