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。

Parker Watts R344-02A Miniature Regulator R344-02AL013JX64 SET @13 PSI

Samsg Washer Control Board DC92-01738A

Riverbed 410-00047-01 Rev. 2.2 Quad Port PCI-E Gigabit Bypass Card

GE Range Relay Board WB27T11355

Telect 747-1001-0000 MIX56 M13 Mux Module 302950 REV. A2

TIMES MICROWAVE TUFFGRIP ADAPTER 3191-223EA = N Male-7-16 Male

GE Washer Control Board 175D4489G004

GE Washer Control Board 175D4489G004

DAVE ELECTRONICS SYSTEM HOUSE PowerPC 405EP CPU SODIMM MODULE DPC2433I0R

 Dell 0FD841 CPU Heatsinks WITH SCREWS

Samsg Washer Control Board DC92-01738B

LITEON PS-2751-5Q 750W Power Supply 0F3R29

2 SUPER SAS810TQ REV. 1.00  BACKPLANE CIRCUIT BOARD

Samsg Compact DCS MISC1 KP24D-BMI/XAR CARD 650-240022EA

Samsg Refrigerator Control Board DA92-00447C

Kenmore Dryer User Interface Display Board W10023350

Whirlpool Washer Control Board 8564291

Electrolux Washer Motor Control Board 134618210, 4446991

HP Motherboard 462432-001, 460969-001 with Core 2 Duo 3.0GHz

 HP Motherboard 462432-001, 460969-001 with Core 2 Duo 3.0GHz

Netapp/Xyratex 43662-14 ESH MODULE 2GB Fiber 106-00019D0 RS-ESH2-FC-14-0P

WHIRLPOOL Refrigerator Fridge Defrost Control 2304143

CCT-3312BTFC(C18) N-BAND GIGABIT ETHERNET 10/100/1000BASE-TX TO 1000BASE-SX/LX

OPTILLION Transceiver Module TOP 3010-SC 1033756 10GBase-LR GBiC

Whirlpool Refrigerator DEFROST Control Board 2169268

Hikvision PCI Matrix DS-4002MDI

OM4 24 Cores MTE Female to Fan Out 8 DX LCPC Fiber Optic Patch cord 3 Meters

Whirlpool Washer Control Board 461970230671

Whirlpool Washer Control Board 461970230681

Whirlpool Washer Control Board 8541034

Mini-Circuits ZB3PD1-222-S DC Pass Power Splitter Combiner 500-2200MHz 3Way SMA

Samsg Refrigerator Inverter Board DA92-00268A

Kenmore LG Refrigerator Dispenontrol Board 6870JB8254D

INTEL PRO 1000 PT QUAD PORT LP SVR ADPTR 884309

WHIRLPOOL WASHER CONTROL BOARD 8564374

SUPERMICRO AOC-SG-I4 4 Port Gigabit Net Adapter

SAMSG REFRIGERATOR Main Control Board DA41-00476E

CROSSBEAM - NSK571CP4 (B) 4 Port Gigabit RJ-45 4BSK0571B1X0

Crossbeam Systems NSK571GB4 REV.B 4 Port Gigabit SFP Quad NIC Interface

SUPERMICRO AOC-SG-I4 4 Port Gigabit Net Adapter - full height

OM3 24 3.8 RLT PL MTE(F)F/MTE(F)F 3M Fiber Optic Patch Cord 3 Meters

GANDI INNOVATIONS OPTO-COUPLER INTFC REV 1.0 390-315031

HP MEDIASMART SERVER BACK PLANE SJ-D4, 06427-2, 48.60M02.021

Set of 2 - Ericsson KRY 101 1587/1 R3A Bias DC Injector

Grass Valley Equalizing DA Model 8502 CARD

PAIR (2 EACH) IGS Volumeline 20 LBS Gas Spring 12 INCH LONG 66U089264JJ

 each Elite Lighting ELX-504-R-W Emergency Exit Sign for Damp Location

Miranda DENSITE DISPLAY MODULE 1482-0200-301

2 Apple 607-3433 Delta Fan AFB1212HHE 120x120x38mm 12v 0.75A 4-pin Brand

Whirlpool Dryer Control Board W10215448

Whirlpool Control Panel Part W10110651

LG SUPER MULTI DVD REWRITER MODEL GH22NS90

WHIRLPOOL Refrigerator Control Board W10120824

Whirlpool Uontrol 4619 702 30691 LMUI-042309

AJA R20DA SDI Distribution Amplifier

Lectrosonics LECTRO CR187 Lavalier Wireless MicrophReceiver Only

Lectrosonics LECTRO CR185 Lavalier Wireless MicrophReceiver Only

KETAY MFG CORP. TYPE 15CX4A AVIATION SYNCHRO TRANSMITTER 400Hz

DENON A30C5 1U-3802-2 P.SUPPLY-1 IT

DENON 2223803202 1U-3803-1 P.SUPPLY-2 IT

DENON 1U-3800-1 A. VIDEO IT

DENON 1U-3-3802

GE REFRIGERATOR CONTROL BOARD 200D2260G009

VEP82234A SERVO CNTL FOR Panasonic AJ-HD3700

Dell 0FD841 CPU Heatsink WITH SCREWS

OM4 RLT PL 16 MTE(F)F/MTE(F)F B 3M MT-852016-625-625-0003M-B852 Patch Cord

OM3 RLT MTE(F)F/3 x 12 MTE(F)F, 3M Fiber Optic Fan Out Patch Cord 3 Meters

IXIA LM1000SFPS4 4-Port SFP 1000Mbps Ethernet Load Module

Whirlpool Washer Control Board W10369101

HITACHI 300GB 15K 6G 3.5'' SAS HDD 0B24479, HUS156030VLS60

LITE-ON PA-5380-1G REV. C 472122-001 POWER SUPPLY BOARD

KENMORE WASHER CONTROL BOARD 461970230641

SAMSOM S1 MICROPHIN ITS  

Whirlpool Refrigerator Main Control Board 2319751

intel TXN174312013F06 10Gps Transceiver P/N C61121-003

MOLEX CBL ZQSFP28G 30AWG 3M TEMPFLEX - 38 Posit QSFP Plug to Plug 1002971301

Whirlpool Refrigerator Control Board 12784407

Horizontal Indoor/Outdoor Aluminum Louvered CFL Step Light

Whirlpool Refrigerator Defrost Control Board W10135901

LG Refrigerator Control Board EBR622807

AJA RD5CE Two Channel SDI to Analog Video Converter (Decoder), Channel to

SMC NAR2000-N01 Pneumatic Pressure Regulator

SAMSG REFRIGERATOR CONTROL BOARD DA41-00519Z

Samsg DCS Compact RAM 1 Memory Cartridge KP24D-BRA1/XAR

JFW INDUSTRIES 4-Way Power Divider/Combiner 2-8 GHz, 50PD-638 SMA

WHIRLPOOL REFRIGERATOR DEFROST TIMER-PART# 2176340

SuperMicro SuperServer X8DTT-HF 1RU CHASSIS DUAL XEON X5650  BACKPLANE H/S

PicoLight XENPAK PL-XKC-SC-S45-OC 10GB GBIC Network Adapter Module

GE REFRIGERATOR CONTROL BOARD 200D1028G007

IXIA 400T Traffic Generator Performance Analyzer BACKPLANE BOARD 850-0020-0201

Kenmore Whirlpool Refrigerator Defrost Timer Board 2213473 WP2304099

Pico Macom MPS-PSF12/16 Power Supply

Whirlpool Refrigerator ICE Control Board W10135899A

LG Range CONTROL BOARD EBR80595701

Brocade 80-1001681-03 REV C AVN2502H0C7

SAMSG WASHER CONTROL BOARD DC61-01657A

SAMSG WASHER CONTROL BOARD DC61-01657A

WHIRLPOOL Refrigerator Control Board W10352689

DELL 0MD84F Poweredge C1100 PWA Power Distribution Board

Whirlpool Dishwasher Control Board W10252595

FAFNIR ER8 INSERT BALL BEARING 1/2"ID x 47mmOD

SealMaster Insert Ball Bearing ER-8 1/2"

 Ericsson RPM U513 587/600 Cable ASSEMBLY

LITEON PA-5290-1M REV. C POWER SUPPLY BOARD 503072-001

Whirlpool Refrigerator Defrost Control Board W10135899B

Whirlpool Refrigerator Control Board 2322572

Whirlpool Refrigerator Defrost Control Board 2303824A

BEST POWER TECHNOLOGY 2954A-P07 STATIC SWITCH DRIVER BOARD

KENMORE REFRIGERATOR COMPRESSOR START RELAY W10361443

WHIRLPOOL REFRIGERATOR Control Board 2303825A

Whirlpool Refrigerator Adaptive Defrost Control Board 2213475

Whirlpool Refrigerator FSP Relay Board W10120821

LEDEX SOLENOID LINEAR TUBULAR 174412-033 40VDC 2.37A ACT 15V CONTINUOUS

SAMSG WASHER DISPLAY CONTROL BOARD DC92-00125A

PPI KC60F Leveling Swivel Caster 550lbs Capacity 2" Diameter Wheel Aluminum

1 SET NETAPP 110-00173RA2 AND 110-00173LA2 RIARDS

Whirlpool Refrigerator Control Board W10352689C

MD21300-628 NEMIX 16GB DDR4-2666MHz PC4-21300 Non-ECC

Harmonic Narrowcast Services Gateway NSG8204-0G-00-08-1

KENMORE WASHER CONTROL BOARD 461970230661

KENMORE REFRIGERATOR CONTROL BOARD 6871JB1215F

Apple iMac 21.5" A1311 Power Supply, 205 W, Part # 614-0445, Delta ADP-200DF

 Apple iMac 21.5" A1311 Power Supply, 205 W, Part # 614-0445, Delta ADP-200DF

Whirlpool Refrigerator Control Board 2303826

Whirlpool Refrigerator Control Board 2303826

HP Proliant DL380 G5 Server 8 Fan Tray Assembly 394035-001 AFC0612DE

Digitrans DTE-7150T Rackmot Digital Satellite Receiver

GE Lamp Stage Studio Quartzline EHF Q750 4CL 750W 120V Light Bulb General

OM3 12 Cores MTE Female to Fan Out 4 DX LC/PC Fiber Optic Patch Cord 3 Meters