3D04153G05優(yōu)勢來襲
3D04153G05優(yōu)勢來襲
控制處理能力的另一個指標，運算速度，在人們印象當中PLC也比DCS要快很多。從某一個角度來看，情況也的確如此，PLC執(zhí)行邏輯運算的效率很高，執(zhí)行1K邏輯程序不到1毫秒，其控制周期(以DI輸入直接送DO輸出為例)可以控制在50ms以內;而DCS在處理邏輯運算和模擬運算時采用相同的方式，其控制周期往往在100ms以上。我們用PID算法來比較時，可以發(fā)現(xiàn)PLC執(zhí)行一個PID運算在幾個毫秒，而NETWORK6000+DCS的T2550控制器解算一個PID也需要1個毫秒，這說明PLC和DCS和實際運算能力是相當?shù)?某此型號的DCS控制器甚至更強。而控制周期上的差異主要與控制器的調度設計有關。大型PLC往往使用副CPU來完成模擬量的運算，主CPU高速地完成開關量運算，所以即使模擬運算速度一般，在開關量控制方面的速度表現(xiàn)還是非常優(yōu)秀的。而DCS以同樣的速度來處理開關量和模擬量運算，控制周期的指標確實不理想。新型的DCS控制器學習了大型PLC的設計，在控制周期方面的表現(xiàn)獲得了大幅度的提高。以NETWORK6000+DCS的T2550控制器為例。控制器可以設置四個不同優(yōu)先級的任務，zui小運算周期可以設為10ms，配合高速I/O卡件，控制周期能夠達到15~20ms。而模擬量運算設置在其它周期較長的任務中。
Watlow Anafaze PPC-TB50 Open Type Process Control Board
TDK LAMBDA GENESYS Power Supply P/N: 005071005
Keyence LV-21 Laser Sensor Amplifier
Galil Motion Controls PC Mate-10 Servo Amplifier/Power Supply
BOC Edwards GVI 063 P Pneumatic Gate Valve
Brooks Automation Wafer Pre-Aligner 00120182 Robot
Reid Ashman Granite RA16208-01 Rev. C Teach Pendant
Brooks Robot Teach Pendant 112033
Brooks Robot Teach Pendant 112910
SMC NASS300-N02 Flow Control Valve
Pfeiffer Sealing Gas Valve PM Z01 313 24V DC
Woodward 5437-672 Netcon Field Terminal Module
Omega Engineering Field Configurable Model TX-71 Lot of 2
Parker Compumotor 310-4A-LC-WD2S-?8
Barber Colman Temperature Controller 2204E
Samsung LTP700WV-F01 Display Panel 7” TFT 800x480 WVGA
CTI-Cryogenics 8112578G001 Roughing Valve
Eurotherm Chessell 750 /011240// Monitor Indicator
Edmund Scientific Co. 75mm F4 Lens
VERTEQ Matching Transformer P/N: 1069347.3 Transducer P/N: 1073728.1.1
PIAB Vacuum Pump M25B6-EN
CTI-Cryogenics TC Gage-VCR P/N: 8112105
Delta Tau UMAC Turbo 2-Axis 603398-107 603276-100
Omron E2E-CR8C2 Proximity Switch NEW
Harmonic Drive Systems Gear 14-50-067968
Electroswitch 10 position Switch 205 0015 NEW
APTech Mixing Valve AP3650/3000S DVD22 FV4 FV4 FV4
Diaphragm Vacuum Pump 949-9452 Vacuubrand
PCB PIEZOTRONICS Power Supply 482A06
Heidenhain LS 703 Linear Encoder
Weir SMS 50/5 Power Supply Serial #645231
Swagelok 6LVV-P2V222P1-C?C Diaphragm Valve
Opto 22 PB4R Mounting Rack New
NM Laser Products LST18 Output Aperture Laser
SIEMENS 5SX2 2 AMP BREAKER
Koganei GSI-50-DL Pressure Gauge with built in switch
Tektronix OTS91L1 Transmitter Receiver Optical Test
Schneider Electric emecanique RE8TA41BU Timer
Copley Controls 07-0133 Rev. G Board Lot of 8 Drive Amplifier
Hewlett Packard 83300A Remote Interface
Emcore Y1832-113-001A Fiber Optic Transceiver Lot of 2
Delta Tau UMAC Turbo 2-Axis 603398-109 & 603276-100
Bimba M-0072.35-DXPKT?2 Pneumatic Air Cylinder NEW
Dolan-Jenner Industries Fiber-Lite High Intensity Illuminator Series 180
Brooks Automation Robot Power Supply Controller 155467
BOECKELER INSTRUMENTS MICROCODE II Model 2-MR
Omron DRT1-ID16T Remote Terminal 24V DC
SMC VQ1141-5L0 Lot of 3 Solenoid Valves NEW
Pfeiffer Vacuum PM 051 104-T Turbo Pump Connection Cable 5M **NEW**
Parker Bayside RS60-020-040SH Right Angle Motor Compumotor
Burkert 0330 C 5/64 FPM BR NPT1/4 Solenoid Valve
Advanced Motion Controls 25A8M Brush Type PWM Servo Amplifier AMP
Potter & Brumfield P30P42A12P1 Contactor 24V 50/60Hz
Brooks Robot Teach Pendant 112388
Global Specialties Logic Monitor LM-1 w/ Manual
Delta Tau Data Systems PMAC-2 ACC8E Assy# 602469-103
National Instruments P/N: 778848-01 NI Analog Waveform Editor NEW
Rorze RD-023MS 2P Micro Step Driver
Frequency Devices 90IP Instrumentation Platform 90PF
Sony Compact Processor PCS-P150 Sony Video Conference Camera
SMC I-J010B Rod Eye **NEW** Lot of 10
SMC Solenoid Valves VX2340J Lot of 2 NEW
SMC Valve Bank (6)SQ1231N-5-C4 & (1) SQ1131NY-5-C4
ABB S 201 UP-K 13A Circuit Breaker
Transistorized Power Supply Model 5015
Cosel R25A-5 Power Supply
WINNOV PCBA 5000 15 Video Editing Card
SONY Color Video Printer Controller Keypad
Sierra Side Trak III Mass Flow Controller N2
Varian 801 MILLITORR tc vacuum gauge 115V 60 Freq. 10W
Parker Fluid Control Solenoid 24-50/60 11w
Unit Celerity Mass Flow Controller UFC-8162 5cc PH3
Pfeiffer TCP 121 TCP121A ModNr: PM C01 497 A Vacuum Controller
Perkin-Elmer P/N: 7438-4010-1 Type I E.F.L. 12” f/4 4 ? x 4 ? Aerial Lens
SMC XSA3-43V-5G High Vacuum Valve New
CH Products M11F0A1P Joystick NEW
EUROMEX Illuminator EK-1 Fiber Optic Light Source LE.5210-110
VAT 362320/0048 A-1099835 Vacuum Gate Valve
Toshiba EX10*MA131 MFG. NO. M1326 Programmable Controller NIB
Wasco Pressure Switch P110-55W3B-X/12?77 80PSIG
Juniper Ethernet 1000Base-SX 710-000991 Module
BrooksNet DN 108378 Module DeviceNet
Opto 22 Term 1 Bus Termination Card NIB
Delta Tau 2/4 Axis Interface ACC28E 603404-105 & 603406-100
CTI-Cryogenics Module 8186088G001
SMC SY3140-5L0ZE Solenoid Valves Lot of 2
LAAKMANN ELECTRO-OPTICS, Inc. Laser Power Supply
Genesis Vacuum Technologies 111850 Teach Pendant
Bently Nevada Dual Velocity Monitor 3300/26 RMS Motified Screen Assy: 87669-01C
Asahi Seiko LOT OF 3 Coin Hopper
National Instruments 181830E-01 AT-GPIB/TNT Interface Card *UNUSED* Lot of 2
Granville-Phill?ips Mini-Convectron Model 275 Cat: 275806-EU
Banner GEO PresensePLUS P4 GEO Vision Camera P4GR
Omron Photoelectric Sensor Switch E3T-FD14 New
Fanuc PMC Cassette A A02B-0094-C101
Clarostat/Honey?well 308NPC250 Potentiometer NIB
Clarostat/Honey?well 308NPC250 Potentiometer NIB
Delta Tau UMAC Turbo 2-Axis Analog 603404-104
Cole-Parmer Masterflex Digi-Staltic Pump System Controller M/N: 77310-02
APTech Valve AP4540S 2PW FV4 FV4 125psi New
GE 269 Plus Motor Management Relay Model:269PLUS-1?00P-HI
Varian Remote Pump Module Controller 6A2
Brooks Automation Series 8 Robot Controller 108549
Fanuc Pulse Generator A860-0201-T002
Banner LEDRA62X62W SENSOR NEW
SMC MXU10-20 Pneumatic Table Slide
SCHNEIDER ELECTRIC LRDO6 OVERLOAD RELAY “NIB”
Swagelok Stainless Steel Elbow Male 3/8 TX1 ? ISO Lot of 4 Fittings** NEW**
SAM Mass Flow Controller 1480 N2 NEW
Zeltex Z50570 for MTS Systems 14 Bit ADC Module
MKS 728A02TGA2FA Baratron Pressure Transducer 2Torr
Allen Bradley SLC 500 Output Module 1746-OA16 C
Sanyo Denki BL Super PU Servo Amp. PU0A015EM11S00-?EAS1
Parker Veriflo 456000583 Stainless Steel Regulator Valve Model: 95930W2PTS
Brooks Instruments Model IPT122 Celerity 2” Pressure Transmitter NEW
Opticon NFT2135/002R Barcode Reader Scanner
SMC Pneumatic Cylinder US31552 250psi 1.70 MPa
Granville Phillips Micro-Ion Module 354006-YM-T w/extra Filament
SMC NVZ3240 Solenoid Valve 0.1~0.7 MPa
Proteus Industries 9205SS24P2 Flow Meter
D-Link DCS-2000 Audio Internet Camera
Bausch & Lomb Microscope Polaroid Camera Adapter 3x-10x
M-Unit Signal Transmitter SV-06-D w/Omron 8PFA
Masimo Signal Extraction Pulse CO-Oximeter Monitor Station Radical-7 Extra Face
Pacific Scientific Laser Driver Module 9020C LED Description
SUNX FX-301 Digital Fiber Optic Sensor
Thermo Scientific Orion3 Star PH Benchtop Meter
Keyence PJ-V21 Safety Light Curtain NIB
DMT Division of JAY-EL Products M4-426J30ILLT 12-15 VDC
Sensopart FMS 12-165 Sensor Infrared
Mykrolis Chambergard FV-100D Diffuser Load Lock Filter Diffuser NEW
SMC High Vacuum Valve XLA-40-X1068 NEW
Ormec SAC-DE02B2/1 DE Series Servo Drive
Keyence FU-59 Fiber Optic Sensor
Phoenix Contact Type UM108-FE Terminal Block w/ 32 Omron G2R-1-S Relays
Brooks Automation Dual Axis Linear Robot 015-0800-01
Fanuc ABS Pulse Coder Unit Type A860-0324-T001 2000P
Honeywell UDC5000 Ultra-Pro Temperature Controller
Fujikin FCS Flow Controller FCS-4WS-F1L#A N2
SMC SOLENOID VALVE MODEL VZ2150
Flex-Core CTA114 Signal Conditioner
Proteus Industries 0504SA4 Flow Sensor Switch NEW
SMC SY3140-5L0Z Solenoid Valves Lot of 2
CTI Cryogenics Stainless Steel Braid Hose 5400-S5-12C
