描述
1746-OB16
对于一个自动化工程(特别是中大规模控制系统)来讲,选择网络是很重要的,甚至有人提出了“网络就是控制器”的概念。首先,网络必须是开放的,以方便不同设备的集成及未来系统规模的扩展;其次,针对不同网络层次的传输性能要求来选择网络的形式,这必须在较深入地了解该网络标准的协议、机制的前提下进行;另外,综合考虑系统成本、设备兼容性、现场环境适用性等具体问题,确定不同层次所使用的网络标准。一个实时系统的性能可从时间、可靠性和应用对象三个方面来衡量。与其它控制设备比较,PLC最重要的特征是“扫描”。PLC上电后,自动重复执行程序扫描和I/O扫描,即输入采样、用户程序执行和输出刷新三个阶段。完成上述三个阶段称作一个扫描周期。在输入采样阶段,PLC以扫描方式依次地读入所有输入状态和数据,并将它们存入I/O映象区中相应的单元内,输入采样结束后,转入用户程序执行和输出刷新阶段,即使输入状态和数据发生变化,I/O映象区中的相应单元的状态和数据也不会改变。在用户程序执行阶段,PLC按由上而下、先左后右的顺序依次地扫描程序(梯形图),根据逻辑运算的结果,刷新RAM存储区或I/O映象区对应单元的状态。在输出刷新阶段,根据I/O映象区内对应的状态和数据刷新所有的输出锁存电路,再经输出电路驱动相应的外设,这时,才是PLC的真正输出。可见,采用PLC程序控制的过程和结果与继电器逻辑回路是有区别的,特别是涉及到梯级的次序、脉冲信号的捕捉等,与PLC的扫描原理是密切相关的。实践中,大量的程序问题均源于此,常常会出现不可思议的结果。因此,设计PLC程序,必须精通PLC的基本原理。
产品承诺:
保 证 全新原装进口,
保 证 安全准时发货,
保 证售后服务质量,
优势价格,大量现货。
主营DCS系统配件
机器人系统配件
大型伺服系统配件
品牌:ABB ,AB ,GE,FOXBORO,本特利,英维思,伍德沃德,西屋,瑞恩,施耐德,西门子,摩托罗拉,安川。力士乐。ACSO,横河等进口品牌。 专业销售进口DCS PLC系统备件模块
Triconex Siemens Yaskawa ABB GE Ovation AB Foxboro Motorola Schneider XYCOM KUKA 专业销售进口DCS PLC系统备件模块 15天包退换 一年质保 大量现货 国内实力库存商家
INDUSTRIAL HAND PUNCH PRESS MACHINE / TEMP CONTROLLERS
LINOS POCKELS CELL KDP LASER Q-SWITCH NdiYag LM10-SG-SP
CISCO PIX-515E-R-DMZ FIREWALL VPN WITH CABLES COMPLETE
CHAMPION 7-BAY TOWER CD BURNER DUPLICATOR / FREE SHIP
KLA TENCOR LOADER BRUSHLESS DC SERVO MOTOR RELIANCE
DAINIPPON SCREEN OPERATOR LCD MONITOR KEYBOARD PORTABLE
HARVARD APPARATUS PHD-2000 HPSI SYRINGE PUMP CONTROLLER
BLUE-M STABIL-THERM OV-472A-2 LAB OVEN POWER-O-MATIC 70
LOT 5 TECAN CAVRO SYRINGE PUMP MOTORIZED INJECTOR VALVE
CHAMPION 7-BAY TOWER CD DUPLICATOR BURNER / FREE SHIP
LOT 3 SORRENTO GigaMux MODULES GMMD-G8 GMCR-2.5G GMAD
ArthroCare ARTHROSCOPIC ELECTROSURGERY 2000 /FOOT PEDAL
ABB ACH501 ADJUSTABLE FREQUENCY AC DRIVE 3-HP ACH500
NEW Duncan Ceramic Kiln Crafter Oven Pottery Craft Auto
NEW CLEMENT CLARK 904 SLIT LAMP HEAD CHINREST JOYSTICK
PARKER ROSA X-Y LINEAR POSITIONER TABLE STAGE MOTORIZED
FUJITSU EA1330S TELECOM ATM SWITCH EA1000 SERIES
FINESSE TRUFLUOR DO TRANSMITTER TRUCELL SENSOR PROBE
Everest Interscience Infrared Thermometer / Temp Sensor
Vacuubrand MZ 2B Diaphragm Vacuum Pump MZ2B / Warranty
LOT NIDEK OPHTHALMOLOGY LASER REPLACEMENT PARTS NEW
NI Developer Suite PCI-7324 Motion Controller National
LOT NEWPORT LASER APERTURE OPTICS LENSES HOLDERS DRIVER
NEW BOGEN MT250D POWER AMPLIFIER BATTERY BACKUP MT-250D
LOT 2 MITUTOYO SD-D1E DIGIMATIC READOUT DISPLAY 572-011
Holman T-710 T710 Conveyor Toaster 120 Volt / Warranty
RODENSTOCK XR-HELIGON 1: 1.5 f=100mm LENS / ADAPTERS
Lot Kawasaki Robot Parts Arms Cables Bearings Robotics
TECAN CAVRO ROBOT ARM MSP MiniPrep AUTOSAMPLER ROBOTICS
NIDEK JOYSTICK CONTROLLER DEVICE MEDICAL INSTRUMENTS
NEW Todd Switching DC Power Supply 450W MAX-450-11988
FINESSE TRUCELL SENSOR PROBE BLUETOOTH CELL DENSITY
NEW YASKAWA AC SERVO MOTOR 499W 200V SGMPS-04A2A-YA11
NEW DAINIPPON SCREEN PNEUMATIC ASSEMBLY MODEL FILE HH
SIMCO TOP GUN F10 IONIZING BLOW-OFF STATIC NEUTRALIZING
MARCH AP-1000 PLASMA TREATMENT SYSTEM 2005/6
PLASMATHERM System VII Batchtop Plasma etcher
PAC TECH SB2-SM Solder Ball Bumper
NATIONAL INSTRUMENTS PXI 1045 Chassis with 10 Module
Sumitomo Cryopump SICERA KZ-8L3C AMAT 0190-27149 NEW
COHERENT Fiber Array Package (FAP) Laser System Tested
PanaRobo VR-008AII Welding Robot Set W/Manual
POLYTEC Laser Vibrometer System OFV 3000 With OFV 501
Starrett Galileo AV300 Video Measuring system
EMCO PC MILL 55 CNC TABLETOP ,Hypervision Chip UnZip
Photo Research Spectrascan PR-704 Radiometers .
Fischer Panda 14000NE AC Marine Generator
FANUC LR Mate 100 5 Axis Robot , Controller , Teach ,
Alfa Laval SRU6 Rotary Lobe Pump NEW !
SONY TEKTRONIX 3026 REALTIME SPECTRUM ANALYZER
CTI ON-BOARD 10 CRYOPUMP
BOC Edwards IH600 Dry Vacuum Pump With display terminal
basler S2 DVD scanner
Wentworth Labs MP0900 Wafer Prober W/ Mitutoyo WF optic
Pfeiffer Balzers Duo 35 Dual Stage Rotary Vane pump
Rofin Baasel Laser set , U-A-020 , SK-1012BLT ,
Ascension Technology Corporation MotionStar Wired
basler TSI scanner
Omron F400 visual inspection set
AE ADVANCED ENERGY E’WAVE GENERATOR 3152603-006
FUJINON EC-310HL electronic video endoscope system
Pentax Endoscope Endoscopy Gastroscope EPM-300P System
DAIHEN RMN-10B8 RF Automatic Matching Unit set NEW
SANKYO seisakusho 16DMD-1823.69R2-HR3VW2 SANDEX Drive N
INNOTEC GROUP INC RF MATCH WITH AUTO TUNE NETWORK
Micro Join RFC6400 Bonder
Victoreen 660 X-Ray/CT Exposure Measurement Instrument
INET Spectra Portable Analyzer Protocol Tester Full set
Unitron Unimet MR-1 Inverted Metallurgical Microscope
Nihon Micro Coating ALTB-100TC buffing system
Dressler Cesar DTG 2710 RF Generator 1000W 27.12MHz
Konica Minolta CA-210 Color Analyzer With Probe
DAIHEN RMN-10B1 RF Automatic Matching Unit NEW
LLOYD INSTRUMENTS PLC Pull Tester L100 With 1000S
Merlin Gerin Schneider Electric NT08 H1 Breaker logoic
Air operated hydraulic Press TAIYO Parker NBH – 100
IPT Ionen-und Plasmatechnik Plasma Beam Source PBS
Varian TV 550 Turbopump NEW
Panasonic panadac QFP Sensor head VT-D201 , XVTD203 NEW
SIEMENS CPU 416-2, MPI, PROFIBUS, 5.6 MB NEW
SIEMENS S5 6ES5 945-7UA11 115U CPU 945 PLC SET
Hp Laser set , 5519B laser head , 10705A , 10703A ..ect
GE Healthcare DASH 3000 Patient Monitor
GENESIS HC70 HELIUM COMPRESSOR
Agilent / HP E1429A / E1429B 20 MSa/s Digitizer
Rigaku Flange mount Hollow shaft rotary feedthroughs
Adimec MX12P 1K x1K progressive scan camera with lens
YAMAHA YK250XC Scara robots
Carlo Erba Fisons HRGC. Mega 8530 Gas Chromatograph
Aglient N4553A OC-48 SONET/SDH/PDH Handheld Testers NEW
N4538A STM-4/OC12 SDH/Sonet/PDH Handheld Tester NEW
Agilent N4504A E1 BERT w/Datacom Handheld Tester
Newport ESP 6000 Motion Controllers,Stage & extral
APV Lobe Pump CL1/012/15 with variable speed gear units
Varian TV 300HT Vacuum Turbopump/controller/cable Set
OLYMPUS BH-2 BH2 TRINOCULAR MICROSCOPE With CCD
SONY DXC-9100P 3CCD COLOR VIDEO CAMERA
HVA High Vacuum 10″ Gate Valve 11211-1000K NEW
AE Advanced Energy MDX 1.5K Power Supply NEW
Epson Robot Arm ES651S W/ SRC-520 Drive unit and cable
Yokogawa DX112-1-2 6 channels Digital Recorder
Allen Bradley compact I/O PLC With L35E CPU
Siemens simatic 6ES5948-3UA11 , S5-155U CPU948
NF Electronic 3660A HF Programmable Low pass Filter
Tokyo seimitsu SURFCOM surface texture measuring set
Epson Robot Arm ES551S W/ SRC-500/20 Drive unit / cable
SIEMENS SED2-75/32B HVAC variable speed drives
Adimec MX12P 1K x1K progressive scan camera
Applied Materials 0040-78022 REV 02 NEW
Zumbach Metrex 5 Concentricity Measurement Unit
0183-0048-12 KIT, REPAIR-BALL AND FASTENER
Coherent Laser beam monitor / conditioner
KLA – Tencor KIT , 190 ANALYZER FRU II 0145772-000
Precision Technology Motor Linear Slide 54 inch travel
KAISER ROYLYN Ball Valves Overhaul Kit 0182-0067-12 NEW
Allen Bradley compact I/O PLC With L35E CPU
Carl Zeiss PreView PHP visual field analyzer
Epson Robot Arm H554BN , SRC320 , cable & SPEL software
Truninger AG QT61-160/33-010 Hydraulic Pump
Allen Bradley compact I/O PLC MICROLOGIX 1764-28BXB
Spectra physics 163-C4210 Ar+ laser SET Tested Working
Omron ZX-TDS04T-L Smart Sensor Head New
ShImadzu Turbopump Controller EI-D1103M new
Mitsubishi A273UHCPU Controller
SANYO DENKI BL SUPER P6 AC SERVOMOTOR P60B18750RXS00M
Mitsubishi Movemaster RV-M2 Robot Arm
FUJI ELECTRIC FVR110G7S-4S AC DIRVE
YAMAHA YK540A Scara robots
ROHDE & SCHWARZ 4320 SMHU SIGNAL GENERATOR
NERA CITYLINK ODU Module NEW
Epson Robot Arm EC251C , SRC320 , cable & software SPEL
Panasonic P8000-770B Control module
SWAM-BLAST Micro Sandblaster Model LV-1
AMAT APPLIED MATERIALS 0040-48822 MAGNET NEW
INNOTEC GROUP INC RF POWER SUPPLY HFP-85000
Konica Minolta CA-110 LCD Color Analyzer with Probe
medox electro-optics pocket cell timer & driver set
MUSASHI JET MASTER 2 Non contact jet dispenser
Vanguard Systems inc PROFUSION Peel Back Tester
THK KR5520BE+1114LP2E-00X0 Linear Actuator
AMKUS Combi Tool AMK C15
Hielscher UP200S Ultrasonic Processor
APPLIED MATERIALS 0010-26180 HE RF MATCH BIAS W/FILTER
AE Apex 5513 RF Generator 5.5kW 0190-11209
YAMAHA YK250XC Scara robots
OLYMPUS FLEXIBLE ENF TYPE P3 Endoscope
KEYTEK 2000 ESD ELECTROSTATIC DISCHARGE SIMULATOR
OMRON AC servo Motor R88M – H30030B W/ IMT Gearhead NEW
Agilent / HP E1428A 1 GSa/s VXI Oscilloscope
AE Remote Plasma Gen 3151801-004A , 0190-13025
Epson Robot Arm ES451S W/ SRC-500/20 Drive unit / cable
Panasonic PanaRobo Arm FR-H057MX2A4 W/Control & cable
Mitsubishi Q06HCPU PLC with extral
ULVAC VUGH-200 Gate Valve 8″
GENESIS VACUUM ICP 150 CRYOPUMP
Sony Tektronix AWG2041 Arbitrary Waveform Generator
PROMICON SYSTEM SBR-19 RACK WITH CARDS SMX-2,PCQ-4 ,…
NSK Megatorque motor RS1410
APPLIED MATERIALS 0041-05819 LID , Chamber RPS NEW
KLA – Tencor eS35 IA Board PN: 0134014-002
APPLIED MATERIALS 3030-06043 METER-FLOWLFCLFM NEW
Endress + Hauser Gammapilot M FMG60 Radiometric Sensor
KLA-TENCOR 0111816-000 MCP10-DPRC CARD MERCURY COMPUTER
NSK Megatorque motor YS5120FN001
YASKAWA SGDM-50ADA SERVO MOTOR DRIVER
Schaffner NSG 433 static discharge simulator
Mitsubishi Melsec Q02HCPU WITH EXTRAL
Truninger AG QT52-063/42-032 Hydraulic Pump
OLYMPUS CK30 inverted microscope
applicom® Ethernet PCU2000ETH Ethernet interface card
Angst+Pfister AS-310/5 Driver W/ 3AL-0130-30-0/R Motor
AE RFPP LF-5 RF GENERATOR with ATL-100RA auto match
MITSUBISHI MELSEC PLC ,A3ACPU & lot of extral
PIXELINK PL – A782 Colour 6.6 Megapixel camera
Racal RA1778 radio communications receiver
LEYBOLD INFICON TRANSPECTOR 2.0 TSPTB100 with C100M
PROMICON SYSTEM SBR-19 RACK WITH CARDS SMX-2,PCQ-4 ,…
LEYBOLD INFICON TRANSPECTOR TSP TH100 with H100M
Advantest R4131B 10kHz – 3.5GHz Spectrum Analyzer
VAT MONOVAT Rectangular Gate Valve 0340X-LA24-BHK2 NIB
Newport Motorized Vertical Translation Stage UZM80PE.1
Newport Motorized Precision Rotation Stage URM80PE
MKS 653B-8-200J-2 EXHAUST THROTTLE VALVE JIS 200MM NEW
MICRO LASER MEASURE SET W/ LM10 & Laser sensor head
AE ADVANCED ENERGY PE-10/20K AC POWER SOURCE
Omron NT625C-ST152B Operator Interface Panels
YASKAWA USAFKD-50-FJ11 AC SERVO MOTOR WITH DRIVER
Mitsubishi AC Servo Motor HC-SFS81G2K With MC-Drive NEW
Panasonic MGM-32262S AC Servo Motor NEW
HP AGILENT 54520C 500 MHz OSCILLOSCOPE
Mitsubishi Melsec A616DAI Module
HOYA – Continuum HCL-3000S YAG Laser Head
panasonic ac servo motor MDM202A1C With Tsubaki NEW
IZUMI 12K-1 hydraulic indenting tool 60-235mm 23 ton
Merlin Gerin Schneider Electric NS 800 N Breaker logoic
YASKAWA USAEM-50FJ11/12 AC SERVO MOTOR WITH DRIVER
AMAT 0010-01676 SUSCEPTOR ASSY,TEOS,200MM,IMPR NEW
YASKAWA SGMS-30A6A AC SERVO MOTOR 3000W NEW
IAI Robo Cylinder RCS-RB7530-I-60 WITH CONTROLLER NEW
3 APPLIED MATERIALS 0040-09944 BELLOWS, GASLINE, NEW
Allied telesis AT-MCF112LH Media Converter 12 chanel
KOLLMORGEN Seidel Motor 6SM 45-L & servostar 603 set
Pixelmetrix TSP – 100 transport stream processor Module
GEORGII KOBOLD KSV 5/15 E1-M2-K4/ZK/P1/G3/S51/SA DRIVE
GEORGII KOBOLD KSV 10/30 E1-M2-KA/ZK/P1/S51/SA DRIVER
SALARTRON SI7500 multi axis-metrology display W/ Probe
Sony Tektronix TDS380P Digital Real-time Oscilloscope
MITUTOYO 515-721 STANDARD PRECISION CHECK MASTER
HP Agilent E1852B BLUETOOTH TEST SET
ABB NERA Transmitter unit 1 module
ABB NERA Receiver unit 2 module
SANYO DENKI BL SUPER PU SERVO AMP PU0A015EM91P00
IZUMI 16K hydraulic indenting tool 123-265mm set
Rockwell Automation Anorad linear motor Stage
ALLEN BRADLEY 2711-T9C16 PANELVIEW 900 INTERFACE PANEL
APPLIED MATERIALS 0010-09750 CVD RF-MATCH
INNOTEC GROUP INC VSC CONTROL DISPLAY
YASKAWA USAFED-30-FJ11 AC SERVO MOTOR WITH DRIVER
YASKAWA USAFED-13-FJ11 AC SERVO MOTOR WITH DRIVER
APPLIED MATERIALS T300_0010-14714 NEW
Data Translation DT3016 High Speed, High Resolution DAB
Logan Clutch Corporation SDD-1001 hydraulic Clutch
THK GL15-1240L Linear Actuator With Yaskawa Motor
ASM HIPEC MOTION SOLUTION with extral card
Keyence Laser Micrometer Controller VG-301 W/sensor
IFI CC-105EXX DC-1 GHz TEM Cell
OMRON SYSMAC C1000HF-CPUA1-V1 NEW
APPLIED MATERIALS 0010-10764
Elga Purelab Option Water Purification Systems
MITSUBISHI MELSERVO HC-SFS301 AC SERVO MOTOR NEW !!
Pharmacia biotech ultrospec 2000 Spectrophotometer
YASKAWA SGMS-20A6A AC SERVO MOTOR 2000W NEW
Buchi R-205 with V800 Rotary Evaporator
Furlex S200 Foresail Reefing parts
Ebara 524-421 Cryopump Paper work
ALLEN BRADLEY 1398 DDM 030 SERVO DRIVE W/ H 4050 Motor
VEXTA BLD120A – MK BRUSHLESS DC MOTOR DRIVER NEW
Miki pulley CO LTD , AC inverter VCD – 37 NEW
Sumitomo Variable Frequency Drive invertor HF3204 NEW
Mitsubishi MELSEC A2USCPU-S1 with extral
Mitsubishi Melservo MR-H350AN-S176-UE Servo Drive 3.5KW
NERA WORLDPHONE SATELLITE PHONE QUFC911929
Tektronix 1503C Metalic TDR Cable Tester & YT-1 Printer
MESS – TEK CO LTD M – 2617 PIEZO DRIVE AMPLIFIER
Keyence KV-700 PLC set KV-AD40 …. VT2-7SB Touch panel
CYBEROPTICS PWA:800 PCI BOARD
APPLIED MATERIALS 0010-09093 OZONATOR POWER w/Cell
Varian Turbo-V 700HT Turbomolecular pump Controller
TEKTRONIX ASG 140, AUDIO SIGNAL GENERATOR
Deutsch tubing repair kit hydraulic pump
Ebara 524 Cryopump
KEYENCE EX-V05 Digital Inductive Displacement SensorNEW
MITSUBISHI MELSEC A616DAV Analogue module
THK GL15-1240L Linear Actuator
C.E. Niehoff & Co. Generator/Alternator 76761-N1375
KLA – Tencor GPIO ASSY Board 0052412-001 REV.AB NEW
KLA-Tencor 395056 Tropel 2X mag conv lens NEW
BTX Electro Cell Manipulator System ECM 600
Toshiba Machine MGMA302C2GA AC Servo motor 3KW
KOLLMORGEN GOLDLINE M 207 B 24 Motor with Servostar CD
Baasel Laser CONTROL CARD LBS01 U-F-5901 84300-025
Boonton 9200A RF millivoltmeter
SANYO DENKI BL SUPER P8 AC SERVOMOTOR P80B22250HXS00
ETS Lindgren EMI/RFI Shielded Chamber T/T 18x18x18″
YASKAWA SGDM-20ADA SERVO MOTOR DRIVER
GECMA Challenger 15i-2-FMO Monitor hazardous zone 1/2
BALDOR FD2A05TR – RN20 Servo Driver
YASKAWA AC SERVO MOTOR USAPEM-05CSX21
TACMINA Bellows Pump JS-40L-X
Transducer techniques TI-3000 AMPLIFIER / CONDITIONER
APPLIED MATERIALS 0240-20073 KIT ELEC PER CHAMBER NEW
Applied Materials 0010-09411 Lamp Module 5000CVD 200mm
ETATRON D.S. 1D0155AA00A00 MECH DIAPH Dosing Pump NEW
Pacific Scientifc ServoMotor R33GENC-HS-NS-NV-00/DRIVER
Miki pulley CO LTD , AC inverter VCD – 22 NEW
Sumitomo Variable Frequency Drive invertor HF3204 NEW
AE Advanced Energy MDX-5K Power Supply 5kW
Siemens 6ES5 470-4UB12 OUTPUT MODULE ANALOG 8POINT NEW
Parker Compumotor AT6400 Indexer W/ AT6400-AUX Board
Parker TQ10 ,CM232AE-00944 Motor on stage with RCH22
IN USA IN-2000 LoCon Ozone Analyzer
Kyowa MCC-8A housing With DPE-16A ,8x DPM-13A & MCG-21A
PARKER GV-H20R-13237 GEMINI SERVO DRIVE NEW IN BOX
Yokogawa DL1520 Digital Oscilloscope
Sycon STC-200 Deposition Rate Controller
Omron CS1H – CPU64H, CPU Processor W/ CS1W – SCB41 – V1
Force RTB-504 Rear Transition Board Card
KLA – Tencor optics assembly 2xxx 0024939-000 Y-Mirror
AN/ARC-115A , VHF/AM Radio
KLA-Tencor PCB ASSY , INTF-DIAG , ES32 NEW
CKD AX4009S – D10 , DIRECT DRIVE ACTUATORS torque motor
Mitsubishi MELSEC-Q Q62P Q02CPU QX42 QY42P QJ71C24N PLC
ETATRON D.S. 1D0135BI00200 MECH DIAPH Dosing Pump NEW
ETATRON D.S. 1D0135BB00200 MECH DIAPH Dosing Pump NEW
Mitsubishi A230P MOTION CONTROLLER POWER SUPPLY
Power Team C1006C 100 Ton 6-5/8″ Stroke Cylinder NEW
Galil DMC-1750 ISA BUS 5-axis Motion Controllers extrl
APPLIED MATERIALS 0010-09441 WAFER LIFT ASSY, POSN D
Mitsubishi MELSEC A2USCPU-S1 with extral
APPLIED MATERIALS 0010-09340W SUSCEPTOR LIFTER NEW
专业销售进口DCS PLC系统备件模块
PLC模块,可编程控制器,CPU模块,IO模块,AI模块,通讯模块。AB/施耐德/ABB/GE/本特利/西屋/英维斯/霍尼韦尔/黑马/FU克斯波罗
15天包退换 一年质保 大量现货 国内实力库存商家