3）保护和连锁程序。保护和连锁是程序中不可缺少的部分，必须认真加以考虑。它可以避免由于非法操作而引起的控制逻辑混乱，。
＃2远程I/O站主要用于采集＃2循泵系统的各设备的反馈信号，输出＃2循泵系统各设备的启停指令。
上位机系统与plc之间通过以太网连接，水东电厂的计算机监控系统采用南瑞集团公司的nc2000系统。narinc2000计算机监控系统是南瑞集团面向水利水电领域的新一代计算机监控系统软件［2］。nc2000具有良好的人机界面和网络功能，与施耐德plc网络通信采用tcp/ipmodbus规约。在组态环境下，设计人员对plc进行驱动配置，运行环境以图形画面形式的人机界面监控水位信息、故障报警，对有关数据存储历史库，生成报表，同时利用web功能使系统具有在线监控功能，即在授权的情况下在任何一台联网的计算机上用标准的浏览器可远程监控。限于篇幅，上位机程序不再详述。
用逻辑法设计三相异步电动机Y/△降压起动控制的梯形图。
2.PLC的软件设计
设计梯形图时以线圈为单位，分别考虑继电器电路图中每个线圈受到那些触点和电路的控制，然后画出相应的等效梯形图电路。
联系人：李工[销售工程师]
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公司全称：
福州卓凯电子科技有限公司
公司地址：
福建省福州市闽侯甘蔗街道阳光城领海1栋2608室
本公司专业销售全球**品牌备品备件
FOXBORO L0113XQ-A F8621A PCB CIRCUIT BOARD D507690
LOT 30 SPRAGUE 5GAS10 CERAMIC CAPACITOR 0.01UF 1KV D478221
AMAT 0010-10646, Simple Cathode. base Assembly, 395859
3 NEW AMAT 3300-05759 FTB TBG RDCR UNIOn ELBOW 3/4T 1/2T FLARE PFA, 1107342-1
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Folger Adam 642 CYL Strike 24VDC Non Fail Safe NFS
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Allen Bradley R4K0480YR GuardShield Safety Light Curtain
SIEMENS MICROMASTER 6SE9212-1BA40 ( 6SE92121BA40 )
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THERN 465 DEAD LOAD BEAM MANUAL HOIST 450LB WINCH TROLL
JOHN CRANE 312 S P354 RITE PAK PACKING STYLE 100M 0.312 36FT D296369
ATLAS SOUNDOLIER APC-30T OMNI-PURPOSE VARI-TAP 70W
EFD ConTROL PANEL Y5000-36002
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AE Advanced Energy LF-30 RF generator 2.5KW, Novellus R27-032578-00
AMAT 0010-20418 Assy, Lift Pedestal Preclean II, SMC NCDQ2WB50-01-0195US, 401810
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Dematic F003400117AE MDS Controller, 120VAC, 3AMP
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Allen-Bradley 1336S-BRF30-AN-EN5-HA2-L5 Plus AC Drive
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ConTROL TECHNIQUES: EMERSON UNIDRIVE SM-APPLICATIONS STDP35 REV. D
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VAC CUBES 32L 1/4 IN 3/8 IN VACUUM PUMP D448107
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ENDRESS HAUSER FMU860-U1A1B1 PROSonIC LEVEL 115V-AC LEVEL TRANSMITTER D497964
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3 NEW Fluorosilicone 22.50 x 1.29 Oring, Blue, 70, Novellus 22-373622-00
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MKS 937A Gauge Controller, 937A-120V60TR-NACTCM232, RS-232/RS-485, 400960
BEI XH25D-SS-20-ABZC-7406R-LED-SM18-S Industrial Encoder 924-01002-6331
Astex D13765 High Volatge Power Supply MW GEN, R61-2332, 400936
SICK CLV295A1012 Optic Fixed Position Barcode Scanner
AEG DNP 105 236021 6051-042.236021
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PROTO 15041 IMPACT SOCKET 6PT 1-1/2 IN DRIVE 2-9/16 IN D521743
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PP14 Barcode Scanner Sick CLX 490-0010 CLX490-0010
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OMRON XM2S-25 HOKUYO AUTOMATIC DMS-HB1-Z09 LOW VOLTAGE COMPUTER CABLE 402380
Andrew CBCT819-DF Cellular/PCS Crossband Coupler NEW
ROVEMA 1.207.08.1.061.00 STAINLESS BAR GUIDE MOUNTING RAIL D416677
ATORN 905.4515.63 33077202 CS44 MM 5 ANALOG OP65 Electronic Dial Gauge ! NEW !
NEW! FURNAS 52SA2BDB SHORT LEVER SELECTOR OPERATOR 3POS SPRING RETURN FROM R & L
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AMAT 0140-01220 HARNESS ASSY FI DUAL SECS PORT, 399002
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VAT Adaptive pressure controller PM-5, 641PM-36PM-1011/262, 64PM.3C.43
PRECISE TECHNOLOGY C-1140-1 GAGE PROBE, NEW
ICPCON CPU 80188-40 ETHENET 10 base T, C-7188EX CONTROLLER, 192-9-200-84
Bowthorpe EMP MDSP3/90/ME Modular Distribution Surge Protector MDSP Series
RITTAL AS1822 2000x1200X500MM STEEL FREE STANDING E
B&R 4C1100.01-510 REV. C0 + 4E0021.01-590 + 4E0011.01-590 ! NEW !
NAMCO EE230-30820 CYLINDICATOR QUANTITY!!
MDI 230NO-24D NEW! QUANTITY! N.O. 30A 600VAC 24VDC COIL MERCURY CONTACTOR
PARKER 02.00 CCP2ANUS142 4.000 4IN STROKE 2IN BORE 250PSI AIR CYLINDER D259093
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AMMERAAL BELTECH 132 IN 14 IN ConVEYOR BELT D502648
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CDS SIZE 75 ROTARY INDEXING TABLE, IT75 *NEW*
MU60 ABB 2x NGDR-03 58908193F NINT-53 58907995J
OMRON C200H-ID215 INPUT UNIT
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AMAT 0021-21131 Bracket Source Guide Gamma 2
AMAT 0021-39717 Block, RF Rod, 300MM
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York Replacement Compressor Piston 065-18766C NEW
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Carlisle RCP71 Super Vee-band Belt
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SIEMENS 1FT50720AF711-Z 1FT5072-0AF711-Z AC SERVOMOTOR
ALLEN-BRADLEY MPL-A1520U-EJ42AA LOW-INTERTIA BRUSHLESS SERVO MOTOR NEW QUANTITY!
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CCI SPP-2201 SURGE ConTROL 220V-AC 10A TRANSIENT SURGE SUPPRESSOR D508121
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W180 Schiele AWN Ausschaltwischer 220V AC 2.574.501
LOT 37 KVP ST612506GPW/FT-4 FALCON 5-3/4X4IN CONVEY
IDEC PS5R-B12 POWER SUPPLY
495 AMAT 1370-01020 Transistor, mortorola, 2N2222A
4 new DNTRAK 13-0072-047, switch, pivot, Robot
Unilator 16867 50pF Capacitor 10kV Type 27
AMK DV4-1-4-0B0 Servo Motor DV4140B0
NEW Disco ES MOHEH058 Flow Checker
Fanuc LTD A05B-2308-C371 ISB Unit
RELIANCE P18G1323B DUTY MASTER 3HP 230/460V-AC 1730
POWER DRAULICS - NIELSEN 510 859 003 GASKET REPLACEMENT PART D473710
FANUC A03B-0807-C107 AIA16G INPUT MODULE QUANTITY
OHMITE D225K2R0 225W 2ohm LUG RESISTOR * NIB
STRONG ARM 304-15100F MINISTATION 15.1IN FLAT PANEL DIS
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MICRO MOTION RFT9739E1SUJ ELITE REMOTE FLOW TRANSMITTER
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FOXBORO GALVO MOTOR D01242X
DD101 Bosch 1070078917-106 E:1
HOFFMAN A-PA4AXFN 115V-AC 85/100CFM COOLING FAN ASSEMBLY D512799
ALADCO 622501 DUAL CHECK BLACK 1/4 IN NPT PNEUMATIC CHE
AMAT 0040-06089 Rack Cover, Hinged, Producer
5 AMAT 3550-00007 Pin T-Handle 3/8 Diameter x 6 Inch Blk Oxide, CMP
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BOSCH PHG TEACH PENDANT
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Vogelsang Industrial Control Panel
SMC NAN400-N04 PNEUMATIC MUFFLER SILENCER REPLACEME
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ALLEN-BRADLEY 440N-G02149 GUARDMASTER SENSAGUARD NON-ConTACT SWITCH NEW!!
NUMATICS S1011320008AOO 8IN STROKE 32MM BORE RODLESS PN
WESTRonICS CB100162-01 ALARM STATUS INDICATOR REV A PCB
ARO 5204 ALUMINUM HEAD FRONT ASSEMBLY D488302
PEPPERL FUCHS NJ15-U4-E PROXIMITY 10-30V-DC 0.2A AMP SENSOR D512982
PARKER VALVE QUIK EXHAUST OR37B
PP543 Digitalausgabe Siemens 6ES5451-4UA12 6ES5 451-4UA12 e3 OVP
ISI FLUID POWER 375-02-001-33 24V-DC 1/4 IN NPT SOLENOI
ISI AUTOMATION SC64 A R S3 2 1/2 POWER CLAMP PNEUMATIC
10 AMAT 1290-02194 term BLK 10p 2row 16-14AWG 300V 20A/16C
2 NEW Swagelok 3 Port ALD Diaphragm Valve
NEW AMAT 0100-90163 PWB ASSY, WAFER ARM POS, S412
A.O. Smith C512V1 Century AC Condenser Fan Motor NIB
AMAT 0200-40080 clamp, SNNF, JMF, EXC, 200mm, 0200-40080A
Anaheim Automation Step Driver DPD60001
SKINNER LC-1-06A SELF ALIGNING LINEAR ROD COUPLER R
PHOENIX ConTACT PPC5512 DVG-OPC5512 002-BJ A.03 Ord.Nr. 2873769
ALLEN-BRADLEY 1786-TPS/B ConTROLNET COAX BNC T-TAP ConNECTOR CABLE 40IN LENGTH
TRI CLOVER 1 IN TRI-WELD SANITARY 304 STAINLESS FERRULE D434152
SIEMENS 3SE3200-1F 600V-AC 10A AMP POSITION SWITCH D522913
SORVALL RC-5C CENTRIFUGE LAB EQUIPMENT 208V-AC D524429
NORGREN C0012A POPPET VALVE 300PSI 1/4 IN NPT D3987
MARTIN 6D140TB4545 6GROOVE V-BELT SHEAVE D499692
SOLARTRON METROLOGY ISSUE 2 PCB 104270
TU954 Switch Phoenix Contact FL Switch MCS 14TX/2FX 2832713
LOT 3 MALLORY 600442-14A 3000MF 450V-DC TYPE CGS CAPACI
INTECOLOR E02038-20E CRT 20 IN DISPLAY D464304
AMAT 0150-03257 CABLE ASSY OPERATOR INTF 25 FT ENDURA PVD, 399795
2 new AMAT 0140-35604 harness assy, MWAVE TURNER 24V PWR, CENT
SMC NVV5J3-VIB980146 Pneumatic Manifold, 24-Station, AMAT 0190-09487, 329910
Warranty Allen Bradley Drive 1305 1305-BA04A-DE Ser A W/ Keypad Control
Shindengen Electric GY24010 GN 24VDC 10A Power Supply
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SICK UE410-8DI3 INTERFACE UNIT SAFETY ConTROL EXTEN
SIEMENS SYSTEME HELMHOLZ 700-443-0TP01 INAT S7-TCP/IP 200-8000-01
BRAD HARRISON 41078 MINI-CHANGE 3P FEMALE ST 20' 16-3 PVC AUTOMOTIVE CORD NEW!!
TB WOODS 5.8X5B SK QD BORE STEEL PULLEY V-BELT 5GRO
TIF IT990 ELECTRonIC INSULATION TESTER D521520
TAYLOR INSTRUMENT JS-342-B FULSCOPE REV 1 0-100 LEVEL TRANSMITTER D460662
MARTIN 3JEM QUADRA-FLEX COUPLING SLEEVE D508694
LOT 6 MORSE 184518 13IN TL FACING CUT-OFF WHEEL D27
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KU808 Siemens Siwarex KH 7MH4 322-1AZ00 + K1B Weighing System max. 2to
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ALLEN-BRADLEY 100-C12D*10 ConTACTOR 193-EA1EB RELAY
AMAT 0050-36475 Line, Main Overpressure, 415674
2 AMAT 0020-99048 Electrode E6
Pfeiffer TCP 380, PM C01 680, Turbo Pump Controller, 0606.800.1.01 Card, 329326
Warranty MITSUBISHI POWER SUPPLY COMMON ConVERTER MDS-A-CV-37
Kinetics Gas Line, USG Meter, Tescom 250
Meltric DSM 89-31043-172 Motor Controller/Switch & Branch Circuit Disconnect
MAN ROLAND B37U618170
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TECO WESTINGHOUSE AEHHUW HH0022 MAX-E2 2HP 460V 346
RED LION IMH43006 120/240V-AC 4-20MA DIGITAL DISPLAY PANEL CURRENT METER D514930
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