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集散控制系統(tǒng)（Distributed Control System－DCS）集計(jì)算機(jī)技術(shù)、控制技術(shù)、通信技術(shù)、CRT技術(shù)于一體，廣泛應(yīng)用于生產(chǎn)過(guò)程控制系統(tǒng)。隨著計(jì)算機(jī)和網(wǎng)絡(luò)技術(shù)的飛速發(fā)展，產(chǎn)生了一種新型的控制系統(tǒng)———現(xiàn)場(chǎng)總線控制系統(tǒng)（Fieldbus Control System－FCS）。但國(guó)內(nèi)生產(chǎn)企業(yè)的情況是：大多數(shù)企業(yè)還處于模擬儀表和人工控制的階段，采用DCS控制系統(tǒng)的企業(yè)仍是少數(shù)。由于DCS應(yīng)用廣泛、技術(shù)成熟，在現(xiàn)有的技術(shù)條件和市場(chǎng)條件下，F(xiàn)CS還不能完全取代DCS，而且目前現(xiàn)場(chǎng)總線設(shè)備和系統(tǒng)還十分昂貴。因此，除了新建企業(yè)外，國(guó)內(nèi)企業(yè)在較長(zhǎng)時(shí)間不可能全面采用現(xiàn)場(chǎng)總線技術(shù)，而必須走逐步發(fā)展、過(guò)渡的道路。 ??我們?cè)谏虾Ｊ�化股份公司環(huán)保部水質(zhì)凈化廠監(jiān)控系統(tǒng)的改造項(xiàng)目中，對(duì)3個(gè)生產(chǎn)單元已有的DCS和PLC進(jìn)行改造，增加通信功能，實(shí)現(xiàn)總調(diào)度室對(duì)各生產(chǎn)裝置的集中監(jiān)控。 2?系統(tǒng)改造方案??   根據(jù)水質(zhì)凈化廠各生產(chǎn)單元的功能和建設(shè)階段，分為廠外調(diào)節(jié)池、污水一段、氧化溝、四期污水處理、污泥脫水、污泥干化6個(gè)生產(chǎn)單元。另外，在廠部設(shè)有總調(diào)度室，但是總調(diào)度室的監(jiān)控水平較為落后，改造之前基本上不能對(duì)各個(gè)生產(chǎn)單元進(jìn)行監(jiān)控。為了適應(yīng)生產(chǎn)需要，提高生產(chǎn)效率，改善操作條件，加強(qiáng)監(jiān)控手段，確保各生產(chǎn)裝置的正常運(yùn)行，急需對(duì)各生產(chǎn)單元和總調(diào)度室進(jìn)行技術(shù)和設(shè)備的更新改造，從而能在總調(diào)度室對(duì)各裝置進(jìn)行監(jiān)視管理，及時(shí)了解各裝置的運(yùn)行情況，達(dá)到指揮及時(shí)和調(diào)度準(zhǔn)確的目的。 2．1?現(xiàn)場(chǎng)監(jiān)控系統(tǒng)的改造 ??現(xiàn)場(chǎng)監(jiān)控系統(tǒng)的改造要充分利用原有儀表和設(shè)備，主要考慮可靠性和實(shí)時(shí)性。首先對(duì)自控程度較高的3個(gè)單元進(jìn)行改造（系統(tǒng)結(jié)構(gòu)見(jiàn)圖2—1）： ??四期污水處理生產(chǎn)單元控制設(shè)備配置了兩套ALLEN－BRADELY公司PLC設(shè)備。25塊開(kāi)關(guān)量輸入信號(hào)卡，可采集384點(diǎn)信號(hào)；7塊開(kāi)關(guān)量輸出信號(hào)卡，可輸出112點(diǎn)信號(hào)；3塊模擬量輸入信號(hào)卡，可采集24點(diǎn)信號(hào)。兩套AB—PLC通過(guò)DH＋（數(shù)據(jù)高速通道）實(shí)現(xiàn)數(shù)據(jù)共享。在原有的現(xiàn)場(chǎng)控制計(jì)算機(jī)上分別增加以太網(wǎng)卡，通過(guò)以太網(wǎng)將實(shí)時(shí)數(shù)據(jù)送到總調(diào)度室處理。??輸出192點(diǎn)信號(hào)；1塊模擬量輸入信號(hào)卡，可采集8點(diǎn)信號(hào)。系統(tǒng)運(yùn)行采用遙控開(kāi)關(guān)操作與全模擬流程盤(pán)顯示。在原有的Siemens S5－115UPLC上增加RS－232通訊模塊（CP524）和1臺(tái)現(xiàn)場(chǎng)操作站，用點(diǎn)對(duì)點(diǎn)方法連接，使PLC的數(shù)據(jù)通過(guò)現(xiàn)場(chǎng)操作站送到以太網(wǎng)上，與總調(diào)度室監(jiān)控計(jì)算機(jī)通信。但RS－232傳輸速率只有9600bps，操作站僅對(duì)現(xiàn)場(chǎng)起到監(jiān)視作用

FIVES 502-03657-03R5
Giddings & Lewis  YSM102
Giddings & Lewis  401-56453-00
Giddings & Lewis, 573-26406-00, M-1017-6277
Giddings & Lewis -- 502-03B53-02
Giddings & Lewis DSA 175-230-S 
Giddings & Lewis 502-02122-00 
Giddings & Lewis 502-02121-00
Giddings & Lewis 502-02181-00 
Giddings and Lewis 401-30235-01 NSM2304
GIDDINGS & LEWIS 501-02856-00, 502-02676-00
Giddings and Lewis 401-30235-00 NSM2304
Giddings & Lewis 401-57268-30 
GIDDINGS & LEWIS  810-21283-00
GIDDINGS & LEWIS  1-21776 
GIDDINGS & LEWIS  MMC-SD-1.0-230 
GIDDINGS & LEWIS PiC900 502-03640-02
Giddings & Lewis 502-03518-22R2
Giddings & Lewis 502 03640 02R1 
Giddings & Lewis 502-03846-00R4 
Giddings & Lewis Kollmorgen M.1301.4145 
Giddings & Lewis M.1300.7372
GIDDINGS & LEWIS 502-02906-00
Giddings & Lewis 501-02982-00 572-02722-50 
GIDDINGS LEWIS  PIC900 502-03551-00R2
GIDDINGS & LEWIS PM050AH460PH-0 
GIDDINGS & LEWIS 572-02734-50 
Giddings & Lewis 501-02981-00 572-02721-50
Giddings & Lewis 1700160 
G&L GIDDINGS & LEWIS 502-03518-20R3
GIDDINGS & LEWIS PiC900 502-03640-02R1
GIDDINGS & LEWIS 502-02906-00 
Giddings & Lewis  502-02-814-16 501-03202-00
Giddings & Lewis pic900 cpu486 502-03994-01
Giddings & Lewis 401-56451-00 
GIDDINGS & LEWIS 810-21977-01
Giddings & Lewis 502-03644-00 
Giddings & Lewis Control M.1302.0498
GIDDINGS & LEWIS PiC 900 502-03605-00R3
GIDDINGS & LEWIS PiC900 502-03642-03R1
Giddings & Lewis 502-03518-03
Giddings & Lewis 502-02165-00
Giddings & Lewis 502-02080-00 
Giddings & Lewis 502-03549-00
GIDDINGS & LEWIS  DSM015 401-56452-00
Giddings & Lewis PIC900 502-03782-02R1 
GIDDINGS AND LEWIS 501-03855-00
GIDDINGS AND LEWIS 502-03017-21
GIDDINGS & LEWIS 501-03410-01
Giddings & Lewis  YSM206 B24
Giddings & Lewis  501-03410-01 502-02947-01
Giddings & Lewis  DSM-100 J1
GIDDINGS&LEWIS LSM75-10-602-E2-OKA
GIDDINGS LEWIS  PIC900 502-03549-02
502-02461-00 
GIDDINGS & LEWIS 502-02869-20
Giddings & Lewis 225-4836-008 
Giddings & Lewis 501-03152-00 502-02797-01 
Giddings & Lewis 501-02259-00 502-02509-00 
GIDDINGS & LEWIS KT KEARNEY & TRECKER 20640 
Giddings & Lewis 501-01410-00
GIDDINGS & LEWIS 572-02734-50 
GIDDINGS & LEWIS 502-02426-00 
Sheffield Giddings Lewis M.1301.3933 
Giddings & Lewis NSM2302
Giddings & Lewis  ENC-H&F-015M-MCS-DCA-28-AA
Giddings & Lewis M.1300.7372-R1
Giddings & Lewis PWR-H&F-015M-MCS-000-10-AA
Giddings & Lewis 502-03673-00 
GIDDINGS & LEWIS 502-03548-00R4
Giddings & Lewis 502-02607-00 
Giddings & Lewis  LSM63-12-604-M-OKA-240N
GIDDINGS & LEWIS M.1300.5789
Giddings & Lewis  LSM23N-6-602-E1-2KA
Giddings & Lewis Aux. Station Board, 502-03951-02
GIDDINGS LEWIS EIA INTERFACE 502-02804-50 501-03168-00
GIDDINGS & LEWIS 502-02432-00 
Giddings & Lewis 1370-X-0031
Sheffield Giddings Lewis M.1301.3996 
Sheffield Giddings Lewis M.1301.3933 
Giddings & Lewis 502-02825-00 
Giddings & Lewis 502-02836-04 
GIDDINGS & LEWIS NSM5647
GIDDINGS & LEWIS  401-34227-02
Giddings & Lewis 502-02607-00 
Giddings & Lewis 501-02981-00 502-02721-00
Giddings & Lewis 217-3020-706 
Giddings & Lewis 502-03840-03R0 
Giddings & Lewis  LSM23N-6-602-E1-OKA
GIDDINGS & LEWIS NSM2304
Giddings & Lewis CPU Control Board 572-02723-83
Giddings & Lewis 501-03152-00 502-02796-01 
Giddings & Lewis 502-02844-01
Giddings & Lewis LSM75-29-602-E2-0KA
Giddings & Lewis  QES2014-135
Giddings & Lewis (572-02823-00)
Giddings & Lewis 217-3020-707 
Giddings & Lewis 502-02908-00 
Sheffield Giddings Lewis M.1301.3996 
Giddings & Lewis 502-03640-00R1 
Giddings & Lewis 502-02778-50 
GIDDINGS & LEWIS PIC900 502-03676-23R6 
GIDDINGS & LEWIS 502-02804-50 
Giddings & Lewis, 60113815PNEU, M751170-01
GIDDINGS & LEWIS M.1006.9329 / 2B-76347 
Giddings & Lewis M.1300.4946
Giddings & Lewis , 38-V23136-Z6
Giddings & Lewis M.1002.2116, Legacy 019-42698-04
Giddings & Lewis 502-0273750
GIDDINGS & LEWIS  SSM307, P/N 401-34225-01
Giddings & Lewis SSM307
GIDDINGS & LEWIS 502-03640-02 
Giddings & Lewis PicMD-20
GIDDINGS LEWIS 502-03421-00 501-04307-00
GIDDINGS & LEWIS DSM175/1150
GIDDINGS & LEWIS PM030BS490RH-0
Giddings & Lewis 401-34201-13 
Giddings & Lewis PicMD-10
Giddings & Lewis SSM320 401-34226-01 
Giddings & Lewis  HBM 111
Giddings & Lewis Tyco M.1016.9758 
GIDDINGS & LEWIS 502-02425-01
Giddings and Lewis 502-02918-00 
FIVES 502-02587-05
DANAHER MOTION M.1015.8038
GIDDINGS LEWIS CPU CONTROL 502-02723-83 501-02983-83
Giddings & Lewis Servo Motor LSM75-21-602-S-OKA
Giddings & Lewis 502-02722-50 
Giddings & Lewis 502-02797-01 
Giddings & Lewis 502-02721-50
Giddings & Lewis 502-02814-16
FIVES 573-25907-01
FIVES 502-03552-22R1 
Giddings & Lewis 501-02987-00 502-02728-00 
FIVES 502-02433-00
GIDDINGS & LEWIS 503-17600-00
GIDDINGS LEWIS  502-03113-00 501-03907-00
Giddings & Lewis 501-03299-00 502-02865-00 
Giddings & Lewis NSM2302 
FIVES 502-03676-22 
Giddings & Lewis 502-02723-52
GIDDINGS & LEWIS 502-03548-00
Giddings & lewis 502-03674-22r1
Giddings & Lewis 572-02869-00
FIVES 502-02475-00
GIDDINGS & LEWIS PiC 900 502-03657-00R7
GIDDINGS & LEWIS 501-92502-00
FIVES 502-03898-50
GIDDINGS LEWIS RELAY BOARD 502-03112-00 501-03908-00
KEARNEY & TRECKER 1-21760 / 810-21760-03 3D-18
GIDDINGS & LEWIS ( MICRO DSM) DSM030
GIDDINGS & LEWIS 0042-6677 SS 0016-6496
Giddings & Lewis 502-02165-00 
FIVES 502-02587-06
GIDDINGS & LEWIS HSM320
Giddings & Lewis, 501-04537-01
FIVES 502-02474-00
Giddings & Lewis  ENC-H&F-015M-MCS-DCA-28-AA 
Giddings & Lewis  PWR-H&F-015M-MCS-000-10-AA
Giddings & Lewis  LSM34N-10-602-E2-OKA
Giddings & Lewis  LSM130-102-304-M-OKA
GIDDINGS & LEWIS PiC 900 502-04011-11R6
GIDDINGS & LEWIS 502-03548-00R4 
Giddings & Lewis 70-15V 
Giddings & Lewis  LSM100-46-454-E2-OKA
Giddings & Lewis  501-04561-00
Giddings & Lewis  MSM215-221-304-E2-OKA
Giddings & Lewis 502-03549-02
FIVES 502-02659-00 
Giddings & Lewis  MSM215-407-304-E2-OKA
Giddings & Lewis 502-03840-03R0 
Giddings & Lewis  502-03211-00
DANAHER MOTION M.1300.0495 
GIDDINGS & LEWIS 502-02426-00
Sheffield Giddings Lewis M.1301.3933 
Giddings & Lewis 1370-X-0031
GIDDINGS & LEWIS 502-02432-00
FIVES 1-21744-02 
Giddings & Lewis 502-02734-50
FIVES 502-03814-60R1 
Giddings & Lewis 501-92502-00
GIDDINGS & LEWIS 502-03551-02R0
Giddings and Lewis 871-21979-00
Giddings & Lewis M.1300.7372-R1
FIVES 502-02472-00
DANAHER MOTION M.1016.8930
Giddings & Lewis, 501-04561-00
Giddings & Lewis 502-02607-00
Giddings & Lewis  502-03676-23
Giddings & Lewis 502-03640-00R1 
GIDDINGS AND LEWIS 501-03366-00
Sheffield Giddings  ENC-NSM-015M-MCS-DCA
Giddings & Lewis LSM63-12-604-M-OKA-240N
Sheffield Giddings PWR-NSM-015M 
Giddings & Lewis  LSM23N-6-602-E1-2KA
Giddings & Lewis , 502-03951-02
FIVES 502-03195-16 
GIDDINGS LEWIS EIA INTERFACE 502-02804-50 501-03168-00
Giddings & Lewis 502-02825-00 
Giddings & Lewis 502-02836-04 
FIVES 502-03676-20 
Giddings & Lewis 502-03673-00 
FIVES 503-15613-00
GIDDINGS & LEWIS PIC900 502-03840-03R1
Giddings & Lewis 501-03152-00 502-02796-01
FIVES 503-19184-01 
Giddings & Lewis 502-02844-01
GIDDINGS & LEWIS NSM4214
Giddings & Lewis 502-02607-00 
Giddings & Lewis 501-02981-00
GIDDINGS & LEWIS  P/N 401-34227-02
Sheffield Giddings  ENC-NSM-015M-MCS-DCA-28-AA
Giddings & Lewis 217-3020-706
FIVES 1-21711-01
GIDDINGS & LEWIS 502-02804-50
FIVES 572-03833-10 
FIVES 502-02600-00
GIDDINGS & LEWIS  M.1006.9329 / 2B-76347
Giddings & Lewis  LSM23N-6-602-E1-OKA
KEARNEY & TRECKER  1-21276 / 1-21276-02
KEARNEY & TRECKER 1-21276-03 
Giddings & Lewis 572-02723-83
FIVES 502-03674-00
FIVES 502-03202-00
Giddings & Lewis  #2 (572-02823-00)
Giddings & Lewis 502-02908-00
Giddings & Lewis 217-3020-707 
Giddings & Lewis 502-02778-50 
GIDDINGS & LEWIS NSM5647
Giddings & Lewis Tyco M.1016.9758
Giddings & Lewis Tyco 492167-1 
FIVES 502-02789-00 

注：聯(lián)系我時(shí)，請(qǐng)說(shuō)是在“傲立機(jī)床網(wǎng)”上看到的，謝謝！