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。

1     MARTIN 1" SHAFT SPROCKET 50BS15-1

   GENERAL ELECTRIC GE SOLENOID COIL 22D148-G2

   MANVILLE CLIPPER 5-1/2" OIL SEAL 0550-10746-PD

   BORG WARNER 207882DH-D S67429 A1932 P58605

 ALLEN-BRADLEY DC DRIVE FIELD PULSE BOARD 1395-170131 SP-170131

   FLOTECT FLOW SWITCH V6EPSSSLF

   UFM IVERSAL FLOW MONITORS FLOW METER SN-BSB7GMV-4-259V.9-A1NR

 OF (10)    ACCUSHIM 0.025" STAINLESS SLOTTED SHIM A-025

   AUTOMATION DIRECT 3M 15PIN TO R12 CONNECT SHIELDED CABLE EZ-2CBL

   USSE 45 DEGREE 9/16-18 CONNECTOR W O-RING 6702

   DANFOSS VLT 2010 PACK AC DRIVE 195H4101 W/ MOTOR FILTER 195H6523

   TURCK 30V INDUCTIVE PROXIMITY SWITCH NI25U-CK40-AP6X2-B1141

FOR PARTS OR REPAIR SIEMENS SIMODRIVE POWER SUPPLY BOARD 6SC6100-0GA12

   DAYTON 480V 40A 3-32VDC SOLID STATE RELAY 5Z979

 THOR TECHNOLOGIES CIRCUIT BOARD 1700-99-00112

 MD ELECTRONIC CIRCUIT BOARD MD2080 P78-466-003-P

   VEEDER-ROOT 10-32V HOUR METER 779555-216

   PARKER PNEUMATIC 5" BORE 3" STROKE CYLINDER 05.00-BB2AU19A-4.000

  IFM EFECTOR INDUCTIVE SENSOR IG5764 IGA2008-FRKG/V4A

   ARTISAN 115V 1-10 SEC TIME DELAY MODULE ATCD0-115-2

  LINEMASTER FOOT PEDAL 522-P26

   TURCK 20-250V CYLINDER POSITION SENSOR BIM-A23-AZ3X-B1131/S34

 ALLEN-BRADLEY LOGIX PAC CONTROLLOGIX PROCESSOR MODULE 1756-L61 B

  ALLEN-BRADLEY LOGIX PAC CONTROLLOGIX PROCESSOR MODULE 1756-L61 B

O TERMINAL BLOCKS D4-2

 KOB 9-48V 3" PROBE TEMPERATURE TRANSMITTER TST XMITTER

   SKF 1" ID X 2-3/8" OD X 1" WIDE BALL BEARING 5308

 VIBCO SILENT TURBINE VIBRATOR BBS130

   WESTINGHOUSE CIRCUIT BOARD 7381A01

  EXTECH PHASE SEQUENCE AND MOTOR ROTATION TESTER 480403

REPAIRED DRESONSCLIDATED 3/4" RELIEF VALVE 1990C-T-XSA1

  GARLOCK 5000 5LBS 3/4" 19.1MM COMPRESSION PACKING 41801-2048

 DWYER 0-10 IN PRESSURE TRANSMITTER 604-2

   AIRPAX 6-POLE 25 AMP CIRCUIT BREAKER HH83XE625-B

   LINDE DOOR HINGE PLATE ST731466

 FANUC SERVO AMPLIFIER BOARD A20B-0009-0320/19E

   FISHER ROSEMOT 3000PSI SMART TRANSMITTER 1151-GP9S22-B1

   MARTIN SINGLE GROOVE PULLEY SHEAVE 1-B-52-SDS

   CONVAL .5" SOCKET WELD THROTTLE VALVE .050 12G2J-F223D-STK2

  DYNAPAR PULSE WHEEL RIMT03-512

 SIEMENS 1200V 50A IGBT POWER MODULE BSM50GB120D

  ALLEN-BRADLEY REDDANT POWER SUPPLY CABLE 1756-CPR SER. A CAT B01

   ATLAS COPCO THROTTLE VALVE SERVICE KIT 2906-0168-00

   NB LINEAR 3/4" ID SLIDE IT PILLOW BLOCK TWA -12UU

  SIEMENS 20A 480V CIRCUIT BREAKER 5SY43-MCB-D20 5SY4320-8

 FESTO BUS NODE W/ 4 PIN TERMINAL BLOCK CPX-FB33 / CPX-GE-EV-S-7/8-4POL

 WESTINGHOUSE 125/250VAC GRODGARD RELAY 3512C12H01

 ABSOLUTE PROCESS 120VAC 4-20 MA IN 4-20MA OUT RELAY API-4300-G

  HYDE-PARK 12-24V PROXIMITY SENSOR SC650A-B00S

   HITACHI TURBINE POWER SUPPLY MODULE MPD300A / X707639

   NVC 3/4" CF8M-200 GATE VALVE 4045

   DUFF-NORTON WORM GEAR ACTUATOR 8637263 M1802/M1801

LOT OF (3)    PARKER SS 5/8" TUBE TEE FITTINGS

   SQUARE D 600V 3-CKT TERMINAL BLOCK 9080-T-3

 WESTINGHOUSE TYPE DC DISCONNECT SIWTCH DS46U

   GENERAL ELECTRIC .55-OHM RESISTOR IC9033C4C3

   PAPER CONVERTING MACHINE 2" BORE 6" OD CUTOFF BLADE 348868.192.1

   BIMBA 1/2" STROKE PNEUMATIC CYLINDER SR-090.5-D-V

  PARKER DIRCTIONAL CONTROL VALVE D61VW001C4NYGF3S

   CAMLOC GAS SPRING DISTRIBUTOR BS8100139S8VVVD-105433-33/96

   GRACO PUMP REPAIR KIT 948147

 CR MAGNETICS 0-10A CURRENT TRANSMITTER CR4320-10

 ROCHESTER INSTRUMENTS ANNCIATOR BOARD PCB AN082CGY 1014-326

   GRAYHILL OPERATOR KEYPAD INTERFACE 98YY5150-1 98AD5001-1

   EATON CUTLER-HAMMER 150A FUSE REFILL KIT 8RBT4-150E / 5982C49A16

   ABB DATA RECORDER TERMINAL STRIP C1900/0303/0300

 OF (3)   GE OVERLOAD THERMAL IT HEATING ELEMENTS 81D-593

INCOMPLETE ALLEN-BRADLEY SER. A 40MM RED PUSH/PULL BUTTON 800FM-MT44MX11S

  SKINNER 120V 50-PSI 11-W SOLENOID VALVE V5D11320CT

  MAC 24VDC SOLENOID VALVE 252B-521JC

   MAC 120 PSI SLOTTED STEM VALVE 35A-00L

   ASCO 120V SOLENOID COIL 27-502-24-D

  ENGLER LIQUID LEVEL SWITCH ANM-23.450.2.5

   SEALMASTER 1/2" BEARING INSERT 2-08

   ARO 1-1/8" BORE X 1" STROKE PNEUMATIC CYLINDER 2318-1089-010

   HAGAN ROSEMOT 5X20 POSITIONER VALVE REBUILD KIT 1A97808G01

   HONEYWELL MICRO-SWITCH ACTUATOR SWITCH LEVER 6PA71

 JOHNSON CONTROLS 40-120*F TEMPERATURE CONTROL A28MA-2

  ALLEN-BRADLEY 15A 1-POLE CIRCUIT BREAKER 1492-SPM1B150

   PARKER 24V 11W 1/8" SOLENOID VALVE G51090149

 BRADY BP T300 BP-T300 PRINTER GEARS

1   BRADY BP T300 BP-T300 PRINTER GEARS

 MAXI-TORQ 1/20HP 27.2/32.7RPM PERMANENT SPLIT CAPACITOR GEARMOTOR 1L523

  SIEMENS 800A SPLICE KIT D648657

   WEISS TEMPCO -20 TO 100 F 10' THERMOCOUPLE PROBE AND GAUGE 35RB3

   FESTO SOLENOID VALVE JMVH-5-1/8-B

   PMC 24VDC PRESSURE TRANSMITTER PTEL-HA-CV/P

  SANDPIPER 125 PSI 8.6 BAR DIAPHRAGM PUMP S05B1ABWANS000

   BODINE 130V 1/17HP MOTOR 24A4BEPM-3F

   PHD 5 METER 2-PIN CORDSET 61398-05

   MARKEM-IMAJE ENCODER PRODUCTS ENCODER KIT REV. AC # 10012148

   DAISY DATA 22.0" COLOR LCD TOUCHSCREEN DISPLAY I649-100171

   NUMATICS 120V 4-WAY 2-POS 1/8" SOLENOID VALVE L11BA4520000030

NOS REXROTH 1-1/2" BORE 1/2" ROD DIA SPRING RETURN CYLINDERS AP261216-D

 BENTLY NEVADA TACHOMETER MONITOR 3300/50-02-02-00-00

LOT OF (3)  TEXAS INSTRUMENTS COMMICATION MODULES 500-2109

   BANNER RED RING LIGHT IVU PLUS IMAGE SENSOR IVUPTGR25 16447

 KEP 24V 8 DIGIT MK SERIES COTER 54MM X 40MM MK18.10.24VDC/25CPS

 THERMO FIISHER SCIENTIFIC REV. G MOTHERBOARD 9826-64P325

   GE GENERAL ELECTRIC 120V 16PT INPUT MODULE IC693MDL240G

 CONTROL TECHNIQUES PANEL KEYPAD 7004-0170 / 694225-300

 GE FANUC VERSAMAX 24V POWER SUPPLY MODULE IC200PWR002D

   ABB CIRCUIT CARD 58094498-DB-900620

 BBC BROWN BOVERI CONTACTOR SLA-32-B-201

   HWR HOSE KIT HWR802 H010558

   3D ACCU-DRIVE 2-1/2" 0-30 PSI 1/4" NPT PRESSUSRE GAUGE 25502-21B1

 MAC 24V 1/4" PORTS 4-WAY SOLENOID VALVE 6211C-111-PM-591DA

   GENERIC CONTROL I/O BOARD B0043900-A1

   SMC REGULARTOR AR30-02

   DANAHER MOTION KISTLER MORSE CIRCUIT BOARD REV.K 63-1230-13

   ASCO NUMATICS 5-120V REED SWITCH SR6-004

   SCHMERSAL 24-230V NO/NC SAFAETY SWITCH T4C-236-11Z-M20

   GOULDS PUMPS CARBON BABBITT SUCTION BEARING B7136

   APPLETON 2" CONDUIT BODY X67 FM-7

   FAIRCHILD 500 PSI PRECISION PRESSURE REGULATOR 10242R

   NNB CD CONTROL BOARD 4865-087

   TURCK 3-PIN FEMALE CORDSET 3T-2-SB

  ALLEN-BRADLEY DISCONNECT SWITCH 1494V-DS30 SER D

 ALLEN-BRADLEY 16A MOTOR STARTER/CIRCUIT PROTECTOR 140M-D8N-C16

 ROSEMOT EMERSON MODEL 56 DUAL CHANNEL TRANSMITTER 56-03-21-31-HT

   ABB TWISTED PAIR TO OPTO REPEATER 3BSE013281R1 / TC514V2

   ASCO 110/120V SOLENOID VALVE COIL 238414-032D MP-C-090

 MIL-SPEC HONEYWELL RADIO COIL 5950-00-232-2468 3187794

   ABB COMMANDER 300 CONTROLLER C300/0010/STD

   INA INSERT BEARING RAE30-NPP-B

 TELEMECANIQUE 240V 7W RED STACK LIGHT XVA-LC3-R

  REGAL BELOIT ALLING-LANDER GEAR REDUCER 5:1 4.4HP 3225-TF-1

LOT OF 99    CLASS C 1/4" 18-8 SS #10-32 MACHINE SCREWS 86AH10X1/4

 OF 3    MITSUBISHI / PRX IGBT MODULES CM300DX-24S

LOT OF (2)    TORRINGTON CAM FOLLOWERS CF-1/2N-S

   GE GENERAL ELECTRIC 120V 75-600W ROTARY DIMMER DIU-61

   FAFNIR 2 BOLT FLANGE BEARING FLCT-1-1/4