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。

Niko 10-801 Access Control

ABB UD/S 2.300.2 iversal Dim Actuator 2CDG 110 074 R0011

Schneider Electric BMXDDM3202K

HONEYWELL VC7931/VC7931ZZ11T MODULATING VC VALVE ACTUATOR W/ CABLE

FLINTEC MCS-08AD ANALOG DIGITIZER M0010844

Hitachi 232CDIST PN 738-5006 BOARD

KONGSBERG RMC-ST Switch 321520

CEAG 400 71 343 723/ 400 32 042 364 A

EATON C445BA-SDNM C445 BASE CONTROL MODULE,120/240VAC

SCHMALZ IO-Link SXMPi 25 IMP Q M12-8

Helmholz 700-972-2AA02 Flextra Twin Repeater

BECKHOFF BC8000 MODULE

Schneider Electric 33065 short-circuit presence check 24vdc

SIEMENS 5WG1 125-1AB22 GAMMA Instabus Power Supply

SELCO T2600 DUAL CURRENT RELAY T2600-02

MOXA EDS-P308 Ethernet Device Switch

G24 SCHLEICHER G24 (B) Power Supply Module 31210048

Allen-Bradley 1794-OA16 Flex I/O 120 VAC OUTPUT

Schneider Electric MTN644792 KNX REG-K/8x24

TOKAI RIKA 50405

Siemens 6SC9811-4CK02 / 459 001.9227.00 / 6SC9811-4CH00

GE Fanuc Versamax IC200UDR010-CH Micro Controller 24VDC/240VAC Module

ABB UD/S 2.300.2 iversal Dim Actuator 2CDG 110 074 R0011- WITH BROKEN

EPI Elettronica M226 ETP-485Slave Y /ETP-485Slave / 12C passante

EATON 2A11897G04 Mechanical Pop-Out Trip Indicator

CUTLER HAMMER Spring Rel 208/240 VAC 220/250 VDC / 2C12790G49

Johnson Controls LP-FXN-1 Supervisory Controller FX20/128MB RAM 64 MB FLASH

BENCHMARK 15B10857G2 REV. 1 CONTROL BOARD - With Missing Part/Component

BENTLY NEVADA PROX/VELOM 1/0 MODULE TRANSDUCER 140482-01

ABB 1SAP240600R0001 DC522 D3 DIGITAL OUTPUT / INPUT MODULE

Eaton LAUAL1 AL/LO AUXILIARY. SWITCH 1493D37G04

ABB KNX 6197/53-101-500 / UD/S 1.2400.2 iversal Dim Actuator 230V

YAKO YKA2811MA Stepper Motor Drive

Delab NV-8S NAVIGATOR POWER FACTOR CONTROLLER

Smart Bus Flourecent Ballast (0V-10V) Dimmer/SB-6B0-10V-DN

HDL MRDA0610.432 / HDL 6CH 10A 0-10V Ballast Controller

WAECO SinePower SP164 MSK160-024

ABB 1KGT004700R5011 CARD 23AE21

ABB UD/S 2.300.2 iversal Dim Actuator 2CDG 110 074 R0011- WITHOUT

ABB M102-M Motor Control  Protection it Rated Current 2.5-5.0A

Telemecanique STBNDN1010

ELIWELL ID985/S / ID985 /S/E/CK ID34DR2SCDH00 WITHOUT ACCESSORIES

NEUMANN 2 036 1/ 20361 Audio Card -  Without

Delab NV-8S NAVIGATOR POWER FACTOR CONTROLLER-WITH BROKEN PART

Jg 2194 REG KNX EIB Steuereinheit 1-10 V 4-fach 2194

KKM50017284H04 AVDMAT PCB Board

ThyssenKrupp BPP 2664.65 MOD 333333 PCB Board

ABB 2CSG352436R1201 /RD296-DIG-115 EARTH LEAKAGE RELAY

M3 SDS 14-1147 CONTROL BOARD 8000040525 REV00

3006 Triconex Enhanced Processor Module 3006

TOA Trantec S4.4 Series UHF Wireless System

SIEMENS 6DP3500-8AA SPEICHERMODUL

1F83C-11NP Carrier 1F83C-11NPCA NON-PROGRAMMABLE THERMOSTAT - LOT 6 PCS.

Siemens QBM81-5 Differential Pressure Monitor/Switches LOT 3 -  WITHOUT

Microsemi Power Dsine 9501GO / 1-Port Outdoor Midspan Rev : B2

Kidde-Fenwal RXTX -74-200005-001 SLC Card RX/TX US K8

Kidde-Fenwal RXTX -74-200005-002 SLC Card RX/TX US K8

ORIENTAL MOTOR CRD514-KD STEPPING MOTOR DRIVER

Remote Termination Card 131600057 17346 21 / 01513-08 PCB BOARD

ABB NCHM-21 MD KIT CHARGING MONITORING KIT

SIEMENS 750830-903 REV.S /SCH 750836 REV.D PHOTOMETER CONTROL BOARD

SIEMENS TD20/240-8 TEXT DISPLAY 6AV3020-1EL00 W/O ANY ACCS.

6 Keypad Kit  Remote Control For OSD Nero Multi Channel Amplifier

Siemens Landis  Staefa NIDES.RX-CO Data Controller- WITH /DAMAGED

Eaton AA114LPK For Series C Type L Auxiliary AL/LO Switch 1493D37G02

Siemens 6FL3001-5AA02 SICLIMAT COMPAS LC-Display 6FL3 001-5AA02

ROD00261 / 6346-03, DISCHARGE VALVE-PISTON AND CONNECTING ROD ASSEMBLY

MERTEN 649325 IVERSAL DIMMING ACTUATOR REG-K/4x230/250W- WITHOUT COVER

SIEMENS RXC31.1/00031 / RXC31100031

ABB CS72-12io8 IXYS Semiconductor GmbH thyristor - A7/C2/G1 6 PCS

 EMAX-MR16IN REV 1.32.0 INPUT MODULE 16IN / 20UT

SIEMENS PXC3.E75 ROOM AUTOMATION STATION

SCHNEIDER ELECTRIC MTN649330 IVERSAL DIMMING ACTUATOR

EMERSON 775XD11NAWA3WK9 SMART WIRELESS THUM ADAPTER

Jotron Tron VHF GMDSS Maritime VHF Radio Ph- Without Charger

GE Lentronics Multiplexers B86448-03 DATA-LS it / 087-86447-02 WITHOUT ACCS.

GE Lentronics B86463-01 CONTACT I/O IT / 08786463-02

 DMX 3404C-H 4 Channel Single Opto-Isolated

Cotas 51.3153.02 / CT 3153 DC OUTPUT MODULE W/O ANY ACCS.

EVC301RPO Fire Telephone Outstation c/w Handset (Push to Open), Stainless Steel

48789 Schneider Electric AAV65492 Masterpact GetnSet

Proface GP377-LG11-24V Touch Screen Board Accessory GP377-SUB

PROTECH 1022-032 CIRCUIT BOARD

PROTECH 1022-032 CIRCUIT BOARD M1 2N3055-7923

CIMON AXP089CD CM-XT07CD-DN -SCREEN PROBLEM - IT ONLY, NO ACCESSORIES

Honeywell SIO12000 Series Sylk I/O Expansion Module 20-30VAC,10VA 50/60Hz

SEKO KONTROL 100 /K100CDPM0000 SINGLE PARAMETER CONTROLLER - WITHOUT ACCESSORIES

BECKOFF EL7047 STEPPER MOTOR TERM WITH INC. ENC AND VECTOR CONTROL

Samwha EOCRPMZ-WRDZ7WQ Motor Protection Relay/EOCR-PMZ M1

SAND PS9016 Melt pressure intelligent control

AVO international 5440-237(A2) board

GM INTERNATIONAL D5011S REPEATER POWER SUPPLY MODULE

Rexroth cml40.1-np-220-na-nnnn-nw 1070088588-302 / 1070922877-502 CIRCUIT BOARD

Schneider ACC3EA001 Ubc60 Braking Resistor Controller Module W/O ANY ACCS.

Johnson Controls M9106-IGC-2 Electrical Actuator

STAEFA CONTROL SYSTEM NTIM TEMPERATURE CONTROL W/ 7 MODULES--SA

Australian Monitor ZM3M Remote MicrophPaging Station

Schneider Electric SE7300F5045B FCU ROOM CONTROLLER

905 Helvar Digidim Router -  Only with Damaged Front Top Label Area

EMERSON ALCO CONTROLS AX-LDPS-FD113S LIQUID DIFFERENTIAL PRESSURE SWITCH

DORNA EPS-BS-0D75AA-1000 AC Servo Driver

Yokogawa PW481 Power Module PW481-10-S2 100-120VAC 50/60HZ 2.5A

GE Fanuc IC200CPU001-GK VersaMax CPU Module

EATON SNT1RT12K SHT TRIP 1490D75G14

MITSUBISHI HC-MFS23 AC SERVO MOTOR

MITSUBISHI MR-J2S-70B AC SERVO MOTOR

MITSUBISHI MR-J2S-70B AC SERVO MOTOR

SIEMENS QFA2060 ROOM HUMIDITY/TEMPERATURE SENSOR

WAGO 858-508 Relay Module 1 St. Rated Voltage: 230 V/AC Switching Current /7 PCS

WellLift PWLS0001 DIN MODBUS IT INSIGHT 2 INFORMATION

ABB RCBO 2CSR175092R2164 DS271 AC-C16/0.1 ELN 100mA Lot 6

ABB DMTME-I-485-96 DIGITAL MULTIMETER 2CSG163030R4022- W/ DENTS ON THE SCREEN

COMMSCOPE VD-S4-CPUSEW-H-43 4-Way Low P/M High Power Splitter without clip

COMMSCOPE VD-S3-CPUSEW-H-43 3-Way Low P/M High Power Splitter With Clip

HONEYWELL VM3D 50119638-001 DOCK WITH INTERNAL POWER SUPPLY W/O ANY ACCS.

SCHNEIDER ELECTRIC UI-8/AO-V-4 SMARTX CONTROLLER SXWUI8V4X10001

SIEMENS 6GK 443-1EX02-0XE0 SIMATIC NET CP FUER INDUSTRIAL ETHERNET V5.0.0

CROWCON QUAD CHANNEL MODULE SWITCH POSITIONS

ECOM Instruments I.ROC 620-EX Pocket PC (need change battery)

DELTA CONTROLS eBM-800 375606 EARTHRIGHT ENTELIBUS

CEM SYSTEM PCB/600e/007 - 3091 lithium metal batteries contained in Equipment

Royal Electric UT127CH Royal Fan 230V~ 50/60 Hz 15/14W Ball Bearing

Johnson Controls - Metasys DX-9100.8996 Programmable Controller - OK

Allen Bradley Smart Motor manager front cover only

ProSoft 3600-MBS PCB Rev 2.1

Schneider Electric TSXRKY12EX 12 SLOT EXTENSION RACK

MERTEN 647895 SWITCH ACTUATOR REG-K/8x230/16

ABB NT/S 12.1600 Netztell GHQ 605 0056 R0002

SCHNEIDER ELECTRIC 59715 MES120 14 INPUTS 6 OUTPUTS /24-250 VDC

Allen Bradley 25.610.202-01 / 25.038.242f Card for Smart Motor Manager

Wago 750-347 Module LOT 2