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。

Sony MB-806A Wireless MicrophTer Base it w/ 6 URX-M2 Ter Modules

Wavetek 271 Programmable Pulse Fction Generator C6981991

HITACHI SAN SERVER POWER SUPPLY PPD7502-2 REV. D

EMB Transformer TYPE KTT0.5 400-480 VAC TO 27 VAC @ 75 AMPS # ETU.0,5/A1/0/1S

Cisco N20-B6625-1 V02 UCS B200 BLD SRVR  2X E5649  0GB RAM  2 10K 146GB SAS

CISCO ONS15454 800-08706-01 ALARM INTERFACE CONTROLLER CARD SN1PHHEFAA

AMX Enova 6X2 All-in-Presentation Switcher DVX-2100HD-T

Arris 2RRXR-30 Dual Return Path Receiver CHP-2RRXR-30-S

Arris CHP-2RRX-S Dual return path receiver 5-200 MHz, SC/APC

CISCO 15454-OTU2-XP 4 X OTN 10G MR TRANSPONDER WOWUA1VDAA

CISCO 15454-OTU2-XP 4 X OTN 10G MR TRANSPONDER WOWUA1VDAD

OPLINK 4X28G CFP CFP1C04MAC00009C

Aurora AT3315G Transmitter AT3315G-E-1-AS

TECTROL TC45D-1481, 6800 48V POWER SUPPLY

MOXA V2201-E4-T ULTRA-COMPACT EMBEDDED COMPUTER

MOXA V2201-E2-W-T ULTRA-COMPACT EMBEDDED COMPUTER

ixia / Agilent N5530B N2X 2-port 10/100/1000 BASET 1000BASE-X (SFP) Enet XS-2

ixia / Agilent N2X E7909A-001 2-port OC-48c / STM-16c SMF-SR POS Test Card

ixia / Agilent N2X E7909A-002 2-port OC-48c / STM-16c SMF-SR POS Test Card

ixia / Agilent N2X N5553A - 4 port 10/100/1000BASE-T and 1000BASE-X (SFP) XP-2

ARRIS 540273-002-00 RFPM MODULE QAM 2x8 PSU

General Instruments Omnistar RPR/2 Dual Optical Return Path Receiver

General Instruments / Motorola Omnistar LM-11 Forward Transmitter

TDK-LAMBDA Vega 650 V605LKLK power supply module with Fan

IXIA Agilent N2X N5630A 2-Port 10/100/1000 BaseT 1000Base-X (Sfp)

HAMAMATSU C2903-01 POWER SUPPLY

RARITAN COMPUSWITCH CS8R 8 PORT SWITCH (WITH RACK MOTS)

Rohde  Schwarz A160 IF Filter Assembly 1065.7364.96

BIOSTAR MB-1212V VLSI AT MOTHERBOARD W/ 286-12MHZ CPU  1MB RAM

Telica Plexus 9000 DS-3 Front Module 89-0365-A

Telica Plexus 9000 QUAD OPTICAL GIG E Module 89-0399-A

Sony VPR-79 Board 1-689-502-11

Sony FC-91 Board 1-689-506-11

Sony EQ-94 Board 1-689-489-12

Sony DR-508 Board 1-689-488-11

Sony HIF-8 Board 1-689-492-11

Sony SF-99 Board 1-689-500-11

C-COR Dual Path Receiver RPR5202H, RPR5202H-AS-3

Aurora AT3311L Transmitter AT3311L -NN-2-AS

XFX NFORCE 680I LT SLI B-N680-I Motherboard  2.4GHz INTEL SL90M CPU  H/S  FAN

Alloptic EVRR0401 Edge Video Return Receiver

Ixia LM1000STXR4 4-Port Dual-PHY (RJ45  SFP) 10/100/1000 Mbps Enet Load Module

Portwell PCOM-B219VG SBC MOTHERBOARD (R).PCOM-B219VG-VI-3612QE with MOQ

ADVANTECH TPC-1270H REV A2 19C3127008 INDUSTRIAL MOTHERBOARD  INTEL SL8LW CPU

VIA EPIA-EX Mini-ITX SINGLE BOARD COMPUTER EPIA-EX15000G w/1.5GHz C7 CPU 1G RAM

NORTEL NT0H21CE WMD8G8DDAA OM5000 100GHz 2.5G Flex OTR Band 4 Channel 4

NORTEL NT0H81DC WMOTWZJAA OM5000 100GHz 2.5G Flex OTR Band 4 Channel 4

NORTEL NTPM16JB WMTU4WOBAA OM 5100 OTR B1 CH2

NORTEL NT0H81EA WMOTAW1JAA OM 5200 OTR 25G FLEX CARD

JDSU ISS-5116A Input Selector Switch

MPS Power Supply TDI 09004-136874-N48D00

HP 365062-001 mPGA 604 MOTHERBOARD  DUAL 3.2GHz INTEL XEON SL7DX CPU's  I/O

OMNIMETRIX G9000L MONITOR AND CONTROL

GANDI INNOVATIONS, I/O CONTROLLER BOARD II REV 2.2 10/2004 DES: BH CAD: FM

Agilent 16802A Backplane 16800-66405 with Wiring Harness

EGT ELMA 39C02DZX18Y3HC35-EGT-RF CONTENT CREATOR 001QTET22A-00A

Motorola ARPD-1000 High Density Compact Demodulator  6 ADM-4000 Modules

SPOWER SPX-0121 Power Supply Input 100-240vac Output 7.5V

Speedaire 5Vnr5 Air Cylinder, 3 In Bore, 8 In Stroke, Rod Body Double Acting

INTEL S5520HC E26045-454 MOTHERBOARD WITH DUAL XEON X5680  48GB RAM

TYAN S5247,S5247G2NR-EFI,45086955 D,M/BINTEL PENTIUM DUAL-CORE SL5TL CPU2GB R

LECO Corp Channel Board 666-243B010, 666-521C-G1

LECO Corp 666-345A010, 666-345A-A Steering Board

LECO Corp 666-358A010, 666-358B-B4 Module

LECO Corp 666-145-010-B, 666-145-B5 GP Linear Power Supply Board

IXIA LM1000TXS4 4 Port Gigabit Ethernet Load Module

IXIA OPTIXIA ADAPTER BLADE BOARD MODULE 944-0007-01

Quantum TC-S34XX-QE SDLTi Tape Drive Loader

CISCO ONS 15454 Optical Service Channel card (OSCM) WMOTBRJAAA

ATX NETWORKS QRFB1000-23GP/4/DC Q-Series QRFB 23dB HEADEND BUFFER AMPLIFIER

IBM SEFCO 8MHZ TURBO BOARD WITH Z02 BOARD

Agilent N2X E7909B 2-port OC-48c POS/FR XS Test Card

LENOVO L-IG43R4 MOTHERBOARD  2.6GHz INTEL DUAL CORE SLGTL  4GB RAM

Scientific Atlanta Continuum Series 9890 ENCODER 9813 DCDC 6MHZ CONTROL 546270

AJA RH10MD HD-SDI to SDI Down Converter, Distribution Amplifier, HD-SDI, SDI,

Rohde  Shwartz SMIQ Attenuator 1008.7375.02

Acme Packet 150A4-48M-R Switching Power Supply 110-0004-60

IXIA AFD2 IRIG-B Clock Source 870-0078-01

 NVISION AUDIO CONTROL IT NV9056

INTEL MOTHERBOARD D865GBF/D865PERC, C25843-407  2.40GHz PENTIUM 4  2GB RAM

 INTEL MOTHERBOARD D865GBF/D865PERC, C25843-407  2.40GHz PENTIUM 4  2GB RAM

PCI TECHNOLOGIES PCI Frequency Generator : 1-4 carriers MODEL: TSG-4000FP

ARRIS FABRIC CONTROL MODULE ARCT00584

JDSU QT-600 Ethernet Test Head Probe QT600 with VoIP

C-COR SP690-Y01A POWER SUPPLY CHP-PS/DC1-Q

LENOVO IDEACENTRE K300 L-IG43R4 MOTHERBOARD  3.4GHz INTEL SL7J8  4GB RAM

Aurora AT3520G Transmitter

Evertz 7721AD8-HD HD/SD-SDI 4 Group Audio AES De-Embedder

PCI Technologies Ltd. SCN-1000 it with SCN-16M Module

CISCO DELTA FIORANO 6.0 AC Power Supply Module N7K-AC-6.0KW

C-COR PLEXIS MFX PSMC-9500-AC POWER SUPPLY IT

BROCADE BR-MLXE-ACPWR-1800 Delta 1800W Switching Power Supply 23-0000129-03

HP / Agilent / Keysight 86060C Lightwave Switch Option 001, 017, 051, 109, 206

DEC HSJ40C Controller Board 54-23885-01

AZ900005 Cartier_B 20060718 REV.B motherboard  SL94W CPU 512 MB Ram

Intel Server Board SE7501BR2 Dual Socket 603/604  2x Xeon 3.06GHz CPU  4GB RAM

 Smart-AVI DVX-2P Dual DVI-D RS232 , USB AUDIO TRANSMITTERS  RECEIVERS

Aurora AT3010G Transmitter AT3310G-A-2-AS,

ATX Maxnet II MPDC 10326 PSU POWER SUPPLY 10326-21

ARRIS EGT QUARTET Processor Board 022Pro-02-03-PCB, AQ0221S D

S Blade X6250 Server 8GB RAM DUAL PROCESSORS 594-4531-01

HP PROCURVE J8433A E6400-6XG cl Switch - switch - managed - 6 ports

NANOKEM CONTROLLER BOARD NGTH-9700C

Synchronous DVB Platform DR-PROXY CARD

Synchronous DVB Platform DVB-LTX, DVB-HTXP-35-C Transmitter

Digitrans DTE-7100 Digicipher II Intergrated Receiver Descramble

NVision NV3512 ASYNCHRONOUS OUTPUT MODULE EM0013-00

NVision NV3512 CROSSPOINT MODULE EM0020-00

Dell 0M233H Motherboard  2x 2.9GHz INTEL XEON SLBF3 CPU  12GB RAM  DUAL H/S's

Scientific-Atlanta 744421 545485 10-bit Baseband Video 4 baseband audio encoder

Kramer 6809HD HD-SDI Audio Embedder

Asus P4B266-LM Motherboard WITH 1.60GHz PENTIUM 4  HEAT SINK AND FAN

MATSONIC M5A89 MOTHERBOARD WITH CYRIX MII CPU

Dell Poweredge T310 Server LGA1156 Motherboard P673K 0P673K  X3430 XEON 10GB

Sony SS-52B Control Board 1-648-535-3BACK PLATE

BCM SQ576 MOTHERBOARD  INTEL PENTIUM SY028 CPU  RAM

INTEL MOTHERBOARD 9K505100165 VER. E02 WITH PENTIUM II CPU  256MB RAM

Adva FSP 150-GE112Pro 1078904702-01

Motorola Tectrol TC54S-1383 472877-001-G 200 W 4.5 A MPS power supply

RTS Systems MODEL 416 AUDIO DISTRIBUTION AMPLIFIER

DELL 722396-100 REV. A00 MOTHERBOARD WITH PENTIUM III  RAM

Aurora AT3312L Transmitter AT3312L-LL-2-AS CH: LL

Harmonic PWRLink II Optical Transmitter PWL4912TA-AS-1

DELL 0FGCC7 MOTHERBOARD  3.0GHz INTEL XEON E3 SR2LG CPU  64GB RAM  H/S  FAN

INTEL AA 656658-202 PB 654255-002  200MHz INTEL PENTIUM i200 SY045 CPU  H/S

Arris CHP-CMM-1 System Management Module Max5000

Arris CHP-CMM System Management Module Max5000

Arris CHP-SMM-1 System Management Module Max5000

Ross Video PS-7103 Power Supply

AMPTRON INTERNATIONAL PM-9600 POWERTX MOTHERBOARD WITH AMD-K6-2 CPU

Agilent E5215A 10/100 16 PORT XP Ethernet Test Card

AGILENT N2X E7919A Gigabit Ethernet XR Test Card (GBIC)