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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 TELEMECANIQUE XBT-GT-2110 XBTGT2110 with cable

PROFACE FN-HC10SK41 NSFP FNHC10SK41

Siemens Contactor 3RT1033-3AK60 110V 50Hz 120V 60Hz

SIEMENS Simodrive Sinumerik 6RB2100-0NA01 includes 6RB2100-0SA01

Numatics Communication Module "Block" 4 Units Rack

SIEMENS SIMODRIVE POWER MODULE 6SN1123-1AA00-0EA2

SIEMENS Simodrive 6SN1123-1AA00-0AA1 6SN11231AA000AA1

SIEMENS CONTROLLER CARD 6FC5357-0BB35-0AE0

Advantech Remote Data Acquisition Module ADAM-4013 NIB

Allen-Bradley 2711-B6C1 Panelview 600 NIB

ABB 9F60BHH905 VIZ-75 Transformer w/ GE Fuse 120V

Acterna JDSU FST 2310 Cable Tester sonet DS1 to OC-12c 2209

6ES5921-3WB11 6ES5921-3WB13 6ES5921-3WB14 CPU/PC Siemens 3 CNC

8536SGO1VO2 SIZE 5 STARTER WITH 120V COIL 8536SG01V02

SIEMENS 6SE7-023-8ED61-Z USPP 6SE70238ED61Z

BAILEY CONTROLS IMMFP-12 USPP IMMFP12

ASEA BROWN BOVERI YT213001-AB USPP YT213001AB

MODICON AM-S911-000 USPP AMS911000

INDRAMAT MHD112C-024-PG0-AN USPP MHD112C024PG0AN

ATLAS COPCO 8433-5900-00 USPP 8433590000

VOGEL 203155 USPP 203155

Siemens 6ES5-451-4UA13/6ES5451-4UA13 DIGITAL OUTPUT MODULE NIB

SIEMENS 6ES5 700-8MA11 I/O Bus Module Terminal Unit S5 -NO BOX

SIEMENS S5 6ES5 430-4UA13 6ES54304UA13 Digital

Siemens S5 CPU 941 Block Version 6ES5 941-7UA12 NOS

Siemens 6ES7 972-0BB50-0XA0 DP, BUS CONN PROFIBUS NIB

Siemens S7-200 EM231 6ES7 231-0HC22-0XA0 EM 231

Siemens 3TF4011-0B

HONEYWELL TC-CCR013 302 REDUNDANT NET INTERFACE MODULE PLC 97112972-301 TESTED

WATERS SYSTEM INTERFACE MODULE -b

Siemens 6ED1 055-1HB00-0BA0 6ED10551HB000BA0

Siemens LOGO! 6ED1 055-1MD00-0BA1 in Box

Omron 3G2C2-SI021

Schneider Modicon AS-J830-001 ASCII LANGUAGE MODULE

Schneider Modicon PROGRAMMABLE CONTROLLER AS-584L-251

Schneider Modicon AS-H827-103 NSPP ASH827103

Schneider Modicon LOT OF 4 AS8534000 CONNECTOR SETS

Schneider Modicon AS-E480-904

Schneider Modicon AS-P120-000 Power Supply Module NIB

TELEMECANIQUE PLC PREMIUM TSXPSY5500 POWER SUPPLY

Schneider Telemecanique TSX Nano TSX 07301028 TSX07

Siemens Touch Panel TP 170B TP170B 6AV6 545-0BC15-2AX0 6AV6545-0BC15-2AX0

Siemens 6AV3627-1JK00-0AX0 6AV3 627-1JK00-0AX0 SIMATIC OP27 Mono Keypad Panel

SIEMENS SINUMERIK 6FR2490-0AH12 Kuka ACR-GRT-PHG 6FR24900AH12

FS ALLEN BRADLEY 1756-DHRIO SERIES C COMMUNICATION INTERFACE MODULE

SIEMENS Simodrive Sinumerik 6SC 6100-0GB11 Power Supply Board

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

SIEMENS UNCUT KEY AND KEYLESS REMOTE 08 09 10 HONDA ACCORD FCC ID: KR55WK49308

Allen-Bradley A-B PanelView 1400e Terminal 2711E-K14C6X

AB,ALLEN-BRADLEY BULLETIN GMC DIGITAL SERVO CONTROR 22KW 1394 ,AXIS 15KW,VM

AC TECH ADJUSTABLE SPPED AC MOTOR CONTROL M12150C

A06B-0853-B190#3000 GE FANUC AC SERVO SPINDLE REMANUFACTURED

75kva transformer 400v-400v/231v volt 3 phase delta wye 380v

REXROTH 1-070-083-221 USPP 1070083221

ALLEN BRADLEY 6170-EDCD1Z1EBZZ/A USPP 6170EDCD1Z1EBZZA

ALLEN BRADLEY 2711-K10G8 USPP 2711K10G8

INDRAMAT MDD112D-N-030-N2L-130PB0 NSPP MDD112DN030N2L1B

YASKAWA ELECTRIC SGMGH-30ACA6E USPP SGMGH30ACA6E

WINDSOR MPMZL5S112 USPP MPMZL5S112

KEYENCE CORP LK-031 USPP LK031

Siemens 6ES5-255-3AB11 USPP 6ES52553AB11

SIEMENS 6ES5 400-7AA13 6ES54007AA13

SIEMENS PLC OUTPUT MODULE 6ES5 454-7LA11 16XDC24V

Siemens Central Mounting Rack 6ES5-700-1LA12

Siemens 6ES7 211-0BA22-0XB0 6ES7211-0BA22-0XB0

Siemens OP17 6AV3617-1JC30-0AX1 Membrane Keypad , ping Worldwide

RELEASE SuperMicro X9DRX-F MB FULL MFR

Texas Instruments 510-7105

SYMBOL PDF 1000 INTERFACE BARCODE MODULE PL-140-1000A

Tyan S2882UG3NR K8S Pro Dual S940 MB Refurbished

Siemens CPU214 6ES7 214-1AC00-0XB0 6ES7214-1AC00-0XB0

Modicon MA-4947-200

Schneider Modicon /Gould/115VAC 8-Pt Output Module AS-B350-001

Schneider Modicon AS-B863-001 Register Input ASB863001 N170

Schneider Modicon AS-BDEP-218 USPP ASBDEP218

Schneider Modicon AS-BDEP-215 INPUT MODULE 16 POINT 5V TTL ASBDEP215

Schneider Modicon -AS-584L-XXX

Schneider Modicon DISCRETE INPUT MODULE AS-BDEP-218 QTY X 11

Schneider Telemecanique Circuit Breaker GV2-RS08 C NIB

Schneider Gould Modicon AS-BDEP-215 Input Module 16pt

Q172EX Mitsubishi PLC 2 Channel Synchronous Encoder Card

SIEMENS 6ES5-451-7LA12/6ES5451-7LA12 OUTPUT MODULE RFB

SIEMENS 6DD1-606-3AC0 USPP 6DD16063AC0

MERCEDES E Class TELEAID COMMUNICATION MODULE OEM

SIEMENS SIMODRIVE 6SN1123-1AA00-0HAOPEN BOX

SIEMENS SINUMERIK 840D/DE NCU 573.4 6FC5357-0BB34-0AA0 6FC53570BB340AA0 NIB

SIEMENS /MOORE 39ACM24BAN/16139-76 ADVANCED CONTROL MODULE XLNT

Allen-Bradley SLC500 Output Module 1746-0W16

ALLEN BRADLEY SERIES 9 OPERATOR INTERFACE COMPUTER 8520-VOP1 REV. 01

ABB robots: Servo motor 3HAC17326-1 / 3HAC021346-001 for IRB 2400

A06B-0147-B088#0075 FANUC SERVO MOTORS

05-24-02-00 HASS LASER POWER SUPPLY REMANUFACTURED

OMRON CFP0269 NSFP CFP0269

ALLEN BRADLEY 1756-L63 NSFP 1756L63

ALLEN BRADLEY 1336F-BRF15-AF-EN-GMS1-HJ2-L6 NSPP 1336FBRF15AFENGM

GENERAL ELECTRIC DS200GDPAG1AGC USPP DS200GDPAG1AGC

SYMAX 8030-CRM-511 NSFP 8030CRM511

SIEMENS RD63T180 NSPP RD63T180

CDS CDS-PMI41008-1GFV USPP CDSPMI410081GFV

Siemens 6ES5 948-3UA12 6ES59483UA12

Siemens Simatic S5 6ES5525-3UA11 6ES55253UA11 Interface

SIEMENS 6ES5-726-1CC50/6ES5726-1CC50 CABLE ASSEMBLY NNB

Siemens 6ES5 491-0LA12/6ES54910LA12/6ES5491OLA12

Siemens 6AV6 641-0BA11-0AX0 seal opened

SIEMENS LOGO 230RC 6ED1052-1FB00-0BA0

RUSCO ELECTRONIC SYSTEMS 12913-200 NSPP 12913200

Telemecanique LB1-LD03M22

Siemens S5 6ES5-308-3UB11 INTERFACE MODULE S5 6ES53083UB11

Wago 758-870/000-111 WAGO-I/O-IPC-G2 Linux 2.6 codesys visu PROFIBUS dp master

SIEMENS 6SE7090-0XX84-0AA1 6SE7 090-0XX84-0AA1 FreeShip

Modicon AS-MBII-001

Schneider Modicon AS-B817-116 ASB817116 Isolated Input Module

Schneider Modicon AS-B827-032 INPUT MODULE ASB827032

Schneider Modicon AS-B872-002 ASB872002 Fast Shipping

Schneider Modicon AS-B354-001 good in condition

Schneider Modicon DAP 212 AS-BDAP-212 DISCRETE ASBDAP212

Schneider Modicon AS-J470-000 USPP ASJ470000 PROGRAMMING ADAPTER

Schneider Electric ZB4B0G31 Series B Contact Block with Indicator Light

SIEMENS 6ES5 430-7LA12 INPUT MODULE NIB

Rigol Digital Color Oscilloscope 100M dual CH DS1102CD

SIEMENS A1-106-100-504/R1-106-100-804 PWR INT BD NIB

SIEMENS Sinumerik Input Module 6FX1192-4AA00 E Stand A & 00

Range Rover HSE Nokia XVJ500046 Mobile Cell Phone Communication Module Computer

SIEMENS Driver 6SN1118-1NH01-0AA1 (6SN11181NH010AA1)NIB

SIEMENS Sinumerik 840D NCU Box 6FC5247-0AA00-0AA2 Version G

SIEMENS 6FC3984-7CL41 6FC3984-7CL41 BUTTON SWITCH USMT MILL CNC MACHINE

AllenBradley2711E-K10C6PanelView1000EOperatorInterfaceSer.DRev.B

Allen Bradley Transformer Pilot Light 800T-P26

ABB IRB 2400 SER 24-29338 ROBOT S4C PLUS CNTRLR TEACH PENDANT W/ MATCHED SET

Advanced Fiber Solutions TBX61-SM-SC, SM source and Meter 1310/1550 SC W/Toolbo

(Q4-2) 1 BALDOR BC20H220-CL DC CONTROL DRIVE Q4-2

MEASUREX 51402797-100 USPP 51402797100

ALLEN BRADLEY 1336F-BX060-AN-EN-L6 USPP 1336FBX060ANENL6

GENERAL ELECTRIC 04019J47G0001 NSFP 04019J47G0001

FANUC A16B-3200-0412 USPP A16B32000412

SIEMENS 6ES5-244-3AB31 USPP 6ES52443AB31

RELIANCE ELECTRIC 69089-19E NSFP 6908919E

SKF 64010000 NSPP 64010000

Siemens 6ES5 470-8MB11 6ES54708MB11

Siemens 6ES5-951-7NB21 USPP 6ES59517NB21

SIEMENS 6ES54418MA11 OUTPUT MODULE 8POINT 24VDC

Siemens 6ES5 100-8MA01 /6ES5100-8MA01 S5-100U CPU 100 CPU MODULE XLNT

Siemens S5 ADAPTION CASING 6ES5 491-0LB11 250V

Siemens C98043-A1630-L1

Siemens 6ES5 460-4UA13 6ES54604UA13

Square D 8030 COM-291

Roland SC-7 Sound Module and Computer Interface w orig. Power Supply and Manual

WS-C2955C-12 Cisco Catalyst 2955C-12 Ethernet Switch 12TX W/MM UPLINKS

Siemens 6ES7332-7ND02-0AB0 6ES7 332-7ND02-0AB0 NIB

Siemens SITOR Fuse 3NE3336 3NE3 336

Schleicher UKE B 31806981 284 085

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

Schneider Modicon AS-B556-001 USPP ASB556001

Schneider Modicon AS-W808-002 NSFP ASW808002

Schneider Modicon AS-BNUL-200 PLC

Schneider Modicon AS-B829-016

MODICON AEG AS-B356-001 24VDC Output Module

Siemens Apogee MBC Module PTM6.4D20 Analog Input Module

SEL-2505 SCHWEITZER REMOTE I/O MODULE L@@K

Siemens OP15 MMI screen 6AV3515-1MA30

SIEMENS Sinumerik 6FC5203-0AF00-0AA0 Operator Panel

SST SST-PFB-SLC Communication Module 1DP WOW

SIEMENS 6SN1123-1AA00-0BA1 Version A Simodrive LT-Modul Int 25A Card Module

SIEMENS 6SN1162-0EA00-0AA0 SIMODRIVE SHIELD CONNECTION PLATE

SIEMENS 6FC5247-0AA02-1AA0 Sinumetrik FPCI/ISA WOW

AEROTECH BA30 SERVO AMPLIFIER

ALLEN-BRADLEY 160-BA01NPS1P1 0.5HP 460VAC Control. in good condition

ABB BAILEY SYMPHONY CONTROLS DIGITAL IMASI23 ANALOG INPUT SLAVE MODULE 88283

ADEPT TECH 10338-53100 USPP 1033853100

(2) Systems Available Click for Pics Both Tested

INDRAMAT DSC1.6-50-200 USPP DSC1650200

TELEMECANIQUE VZ3-TP2M12M16 NSFP VZ3TP2M12M16

EUROTHERM DRIVES 955D-8R32 USPP 955D8R32

CUTLER HAMMER ECN2419CAD NSFP ECN2419CAD

RELIANCE ELECTRIC 0-57552-2 USPP 0575522

MODICON PC-E984-255 USPP PCE984255

JOHNSON CONTROLS FIC-101-701 NSFP FIC101701

Siemens 6ES5 350-3KA21 6ES53503KA21

Siemens 6ES5-581-0RA12 USPP 6ES55810RA12

SIEMENS 6ES5-375-0LC11 NSPP 6ES53750LC11

Siemens 6ES5 375-0LA41 -- 6ES53750LA41

Siemens Analog Output 6ES5 470-8MA12 working

Siemens 6SA8252-0AC61 CU5

Siemens TP27-10 6AV3627-1QL00-0AX0 Touchscreen Glass, Bergquist Touch Products

Siemens 6ES7331-7NF00-0AB0

Lutron RA-SCI RadioRA Switch Closure Interface

Xyratex SS-1202-FC 12 36GB 1Gb/s FC-AL JBOD

Siemens 6ES7 235-0KD00-0XA0 #2

SIEMENS OP7 6AV3607-1JC30-0AX0 Membrane Keypad

Reliance 0-51839-11

Schneider Modicon AS-B572-010 OUTPUT MODULE 0-10V ANALOG

Schneider Modicon AS-984A-003 USPP AS984A003

Schneider Modicon AS-P451-681 USPP ASP451681

Schneider Modicon AS-B572-010

Schneider Modicon AS-9584-000 CPU - Un Surplus

Modicon Schneider Automation Output Module DAP 210/AS-BDAP-210

SIEMENS SIMATIC S5 DIGITAL INPUT MODULE 6ES5420-4UA14

Siemens 6ES7 331-7PF11-0AB0 -- 6ES73317PF110AB0

SIEMENS SIMATIC MULTI PANEL TOUCH 6AV6545-0DA10-0AX0

SIEMENS 6DD1600-0AF0 Simadyn D CPU Controller

SIEMENS SINUMERIK OP015 OP 015 6FC5203-0AF03-0AA0 NIB

SIEMENS 6SN1123-1AA00-0HA1

SIEMENS SIMODRIVE 6SN1118-0DM21-0AA0 6SN11180DM210AA0

SIEMENS CONTROLLER CARD 6FC5356-0BB11-0AE1

Advantest Hand Held Programmer

ALLEN-BRADLEY 2711-B5A15X PANELVIEW OPERATOR INTERFACE PANEL NIB

ABB ACH401604132 ACH400 ADJUSTABLE FREQUENCY AC 50HP 480V-AC MOTOR DRIVE B227879

Acterna MTS 5000e 5100e OTDR Media Test Set Opt Col-FD-HD

6ES7157-0AC82-0XA0 Brand , Factory Sealed,

86543-1/MS28132-1; CONVERTER

SIEMENS 6SE9-221-0DC40 NSFP 6SE92210DC40

BALDOR ZD18H440-EO USPP ZD18H440EO

ATLAS COPCO LTD27SR005-RE USPP LTD27SR005RE

MODICON AS-884A-301 USPP AS884A301

INDRAMAT TVM2.2-50-220-300-W1/115/220 USPP TVM2250220300W11

BENSHAW MX2SEP-125VDC-300A-3-S-C NSPP MX2SEP125VDC300A

YASKAWA ELECTRIC CPCR-FR05RB7-R8S USPP CPCRFR05RB7R8S

Siemens 6ES5-453-6AC11 NSFP 6ES54536AC11

SIEMENS 6ES5 734-1BD20 CONVERTER RS232 CABLE ASSEMBLY

SIEMENS S5 6ES5 451-4UA13 6ES54514UA13

Siemens S5 PLC 6ES5 420-8MA11 Digital Input Module.

Siemens 6ES7151-7AA20-0AB0

Siemens Semikron Inverter Module SKIIP22NAC12IT42

Siemens 3VU1300-1MG00