福建中立恒自动化设备有限公司

一、摘要 PLC是一种专门在工业环境下应用而设计的数字运算操作的电子装置。

它采用可以编制程序的存储器，用来在其内部存储执行逻辑运算、顺序运算、计时、计数和算术运算等操作的指令，并能通过数字式或模拟式的输入和输出，控制各种类型的机械或生产过程。PLC及其有关的外围设备都应按照易于与工业控制系统形成一个整体，易于扩展其功能的原则而设计。在工业生产的各个领域，机械加工企业为了提高生产效率，采用机械化流水作业的方式，对不同类型的零件分别组成的自动生产线。随着产品机型的更新换代，生产线承担的加工对象也随之改变，这就需要改变控制程序，使生产线的机械设备按新的工艺过程运行，而继电接触器控制器系统是采用固定接线，很难适应这个要求。大型自动生产线的控制系统使用的继电器数量很多，随着PLC的应用日益普及,其使用方法简单,便于掌握,且可靠性,抗干扰性很强,自身具有完善的功能.模块化的结构,使其在工业生产线上的应用越来越广泛。

　　发展趋势：1.向高速度、大容量方向发展

　　为了提高PLC的处理能力，要求PLC具有的响应速度和更大的存储容量。目前，有的PLC的扫描速度可达0.1ms/k步左右。PLC的扫描速度已成为很重要的一个性能指标。

　　在存储容量方面，有的PLC可达几十兆字节。为了扩大存储容量，有的公司已使用了磁泡存储器或硬盘。

　　2.向超大型、超小型两个方向发展

　　当前中小型PLC比较多，为了适应市场的多种需要，今后PLC要向多品种方向发展，特别是向超大型和超小型两个方向发展。现已有I/O点数达14336点的超大型PLC，其使用32位微处理器，多CPU并行工作和大容量存储器，功能强。

   BANNER 18-30V LED TOWER LIGHT INDICATOR TL50GYRQ 81861

  SEALMASTER FLANGE BEARING TFT-16TC-1

 HUBBELL 30A 600V INSULGRIP PIN  SLEEVE RECEPTACLE HBL430RS2W

   HOFFMAN SINGLE POINT LATCH KIT A-L3A

1     HOFFMAN SINGLE POINT LATCH KIT A-L3A

 OF 30   TB THOMAS AND BETTS 2" OCAL COUPLINGS CPL2-G CPL200

  REXROTH POWER SUPPLY MODULE 0-608-750-110-101 VM350

 7.5HP 12A 460V 2.5MH LINE REACTOR LRAC01202

   GEMS 120V RFS ROTORFLOW SENSOR 156266

  ABB HART 2600T PRESSURE TRANSMITTER 264BSFKB3AH

   HARMONIC DRIVE INFINIT-INDEXER COUPLING HDI-10 102055103

   TELEMECANIQUE SAFETY INTERLOCK KEY XCSZ03

   WERMA BASE MOT BRACKET 960-000-14

   SICK MOTING BRACKET BEF-WN-OBW

 IN BAG HUBBELL 3/4" 90 DEGREE CORD CONNECTOR NHC1037CR

   TUTCO 120V 200W 1/2" DIA X 5" CARTRIDGE HEATER CH69444

   EATON VICKERS CYLINDER SEAL KIT 6333U-024

 WATLOW 120V TEMPERATURE CONTROLLER CVBCKH00321500A

 WEIDMULLER 24V OPTO ISOLATOR 60986 EG01

  EFECTOR INDUCTIVE SENSOR IGA3005-BPKG/US-100-DPS-IG5554

   DODGE 4-BOLT FLANGE ROLLER BEARING 2-7/16" BORE F4B-E-207R

   ALEMITE FILTER ELEMENT 332964

   ASHCROFT 50-550 DEGREES 5" BIMETAL THERMOMETER 7QA-40689-015

   FLEXI METASTREAM POWERSTREAM INSERT 110195YE

  ALLEN-BRADLEY OUTPUT MODULE 1746-OW16

1    ALLEN-BRADLEY OUTPUT MODULE 1746-OW16

 SIEMENS SIMATIC S5 4x24V 2A DIGITAL OUTPUT MODULE 6ES5-440-8MA22

  SCHNEIDER ELECTRIC HARMONY 24V YELLOW STROBE BEACON XVB-L8B8

   NANMAC RTD TEMPERATURE PROBE ASSEMBLY CBL-1108X1

   PHILLIPS REFRIGERATION VALVE CARTRIDGE K210-9/64

 TURCK 10-65VDC INDUCTIVE PROXIMITY SENSOR NI30-Q130-VP4X2-B2141

  ALLEN-BRADLEY SER. C 30A 3-POLE CONTACTOR 100-C30J10 / 100-C30D*00C

   MAXITROL GF-80 1-1/4" NPT GAS FILTER PRESSURE REGULATOR HF2000

   WATLOW THERMOCOUPLE SENSOR RBHB0TA020AA050

 PRO-FACE TOUCH SCREEN INTERFACE PENDANT 3080028-03 GP2301H-LG41-24V

   RICE LAKE 10' 20AWG MATING CABLE ASSEMBLY SURVIVOR EL145HE

   PTI FILTER ELEMENT 6655568

   PHD 1-3/8" STROKE X 3/4" BORE PNEUMATIC CYLINDER AVCF3/4X13/8-DC

   SBG 1/4" 3/2 MANUAL VALVE 741532740

  GENUINE SKF BALL BEARING 3307 A/C3

   GE 1050RPM 1/8HP ELECTRIC MOTOR 2914AT

 OF 6  POWEREX PRX 100A TRANSISTOR POWER MODULES N55AB1 / KD421K10

   WATTS TOTAL RELIEF VALVE KIT RK-009M2-VT-3/4

   BANNER MULTI-BEAM PHOTOELECTRIC SCANNER BLOCK 17627

 DETROIT COIL COMPANY 115V COIL 9-174

   BALLUFF 10-30V PROXIMITY SWITCH BES-516-356-SA17-S4

  TIMKEN BALL BEARING INSERT RAL012NPP

 TRI-TRONICS 6FT 5-WIRE QUICK DISCONNECT CORDSET GSEC-6

   PARKER MIDWEST AIR PART AIR FILTER ELEMENT MW150-19-DX

   HAYWARD 6" BALL VALVE PVC EPDM NSF/ANSI61

   HONEYWELL MICRO-SWITCH LIMIT SWITCH BLOCK 1ZD1

    SWAGELOK 1/8" TUBE X 1/8" NPT MALE ADAPTERS SS-200-1-2

1      SWAGELOK 1/8" TUBE X 1/8" NPT MALE ADAPTERS SS-200-1-2

    ABB 3P 125-VDC CONTACTOR AE50-30-11-87 / 28786

  LUMAPRO 120/277V GREEN LED ALUMINUM EXIT SIGN 6CGL9

  ROSS 100/120V 48 VDC COIL SOLENOID VALVE W7076A2332

REPAIRED   BEI ENCODER E25BB-6R-1024-ABZC-8830-LED-SC36-S 924-01029-335

   REXNORD DPK ST 375 ST 510851

  GE GENERAL ELECTRIC 10A 600V 1" STROKE PULL SOLENOID CR9500A101A2A

 SIEMENS CIRCUIT BREAKER SWITCH GEAR CONTACT FINGER CLUSTER 18657456579

   INGERSOLL-RAND ARO 1" STROKE PNEUMATIC CYLINDER 03152-010

 ELEKTRIM .55kW 3PH 2790/335RPM 2.55/1.5A DUAL SHAFT MOTOR VDE-0530

   HONEYWELL PROXIMITY SWITCH 972AB3XP-A3N-L

 MILLER MAIN SILICON CONTROLLED RECTIFIER 192071 FOR 302/452/652 DELTAWELD

   BANNER 4-WIRE JUMPER FOR D/O

   LEGEND VALVE TRUE ION BALL VALVE T/S-603

   INGERSOLL RAND DRESSER PUMP SEAL HEAD 60954765

FOR PARTS GENERAL ELECTRIC MOTOR 485MA MANAGEMENT RELAY 369-HI-R-0-0-E-0-E

   REXROTH 10-450 BAR PRESSURE TRANSMITTER HM 14-10/450 R900021315

   TRI-CLOVER FEMALE 9-PIN CONNECTOR CABLE EL-97515-0067

 COHERENT GENERAL CIRCUIT BOARD 0502-729-02

   HONEYWELL YAMATAKE 30V PHOTOELECTRIC SENSOR HPAR21/HPAE21 HPA-T21

 SIEMENS MECHANICAL INTERLOCK 3TX4091-1A

   FISHER PRESSURE REDUCING REGULATOR 95-H-13

   SMC 24V 3-PORT SOLENOID VALVE VQZ332-5YZ1-N11T-F

   HUMPHREY 120V 0-125 PSI 1/4" SOLENOID VALVE 062E1-3-11-20-36-120V

   AUTOMATIONDIRECT FUJI 6A 250V RELAY TIMER SOCKET TP411SBA

   BANNER 24V FIBER OPTIC PHOTOELECTRIC SENSOR D10DPFPQ

   DODGE 1" BORE 4 BOLT FLANGE BEARING IT F4B-SC-100

   HONEYWELL MICRO-SWITCH 48V PROXIMITY SWITCH 972CP15TM-A13N-L

   MESTO 1" BALL VALVE SERVICE KIT RKN109TT

   PHD CYLINDER 09618211-01 AVK-1-3/8X2-M-P

   BENTLY NEVADA 3300 XL 8MM PROXIMITY SENSOR 330106-05-30-10-02-05

   NTN  BEARING 6007LLUC3 6007LLUC3/2AS

   GEMS VARIABLE SENSITIVITY OPTION BOARD 16Z1VG

   ALLEN-BRADLEY AC VFD DRIVE 1336F-B030-AN-EN-HASP-LA2-LA3-L6-MX3

   ACE CONTROLS ADJUSTABLE SHOCK ABSORBER AHS-3/4X2-R

   EATON CUTLER-HAMMER SER.A1 2-DUAL CIRCUIT CONTACT BLOCKS E22B22

  EATON 30A 3-POLE CIRCUIT BREAKER WMZS3D30

   GENERAL ELECTRIC PCB OD BOARD IC3600SBMB1D1D IC3600SBMB1

   WOODHEAD 20A 250V WATER-TIGHT CONNECTION 27W07BLK

   PMC 0-30# 24VDC 4-20MA PRESSURE TRANSMITTER N-HC

 GENERAL ELECTRIC CIRCUIT BOARD 531X132APGABG1

   ANDERSON POWER PROD 175A 600V 2-POLE POWER CONNECTOR SB-175A-600V

   WOODHEAD 4P FEM STRAIGHT MICRO-CHANGE RECEPTACLE 8R4A00A18M020

  GENUINE SKF ANGULAR CONTACT BALL BEARING 7313-BECBY

   MILTON ROY LIQUIFRAM SUC LE-76/86 VALVE 25662

   SEALMASTER 3/8" FEMALE ROD END CFF-6N

   FEDERAL PACIFIC 3HP 30A 240V 2-POLE FUSE HER C30-2

   GENERAL BEARING CORPORATION DEEP GROOVE BALL BEARING S8604-88-30

  GENUINE SKF SPHERICAL ROLLER BEARING 22210-CCK/WW3

   PAPER MACHINE CORP HAVAR DIAPHRAGM TYPE PT-20-N-HA-S

 LINK ELECTRIC BRAKE MONITOR 501-5

   LENZE GEARMOTOR GST04-2M VBR 071C32

   BANNER 24V SAFETY RELAY ES-FL-2A 46092

 HUBBELL 50A 250V 3-POLE 4-WIRE TWIST-LOCK CONNECTOR CS-8365C

  HUBBELL 50A 250V 3-POLE 4-WIRE TWIST-LOCK CONNECTOR CS-8365C

   SCHMERSAL SAFTEY INTERLOCK SWITCH 1166285 AZM-161SK-12/12RKA-024

   ALLEN-BRADLEY MOTOR ENCODER FEEDBACK CABLE 2090-XXNPMP-14S15

 IN BAG FALK METRIC HARDWARE FASTENER KIT 1120-1130-1140 T 10 / B/M 776221

  RELIANCE ELECTRIC 500W 4Ω 4OHMS RESISTOR 63481-17D

 MAC 120V 3-WAY SOLENOID VALVE 224B-111NCAA

   SQUARE D 5.86-6.41A OVERLOAD RELAY THERMAL IT A8.38

   BROWNING 1" SHAFT X 3-1/4" OD SHEAVE AK32X1/2

 PROMINENT METERING DOSING PUMP GALA1000PVT200UD112100 2711007857

   MCGILL CAM FOLLOWER CFE-5/8-SB

 ALLEN-BRADLEY SER. B CONTROLLOGIX 5561 PROCESSOR 1756-L61

  ALLEN-BRADLEY SER. B CONTROLLOGIX 5561 PROCESSOR 1756-L61

   IFM EFECTOR 10M 300V M12 CABLE ASSEMBLY ADOAH040VAS0010E04-E18018

   PMC 0-30PSI G 4-20MA 24VDC PRESSURE TRANSMITTER PTEL-HC-CV/P

    CKD AIR CYLINDER BRACKET NUT/WASHER KITS M1-00-20

   BANNER 30V VALUE-BEAM PHOTOELECTRIC SENSOR SM912DQD 25361

   TB WOOD'S DETACHABLE V-BELT PULLEY 5V12.5X2-SF

  GE FANUC VERSAMAX MICRO PLC CONTROLLER IC200UDD110-DK

SET OF 3    STAR CNC MILLING MACHINE GEARS 169.3.0048.0

   AIR MONITOR CORPORATION LOW PRESSURE REFERENCE MODULE

 BAILEY NETWORK 90 LOOP INTERFACE MODULE NLIM02

   MICRO-SWITCH 20A 480V SPST N.O. LIMIT SWITCH YA-2RB-D504

  MAC SOLENOID VALVE 45A-MAJ-DDAJ-2KE

  SCHNEIDER ELECTRIC 1A CIRCUIT BREAKER 60235

   TELEMECANIQUE 9A 3-N.O. 120V COIL CONTACTOR LC1D093FA60

  ALLEN-BRADLEY GUARDMASTER SAFETY LIGHT CURTAIN T4A3400YD