福建中立恒自动化设备有限公司
目前,世界上有200多个厂家生产可编程序控制器产品,厂家有德国的西门子,美国的Rockwell(AB)、通用(GE),日本的三菱、欧姆龙,法国的施耐德等。
可编程序控制器总的发展趋势是向高集成度、小体积、大容量、高速度、易使用、高性能方向发展。具体表现在以下几个方面:
(1)向小型化、专用化、低成本方向发展
20世纪80年代初,小型PLC在价格上还高于小系统用的继电器控制装置。随着微电子技术的发展,新型器件大幅度的提高功能和降低价格,使PLC结构更为紧凑,功能不断增加,将原来大、中型PLC才有的功能移植到小型PLC上,如模拟量处理、数据通讯和复杂的功能指令等,但价格不断下降,真正成为继电器控制系统的替代产品。
(2)向大容量,高速度方向发展
大型PLC采用多微处理器系统,有的采用32位微处理器,可同时进行多任务操作,处理速度提高,特别是增强了过程控制和数据处理的功能。另外,存储容量大大增加。
(3)与计算机联系密切
从功能上看,PLC不仅能完成逻辑运算,且计算机的复杂运算功能在PLC中也进一步得到利用,从结构上看,计算机的硬件和技术越来越多地应用到PLC;从语言上看,PLC己不再是单纯用梯形图语言,而且可用多种语言编程,如类似计算机汇编语言的语句表,甚至可直接由计算机语言编程;在通讯方面,PLC与计算机可直接相连并进行信息传递。
(4)发展多样化
可编程序控制器发展的多样化体现在3个方面:产品类型、编程语言和应用领域。
(5)模块化
PLC的扩展模块发展迅速。功能明确化、专用化的复杂功能由专门模块来完成。主机仅仅通过通讯设备向模块发布命令和测试状态,这使得PLC的系统功能进一步增强,控制系统设计进一步简化。
(6)网络与通讯能力增强
计算机与PLC之间以及各个PLC之间的联网和通讯的能力不断增强,使用工业网络可以有效地节省资源、降低成本、提高系统可靠性和灵活性,致使网络的应用有普遍化的趋势。
(7)多样化与标准化
生产PLC产品的各厂家都在大力度地开发自己的新产品,以求占据市场的更大份额。因此产品向多样化方向发展,出现了欧、美、日多种流派。与此同时,为了推动技术标准化的进程。一些国际性组织,如国际电工委员会(IEC)不断为PLC的发展制定一些新的标准,如对各种类型的产品作一定的归纳或定义,或对PLC未来的发展制定一种方向或框架。
(8)工业软件发展迅速
与可编程序控制器硬件技术的发展相适应,工业软件的发展非常迅速,它使系统应用更加简单易行,大大方便了PLC系统的开发人员和操作使用人员。
可编程序控制器的输出信号类型可以是开关量、模拟量和数字量。输出单元从广义上分包含两部分:一是与被控设备相连接的接口电路,另一部分是输出的映像寄存器。
PLC运行时CPU从输入映像寄存器读取输入信息并进行处理,将处理结果放到输出映像寄存器。输出映像寄存器由输出点相对应的触发器组成,输出接口电路将其由弱电控制信号转换成现场需要的强电信号输出,以驱动电磁阀、接触器、指示灯等被控设备的执行元件。
Jetter PASE-E/E-GRU 85-264v-ac 47-440hz Power Supply Rack
Control Techniques 960501-10 240v-ac 240v-ac 3ph Servo Drive
Sdyne HO08UT09DB High Speed Direct Drive Pump
Nireco PC300 Paper Checker 100-240v-ac
Rei Electric RP50-363 Valve Closure Slave Module
Keyence GL-R87F-T GL-R87F-R Light Curtain Set 24v-dc
Autotech Controls PLS SAC-M1052-010 Programmable Limit Switch
Schmersal SLC440COM-ER-1450-14 Light Curtain Emmiter Receiver Set 1450mm 24v-dc
Sylvania 713UPDG76 Ac Pneumatic Timing Relay 120v-ac
Joslyn Clark PMT Ac Pneumatic Timing Relay 110-120v-ac
Southeast Pump Specialist 2196-STX Pump Power End
Eaton 92-00320-07/09-00150 Panelmate Iii Operator Interface Panel 1ph 117v-ac
Dexter CG-50 Valve Reseater Kit
NA Mn59 Steel 4-vane Impeller 17-1/2in
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Eaton 37C1270G103 Pole Replacement Kit
Coorstek 1798960 Ceramic Insulator
Videojet 1520 392103-202-01 Ink Jet Coding Machine 1ph 90w 100-120/200-240v-ac
Na 2112525-2 Cf8m Ss 4-vane Impeller 18-3/4in 2-3/4in
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Dodge TXT225T Torque-arm Speed Reducer 8.42hp 23:46
Mitsubishi HF303BS Servo Motor 3ph 3kw 2000rpm 184v-ac
Lenze SM004S Ac Tech 120v-ac 0-240hz 0-230v-ac 0.33hp Ac Vfd Drive
Abb FAU810 Flame Analysis it 24v-dc
Nexen 933500 Spring/air Bd Caliper Brake
Leeds Northrup 257-30-000-10-01-0146-6 Chart Recorder
Rosemot 8732EMT2A1M4 870SASB030C1M0B3 Magnetic Flow Meter 3in 12-42v-dc
Extrel 813204 Flanged Mass Spectrometer Gas Analyzer Filiment
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General Electric Ge 117D7314G1 Ref Mon/mtch Logic Pcb Circuit Board
Allen Bradley 1756-L71 Controllogix Processor Module
1 Allen Bradley 1756-L71 Controllogix Processor Module
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Marposs 3427848426 Measuring Head Sensor
Thermo Environmental Gas Analyzer
Toshiba VT130G7U4270B G7 Ac Vfd Drive 460v-ac 25hp
Nitto Seiko FF503H-D2P Feedmat Screw Feeder
Chromalox TMS-06-014P-E1XX Immersion Heater 42-1/2in 14kw 460v-ac
Nsk W4006-771ZX-C5Z20 40mm 30in Ball Screw
Crouse Hinds DBR51742WT1003 Arktite Interlocked Receptacle 4p 3w 100a 600v-ac
Endress Hauser 80F25-7VV3/0 80F25-AAASAARCBAAA Promass F Flow Meter 1in
Mitsubishi HA-SH352B Servo Motor 3ph 3.5kw 2000rpm 135v-ac
Fanuc A06B-0247-B400 Servo Motor 3ph 4kw 3000rpm 22nm 200-240v-ac
Magnetrol 7AT-63K0-A10-20-032/706-512A-310 Radar Level Sensor
Centurion 3x4-13 Stainless Centrifugal Pump Casing Case
Ahlstrom 144211014B Stainless Casing For Mca32-6 Pump
Appleton LPCL1575GMT Mercmaster Ii Light Fixture 150w 120/208/240/277v-ac
Nsk W3610-275D-C3Z12 Ball Screw 36mm 1054mm
ListingGoulds 259-110-1203 3175l 10x12-22 Stainless 4-vane Pump Impeller 20-3/4in Dia
Sulzer AT0299767 Mce32-100-v Pump Impeller 440mm Od
Gates 8/5V1900 Super Hc Powerband V-belt 190in 5-1/4in
Fisher V200 1051 3610j Vee-ball Pneumatic Stainless Control Valve 3in 150
1 Fisher V200 1051 3610j Vee-ball Pneumatic Stainless Control Valve 3in 150
Summit 2196 3x4-10 Cd4 Stainless Centrifugal Pump Casing Replaces Goulds 3196
Emerson ZP83KCE-TFD-950 Copeland Scroll Compressor 460v-ac 3ph 45bar
Dezurik VPB 9674083 Blx V100 Pneumatic Stainless Flanged Control Valve 3in 150
Fisher EZ 657 3582g Pneumatic Steel Flanged Control Valve 1in 300
Grdfos MTR5-8/5 A-W-A-HUUV A98892698P115280001 Multi-stage Pump 380-480v-ac
Impco 600HI02186 212 Titanium Hi-shear In-flow Mixer Rotor
Parker RS32B-DNNPS Stepper Motor 3.9a Amp 194w 1500rpm 170v-dc
Stainless 4-vane Pump Impeller 19in Od Replaces Goulds 3175l 10x12-22
Mitsubishi FR-A820-5.5K-1 Inverter Vsd/vfd 200-240v-ac 0.2-590hz
Hrc A-10007 Oxyprobe Gas Sensor
Keyence SV-010L2 Servo Drive 200-230v-ac 0-230v-ac 3ph 100w
Sanyo Denki QS1W05AM0XXXXC17 12w 200-230v-ac 280v-dc 3ph Servo Amplifier
General Atomics 332-0000-4C Log Linear Current Channel Module
General Atomics 332-0000-4 Log Linear Current Channel Module
Jamesbury 7150313600XTZ2 Metso B1ju8/35l Blx V100 Stainless Control Valve 1in
General Electric Ge B30TG3HLHF8NH6TL8NN6TS8NU6TWXX Differential Relay
Nexen 965310 Spring/air Flange Moted Brake 120psi
Neles R11l-b02-ccjdv B1cu 6/15 Nd822/s1 Stainless Wafer Control Valve 2in 300
Allen Bradley 440L-P4K1280YD Light Curtain Pair 1280mm 24v-dc
Omron MSF4800A-30-1240-X Light Curtain Transmitter 1240mm 24v-dc
Eaton SCH0640968 Mcc Breaker Feeder Bucket 50a Amp
Accu-sort 1000068395 Accuvision Av6010 Rangefinder Module
Rosemot 8711FHA030L1N6 Magnetic Flowtube Wafer 3in 40v-dc 740psi
Dumont Minuteman Keyway Broach Set 1-7/16 To 1-15/16
Cutler Hammer 9800 ITROL Motor Control Center 30a Amp 3w 480v-ac
General Electric Ge CR309C002AKA Size 1 Multi-speed Starter 115-120v-ac 10hp
Square D KA36225MT Med Case Circuit Breaker 3p 225a Amp 600v-ac
Eaton A210M1CAC Size 1 Reversing Starter 120v-ac 10hp
General Electric Ge CR309C002BAA Size 1 Reversing Contactor 115-120v-ac 10hp
Heidenhain UM 121BD Power Converter
Aea Automatic Systems Laboratories B550 Metal Block Calibrator 35-550c
Rosemot 8705THA020C1W0N0 Magnetic Flow Meter 40v-dc 2in 150
Kkle 171S-H01-MG Stainless Relief Valve 1196gpm 10psi 2in Npt
Bently Nevada 3500/33-01-01 16 Channel Relay Module
Lti Motion LSP04-004-048-60-0PR1PY17E0440 Servo Motor 150rpm 13.2nm 48v-ac
Fisher DVC6200 Fieldvue Electro-pneumatic Valve Positioner 145psi 4-20ma 30v-dc
1 Fisher DVC6200 Fieldvue Electro-pneumatic Valve Positioner 145psi 4-20ma 30v-dc
Festo HGPP-20-A Parallel Gripper
Marsh 10076-02.2 3007/02-007C Pcb Circuit Board
Allen Bradley 1747-L551 Slc 500 Cpu Processor Module Ser D
Allen Bradley 1747-L551 Slc 500 Cpu Processor Module Ser D
Fisher DVC6200HW2 Fieldvue Valve Positioner 145psi 4-20madc 30v-dc
Rexroth 2779036540 277-0/80-0850-M40-S00-BL0000W-0 Linear Actuator 80mm 850mm
Allen Bradley 801-ASC1415 Roller Lever Limit Switch 600v-ac/dc
Fisher V150 3610j Vee-ball Pneumatic Stainless Flanged Control Valve 3in 150
Allen Bradley 6180-ADDDFLACCZZ Operator Interface Panel
Azbil MC9-01L3-3Y177-JC0 Micron-lub Lubrication it 24v-dc
Tsudakoma RNA-160R Machine Vise Nc Rotary Table
Allen Bradley 509-eod 1494f-d200 Centerline2100 Size 4 Starter Mcc 120v-ac 100hp
Iai RCP2-SA7R-I-56P-16-250-P1-R07-ML Robo Cylinder Linear Actuator
Ge F35TG3HLHF8LH6GMXXP6TU6GWXX Multilin F35multiple Feeder Management Relay
Ge T60TG3HLHF8LH6NM8LP6TU6NWXX T60 Transformer Management Relay
odrive MDX60A0220-503-4-00 MDX61B0220-503-4-0T Movidrive Ac Vfd Drive
Allen Bradley 20F11ND052AA0NNNNN Ac Vfd Drive 432-528v-ac 0-400hz 0-460v-ac 40hp
1 Allen Bradley 20F11ND052AA0NNNNN Ac Vfd Drive 432-528v-ac 0-400hz 0-460v-ac 40hp
General Electric Ge Druck DPI611-07G Hand Held Pressure Calibrator
Rosemot 8800DF010SA1N1P1E5 Turbine Flow Meter 1in 10.8-42v-dc
Fisher 3621JP Electro-pneumatic Valve Positioner Assembly 4-20ma 3622
Westinghouse MD-510 857D505G02 Dc Contactor 100v-dc
Tokyo Keiki COM-5-2C-70-PH3-30 Hydraulic Directional Control Valve 24v-dc
Telesis TMM4200 Pinstamp Marking System
Tokyo Keiki COM-5-33C-70-CH-10 Hydraulic Directional Control Valve 20.6mpa 24vdc
Ga Industries 7600-D1 Pump Director Board 120v-ac
Tokyo Keiki COM-3-33C-10-CH-11 Tokimec Hydraulic Directional Valve 24v-dc
Mitsubishi FR-E520-3.7K-NA Ac Vfd Drive 200-240v-ac 0.2-400hz 200-240v-ac 5hp
Square D H362AWC Fusible Disconnect Switch 3p 60a Amp 240/480/600v-ac
Square D H362AWC Fusible Disconnect Switch 3p 60a Amp 240/480/600v-ac
Fisher V150 Vee-ball 1052 Size 33 Pneumatic Stainless Control Valve 2in 150
Gardner Denver 91424AAO Radial Piston Air Motor 3hp
Eaton PXM2250TA65115 Power Xpert Meter 2000 10va
Schk SVP-2 Tribos Clamping Device
Viking AL4195 Internal Gear Pump 3in Npt 115gpm 250psi
Vickers OPGL Optk25 Hpp5500-ldi1221s Pneumatic Steel Control Valve 2in 300
Fisher V150 1052 3610t Pneumatic Stainless Flanged Control Valve 150 3in
Ge Fanuc IC660BBA020P Genius 24/48vdc Analog Term Module
Abb SPNPM22 Symphony Plus Network Processing Module
Harmonic Drive CSF-25-80-2A-GR-SP Component Gear Set
Ge T60TG3HLHFXXH81MXXP6TU6NWXX Multilin T60 Transformer Management Relay