描述
AS-I网——传感器和执行器通信的国际标准,扫描时间5ms,传输媒体为未屏蔽的双绞线,线路长度为300m,最多为31个从站。
PROFIBUS——工业现场总线,用于车间级和现场级的国际标准,传输率最大12m/s,传输媒体为屏蔽双线电缆(最长9.6km)或光缆(最长90km),最多可接127个从站。
工业以太网——用于区域和单元联网的国际标准,网络规模可达1024站1.5km(电气网络)或200km(光学网络)。
在这一网络体系中,尤其值得一提的是PROFIBUS现场总线,PROFIBUS是目前最成功的现场总线之一,已得到广泛地应用。它是不依赖生产厂家的、开放式的现场总线,各种各样的自动化设备均可通过同样的接口交换信息。为数众多的生产厂家提供了优质的PROFIBUS产品,用户可以自由地选择最合适的产品。PROFIBUS已经成为德国国家标准DIN19245和欧洲标准pr EN50170,并在世界拥有了最多的用户数量。
四、PLC与工业控制计算机(IPC)和集散控制系统(DCS)的比较
Leybold Pump P/N 590 29113 from Leybold Ultratest F
Millipore Waferpure Megaline Cat No. WPLV202SI
NGK Ultra High Purity Water Manifold Valve Model CB-573
IAS Integrated Air Systems Fan Filter Hepa Filter Unit
Nanometrics Power Distribution Assembly
Nanometrics High Resolution Video Amplifier w/ Monitor
Intermec 3400 Bar Code Label Printer
Aera FC-7800CU Mass Flow Controller MFC
HAAKEL~ Temp Ciculator Constant Bath No. 040087, USED
Varian Burnout Heater Controller Model BOH-2, NEW
Stabiline Heavy Duty Voltage Regulater (modified) USED
Tocho- Ultra Sonic Cleaner, UP-605-100PC, NEW
Varian M/C Leak Check Plate 13-3/4″ Diameter ***New***
NTA Industries Cleanroom Cart Model: 5525C21
Hewlett Packard 800/G50 9000 Server
Alcatel ADP 80 W Vacuum Pump
CLIMET Multi-Port Sampler CI-330-10
Watkins Johnson (WJ) Optical Sensor Interface NEW
Tylan General 4 Chamber Controller (w/ watlow 965)- NEW
VAT Mini UHV Gate Valve P/N: 01032-KE11-0001/0010
CCI Systems Electrical Dist. Box 208V, 50A, 3-Phase
CCI Systems Electrical Dist. Box 208V, 25A, 3-Ph (1597)
Nanometrics Power Supply / Interface Box
Nanometrics Dual Power Distribution Unit
SQUARE D Circuit Breaker w/ Shunt Trip KAL-36175-1021
INTERMEC Trakker Handheld Terminal – Model 9440 *NEW*
IDC Electric Cylinder Control Model: H3851 **NIB**
CCI Systems Electrical Dist. Box 208V, 50A, 3-Phase
CCI Systems Electrical Dist. Box 208V, 50A, 3-Phase
TEGAL Electrical Dist. Junction Box 208V, 50A, 3-Phase
TEGAL Electrical Dist. Junction Box 208V, 50A, 3-Phase
CCI Electrical Dist. Junction Box 208V, 50A, 3-Phase
TEGAL Electrical Dist. Junction Box 208V, 25A, 3-Phase
CCI Electrical Dist. Junction Box 208V, 50A, 3-Phase
TEGAL Electrical Dist. Junction Box 208V, 40A, 3-Phase
TEGAL Electrical Dist. Junction Box 208V, 25A, 3-Phase
Leybold Pump Station Housing WS1001-100P
Terra Universal WIP Rack Stainless Steel Cleanrom Table
MKS Control Valve Type, 6 Inch Diameter Ring, NIB
Heater Elements for Kimmon DI Water Heater(LOT OF 6)
Retrofit Kit for NOAH Wetsink Dual Asperator Manifold
Edwards 1400 S1400 Dry Star Vacuum Pump Controller
VAT Gate Valve 6″ ID P/N F34889-01
Toshiba/Houston Tosvert-130g2 Transistor Inverter-USED
Spectra Physics Freedom Retail Bar Code Scanner
Pentagon Technologies UHV Tin Shield Cover 0020-23045
MDC 1 1/2″ Inline Valve Model KIV-150-P-SP
GL Automation Wafer Flat Aligner Model AWA6F6SP *NIB*
Leybold WSU250 Vacuum Pump, Parts Pump
Silicon Valley Group 88 Series Robot S.V.G.
Silicon Valley Group SVG Track Module 88 Series
Asyst Fan / Filter Assembly P/N C0094-0948
Spin Rinse Dryer Semitool 270 Part
Ebara Vacuum Pump Model 50X20
Optical Sensor Interface Board AII-CPU-03 9ECU-101A
Osaka Vacuum Ltd. Heater Controller REX-C100
Filter Pump Industries Model PM-1/2 RPM 1/2 HP – USED
Quiet Chuck DC Controller 490 w/ Athena Controller
High Purity Semiconductor Quartz Drip Tray **NEW**
High Purity Semiconductor Quartz Process Fixture **NEW*
Huntington Right Angle Pneumatic Elastomer Sealed Valve
Carten Ultra-High Purity Diaphragm 3-way Valve **NEW**
Applied Materials 5 Ph Stepper Motor Driver Interface
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