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
Kukko Puller Separator With 21-90 Internal Extractor
Parker B203R Poppet Valve
Parker B203R Poppet Valve #2
Magnaflux Y-1Magna Flux AC Electromagnetic Yoke Magnetic Particle Flaw Detector
PROXIMITY CONTROLS 451VE6-B MARK 4 THRU SHAFT DRIVE 4-20mA TRANSMITTER SWITCH
Myron L TPH1 TechPro II pH/Conductivity/TDS/Temperature Meter
Stahl 8625/1-60 TUV06 Atex 553116 Ex P Control Unit
Sauter Electric Servomotor HD60 D2 30NM
Dynafor 1203017Y Max 10T Load Indicator
Williams Milton Roy PO3-6S Pneumatic Relay
Parker Compensator: PVCRER2N1
Atos RZMO-A-030/315 Hydraulic Solenoid Valve
Sensy 5300 Standard Load Pin - Capacity - 100kN - Output - 12.31mA
Vickers 02-104838 Rampe Generator - EHA-RMP-201-A-20
NOV Initiator W/5M Cable For Knuckle Boom Crane
Norgren L22-405-OPDA Oil-Fog Lubricator 1/2'' NPT
TESCOM 54-2266D212S Hydraulic Pressure Regulator 3/4" Pin: 8000 Psi:6000
Moog 1481-100-069/27 Solenoid Actuator
Riken Keiki SD-705RI Gas Detektor Kopf
POWER-GENEX PPL-A2S3TN PNEUMATIC POSITIONER
Grundfos UPS-4040 E 250 Model:C P/N 54Z10011
Vickers 02-104839 Signal Converter - EHA-CON-201-A-20
Proximity Controls 451VE6-B Mark 4 Thru Drive Shaft 4-20mA Transmitter Switch
Flomec Trimec OM004H513-221R3 Electronic Flow Meter FRT121D0MM-I/400-Bar
Matsushita em-dz9 4p 50w electric motor
Flomec Trimec OM004H513-221R3 Electronic Flow Meter FRT121D0MM-I/
Slater Controls MR7EF07-30VPTXHT Electric Valve Actuator Motor
Parker B203R Doll Valve #2
Dynafor 1203017Y Max 10T Charge Indicator
Sensy 5300 Standard Charge Pin - Capacitance - 100kN - Power - 12.31mA
Vickers 02-104838 Ramp Generator - EHA-RMP-201-A-20
Norgren L22-405-OPDA Oil-Fog Oiler 1.3cm Npt
Lee Dickens Ltd.81NC-1630 Series 81 Power Supply
MOOG 1481-100-069/27 Solenoid Actuator Motor
Riken Keiki SD-705RI Gas Detector Head
Grundfos UPS-4040 E 250 Model: C P/N 54Z10011
Lincoln Solenoid Valve 525-32085-1 3/8- 24 Vdc
NOV initiator W/5M cable for ankle protection boom crane
Sauter Electric Servo Motor HD60 D2 30NM
Metrix Vinration Switch 5550-311-04 15A 480V 1/8HP
Magnaflux Y-1Magna Flux AC Electromagnetic Yoke Magnetic Particle Error
Fireye 45RM4-1000 24V Dc Flame Scanner
Rivertrace Replacement Smart Cell Bilge Oil Content Monitor
Vanne De Commande Directionnelle Hydraulique Parker 3-3194-1 93617 CYL-2 Elyria
CEE ITV7366 Three Pole Over Current Relay(60Hz-UN100V)
Frank W.Murphy DF-755EX Hydrostatic Pressure Switch - Explosion Proof
JRC PC4402 CED-34-J H-7PCRD1256E PCB Card
PROTO J6476 1/2-Inch Drive Electronic Torque Tester, 7.6-76.2m-Lbs
Honeywell Micro Switch Ex-Ar800 Explosion Proof Limit Switch
Siemens 7MH4 710-5BA Siwarex Ist Exi - Interface
Hawe SLF5-A5 L 80/80 A250 B250 /EA-G24 Hydraulic Valve Section Manual
Bailey SEREG S.A PYROMAT 320 S D32SAC11-1-18A8
Terasaki EMW-1201 Printed Circuit Board
Mcl marinex c2003 pcb card
Prominent Dulcometer Dialog Controller DACA00613000000010EN
Williams PO3-6S Pneumatic Relay PO36S
Scana Control System MEF 400
MGE CHAN 34001178XD-4BA BOARD
Frank W. Murphy DF-755EX Hydrostatic Pressure Switch - Explosion Proof
JRC Hydrostatic MPXL00850 Hydrostatic Release
Carter Motor Company CSA1840E 115V DC 1800 RPM 1/40 HP
RIVERTRACE REPLACEMENT SMART CELL-BILGE OIL CONTENT MONITOR
Pathway E200 Electric Level Control Switch WP - 275Psig -40 To 392 ℉
MSA Ultima XE A-ULTX-PCB-E-E-1-0-0-0 Gas Monitor Board
Kelly Valves Repair Kit G499RK for Kelly Valves - Safety Valve
MUSASINO CO., LTD MEW-113 MARITIME PCB CIRCUIT
Wabco 346 002 500 2 pcb card
Proto J6476 1/2-Inch Drive Electronic Torque Tester, 25-250 Ft-Lbs
servi 5STB44220J80.2AK Hydraulic Automation Relif
Tenf Jord Mak Verksted Steering Gear Card 5801-OC149A Electronic PCB Circuit
Siemens 7MH4 710-5BA Siwarex IS Exi - Interface
Terasaki EMW-1201 PCB
MSA Ultima Xe A-ULTX-PCB-E-E-1-0-0-0 Gas Monitor Plate
Pathway E200 Electric Level Control Switch Wp - 275Psig -40 Sich 392°F
Kelly valves repair kit G499RK for safety valve
Musasino Co Ltd MEW-113 Maritime PCB Circuit
Tenf Jord Mak Verksted Steering Gear Card 5801-OC149A Electronics PCB Circuit
MGE CHAN 34001178XD-4BA Plate
Prominent Dulcometer Dialog Control - DACA00613000000010EN
HAWE Slf5-a5L 80/80 A250 B250/Ea-g24 Hydraulic Valve Range Manual
Summit electronics HPH-1300-0270A Position Sensor
Consilium Salwico CS3000 GSM3150 GPM-4 R3 Control Panel Of Fire Detection System
Amot Model B Thermostatic 3-Way Control Valve 1.5BOCU11501-00-AA
Steinel HG4000E Type 3502 Nsmp
CEE ITV7366 Three Pole Over Current Relay (5A-60Hz-UN100V
8928665 Ventil Assy Gov.Betriebssystem Magnetspulen
Rexroth R978905565 Directional Valve
Cee Relays TTG7123
Rexroth VT1118-10 Analog Module
Selco T4500-01 Auto Synchronizer Relay T4500
PR 4222 Universal I/F Converter
Hoop Rotterdam 0001-747063
ASCO JOUCOMATIC 15600081 globe valve DN/Size 25 MM
Selec Rc2108 Rpm Indicator 90 TO 270 VAc/Dc
Appleton N2LED0T1
Laserliner Videoflex G3 10M Endoscope Fiberscope Inspection Camera
K.K. E.I System 1630a11
Johnson Controls V46BD-4 Water Regulating Valve V46BD4
Woojin Servo Meister RH8PF25-22-HI Reversible Servo Motor 220V 1250/1550 RPM
OSRAM Xbo 3000w / HTML Ofr 3000W Cinema Film Projection Lamp
Hunt Engine MS2-24 Moisture Sensor
Heinzmann Hand-Held Programmer 2 PG 02 SN.450899
Mak 9.01.7-91.51.00-04 pcb card
Mobrey Air Pilot Valve SO1AMA/F104/1 AIR PILOT VALVE Max Suppy 7 bar
MD TOTCO 40225886-001 DUAL AXIS INCLN ASSY
SMC IP5000-030 Positioner
Naval Impianti NHI/-06-E Valve Postion Indicator
POWER CONTROL SYSTEMS SQ486-3F-400-500-AL UNMP
De Hoop Rotterdam 0001-747063
Osram XBO 3000W/HTP XL OFR 3000W Cinema Film Projection Lamp
Laserliner VideoFlex G3 10 m Endoscope Fiberscope Inspection Camera
k.k k.e.i system 1630a11
Omron XC5A- Sensitivity Ma - 3497588-9A
GE FANUC 10 SLOT PROGRAMMABLE CONTROLLER 8M89 E157515
Rexroth Aventics 3460565550 Ep Converter Regulator
8928665 VALVE ASSY., GOV. OPERATING SOLENOID
Parker 29574100 Pneumatic Air Heavy Duty Pendant Remote Control For Winch
Parker D3P1C2N-30 Oil Operated Directional Control Valve - D3P Series
Kongsberg Glb-91 Side B 7212-242.0000 Electronic Unit
Weishaupt HDK 60 S07 Head Sl With Stoppage Ec 111 381 10 09/2 - 160 C -30 Bar
8928665 VALVE ASSY GOV. OPERATING SOLENOID
Parker 29574100 Pneumatic Air Heavy Duty Trailer Remote Control For Winch
Parker D3P1C2N-30 Oil Powered Directional Control Valve - D3P Series
Weishaupt HDK 60 S07 Head SL With Stoppage EC 111 381 10 09/2 - 160 C -30 Rod
Omron XC5A- Sensitivity Ma-3497588-9A
GE Fanuc 10 Slot Programmable Control - 8M89 E157515
Kongsberg GLB-91 Page B 7212-242.0000 Electronic Unit
Heinzmann Hand Held Programmer 2 Pg 02 SN.450899
Mobrey Air Pilot Valve So1ama/F104/1 Max Suppy 7 Rod
MD TOTCO 40225886-001 Doppel Achse Incln Assy
Naval Impianti Nhi 06-E Valve Position Indicator
k.k.e.i system 1630a11