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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塊開關(guān)量輸入信號(hào)卡，可采集384點(diǎn)信號(hào)；7塊開關(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)行采用遙控開關(guān)操作與全模擬流程盤顯示。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。

ALLEN BRADLEY 1326AB-B430E-21 SER. C NSMP
ALLEN BRADLEY 1326AB-B520E-M2L SER. B REMAN
ALLEN BRADLEY 1326AB-B520E-S2L SER. B NSFS
ALLEN BRADLEY 1326AB-C2E-11-C5-X069 SERVO MOTOR 5.2 KW 3000 RPM   
ALLEN BRADLEY 1336-B003-EAD-FA2-S1 SER.A REMAN
ALLEN BRADLEY 1336-B007-EAD-S1 SER. A AC DRIVE   
ALLEN BRADLEY 1336-B010S-ECD-L3-RP3 SER.A NSMP
ALLEN BRADLEY 1336-BDB-SP20D SER. C   
ALLEN BRADLEY 1336F-B020-AA-EN-HAS2-LA1-L6 SER. A NSNP
ALLEN BRADLEY 1336F-B020-AA-EN-HAS2-LA2-LA3-L4 SER.A DRIVE   
ALLEN BRADLEY 1336F-BRF200-AN-EN SER. A NSMP
ALLEN BRADLEY 1336S-B010-AA-EN-HA2-L6 SER. D REMAN
ALLEN BRADLEY 1336S-B020-AN-EN3-HA1-L6 SER. D * REMANUFACTURED *
ALLEN BRADLEY 1336S-B020-AN-EN4-HAP-L5 SER. D     
ALLEN BRADLEY 1336S-B020-AN-EV4-GM1-HA2-L6D SER. D     
ALLEN BRADLEY 1336VT-B010-EAN-FA2-L1-S1 SER. A UNMP
ALLEN BRADLEY 1391BAA45 RE10220056 SER. D REMAN
ALLEN BRADLEY 1391B-AA45 SER. D * REMANUFACTURED *
ALLEN BRADLEY 1394C-SJT05-A SER. C F/W V6.01 UNMP
ALLEN BRADLEY 1394-SJT10-A SER. A F/W V5.01 UNMP
ALLEN BRADLEY 1394-SJT10-A SER. A F/W V6.01 UNMP
ALLEN BRADLEY 1394-SJT10-C-RL SER. B DIGITAL SERVO CONTROLLER 308/460V     
ALLEN BRADLEY 1394-SJT10-C-RL SER. B F/W V3.6 UNMP
ALLEN BRADLEY 1398-DDM-019 NSNP
ALLEN BRADLEY 1398-DDM-150 F/W D UNMP
ALLEN BRADLEY 1400ELKC6 SER. E PANELVIEW REV. E (REMANUFACTURED)   
ALLEN BRADLEY 1400ELKC6 SER. G F/W 5.16 NSNP
ALLEN BRADLEY 1400-ELTC6 SER. G REV. D FRN 5.16 PANELVIEW   
ALLEN BRADLEY 150-A97NBD SER. B NSNP
ALLEN BRADLEY 150-B135NBD SER. A NSNP
ALLEN BRADLEY 150-B97NBD SER. A (BR/WH) NSMP
ALLEN BRADLEY 1745-LP156 SERIES C     
ALLEN BRADLEY 1747-L543 PROCESSOR UNIT SER. C F/W 8 NSNP
ALLEN BRADLEY 1747-L543 SER. B F/W 11 (NO KEY) NSMP
ALLEN BRADLEY 1747-L543 SER. C F/W 3 NSMP
ALLEN BRADLEY 1747-L551 SER. C (NO KEY) REMAN
ALLEN BRADLEY 1747-L551 SER. C F/W 10 NSMP
ALLEN BRADLEY 1747-L551 SER. C F/W 11 (NO KEY) NSMP
ALLEN BRADLEY 1747-L551 SER. D F/W 13 (NO KEY) NSMP
ALLEN BRADLEY 1747-L551 SER. D F/W 13 NSMP
ALLEN BRADLEY 1756-L61S SER. B F/W 1.10 NSMP
ALLEN BRADLEY 1756L63 SER.A F/W 1.4 DATE: 2006     
ALLEN BRADLEY 1756-L71 SER. B F/W 1.010 DATE: 2017     
ALLEN BRADLEY 1756-L71 SER. B F/W 1.010 DATE: 2017 NSFS
ALLEN BRADLEY 1771-HS1   
ALLEN BRADLEY 1771-HS1 SER. A F/W 03.01 NSMP
ALLEN BRADLEY 1771-IR SER. A F/W L INPUT MODULE (REMANUFACTURED)   
ALLEN BRADLEY 1771-IR SER. D F/W 8 DATE: 2015 NSFS
ALLEN BRADLEY 1775-A1 PLC-3 PROGRAMMABLE CHASSIS   
ALLEN BRADLEY 1785-ENET SER. A F/W C INTERFACE DATE: 1998 *FACTORY SEALED*
ALLEN BRADLEY 1785-ENET SER. B F/W D DATE: 2003 NSFS
ALLEN BRADLEY 1785-L20E SER.E F/W B.2 PROCESSOR (NO KEY)   
ALLEN BRADLEY 1785-L30B SER. A F/W P.1 REMAN
ALLEN BRADLEY 1785-L30B SER. E F/W D PROCESSOR DATE: 1999     
ALLEN BRADLEY 1785-L40B SER. C F/W E   
ALLEN BRADLEY 2094-BC04-M03-S SER. A F/W 1.98 NSMP
ALLEN BRADLEY 2094-BC04-M03-S SER. B F/W 1.122 NSMP
ALLEN BRADLEY 2094-BC07-M05-S SER. C F/W 1.127 NSMP
ALLEN BRADLEY 2094-BC07-M05-SB1122 SER. B F/W 1.122 NSNP
ALLEN BRADLEY 2098-DSD-HV220-SE SER. B F/W V1.52 NSMP
ALLEN BRADLEY 20BC085A0ANNANC0 SER. A F/W 3.003 UNMP
ALLEN BRADLEY 20BC085A0ANNANC0 SER. B F/W 4.001 (AS PICTURED) UNMP
ALLEN BRADLEY 20BC085A0ANNANC0 SER. B F/W 4.001 UNMP
ALLEN BRADLEY 20BC085A0ANNANC0 SER. B F/W 9.001 UNMP
ALLEN BRADLEY 20BD022A0AYYANN0 SER. A AC DRIVE   
ALLEN BRADLEY 20BD022A3AYNAND0 SER B F/W 10.001 AC DRIVE     
ALLEN BRADLEY 20BD027A0AYNAND1 SER. A F/W 3.003 NSMP
ALLEN BRADLEY 20BD027A3AYYANA0 SER. A F/W 3.002 REMAN
ALLEN BRADLEY 20BD040A3AYNADA0 SER. A F/W 3.002 (AS PICTURED) NSNP
ALLEN BRADLEY 20DD5P0A3EYYANCBL SER. A F/W 4.002 UNMP
ALLEN BRADLEY 20DD5P0A3EYYANCBL SER. A F/W 5.002 UNMP
ALLEN BRADLEY 2107MS-GXCB509/1 SER. Q   
ALLEN BRADLEY 2711-KC1 SER. C F/W 5.02.01 NSNP
ALLEN BRADLEY 2711-KC1X SER. C REV I FRN 5.02.00 (w/ KEY)   
ALLEN BRADLEY 2711P-B15C15D2 SER. A UNMP
ALLEN BRADLEY 2711P-K12C4D1 SER.G PANEL VIEW PLUS MODULE   
ALLEN BRADLEY 2711P-T10C6A6 SER. A (BR/WH) NSMP
ALLEN BRADLEY 2711P-T12C4D8 SER. A NSMP
ALLEN BRADLEY 2711P-T15C4B2 SER. A PANELVIEW (REMANUFACTURED)   
ALLEN BRADLEY 2711-T10G20 SER. C REV. C FRN 4.43     
ALLEN BRADLEY 2711-T10G8X SER. E F/W 4.48 (REMANUFACTURED)     
ALLEN BRADLEY 2711-TC1X SERIES C OPERATOR INTERFACE   
ALLEN BRADLEY 2711-TC4 SER.F INTERFACE (NO KEY) (REMANUFACTURED)   
ALLEN BRADLEY 2711-TC4X SER.F W/ KEY INTERFACE (REMANUFACTURED)   
ALLEN BRADLEY 2750-AHPR1 INTELLIGENT ANTENNA (AS PICTURED)     
ALLEN BRADLEY 500FL-FOB92 SER. L 480V (BR/WH) NSMP
ALLEN BRADLEY 509-FOS SER. L NSNP
ALLEN BRADLEY 520F-EOA SER. B STARTER     
ALLEN BRADLEY 6180CS-NV2 SER. B NSNP
ALLEN BRADLEY 6180P-15KPXPX SER. E UNMP
ALLEN BRADLEY 801-FSC14 SER. A (BR/WH) NSMP
ALLEN BRADLEY 8520-S5 RA08020097 SER. C REMAN
ALLEN BRADLEY 8520-SER10-2Q-4Q SER. A REMAN
ALLEN BRADLEY 8520-SER5-2Q-4Q SER. A REMAN
ALLEN BRADLEY DRIVE 20DD3P4A3EYNANCNL SER. A   
ALLEN BRADLEY F-4050-Q-H00AA SER. A NSNP
ALLEN BRADLEY MPL-B330P-MJ24AA SER. A SERVO MOTOR 5000RPM   
ALLEN BRADLEY MPL-B580F-MJ72AA SER. A NSMP
ALLEN BRADLEY PANELVIEW 1200 2711-TC4 SER F FRN 5.10.00 INTERFACE     
ALLEN BRADLEY PANELVIEW 1400 2711-T14C8X SER. A F/W 4.20 (REMAN)   
ALLEN BRADLEY PANELVIEW 900 2711-T9C1 SER. C F/W 4.00 (REPAIRED)   
ALLEN BRADLEY POWERFLEX 70 20AE052A0AYNANC0 SER. A F/W 4.001 AC DRIVE     
ALLEN BRADLEY POWERFLEX 700 20BD040A3AYNAND0 SER. B AC DRIVE   
ALLEN BRADLEY R2711B6C2L1/C PANEL VIEW   
ALLEN BRADLEY RP-144447 KIT   
ALLEN BRADLEY SLC 500 1747-L543 SER. B F/W 9 PROCESSOR UNIT   
ALLEN BRADLEY SLC 500 1747-L543 SER.B PROCESSOR (NO KEY) REMAN
ALLEN BRADLEY ULTRA 1398-DDM-019X-DN SER. A SERVO DRIVE     
ALLEN BRADLEY ULTRA 1398-DDM-020X SERVO DRIVE   
ALLEN BRADLEY VERSAVEIW 6182H-15TEH4D SER A OPERATOR INTERFACE   
AMADA PDT-R3B-10   
ANTON PAAR DPRN4122 349581 FLOW DENSITY TRANSDUCER   
APANTEC 10047-001 UNMP
APANTEC RAM606 NSNP
APANTEC SDA3E NSNP
ARISTA BOXPC-304K COMPUTER + MONITOR     
ASCO 2063816RF 125VDC NSMP
ASCO 833-354201003694 UNMP
ASCO X2063816RF12013 3/8" 125VDC NSMP
ASCO X2063816RF12013 3/8" 125VDC NSNP
ATLAS COPCO ETDSL21-04-I06-PS UNMP
ATLAS COPCO PF3007-G-DN-HW (NO KEY) NSMP
AVTRON AV685N1E8Y8YP000 INCREMENTAL ENCODER       
B&R AUTOMATION 5PC810.SX02-00 5P81:JONRED-08 NSNP
BAILEY 547121FAAZ2 NSNP
BAILEY SEQUENCE MODULE INSEM01     
BAILY AND PORTER 50SM13A1BXD10ACEC2101 SIGNAL CONVERTER   
BALDOR BL0052A03 AC SERVO DRIVE   
BALDOR SD26BA05-PO AC SERVO DRIVE   
BALDOR ZD18H407-E   
BANNER ENGINEERING MGR7216A 32300 NSMP
BAUMULLER BFK 12/30/400-2002   
BAYSIDE RA115-030-LB NSNP
BECK 11-208-111548-03-01 NSMP
BECK 20-2701-20     
BERGER LAHR WDP5-118.05100 DRIVE   
BIHL WIEDEMANN BWU2227 NSNP
BONFIGLIOLI ACU401-19A NSMP
BOSCH 0811404623 NSNP
BOSCH 1070071221-102 SERVO CONTROLLER     
BOSCH 1070071221-102 SERVO CONTROLLER       
BOSCH SM5/10-TA SERVO MOTOR   
BOSTON GEAR VOR13BBLP24 NSNP
Brand New
BRANSON 947MA CONTROL UNIT   
BROWNING 7MVC110S NSMP
BRUENINGHAUS HYDROMATIK LA10VO100FE1/31R-PSC12K07-SO203 00987077 NSNP
CANBERRA DSA-1000 UNMP
CARL REHFUSS SM031HU-IEC63C NSNP
CARLYLE 06DM3136CC3650 NSNP

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