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。
以下链接皆有货
Zenitel Vingtor Stentofon VPA-120 Power Amplifier
Nordson R-Hot Melt Coating Variable Dispense Nozzle
Nordson R-Hot FusiRivestimento Variabile Erogatore Ugelli
V-Tronix AAX1 Power Supply Splitter Communication Aerials
CGI Circuits INC 03-0205 REV PCB Board
V-Tronix AAX1 AlimentaziElettrica Splitter Scatola ComunicaziAntenne
CGI Circuits Inc 03-0205 Rev PCB Tavola
Lem Qwave Light Power Supply EF4514Z 85-265VAC/45-65Hz
LEM Qwave Luce AlimentaziElettrica EF4514Z 85-265VAC/45-65Hz
Vaisala WXT520 Multi Variable Climate Transmitter Climate Sensor
Wylie 650V3shore RCI Latest Programmed Large Digital Indicator IMI
Navtronix 24000130TL-005 Cursor Control Heading Position Control Joystick IMI
Buckleys PHD 6Kv DC Pinhole Detector
Vaisala WXT520 Multi Variabile Climatizzatore Trasmettitore Sensore
Wylie 650V3shore Rci Ultimo Programmato Grande Digitale Indicatore Imi
Buckleys PHD 6Kv Dc Foro per Perno Rilevatore
Navtronix 24000130TL-005 Cursore Controllo Arricciatura Posizioni Joystick Imi
ABB SDCS-CON-2B Coated REV:O Control Board 3ADT309611R6102/04
Autronica BX-20 Fire System Alarm Panel 13562
Man BW BCU Diesel Module MBD PCB 1142354-4 NR.3157169-9
Hyundai 3NTS4004 N50 2HP Power PCB Card
Man BW Bcu Diesel Modulo Mbd PCB 1142354-4 NR.3157169-9
ABB SDCS-CON-2B Rivestito Rev: O Controllo Tavola 3adt309611r6102/04
Autronica BX-20 Fuoco Sistema Allarme Pannello 13562
Hyundai 3NTS4004 N50 2HP Potenza PCB Scheda
Converteam DP System Joystick Controller
Honeywell K4LCN4 51305099-100 B B7260 LCN Processor Interface Board
Deif AGC 222 Auto SincronizzaziRelè Agc
Deif Agc 222 Auto Synchronizing Relay Agc
Toki Sangyo Viscometer TVC-10 Handy
Wet Labs PCCM-USB Power and Communication Conversion System 013D
Seillangengeber Rope Length Ttansmitter SL 3020-GS 130/K/EEx
Seillangengeber 5930Z50-066.010 Rope Length Transmitter SL 3020-XC GS 130/K/02
Seillangengeber 5930Z50-066.041 Rope Length Ttansmitter SL 3020-GS 130/K/01
Stromberg Swez 2040C MT704 PCCD22N03GC00K9 PCB Card
Hydrographic Systems 93RX ODOM PCB Board EPT 101-40064 0744
ABB Power Supply Board 58913791 E 1/2
ABB Power Supply Board 57619163 F 1/2
Wet Labs PCCM-USB Potenza E ComunicaziConversiSistema 013D
Toki Sangyo Viscosimetro TVC-10 Manuale
Stromberg Swez 2040C MT704 PCCD22N03GC00K9 PCB Scheda
Seillangengeber 5930Z50-066.041 Corda Lunghezza Ttansmitter SL 3020-GS 130 / K /
ABB AlimentaziElettrica Tavola 58913791 E 1/2
ABB AlimentaziElettrica Tavola 57619163 F 1/2
Hamworthy 18095 Viec Frequenza Convertitore 8518
Hydrographic Systems 93RX Odom PCB Tavola Ept 101-40064 0744
Seillangengeber 5930Z50-066.010 Corda Lunghezza Trasmettitore
Seillangengeber Corda Lunghezza Ttansmitter Sl 3020-gs 130 / K / Eex
Aibel ATP-Powsup-E-SA-0001 Viec AlimentaziElettrica 8495
Hamworthy 18095 Viec Frequency Converter 8518
Aibel ATP-Powsup-E-SA-0001 Viec Power Supply 8495
Gas Tech DC071528 D-Guard Gas Detector 57-1010
STN Atlas GE3044G205 Interface Marine Electronics GE30044T20501B DS05-IMB
Bernard Quarter Turn Electric Actuator OAP
Oceantools PWB 37-200039-001 PCB Card 87-200038-001
Measurement Technology LCI-90i Line Control Instrument 7007
Remote Ocean Systems 52-26810-01 Colour Zoom Cam ROS 20-20
M/D Totco FPB 219771-001 PCB Card
Gas Tech DC071528 D-Guard Gas Rilevatore 57-1010
Remote Ocean Sistemi 52-26810-01 Colore Zoom Cam ROS 20-20
Stn Atlas GE3044G205 Interfaccia Marino Elettronico GE30044T20501B DS05-IMB
Measurement Technology LCI-90i Linea Controllo Strumento 7007
Oceantools PCB 37-200039-001 PCB Board 87-200038-001
M/D Totco FPB 219771-001 PCB Carta
RIDGID 700-T2 Potenza Guida Compatto Palmare Resistente Tubo Filettatura Machine
Bernard Quarto di Giro Elettrico Attuatore OAP
Honeywell CT5000 Circular Recorder Process Parameter Management
Honeywell CT5000 Circolare Registratore Processo Parameter Gestione
LSI LS450 Two Line Display Gray Wireless Controller
LSI LS450 Two Line Display Grey Wireless Controller
Panasia 773-LG-001 Dial Type Local Gauge
Panasia 773-LG-001 Quadrante Tipo Locale Controllo
Ross Hill Controls 0509-2600-00 Sprocket Slip Detector PCB
Penny Giles Controlli JC6000-GEN-1014 Joystick JC6000-XY-PUU-M-S-NL-N-STN-A3RB
Ross Hill Controlli 0509-2600-00 PignInfilare Rilevatore PCB
Penny Giles Controls JC6000-GEN-1014 Joystick JC6000-XY-PUU-M-S-NL-N-STN-A3RB
Dwyer Instruments 475-1-FM Series 475 Mark III Portable Digital Manometer
MSA PrimaX P 10112332 Toxic Combustible Gas Transmitter Flameproof Detector 9085
Hetronic RX14-HL HS-2 Casing IP65 5400
Hetronic RX14-HL HS-2 Casing IP65 100153A-E
MSA PrimaX P 10112332 Tossici Combustible Gas Trasmettitore Ininfiammabile
Hetronic RX14-HL HS-2 Involucro IP65 100153A-E
Hetronic RX14-HL HS-2 Involucro IP65 5400
Stromberg SWTM 1J1 PCB Card
Stromberg SWTM 1J1 PCB Scheda
Pro-Face GLC2400T-TFT Black Color Graphic Logic Controller
Aplab D36100C Two Channel Digital Storage Oscilloscope White
Stella Gamma ACC 0 609008210 V NR 58533 W 9533 GPV-E Gamma CPU Soren Module
LSI LS450 Two Line Display
Drew Marine 7613C Diesel Performance Analyzer Repeater Peli 1500 Case
ABB RDCU-02C Drive Control Unit 64607901
Oerlikon Turbovac TW 701 Leyb Vacuum 8257
S.A.T Systems DPM 72 02 Oxygen Analyzer Rack Panel Mount
Codan L-Band IF MBUC 40W C Band Block Upconverter 110-240VAC 6740-W/E-AC/EX-CE
Ulstein Marine Electronics A/S DC0033A Stepper Motor Driver 891026
Hawe Hydraulic AV22K2-12/24 PCB Card
Ocean Tools LTD 81-200018-001 PCB Card
LEPS Anchor Winch Load Displacement Monitor STARBOARD BOW
LEPS Anchor Winch Load Displacement Monitor PORT BOW
Liebherr Werk 0201-1-0088-2 Kraftmessachse/Load Pin
Sensy Portable Display For Strain Gauge Sensors INDI-PSD
Stella Gamma Acc 0 609008210 V Nr 58533 W 9533 Gpv-E Gamma CPU Soren Modulo
Marine Technology 500030 Spedizi Barche Remoto Joystick IP21 288 Nero
Aplab D36100C Due Canale Digitale ConservaziOscilloscopio Bianco
Pro-Face GLC2400T-TFT Nero Colore Grafico Logic Controller
Marine Technology 500030 Boats Remote Joystick IP21 288 Black
Danfoss ICAD600 Actuator For Transcritical Valves Silver
LEPS Ancora Manovella Carico Cilindrate Monitor PORT BOW
Oerlikon Turbovac TW 701 Leyb Vuoto 8257
ABB RDCU-02C Guida Unità di Controllo 64607901
Drew Marine 7613C Diesel Performance Analizzatore Ripetitore Peli 1500 Custodia
Liebherr Werk 0201-1-0088-2 Kraftmessachse/Carico Pin
Sensy Portatile Display Per TensiControllo Sensori INDI-PSD
S.A.T Systems DPM 72 02 Ossigeno Analizzatore Cremagliera Montaggio Pannello
LEPS Ancora Manovella Carico Cilindrate Monitor STARBOARD BOW
LSI LS450 Due Linea Display
MT Marine Technology LLC 500030 Remoto Joystick IP21 150
Ocean Tools LTD 81-200018-001 PCB Scheda
Hawe Hydraulic Av22k2-12/24 PCB Scheda
Ulstein Marine Electronics A/S DC0033A Motore Avvitatore 891026
Codan L-Band IF MBUC 40W C Tape Block Upconverter 110-240VAC 6740-W/E-AC/EX-CE
MT Marine Technology LLC 500030 Remote Joystick IP21 150
MSA Galaxy Altair5 Automated Test System
MSA Altair 5 With Integral Pump Automated Test System 0225
Kongsberg Simrad EM1002 EM System Remote Control Part No. 108-210952
Ametek 300-8790 Circuit Board
Ocean Tool MKII Camera Controller PWB 37-200035-001 Surface PCB Cd 81-200034-0
ifier KDM-2 Keypad For an NFS-640 Signal System Control Unit
Siemens A5E01154973-05-CS PCB Card
Danfoss ICAD600 Transcritical Valve Actuator Silver
Ocean Attrezzo Mkii Fotocamera Controller PWB 37-200035-001 Superficie PCB CD