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。

Sierra Wireless MC8790 WIreless Network Card

Dell 6T980-A01 0HK718 CD-ROM Drive

Dell DD0JM1LC000 LCD Video Cable

Dell DLR30-N Screen Hinge

Buss, Bussmann R25030-2C0R Fuse Her

Atheros AR5B97 Wi-Fi WLAN Card

Atheros AR5B95 WLAN Card

 Atheros AR5B95 WLAN Card

Dell 0TR995 Heatsink for Dell PowerEdge R610 Server CPU

Samsg M471B5673FH0-CH9 2GB Random Access Memory(RAM)

3Samsg M471B5673FH0-CH9 2GB Random Access Memory(RAM)

Mersen/ Ferraz Shawmut TRS60R Time Delay Fuse

Son KDE1204PKVX Fan

 Son KDE1204PKVX Fan

Dell 0TNP01 Cooling Fan with Heatsink

Dell 2XM3Y Front Trim Bezel

Dell 2XM3Y Front Trim Bezel

Nidec M33422-16 TA350DC DC Brushless Fan

Intel 862725 SFP Transceiver

Sprecher Schuh D5-3D0 Lamp Module

HP BD07285A25 Hard Drive

Intel D31202-001 2.5" Hard Drive Caddy

Intel 7260NGW Dual Band Wireless Card

Intel 7265NGW Dual Wireless Adapter Card

Intel 62205ANHMW Mini PCI  WIFI Adapter Cards

Dell 00FVP Adapter Cable

Intel D25818-202 Riard

Intel D25818-202 Riard

Dell NN596 PowerEdge 2950 Front Control Panel Board USB/VGA

Nexcom EBC572-LF CPU Board ****

Nexcom EBC572 CPU Board **REPAIR EVAUATION ONLY**

Phoenix Contact E-UK End Clamp

RadiSys CE738A COM  CPU Board ****

Dell 0KF248 SATA SAS Tray Caddy

Dell 0KG7NR SATA SAS Tray Caddy

Trenton 92-005449-XXX CPU Board ****

Diversified Technology CAT1016 651101016 CPU Board **REPAIR  EVALUATION ONLY**

WinSystems EPX-855-G-1G-0 CPU Board ****

Radisys FB-27029-A CPU Board ****

Advantech SCB-4101 CPU Board ****

IEI JUKI-3712 CPU Board ****

IEI AFLMB-LX2-800 CPU Board ****

Phoenix Contact MSTB 2,5-4-ST ST Connector

Sanyo Denki 109R0824S401 Axial DC Fan

Teac CD-224E-N93 1977047N-93 IDE CD-ROM Drive

Dell DU90N DVD-ROM Drive

Samsg SD-616EDWR DVD-ROM Drive

Teac 1977047C-D0 CD-ROM Drive

S Microsystems 501-6920-03 Power Distribution Board

Teac 193077C6-32 Floppy Disk Drive

Toshiba HDD2164 MK2018GAP 20GB Hard Drive

 Toshiba HDD2164 MK2018GAP 20GB Hard Drive

Toshiba HDD2193 MK4026GAX 20GB Hard Disk Drive

2Toshiba HDD2193 MK4026GAX 20GB Hard Disk Drive

Toshiba HDD2168 MK2018GAS 20GB Hard Disk Drive

Fujitsu MHT2040AT Hard Drive

Hitachi 08K0633 Hard Drive

 Hitachi 08K0633 Hard Drive

Hitachi 0A28415 Hard Drive

Hitachi 0A28415 Hard Drive

Hitachi 0A32328 HDS728080PLA380 Hard Drive

HP 286774-004 Hard Drive

Toyo Electric STD92A7R Fan

HP 356910-001 Hard Drive

Seagate ST320LT012 Laptop Thin Hard Disk Drive

Inalways 0717-1S-PQ10N-A IEC Inlet F Switched Wired Snap-Fit Chassis Plug

S Microsystems 530-2822-01 Power Cable

Adaptec 2100S SCSI Adapter Card

Compaq 218620-001 Fan Cage

Dell 2X333 Cooling Fan

Amphenol Corporation 31-5693 RF Adapter

Ebmpapst 712F/2M Fan

Ebmpapst 8412N/2GMLE Fan

Ebmpapst 4656N Cooling Fan

Globtek GT-41052-1512 Power Adapter. AC Power Supply Charger Adapter

IEI 32001-006100-200-RS USB Cable

IEI 32801-007100-101-RS SATA Cable

SMC IS1000 Pressure Switch

ADDA Corp AD0912HB-A73GL Brushless Fan

ADDA Corp AD0912HB-A73GL Brushless Fan

Toshiba Samsg TS-L462D/DEAH CD-RW/DVD-ROM Drive

Samsg SFD-321B Floppy Disk Drive

Nec FD3238H Floppy Disk Drive

Compaq, HP 228508-001 CD-ROM Drive

IBM 44E9153 SSD Drive

FSP Group FSP036-RAB Adapter

Mitsumi D353F3 Floppy Disk Drive

Mitsumi D353M3D Floppy Disk Drive

Sandisk SDCFJ-256 CompactFlash Card

HP 431954-003 Hard Drive

 HP 431954-003 Hard Drive

Adaptec AHA-2930CU SCSI Controller Card

 Adaptec AHA-2930CU SCSI Controller Card

Sony CMA-D2 Camera Adaptor Power Supply it

Nidec V35375-58 VA300DC Cooling Fan

General Electric 227A240051 Indicating Lamp With Green Lens And Resistor 120V

Intel 622ANHMW WLAN Card

 Intel 622ANHMW WLAN Card

Philips SCB5265 DVD/CD-RW SlimLine IDE Combo Optical Drive

Son KD1204PFS2 Fan

HP 228503-001 Power Switch

Delta Electronics FFC1212DE Fan

Son GB0506PFV1-A Cooling Fan

Server Technology KIT-0030 Retaining Clip

Acer LS-9531P Power Button Board

Dell 3N541 Cooling Fan

DC Centaur CNDC24B7S Axial Cooling Fan

Tokyo Electron TKB7080 USB Card

Dell 3-03950-01 SCSI Cable

Schurter 4302.5002 FKS2-45-2/I Power Connector

Sierra Wireless MC7700 PCI  Mini Card | 3G Module

 Sierra Wireless MC7700 PCI  Mini Card | 3G Module

Toshiba MK2006GAL Hard Drive

Omron H3Y-4 Timer

CISCO DS-SFP-FC8G-SW SFP Transceiver

Dynaeon Industrial Co., Top Motor DF1208SL Fan

Nidec V60E12BS2CB5-08 Fan

Sanyo Denki 109P0424H701 Fan

Forcecon DFS481305MCOT Fan Assembly

Dell 0R854 Hard Drive Caddy

Top Motor DF127015BH Cooling Fan

Leviton L5-20 Locking Plug

Schaffner FN9222-3-06 Power Inlet

IBM 59Y4943 Processor Installatio Kit

Dell C515T Hard Drive Caddy

Advantech 1700060202 Y-cable for PS/2 Mouse  Keyboard for CPU card

Toyo STD92A7H Apollo Fan

Dell 07JC8P 2.5-inch SAS/SATA Hard Drive Tray

Ferraz Shawmut A50P1254 mut Semiconductor Fuse

NEC FD3238T Floppy Disk Drives

Phoenix Contact E/NS 35 N End Clamp