個現地控制單元改造方案以供比選。 （1） 全部更新 把原有設備全部更新，改用Quantum PLC。全部更新，原有設備要全部報廢，這樣改造的成本較高，同時現場配線、安裝等工作量都較大，改造周期較長。 （2） 擴展DI/DO新屏 擴展一面屏，增加開關量輸入和輸出點數，PLC仍采用Modicon984，和上位機通信仍需采用MB+方式。由于僅僅是對原有系統進行擴充，增加了相關的點數，整個系統的功能特點以及可靠性等并沒有過提高，這種方案改造的意義不大。 （3） 擴展PLC新屏 原有屏柜保持，新擴展一面屏柜，采用Quantum PLC，Quantum PLC與原有PLC采用MB+網進行通信;與上位機通信方式改用以太網通信，即PLC直接上以太網，在新增屏柜上安裝一臺通信管理機。 在充分利用原有設備的基礎上，增加了一套Quantum PLC，數據處理能力得到很大的提高，Quantum PLC具有無與倫比的網絡連接能力，特別是應用于MODBUS PLUS網絡的站間通訊（Peer Cop）技術，其快速、準確、可靠的性能充分滿足功能要求，在新盤柜和舊盤柜之間即采用MB+網進行通迅，高速MB+網絡的通訊功能也得到了充分的利用，上位機的通迅改用了以太網方式，提高了速度和可靠性，同時改造過程中工作量也增加的不是很多，具有可行性。
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ALLEN BRADLEY 1336S-CWF20-AN-EN 2HP ADJUSTABLE FREQUENCY AC MOTOR
NEW CHESTERTON STEEL PUMP POWER END D452792
DRESSER SVI2-22123111 SVI-II AP 150PSI DIGITAL VALVE POSITIONER
WORTHINGTON 4 VANE 2-1/4 IN ID STAINLESS PUMP IMPELLER
NEW ANDERSON SR025M00501100 30IN/HG-0PSI PRESSURE TRANSMITTER
BALDOR CDPT3585 2HP 180V-DC 1750RPM 145TC DC ELECTRIC MOTOR
FOXBORO N-250HM-V SPEC 200 DISPLAY STATION MANUAL SET 0-100
GENERAL ELECTRIC GE DS3800NMEC1F1D C-ESS 6BA05 PCB CIRCUIT BOARD
ALLEN BRADLEY 1409-GOCD ARCING GROUND FAULT SER A RELAY B430963
MEASUREX 05327603 05327605 PC BOARD GP60 GRAPHICS PROCESSOR REV A
NEW VECTRAN DSR3024-864407 REV C D497590
NEW CLEAVER BROOKS Y43769 STEEL NOZZLE BLOCK D269209
NEW I-GARD NGR277-4005S/5A-C NEUTRAL GROUND 277V 400A 0.69OHM
GE FANUC IC3600KRSS1A PCB CIRCUIT BOARD D473922
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GENERAL ELECTRIC GE DS3800NFCF1E1C FIRING PCB CIRCUIT BOARD
NEW ROCHESTER RA2832 1031-032 PRINTER MODULE PCB CIRCUIT BOARD
POTOMAC ELECTRIC 08722203 DC MOTOR SCANNER ASSEMBLY B404835
ALLEN BRADLEY 520VE-EOD 120V 100HP 135A SIZE 4 MULTI-SPEED MOTOR
FERRAZ SHAWMUT A051B2DAR0-24R CURRENT LIMITING DUAL 24R 5.08KV-AC
AURORA 321 2.5 IN 2 IN 6 IN 400GPM 230/460V-AC 7-1/2HP
VICKERS 4525V50A21 28AD 50GPM VANE HYDRAULIC PUMP D496801
NEW WEED INSTRUMENT N-E11GM-IIE2-F 200-2000PSI PRESSURE
NEW WEED INSTRUMENT N-E11GM-IIE2 25-42V 200-2000PSI PRESSURE
NEW TPC WIRE 700906 THERMO-TREX CHEM-GARD 200 16AWG/12C CABLE-
BAILEY SLC01 COMMAND SERIES STRATEGIC LOOP 120/240V-AC CONTROLLER
NEW ALLEN BRADLEY 1779-KP3 DATA HIGHWAY II INTERFACE MODULE
NEW ALLEN BRADLEY 1336S-BRF100 13.9KVA 50/60-400HZ 18.5/17.5A AC
NEW KAMATICS KSC123796P SPHERICAL PLAIN 9-1/2 IN 6 IN 4-1/2 IN
NEW VAN DER GRAAF TM150B25-805 TBCW DRUM MOTOR 1/2HP 460V-AC
ARMSTRONG 1.5D 1060-002 1-1/2 IN 3/4HP 208-230/460V-AC CIRCULATOR
NEW VAN DER GRAAF TM150A25-305 ConVEYOR DRUM MOTOR 0.50HP 480V-AC
ALLEN BRADLEY 1336F-C030-AN-EN 30HP 600V 575V 400HZ 36A AC DRIVE
WORTHINGTON 2004737 1-1/2 IN ID 6 VANE STAINLESS PUMP IMPELLER
NEW ANDERSON SR071G00501100 TRI-CLAMP 0-100PSI PRESSURE
NEW HOLZ RUBBER 24-773-5.5 22X33 EXPANSION JOINT FITTING D414895
BELL & GOSSETT 60 1-1/2 IN 0-220GPM 1-1/2HP 230/460V-AC
WORTHINGTON 2114550-001 18 IN STAINLESS PUMP IMPELLER REPLACEMENT
EMCO MP-910-2F150-0150 TURBO-BAR INSERTION TURBINE TMP 275PSI
MEASUREX 08473600 ASSEMBLY POWER SUPPLY REV E VPU D218683
NEW GENERAL ELECTRIC GE 5BC42AE1003A EXPLOSION-PROOF 90V-DC
SIEMENS 1 FT5102-1AC71-1AB0 PERMANENT MAGNET 376V-AC 3PH SERVO
NEW TOTAL ConTROL QPI31200E2P QUICK PANEL 120V-AC OPERATOR
ALLEN BRADLEY 100-B600ND3 120V-AC 500HP 608A AMP AC CONTACTOR
NEW WEED INSTRUMENT N-E13DM-IIM2-FJ 20-205IN-H2O PRESSURE
NEW WEED INSTRUMENT N-E13DM-IIH2-J 20-850IN-H2O PRESSURE
NACHI AUXL111C-AO DRIVE AXIS MC TYPE AMPLIFIER 220V-AC SERVO UNIT
PACIFIC SCIENTIFIC S32HNNA-RNNM-00 PX90-010 10:1 7.5A GEAR SERVO
PACIFIC SCIENTIFIC S32GNNA-RNNM-02 PG90-010 10:1 1KW GEAR SERVO
PACIFIC SCIENTIFIC S32HNNA-RNNM-00 PG90-010 10:1 GEAR SERVO MOTOR
NEW TEXTRON W076S-MDH-C147 ACCUDRIVE 11/16IN 1-3/8 IN 25:1 GEAR
FC FLOW ConTROL 83B 92 8 IN 150 STAINLESS FLANGED KNIFE GATE
HOFFMAN A-36H3008ALLP ALUMINUM 36X30X8 IN WALL-MOUNT ENCLOSURE
NEW DYNAMATIC 15-539-1 4050 CLUTCH BRAKE PANEL 115V-AC 45V-DC
NEW TEXTRON W076S-MDH-C142 ACCUDRIVE 25:1 GEAR HEAD REDUCER
NEW ABB PHARPSCH100000 CHASSIS 48/125V-AC D POWER SUPPLY B389089
DEZURIK 9402958R001 PNEUMATIC 150 STAINLESS FLANGED 8 IN
KITO ER010L 1TON 575V-AC 3PH ELECTRIC HOIST B432650
RELIANCE 0-51879-1 PGAB GATE AMPLIFIER PCB CIRCUIT BOARD B436389
NEW AC TECH PAK PLS SAC-M1150-08P PROGRAMMABLE MODULE LIMIT
WESTINGHOUSE 4256A96G02 SCPS POWER SUPPLY REV OJ PCB CIRCUIT
WESTINGHOUSE 4256A96G02 3SCPS4 POWER SUPPLY REV G PCB CIRCUIT
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