150-F201NBD 描述冗余
系统架构向FCS方向发展。单纯从技术而言,现阶段现场总线集成于DCS可以有三种方式:① 现场总线于DCS系统I/O总线上的集成――通过一个现场总线接口卡挂在DCS的I/O总线上,使得在DCS控制器所看到的现场总线来的信息就如同来自一个传统的DCS设备卡一样。例如Fisher-Rosemount公司推出的DeltaV系统采用的就是此种集成方案。② 现场总线于DCS系统网络层的集成――就是在DCS更一层网络上集成现场总线系统,这种集成方式不需要对DCS控制站进行改动,对原有系统影响较小。如Smar公司的302系列现场总线产品可以实现在DCS系统网络层集成其现场总线功能。③ 现场总线通过网关与DCS系统并行集成――现场总线和DCS还可以通过网关桥接实现并行集成。如SUPCON的现场总线系统,利用HART协议网桥连接系统操作站和现场仪表,从而实现现场总线设备管理系统操作站与HART协议现场仪表之间的通信功能。
一直以来DCS的在于控制,它以“分散”作为关键字。但现代发展更着重于全系统信息综合管理,今后“综合”又将成为其关键字,向实现控制体系、运行体系、计划体系、管理体系的综合自动化方向发展,实施从底层的实时控制、优化控制上升到生产调度、经营管理,以至层的战略决策,形成一个具有柔性、度自动化的管控一体化系统。
BECKMAN 260 PH/TEMP/MV METER 511202 W/ ORION ELECTRODE
HP COMPAQ 72.8GB 73GB 15K U320 HARD DRIVE 306641-001
POMONA ELECTRONICS 3787-C-36 CABLE ASSEMBLY
AGASTAT TIMING RELAY 2122D4MD 2122 12VDC .38 - 3 SEC
AGASTAT TIMING RELAY 2122DH2MD 2122 12VDC .38 - 3 SEC
WESTINGHOUSE WESTATION DT CONTROLLER 4D33811G02
VINTAGE 1937 WESTON MULTI-RANGE DC VOLTMETER MODEL 45
IBM ARTIC MULTIPORT ISA BOARD 33F8967
SIEMENS SIMATIC C79458-L2343-A2 ETHERNET ISA MODULE
WATERS ALLIANCE 2695 SEPARATIONS MODULE & COLUMN HEATER
DELL 110W GX150 POWER SUPPLY 854JE HP-L1116F3P
CORNING MP4I MULTI-POSITION STIRRER 440824 4 x 1L
HP AGILENT 3488A SWITCH CONTROL 44470A 44471A 44474A
TEKTRONIX 1750 WAVEFORM / VECTOR MONITOR
WATERS HPLC 432 CONDUCTIVITY DETECTOR
WATERS 996 PAD PHOTODIODE ARRAY DETECTOR
MEDICAL SYSTEMS TC-202 BIPOLAR TEMPERATURE CONTROLLER
GENUINE CISCO 2FE2W-V2 FAST ETHERNET MODULE
WATERS HPLC NOVA-PAK C18 4um 3.9x300mm COLUMN WAT011695
NOB ALLEN BRADLEY 2755 BAR CODE SCANNER 2755-L4R12
HP AGILENT 10441A OSCILLOSCOPE PROBE W/ ACCESSORIES
SIEMENS LANDIS & STAEFA AIR QUALITY SENSOR QPA63.1
POTTER PFC-4410-RC ZONE RELEASING CONTROL PANEL
GENUINE CISCO VIC-2FXS 2 PORT CARD 2FXS
EXTRON P/S 150 PS 150 15 VDC POWER SUPPLY
GENTNER AUDIO CONFERENCE UNIT MODEL TI7200
MCM DEWMATIC HYGROMETER MODEL 600D
HP NVIDIA QUADRO 4 AGP 980 XGL VIDEO CARD 313285-001
PSC QUICK CHECK 820 BARCODE SCANNER VERIFIER
LAMBDA LPD-422A-FM DUAL POWER SUPPLY
SONY UP-51MDU COLOR VIDEO PRINTER
ISI VIDEO THERM 94 THERMAL IMAGING CAMERA W/ AG-2400
HP 73GB 15K RPM WIDE U320 SCSI HARD DRIVE 404713-001
MONO TORR SAES GETTERS GAS PURIFIER PS3MT3R1
DRANETZ 616 SERIES DISTURBANCE ANALYZER 616A
DELL 73GB SCSI HARD DRIVE 15K RPM MAS3735NC K4405
BARNSTEAD ELECTROTHERMAL POWER SUPPLY GSIOC-8PSU
WATLOW 93AA TEMPERATURE CONTROLLER 93AA-1CD0-00AA
MILLIPORE TYLAN 2979M SERIES MASS FLOW
GEORGII KOBOLD KSY 466.40 R6 BRUSHLESS SERVOMOTOR
PIKE TECHNOLOGIES AUTOPRO SPECTROSCOPIC CONTROLLER
NATIONAL INSTRUMENTS PCI-MIO-16XE-50 DAQ CARD
APC SMARTSLOT NETWORK MANAGEMENT CARD AP9617
AMC BRUSHLESS PWM SERVO AMPLIFIER BD15A8B
OMEGA DIGITAL TEMPERATURE CONTROLLER CN 300 CN300
NOB RICOH PRINTER MAINTENANCE KIT 3800A
ISMATEC PERISTALTIC PUMP MINI-S 640
ROSEMOUNT 444RL2U2A2E5 TEMPERATURE TRANSMITTER 444
IBM LENOVO T61 R61 DOCKING STATION 42W4632 42W4633
IBM THINKPAD 2504 PORT REPLICATOR DOCK 42W4638
IBM THINKPAD X41 DOCKING STATION W/ KEY 26R8536
DINAMAP XL VITAL SIGNS MONITOR
AEG MODICON NW-BM85-000 BRIDGE/MUX MODBUS PLUS UNIT
AMERSHAM PHARMACIA LKB U PRECISION PUMP 18-1800-01
J SCHNEIDER AKKUTEC 2440 POWER SUPPLY NBPAP33G1M14
BIO WHITTAKER KINETIC QCL 10-710 MICROPLATE READER
TEKTRONIX P6106 10X OSCILLOSCOPE PROBE
METTLER TOLEDO SB16000 PRECISION BALANCE SCALE
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