PLC按结构分为整体型和模块型两类,按应用环境分为现场安装和控制室安装两类;按CPU字长分为1位、4位、8位、16位、32位、64位等。从应用角度出发,通常可按控制功能或输入输出点数选型。整体型PLC的I/O点数固定,因此用户选择的余地较小,用于小型控制系统;模块型PLC提供多种I/O卡件或插卡,因此用户可较合理地选择和配置控制系统的I/O点数,功能扩展方便灵活,一般用于大中型控制系统。
输入输出模块的选择应考虑与应用要求的统一。例如对输入模块,应考虑信号电平、信号传输距离、信号隔离、信号供电方式等应用要求。对输出模块,应考虑选用的输出模块类型,通常继电器输出模块具有价格低、使用电压范围广、寿命短、响应时间较长等特点;可控硅输出模块适用于开关频繁,电感性低功率因数负荷场合,但价格较贵,过载能力较差。输出模块还有直流输出、交流输出和模拟量输出等,与应用要求应一致。可根据应用要求,合理选用智能型输入输出模块,以便提高控制水平和降低应用成本。考虑是否需要扩展机架或远程I/O机架等。
PLC的供电电源,除了引进设备时同时引进PLC应根据产品说明书要求设计和选用外,一般PLC的供电电源应设计选用220VAC电源,与国内电网电压一致。重要的应用场合,应采用不间断电源或稳压电源供电。如果PLC本身带有可使用电源时,应核对提供的电流是否满足应用要求,否则应设计外接供电电源。为防止外部高压电源因误操作而引入PLC,对输入和输出信号的隔离是必要的,有时也可采用简单的二极管或熔丝管隔离。
由于计算机集成芯片技术的发展,存储器的价格已下降,因此,为保证应用项目的正常投运,一般要求PLC的存储器容量,按256个I/O点至少选8K存储器选择。需要复杂控制功能时,应选择容量更大,档次更高的存储器。
【..美国.. .AB ..1756系列,1785系列,1746系列,1747系列,1771系列】 【..瑞士.. .ABB.. 机器人 DSQC系列,ABB Advant OCS,ABB Procontic PLC CPU 】
【..法国....施耐德.. 140莫迪康昆腾系列处理器,内存卡,电源模块等。】 【..德国...西门子..Siemens MOORE,S5,S7,6DD等】
【..美国...通用电气..GE..IC693/IC697系列】 【..美国 ...Westinghouse(西屋): OVATION系统、WDPF系统、WEStation系 统备件。】
【 ..德国...Bosch Rexroth(博世力士乐):Indramat,I/O模块,PLC控制器,驱 动模块等。】 【..美国... Motorola(摩托罗拉):MVME 162、MVME 167、MVME1772、 MVME177等系列。】
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Baldor DC Motor W/Camco Rotary index and Camco Gear
Bal-Tec RCU 020 Rotary Control Unit Balzers Union
AV Automatic Valve L2003DBEDE-AA
AV Automatic Valve B8022-574-A
Automation Technologies Industries 7500 Production Type Conveyor Belt Controls
Automated Production Systems Inc.GC12 Tape Marker
Autoclave 30VM9002-SOGWO Engineers High Flow Needle Valves
Austria Solef PVDF-HP Reducing Tee elong 63/32 2”/1” PN16 Lot of 2
Austria Solef PVDF-HP 45o Elbow elongated 32 x 2.4 1” PN 16 Lot of 6
Austria Solef PVDF-HP 45o Elbow Da 90 3” PN20 AGRU
Austria Solef Polyvinylidene Fluoride PVDF-HP Stubflange 63x3.0 ANSI 2" Lot of 2
Austria Solef Polyvinylidene Fluoride 90o Bend 50x3.0 1 ? in PN16 Lot of 4
Austria Solef Polyvinylidene Fluoride 90o Bend 32 x 2.4 1” PN16 lot Lot of 4
Austria Solef High Purity Polyvinylidene Fluoride PVDF-HP Stub-Flange 110x5.3 4
Austria Solef High Purity Internal Adapter PVDF-HP 50 x 3.0 1 ? PN 16 NPT
Austria Solef Argu PVDF-HP Reducer Tee Elongated 90/63 3”/2” PN16
Austria Solef ARGU PVDF-HP End Caps da 90 63 2” PN20 Socket Welding
Austria Solef Argu PVDF-HP Flange Adapter Da 110 4” PN 20
Austria Solef ARGU PVDF-HP External Adapter 20 x 1.9 ?” PN 16 Lot of 2
Austria Solef Agru PVDF-HP StubFlange 32x2.4 1” PN16 Lot of 3
Austria Solef AGRU PVDF-HP Reducers elongated 75/63 2?”/2” Pn 16 Lot of 3
Austria Solef Agru PVDF-HP Reducers 63/50 2”/1 ?” PN16 Elongated Lot of 2
Austria Solef AGRU PVDF-HP Reducer 80mm x 90mm
Austria Solef Agru PVDF-HP Internal Adapter 32x2.4 1” PN16 Lot of 2
Austria Solef Agru PVDF-HP Flange Adapter da90 3” PN20 Socket Weld ANSI Lot of 2
Austria Solef Agru PVDF-HP End Caps 32x2.4 1” PN16 Lot of 2
Austria Solef Agru PVDF-HP End Cap Socket Da 50 1?” PN 20
Austria Solef AGRU PVDF-HP Blind Flanges “ANSI” da 63 2” Lot of 2
Austria Solef Agru PVDF-HP 90o Bends 1 ?” PN 16 50x3.0 Polyvinylidene Fluoride
Austria Solef Agru PVDF-HP 45o Elbow Elongated 63x3.0 2” PN 16 Lot of 4
Austria Solef Agru Polyvinylidene Fluoride PVDF-HP Internal Adapter 63x3.0 2"NPT
Austria Solef AGRU PVDF-HP Reducers elongated 90/63 3”/2” Pn 16 Lot of 2
Austria Solef Agru PVDF-HP Reducers 50x32 1?”/1” PN16 Elongated Lot of 6
Austria Solef Agru PVDF-HP External Adapter 63mm Length
Austria Solef Agru PVDF-HP End Cap 50x3.0 1?” PN16 Lot of 2
Austria Solef Agru PVDF-HP Eccentric Reducer 80x63? Lot of 2
Austria Solef AGRU PVDF-HP Blind Flanges 9 inch OD
Austria Solef Agru PVDF-HP 90o Elbow elongated 1 ?” PN 16 Lot of 5
Austria Solef AGRU PVDF-HP 45o Elbow 50 x 3.0 1 ?” PN 16 elongated
Austria Solef PVDF-HP 90o Bend 110x5.3 4” PN 16 AGRU
Austria Solef Agru PVDF-HP Tees 32 x 2.4 1” PN 16
Austria Solef Agru PVDF-HP Eccentric Reducer 63/50 2”/1?” PN16
Austria Asahi America Eccentric Reducer 4 x 3, H-Purity Polyvinylidene Fluoride
Austin Scientific Helium Compressor M125
Atkomatic Valve Co Solenoid Valve 8100
ATI 2-Wire Transmitter B12 O3 Ozone Gas Sensor
ASML/SVG PHOENIX CONTACT CIRCUIT MODULE 4022.472.0772
ASML/SVG PHOENIX CONTACT CIRCUIT MODULE 4022.472.0770
ASML/SVG Module 4022.437.1996
ASML/SVG Maxon DC Motor 44.025.000-00.09-130 S/08
ASML/SVG Lithograph System Microscan II 859-9493-006
ASML/SVG Laser Head 4022.435.6796 1135P-2478
ASML/SVG Kniel Power Supply 4022.436.7932.1
ASML/SVG Kniel Power Supply 4022.436.64441
ASML/SVG Jenoptik Jena Lens Lot of 10
ASML/SVG Entegris 4022.472.59471 New
ASML/SVG Controller 4022.470.0165
ASML/SVG Cable 4022.436.47581
ASML/SVG ATWT 4022.484.96532 Coil Limms ASSY
ASML/SVG Art Remote Control Box Assy ARCB
ASML/SVG Agilent Z4203B HPLR Laser
ASML/SVG 923-8244-001 Power Supply SMC
ASML/SVG 879-0352-006 Lithography System Inc
ASML/SVG 865-8009-001-B Stage Decoupling/Over Current
ASML/SVG 859-2947-003-B 859-3790-004
ASML/SVG 859-1510-002
ASML/SVG 859-0984-004A
ASML/SVG 859-0984-002A Current Drive Board
ASML/SVG 859-0984-002A
ASML/SVG 859-0929-006B Stage Decoupling/Over Current
ASML/SVG 859-0929-006A Stage Decoupling/Over Current
ASML/SVG 859-0928-007A A1304/A1305
ASML/SVG 854.0191.002 Optical Beam Splitter Cube Prism
ASML/SVG 854-8089-002C Perkin-Elmer Assy
ASML/SVG 851-9828-003 With part number 79126-008
ASML/SVG 851-8877-002C Perkin-Elmer Assy A1302
ASML/SVG 851-8294-002 Cable Assy C Force Sensor
ASML/SVG 4022.630.42546 Drive Rod Assy
ASML/SVG 4022.502.29089 Emission Detection Assy V.L
ASML/SVG 4022.502.28228 21M Subfab HSL Fib
ASML/SVG 4022.502.25439 Function 2-3-5-6-7-12 Kay Lith.
ASML/SVG 4022.488.0615.1 Hor. Geophone / OYO GEOSPACE GS-11D
ASML/SVG 4022.488.0614.1 Ver. Geophone
ASML/SVG 4022.486.04192 ATWT HALB MAGNET PLATE CAS TP
ASML/SVG 4022.481.81541 Site Dep. Parts AT-T
ASML/SVG 4022.480.6589 Sensor
ASML/SVG 4022.480.62611 Sensor Technics
ASML/SVG 4022.477.4843 CCM Elev. Break Override Switch
ASML/SVG 4022.476.01231 Puls Power Supply
ASML/SVG 4022.476.01051 Kniel Power Supply
ASML/SVG 4022.476.01041 Puls Power Supply
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ASML/SVG 4022.471.6782 AT IM SHUT/VA RP Board
ASML/SVG 4022.471.6660 SEU Power Unit
ASML/SVG 4022.471.6651 AT IM Projection Board
ASML/SVG 4022.471.6607 AT IM ZZA T1100 RP Board
ASML/SVG 4022.471.6341 AT IM ISB2-3 RP Board
ASML/SVG 4022.471.6319 Interlock Board
ASML/SVG 4022.471.6292 AT IM REM RES. RP Board
ASML/SVG 4022.471.6285 AT IM MHB ACT RP Board
ASML/SVG 4022.471.6282 AT IM MC3 RP Board
ASML/SVG 4022.471.6279 AT IM MC2 RP Board
ASML/SVG 4022.471.6276 AT IM MC1 RP Board
ASML/SVG 4022.471.6264 AT IM SPU RP Board
ASML/SVG 4022.471.6146 AT IM Unicom NA Board
ASML/SVG 4022.471.6144 AT IM BSU RP Board
ASML/SVG 4022.471.6143 AT IM REMA2 RP Board
ASML/SVG 4022.471.5969 AT LIMMS Safety B-Spec
ASML/SVG 4022.471.5673
ASML/SVG 4022.471.5457 Power Amp. Controller
ASML/SVG 4022.471.5027 TCB Syncbus Trigg
ASML/SVG 4022.470.7000
ASML/SVG 4022.470.6999
ASML/SVG 4022.470.6469 Motorola MVME 2431
ASML/SVG 4022.470.4376 IL OB Controller
ASML/SVG 4022.470.1998 SHB MDC 4022.470.4359
ASML/SVG 4022.455.8592.2 Airbearing WS Stone BoTech
ASML/SVG 4022.455.48171 W-F-9-6
ASML/SVG 4022.455.48161 W-F-V-6
ASML/SVG 4022.455.2076
ASML/SVG 4022.455.18031 Cover Bottom Module
ASML/SVG 4022.455.09512 HF-LSM-Rz
ASML/SVG 4022.454.6646 Variable Attenuator Assy.
ASML/SVG 4022.454.66104 Coarse P.A. II Assy.
ASML/SVG 4022.454.59231 Beam Steering Fixed Mirror
ASML/SVG 4022.454.1087
ASML/SVG 4022.454.1086
ASML/SVG 4022.437.2886
ASML/SVG 4022.436.8604
ASML/SVG 4022.436.74321 Kniel Power Supply
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ASML/SVG 4022.436.6376.4 Master
ASML/SVG 4022.436.5270 IIB Board
ASML/SVG 4022.436.5085
ASML/SVG 4022.436.4492
ASML/SVG 4022.436.4170 Short Stroke Amplifier CTF
ASML/SVG 4022.436.1461
ASML/SVG 4022.436.1074 Board T1
ASML/SVG 4022.435.24401 KV Automation Sensor Amplifier
ASML/SVG 4022.431.20761 Cold Light Mirror 365
ASML/SVG 4022.430.1239 HP Agilent 10895A VMEbus Laser
ASML/SVG 4022.428.1601 4022.430.0520
ASML/SVG 4022.428.14901 Rev. C
ASML/SVG Optical Item 854-0141-001
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