福建中立恒自动化设备有限公司

目前，世界上有200多个厂家生产可编程序控制器产品，厂家有德国的西门子，美国的Rockwell(AB)、通用(GE),日本的三菱、欧姆龙，法国的施耐德等。

可编程序控制器总的发展趋势是向高集成度、小体积、大容量、高速度、易使用、高性能方向发展。具体表现在以下几个方面：

(1)向小型化、专用化、低成本方向发展

20世纪80年代初，小型PLC在价格上还高于小系统用的继电器控制装置。随着微电子技术的发展，新型器件大幅度的提高功能和降低价格，使PLC结构更为紧凑，功能不断增加，将原来大、中型PLC才有的功能移植到小型PLC上，如模拟量处理、数据通讯和复杂的功能指令等，但价格不断下降，真正成为继电器控制系统的替代产品。

(2)向大容量，高速度方向发展

大型PLC采用多微处理器系统，有的采用32位微处理器，可同时进行多任务操作，处理速度提高，特别是增强了过程控制和数据处理的功能。另外，存储容量大大增加。

(3)与计算机联系密切

从功能上看，PLC不仅能完成逻辑运算，且计算机的复杂运算功能在PLC中也进一步得到利用，从结构上看，计算机的硬件和技术越来越多地应用到PLC；从语言上看，PLC己不再是单纯用梯形图语言，而且可用多种语言编程，如类似计算机汇编语言的语句表，甚至可直接由计算机语言编程；在通讯方面，PLC与计算机可直接相连并进行信息传递。

(4)发展多样化

可编程序控制器发展的多样化体现在3个方面：产品类型、编程语言和应用领域。

(5)模块化

PLC的扩展模块发展迅速。功能明确化、专用化的复杂功能由专门模块来完成。主机仅仅通过通讯设备向模块发布命令和测试状态，这使得PLC的系统功能进一步增强，控制系统设计进一步简化。

(6)网络与通讯能力增强

计算机与PLC之间以及各个PLC之间的联网和通讯的能力不断增强，使用工业网络可以有效地节省资源、降低成本、提高系统可靠性和灵活性，致使网络的应用有普遍化的趋势。

(7)多样化与标准化

生产PLC产品的各厂家都在大力度地开发自己的新产品，以求占据市场的更大份额。因此产品向多样化方向发展，出现了欧、美、日多种流派。与此同时，为了推动技术标准化的进程。一些国际性组织，如国际电工委员会(IEC)不断为PLC的发展制定一些新的标准，如对各种类型的产品作一定的归纳或定义，或对PLC未来的发展制定一种方向或框架。

(8)工业软件发展迅速

与可编程序控制器硬件技术的发展相适应，工业软件的发展非常迅速，它使系统应用更加简单易行，大大方便了PLC系统的开发人员和操作使用人员。

可编程序控制器的输出信号类型可以是开关量、模拟量和数字量。输出单元从广义上分包含两部分：一是与被控设备相连接的接口电路，另一部分是输出的映像寄存器。

PLC运行时CPU从输入映像寄存器读取输入信息并进行处理，将处理结果放到输出映像寄存器。输出映像寄存器由输出点相对应的触发器组成，输出接口电路将其由弱电控制信号转换成现场需要的强电信号输出，以驱动电磁阀、接触器、指示灯等被控设备的执行元件。

  CUTLER-HAMMER 200A 690V MED CASE CIRCUIT BREAKER HKW4200V

 COMMUTATOR 611952-51H 7B611952-51H

   HONEYWELL 29V 500 PSI 1/8" XPRO PRESSURE TRANSMITTER 9307206

  CLECO ISOLATION TRANSFORMER MPRO400IT 544185PT

   EATON VICKERS HYDRAULIC PUMP 572082-2 2520VQ14A11

     REXNORD CARTRIDGE ROLLER BEARING CSEB22563E

 HONEYWELL FLAME CONTROLLER RM7800-L-1053 W/ S7800A-1001 R7847-B-1072

 HONEYWELL FLAME CONTROLLER RM7800-L-1053 W/ S7800A-1001 R7849-B-1021

 HONEYWELL FLAME CONTROLLER RM7800-L-1053 W/ S7800A-1001 R7847-A-1074

 1HP 1745RPM SUPER-E WASHDOWN MOTOR CEWDBM3546 W/ 76BK2400BQF

  ZIEHL-ABEGG 2830/3400RPM 400/480V ROTOR MOTOR MK137-2DK.07.N

 CUTLER-HAMMER 3-POLE 600A CIRCUIT BREAKER HLDB3600FT33W W/ 6LES500T

   VICKERS HYDRAULIC PUMP PVB15LSY40C11

   VICKERS HYDRAULIC PUMP PVB15-RSY-40-CE-11

 PROMESS 3-PHASE 2500RPM 4.27 KW SERVO MOTOR AKM64K-ANANR-70

  NEXEN PNEUMATIC CLUTCH BRAKE 912739

  SUPERIOR ELECTRIC SLO-SYN SYNCHRONOUS MOTOR SS700-G4

   GENERAL ELECTRIC MEMORY EXPANDER PC BOARD DS3800HXPA1F1H

   VICKERS HYDRAULIC PUMP PVB15-RS-31-C-11

   VICKERS HYDRAULIC PUMP PVB15-LS-31-C11

NOS MORSE 18GSA-56C-100 RATIO 10 1.42HP 1750 RPM GEAR REDUCER H00MJ0354

 WESTINGHOUSE 600A 3-POLE CIRCUIT BREAKER HLDB3600FT33W W/ 6LES600T

   EATON DURANT 120V PROCESS CONTROL COTER 55100-450

   HONEYWELL MEASUREX 115/230VAC POWER SUPPLY 08622000

  ALLEN-BRADLEY POWERFLEX 700 5HP AC DRIVE 20BD8P0A3AYNAND1

 EMERSON CONTROL TECHNIQUES 15KW IDRIVE AC DRIVE SP2404

  SIEMENS SIMOVERT MC DC INVERTER 6SE7021-0TA51-Z

   DESTACO CAMCO TORQUE 400 TORQ/GARD OVERLOAD CLUTCH RTL20

   MEROBEL THROUGH SHAFT CLUTCH EAT-350

  YASKAWA SERVOPACK SERVO DRIVE SGDV-3R5D01A002000

  ALLEN-BRADLEY POWERFLEX 70 20HP AC DRIVE 20AD027A3AYYANNN

  FALK STEELFLEX GRID COUPLING 1140T 0758257

 OILGEAR PISTON PUMP PVWJ-046-A1UV-LSAY-P-LNNNN

FOR PARTS OR REPAIR DYNAPAR ROTOPULSER ENCODER 62-PMDF-0600-AB

  ANDERSON DIFFERENTIAL PRESSURE INDICATOR GB1070G101123 PM01GB050

    SIEMENS SERVO MOTOR 1FT6041-4AF71-4EH1

FOR PARTS OR REPAIR ALLEN-BRADLEY SER. C FRN. 4.46 PANELVIEW 1000 2711-K10G3X

 GE FANUC OPERATOR INTERFACE PANEL IC754VSL12CTD-DA

   DELTAMAX 11.4/5.7A 220/200VAC SERVO DRIVE DMAX-17.5/RA

  HUBBELL KILLARK 18000 LUMEN VM4 LED LIGHTING FIXTURE VM4LB1830

   ALLEN-BRADLEY POWERFLEX 700 AC DRIVE 20BE3P9A0AYNAND0

   BROWNING 2-ROW SPROCKET D100R35

   ASTROSYSTEMS SERVO CONTROL POSITION SYNCHRONIZER AP52-3-1-1

  HUBBELL 60A 7.5HP CIRCUIT-LOCK MECHANICAL INTERLOCK HBL360MI6W

   HONEYWELL MOTHERBOARD CONTROL BOARD 51401052-100

  GE GENERAL ELECTRIC TURBINE POWER SUPPLY BOARD DS200EXPSG1A-CB

 ALLEN-BRADLEY POWERFLEX 700 5.5KW 7.5HP AC DRIVE 20BD011A0AYNAND0

  RELIANCE ELECTRIC RECTIFIER STACK 0-864660-59S

  EATON CUTLER-HAMMER PHOTOELECTRIC SENSOR 8171B-6501

 ALLEN-BRADLEY PANELVIEW PLUS 7 TOUCHSCREEN MODULE 2711P-T9W22D8S

 ALLEN-BRADLEY PANELVIEW PLUS 7 TOUCHSCREEN MODULE 2711P-T12W22D8S

 HONEYWELL MEASUREX PIDP PC BOARD 09437702

NOS IN   KEYENCE CV-X100RP CAMERA SENSOR / IMAGE CONTROLLER

 SAFELINE METAL DETECTION OPERATOR INTERFACE HEAD IT 4500-V1

FACTORY  ROSEMOT 1055 DUAL PH/ORP ANALYZER 1055-01-11-22-32F REV. N

 GE FANUC 12" OPERATOR INTERFACE PANEL IC754VSL12CTD-HJ

   HYDAC STAINLESS STEEL PRESSURE SENSOR EVS-3110 311C-A-0600-000

 ABB POWER INTERFACE BOARD FOR DCS500 SDCS-PIN-11

   IN BAG ABB ACCURAY PROCESS INTERFACE CIRCUIT BOARD 064844-005

 PROSOFT PROFIBUS MASTER DPV1 COMMICATIONS MODULE MVI69-PDPMV1

 FACTORY  ALLEN-BRADLEY CURRENT TRANSDUCER  1336-CT-SP2A

 FACTORY  COGNEX FRAME GRABBER CARD 801-8130-01 VPM-8120X-5061-P

  THAYER SCALES SUB ASSEMBILY MODULE 51932-2

 GE GENERAL ELECTRIC POWER AMPLIFIER 193X712AEG03

   ALLEN-BRADLEY SER. F 50-1000RPM SPEED SWITCH 808-M3

   ALLEN-BRADLEY CONFIGURABGLE NAT ROUTER  1783-NATR

 FACTORY  ALLEN-BRADLEY FLEX ETHERNET/IP ADAPTOR  FW4.3 1794-AENT

  FACTORY  ALLEN-BRADLEY FLEX ETHERNET/IP ADAPTOR  FW4.3 1794-AENT

MANUFACTURER  ABB 48VDC K-LINE CONTROL RELAY ASSEMBLY 708392-T6

   ABB DATA HIGHWAY COMMICATION BOARD UCA86-D2 581713B7

 NORDSON INTERFACE CONTROL BOARD 222307J

   GENERAL ELECTRIC CONTROL MODULE IC3606ATCB1A1B

FACTORY  ALLEN-BRADLEY FLEX 8 THERMOCOUPLE INPUT MODULE 2019 1794-IT8

  SIEMENS 80A 757/673V BRAKING IT 6SE7031-6EB87-2DA1

 INTEGRATION TECHNOLOGY HIGH INTENSITY UV CURING LAMP SUBZERO-055

  FIRESTAIR SPRING INDUSTRIAL BELLOWS ACTUATOR W01-358-7737

 ALLEN-BRADLEY SER. C 1336 PLUS II AC DRIVE 1336S-A010-AN-EN-HA1-L6

   SKF SPHERICAL ROLLER BEARING 22326-CC/W33

   WARNER ELECTRIC ARMATURE ARM W/ ADAPTER 5324-111-001

 PROMINENT MOTOR DRIVEN METERING PUMP S1CBH07065PVTS070UD010S1EN

  AUTOMATION DIRECT DURA PULSE 15HP AC DRIVE GS3-4015

  REXNORD COUPLING PARTS KIT SR71-8 425 STL PART# 587621

   EATON DYNAMATIC AF 5000 BASE DRIVE BOARD 15-867-5

  PARKER SCHRADER BELLOWS MILTIPURPOSE VALVE 316060110

  FANUC MOTHER BOARD A20B-8100-0130/12E

   SEM HIGH DYNAMIC SERVO MOTOR HD142C6-44S

  ABB COMMANDER 1900 CHART RECORDER 1911JA001100000STD

  GENUINE SKF BEARING NA-4840

 IN PACKAGE GE GENERAL ELECTRIC PANELBOARD HARDWARE MOTING KIT THFP65SPK

 HONEYWELL DR4500 CHART RECORDER DR45AT-1111-00-000-0-3M0000-0

  NSK SUPER PRECISION BEARING SET R MTSX5 90BNR10HTV1VDUE-01

   ALLEN-BRADLEY MOTOR CONTROLLER 150-A24NBD

   GATES PLY CHAIN GT BELT 14M-4410-90

 KOLLMORGEN SERVOSTAR CD SERVO DRIVE PRD-B040SAIZ-A3

  GARLOCK 5000 10LBS 3/4" 19.05MM COMPRESSION PACKING 41801-3048

  TIMKEN SPHERICAL ROLLER BEARING 23228EMW33

 AUTOMATION DIRECT TOUCHSCREEN PANEL EA9-T12CL 13Y21B045

   PARKER BRUSHLESS SERVO MOTOR SM232AL-NMSN 100701N0014

   SIMCO ION ITW PINNER ARC RESISTANT CHARGING BAR

 FACTORY  FANUC PCB-F15M/T BOARD A16B-2202-0571

FACTORY  HONEYWELL LOW LEVEL ANALOG MODULE MU-TAMT02 REV.G/E 51401491-100

 CLECO 135 RPM CORDED ELECTRIC RIGHT ANGLE NUTRNER 67EA235AL6

   WPC CCR LCD DVR MODULE 805-804-00

NOS FESTO PNEUMATIC LINEAR ACTUATOR 175136 DGPL-40-270-PPV-A-B-GF-GK-SH

   BOSTON GEAR 60:1 SPEED REDUCER F726-60-B5-J

 1.0A 50V PERMANENT MAGNET TACH GENERATOR P601A168

   ALLEN-BRADLEY LCD DISPLAY OPERATOR INTERFACE 2707-L40P1

 MEASUREX PC GRAPHICS PROCESSOR BOARD 053276-05 REV. AC1

  ALLEN-BRADLEY CURRENT TRANSDUCER  1336-CT-SP2A

  SIEMENS ALLIS 1000V 1250A 74VDC COIL CONTACTOR 14-193-100-562

  PRECISION DIGITAL PROTEX-MAX TEMP METER PD8-765-6X5-10

FACTORY  NORDSON BLUE SERIES G SINGLE MODULE KBCGS

  ALLEN-BRADLEY GUARDLOGIX 5580 PARTNER CONTROLLER 1756-L8SP

REBUILT HONEYWELL PRIMARY BURNER CONTROL R4795A1016

 GE FANUC QUICKPANEL OPERATOR INTERFACE IC754VSI06MTD-GF

  FABIO PERINI RO PC BOARD CS94278A AS5024.001 51291534

   BAYSIDE PRECISION GEARHEAD (NO PINION GEAR) NR42S-010

  YASKAWA 40HP P1000 AC DRIVE CIMR-PU4A0058FAA

 BENTLY NEVADA 3300 XL 5/8MM PROXIMITY SENSOR 330180-X1-05

FACTORY  ALLEN-BRADLEY COMPACT LOGIX 5000 DC INPUT MODULE 5069-IB16

  ALLEN-BRADLEY FLEX 8 THERMOCOUPLE INPUT MODULE 1794-IT8

   GE GENERAL ELECTRIC INDUSTRIAL SOLENOID COIL CR9503211EAB271

  ALLEN-BRADLEY AC DRIVE 1336-B007-EAD-L1-S1

 WESTINGHOUSE SIZE 6 600A 400HP MAGNETIC CONTACTOR GCA-630

   MEASUREX CONTROL BOARD 08518100 053450-00

   GENERAL ELECTRIC OVERSPEED SENSOR BOARD IC3600Q0XC1

   GENERAL ELECTRIC VOLTS /HZ TRIP OUTPUT MODULE 44C372638-G01

 PARKER 4200RPM 3.3HP REV.A SERVO MOTOR MPM1142C-116003

  ROSEMOT PRESSURE TRANSMITTER 300S1AAE5M5

  ALLEN-BRADLEY 7.5HP VFD DRIVE 1336F-BRF75-AA-EN-HCS2-LA6-L6

   SIEMENS SERVO MOTOR 1FT3074-5AZ21-9-Z

   HORTON SPRING LOADED BRAKE 822496