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。

DMM DYN2 AC Servo Drive DYN2-TLA6S-00

NetApp X2062A HBA SAS 2-PORT QSFP PCIe 111-00196A0 Controller L3-00142-02B

Sony HMZ-T3W-P Personal 3D Viewer Processor (it ONLY)

wavetek 295-001 1000-0681-02 Arb Channel Module

wavetek 295 1000-0675-06 Arb Channel Module

Mellanox CX424A MCX424A-BCAA ConnectX-4 40GbE Adapter

HP Q6465-60001 Copy Processor Board  Q7559-60001 for HP Color LaserJet CM06040f

0 Kingston KVR533D2S4/1G 1GB DDR2 533 SODIMM Laptop Memory RAM

Chi Mei G121X1-L01 Rev:C1 12.1'' LCD Panel w/ Touch 1201.-X131/01

Chi Mei G121X1-L04 Rev:C1 12.1'' LCD Panel w/ Touch

Dell Y72J3 0Y72J3 PRECISION 7720 MOTHERBOARD E3-1535MV6 3.10GHZ

Nortel 450-1SX P201729-AR09 REV:02 Mda 1000BASE-SX Uplink Module

PHILIPS 3500-3431-01 9200-16049-002 Advanced Input Board for HDI 5000 SonoCT

Planet Media Conversion VC-231 Ethernet Over VDSL2 Converter

 Planet Media Conversion VC-231 Ethernet Over VDSL2 Converter

Planet Media Conversion Ethernet Over VDSL2 Converter VC-231

 Planet Media Conversion Ethernet Over VDSL2 Converter VC-231

Motorola MC45 MC4597-AAPBA0000 Mobile Computer MDE Data Collection Terminal

D SMMotorola MC45 MC4597-AAPBA0000 Mobile Computer MDE Data Collection Terminal

Apple Mac mini A1283 Desktop computer W/ A1188 POWER ADAPTER

D SMApple Mac mini A1283 Desktop computer W/ A1188 POWER ADAPTER

Gigabyte GA-GC330UD Motherboard Atom 330 Socket 479/437 Intel 945GC Mini-ITX

Br Automation X20 D0 9322 Input Module Rev. H0 WITH BM 11 REV. G0

Br Automation X20 D0 9322 Input Module Rev. G0 WITH BM 11 REV. G0

SGI 018-0927-001 Power Cord 48V for Onyx3/Origin/ALTIX3000

SHIMADZU BOARD 228-34364A ASSY 228-34363-91 PCB FOR Shimadzu SCL-10A

HP AP858A 300GB 15K SAS 3.5" 6G 601775-001 HARD DRIVE

HP A7136-80001 REV:A1 A7136-60001 System Board

HP 581769-001 DL165 G6 System Server Motherboard 445120-002 w/ AMD OPTERON

Varian 87195840 992248 992248-03B Receiver RCVR Controller  Clock Generator BOA

Avaya IPice 500 VCM32 700417389 w/ ATM 4U 700417405 (9-12)

Cisco HWIC-8A V02 Async Module 8-Port HWIC version of NM-8A 73-13319-01 A0 , 80

 PACIFIC SILICON SENSOR TYPE:MOD 501393 P/N : 501393 DIODE

TDK-Lambda HWS300-24 EHFP Power Supply 24VDC 14A

HGST S841E800M2 800GB S841 MLC SAS 6Gb/s 2.5" Solid State Drive SSD

SHIMADZU Board KE-036B FUTABA FP1583A 150-40-1020-1

Lenovo ThinkPad L520 63Y1807 DDR3 Laptop Motherboard w/ IBM 04W0492

IBM  Lenovo 44C3804 System Board / MotherBoard for Laptop R60

IBM Lenovo  ThinkPad 04W1655 Laptop LCD Screens 13.3" (1366 x 768) WXGA

Lenovo 04X4044 B140RW02 V.1 T420S T420 LED HD WXGA  14" LCD Screen SD10A09768

 Lenovo 93P5669 93P5673 X220 X220i 12.5" HD 1366x768 LED LCD

IBM  Lenovo 41R7624 System Board for Laptop 3000 N100

IBM Lenovo 60Y4016 ThinkPad Laptop X61 System Board CPU SLA3S 1.40/4M/800

IBM  Lenovo Genuine ThinkPad 41W1207 Video Card FOR 3000 N100

IBM X-SERIES X3650 42D3650 43W0328 SERVER SYSTEM BOARD w/ 2x SL9MV Xeon E5320

IBM 26K4847 HS20 SCSI STORGE EXPANSION IT

IBM 1GB-TX iSCSi Toe 1-Port PCI-133 QLA4050C 03N6056 Card

IBM DD3 ISA IDE RAID 085-00697-0000 23R5661 DD3 CARD

IBM LTO 3 Ultrium3 24R2126 Tape Drive 400/800GB 23R4693

IBM 43W9559 44W4308 Heatsink for x3850 M2 / x3950 M2 W/CPU L7345 SLA6B  44E4513

Dialogic D/480SC-2T1 85-0483-010 96-0310-006 PCI Voice Card

lot of 11 PNY HDTV Breakout  S-Video Composite Adapter 91004686A

EPAPER TYPE: EM Sentinel touch LCD print release controller Integration with

HAMAMATSU C8354 REGULATED CURRENT POWER SUPPLY 90-132V / 180-264V 50-60Hz 150 VA

Nexsan SATABeast Power Supply BPA-R760-4A 760W

Nexsan SATABeast W6163025 BACKPLANE

DANAHER MOTION P21NSXC-LSS-NS-14 300615 STEPPER MOTOR 65VDC 1.75AMP 1500RPM

Zultys 90-05335 8 Port FXS Analog Station SLT Card

ECI Telecom Module X36072 SM_FX0_8E OPT: 513 REV: B01

ECI Telecom Module X36072 SM_FX0_8E OPT: 513 REV: B00

Nortel NTBX02AA 44 Card Module

Super Micro X7DBI 16-DIMM Xeon Dual-Core SLBAW Blackford Motherboard

D SMSuper Micro X7DBI 16-DIMM Xeon Dual-Core SLBAW Blackford Motherboard

Mellanox infiniscale Switch 1u is5022 8 Port QSFPNon  40gb InfiniBand 40 GB

scale ARM Evaluation Development Board 700-21470 Rev 2.2

INNOVATIVE INTEGRATION 80005-1 REV B1 80005-B118 Board

WILTRON A13 PULSE GENERATOR BOARD 6700-D-31713

1350003-03-030-RS VER 0.3 G150XG01 Board

Brookfield TC-502D-230 OPERATORS MANUAL KIT

Sicon socomec MT200 E962566 Card

10PCS ST Microelectronics STI5211ZUC/A2E Low-cost satellite set-top  decoder

LPG Part for LPG Lipo M6

Andrew R137PH00-40HCN WR137 STRAIGHT SECTION 7.125-7.750GHz

Dialogic MSI/SC-R Card

Canopus StormEncoder U12-PC-207 CARD W/ U03-AB-10D SMDVStorm-RT Codec T04-AB-009

Celerity / Tylan FC-2979MEP5X-WM Mass Flow Control 200 SCCM GAS CHF3

ARECONT VISION AV3100M 3 MEGAPIXEL MJPEG COLOR CAMERA 2048X1536 WITH LENS

Celerity / Tylan FC-2979MEP5X-WM Mass Flow Control 100 SCCM GAS CHF3

AETHRA THE VOICE AUDIO CONFRENCING IT

Telemann 1650s Digital Satellite Finder Meter w/o charger

Linear Actuator Y8M176 Y81531 Elevator

INSIZE SERIES 1205 8'' 200MM VERNIER CALIPER

SPECTROLINE SSI-150 INVERTER FOR BIB-150B

AMIDA BQP03470265 GP1201 GP1203 Card

Celerity / Tylan FC-2979MEP5-WM Mass Flow Control 100 SCCM GAS N2

Celerity / Tylan FC-2979MEP5X-WM Mass Flow Control 2 SLPM GAS AR

ECI B-FOCuS ONTs/ONUs G-Light Modem 1101R 112-80112

Autonics Rotary Encoder ENB-1000-3-1 BI700683

11-328150-00 REV: A 1034158 FOR ENI GHW-50A RF GENERATOR

11-328150-01 REV: A 1034158 FOR ENI GHW-50A RF GENERATOR

HP Hewlett Packard 03455-66502 Circuit Board

ATEN CS1732B MasterView KVMP Switch AUDIO/USB 2-Port USB KVMP Switch w/ ADAPTER

SPIRENT TESTCENTER SPT-9000A CENTER ETHERNET  RS232 BOARD 40-000129-301 REV:C1

Gigabyte GA-Z68MA-D2H-B3 Motherboard DDR3 LGA 1155 w/ CPU I5-2400

Nortel NTDK15AA REL:04 A0761101 NFS363-9640 Gateway Power SUPPLY

Mitsubishi AA150XN08 15.0'' LCD screen panel

EMC 303-163-100B-01 I/O 6G SAS V1 4 PORT MODULE

EMC 071-000-543 369.6W PSU IT

Tote Vision LCD-1048HD TFT LCD Monitor 10.4" VGA RS232 1024x768 (NO ADAPTER)

LOT OF 15 Teledyne FLIR ACC-01-0003 Mot Adapter

Lenovo 00AJ071 900GB 10K 6G 2.5 SAS G3HS 00AJ072 00AJ075 00D5303

Lenovo 00AJ071 900GB 10K 6G 2.5 SAS G3HS 00AJ072 00AJ075 00MP672

Datalogic Magellan 8300 8400 BOARD 5-3237  3-0711-14

Samsg LTM170ET01 17'' LCD Screen Panel LTM170ET01-T7

AUO M170EG01 V.H 17" LCD SCREEN PANEL

 Luma Optics SFP-10G-SR-LU 10g SFP 850NM 300M Transceiver

FCI 10117949-2010LF miniSAS HD to miniSAS HD cable assembly 1m

Creo 250-00207A-A DBL RELAY 503-00207A-A

Molex 1110681011 miniSAS HD to miniSAS HD cable assembly 1m

HP CB425-67906 M4345 Main Network Formatter Board

Hitachi AS-IO1 810-7041 CIRCUIT BOARD for Hitachi Pump L-7200

HITACHI SYKC INVC751 SP-2 Inverter Board Power Suppier For LCD

Jiper 750-026182 SRX-GP-16GE SRX XPIM Module 16x 1Gbit

Edwards Y35541763 HOT N2 HEATER POWER LOOM CABLE

EMC Emulex LP1050-E FC PCI/PCI-X HBA 33/66/100/133 MHz FC1010496 FC1020059-01A

EMC V4-VS07-020 005050141 2TB 7.2K 3.5" 6G SAS HDD FOR VNX

NORTEL MERIDIAN QPC659B SER:B DUAL LOOP PERIPHERAL BUFFER CARD

Gilson 19021050 CSI-4 BOARD FOR 223 Sample Changer

TYAN S5211 S5211G2NR M0THERBOARD w/ (2GB x 4) 8GB MEMORY w/ INTEL E8400 SLB9J

Ericsson/HP Agilent 5061-3374 Base Power Supply BMJ 160 015/1

HP Agilent 01078-66504 Motherboard FOR 1050 HPLC Autosampler

ZEBEX Z-3100 Handheld CCD Scanner

F.W. BELL MODEL 8860 FIELD DETECTOR

Minkels 415 Volt Plug 12 Inputs PDU Power Strip 16A 250V MODEL 333.9610

Lenovo 00KF005 QSFP Passive DAC Cable, 1.5m for System x. 00kf017

 Ledlenser P7R Core Flashlight LED Rechargeable

Beckman Coulter LPA SYSTEM STATUS BOARD 7803088 REV:B (Broken connector) FOR

HITACHI 6HGSS 3282390-A 600GB 10K 2.5" SAS SFF Hard Drive DF-F850-DBS

Mars Antennas MA-VMB-5M 698–6500MHz Antenna

Spirent LAN-3310A 2-port GBIC SmartMetrics 1000BASE-X 410-4075-012 module‏‏

DMT80480T070-31W/32W V3.1 7" LCD DISPLAY

MITSUBISHI V701F LCD Display AA090MC01 9"