描述
全面提高程序的质量，提高编程效率，使程序具有良好的可读性、可靠性、可维护性以及良好的结构，是每位程序设计者的目标。IEC61131-3是国际电工委员会(IEC)于1999年推出的用于工业控制领域的标准化编程语言，具有开放性、可移植性、结构化编程和结构化数据、检错和纠错能力强等特点，适用于plc编程。采用结构化程序设计，便于构造程序(尤其是复杂的程序)、多人设计，调试以及软件管理。虽然软件工程的思想已被绝大部分程序员所接受，但要将这种思想转化为软件开发过程中的自觉行为却不是一件很容易的事。CPU模块主要由微处理器（CPU芯片）和存储器组成。在PLC控制系统中，CPU模块相当于人的大脑和心脏，它不断地采集输入信号，执行用户程序，刷新系统的输出；存储器用来储存程序和数据。S7-300/400将CPU模块简称为CPU。输入(Input)模块和输出(Output)模块简称为I/O模块，开关量输入、开关量输出模块简称为DI模块和DO模块，模拟量输入、模拟量输出模块简称为AI模块和AO模块，它们统称为信号模块。信号模块是系统的眼、耳、手、脚，是联系外部现场设备和CPU模块的桥梁。
输入模块用来接收和采集输入信号，开关量输入模块用来接收从按钮、选择开关、数字拨码开关、限位开关、接近开关、光电开关、压力继电器等来的开关量输入信号。模拟量输入模块用来接收电位器、测速发电机和各种变送器提供的连续变化的模拟量电流、电压信号，或者直接接收热电阻、热电偶提供的温度信号。
开关量输出模块用来控制接触器、电磁阀、电磁铁、指示灯、数字显示装置和报警装置等输出设备，模拟量输出模块用来控制电动调节阀、变频器等执行器。
CPU模块内部的工作电压一般是DC5V，而PLC的外部输入/输出信号电压一般较高，例如DC24V或AC220V。从外部引入的尖峰电压和干扰噪声可能损坏CPU模块中的元器件，或使PLC不能正常工作。在信号模块中，用光耦合器和小型继电器等器件来隔离PLC的内部电路和外部的输入、输出电路。信号模块除了传递信号外，还有电平转换与隔离的作用。
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主营DCS系统配件
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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
Allen Bradley 1336-BDB-SP74D PCB,GATE DRIVE 1336 NEW
Allen Bradley 1336-BDB-SP44D PCB,GATE DRIVE 1336 NEW
ILLUMINATION TECHNOLOGIES 3900 LIGHTSOUCE W/LIGHT BAR
GN Elmi ETP 71 Telecom Protocol Analyser
Mitsubishi Melsec A616AD Module
Solectria BPM3 Motor with Controller
Mitsubishi melsec PLC set A2USHCPU-S1 , A1SJ71LP21 ….
Mitsubishi melsec PLC set A2USHCPU-S1 , A1SH42 ….
Mitsubishi AC Servo Motor HA-SH153 NEW
Diodes Inc AP1530SL-13 Regulators Control 1 reel 2250
Applied Materials 0190-70060 SIERRACIN/MAGNEDYNE
Applied Materials 0190-09534 power module .
Moeller WINbloc DP-4AO/UI Profibus DP 4 AO, volts ,base
Sumitomo Variable Frequency Drive invertor HF32043 NEW
Sumitomo Variable Frequency Drive invertor HF32043 NEW
Square D PowerLogic® power meter PM820
CG PowerCutter M1 Pyrotechnical Cutter
Mitsubishi MELSEC A2USCPU-S1 with extral
THK KR 30 Linear Actuator + Servo motor & controller
THK LM GUIDE ACTUATOR MODEL KR 4610A+540L0E-1X00 New
Moeller WinBloc DP-32DO/ 0.5A-P-2×16 W/ base 3 wire
Moeller WINbloc DP-4AI/UI Profibus DP 4 AI, volts ,base
ESI CKA 67412 GALVO DRIVER BOARD ESI LASER
Burkert 8630 Posistioner Control w 2702 Valve Actuator
Truninger AG QT32/32/32 Hydraulic Pump
Koyo Precision Instruments KT-701 SEEK & CSS Controller
Spectra Physics Model SOM-79
Siemens Analog card 6ES5470-4UB12
Siemens 6GK1143-0AA01 With 6ES5376-1AA11 16KB
POSITEC VRDM 3913/50 LWB with WD3-004.0801 driver
Cyberoptics cyberscan Laser Profilometer head with CCD
SONY LT11A-201B Display with DT12P or DT512P Probe
IAI RCS2-RA5C-A-60-4-100-T2-R03 With Driver NEW
IAI RCS-RA55R-A-60-GN-M-300-S With Driver NEW
VEXTA Oriental B1209 – E61BL BRUSHLESS DC MOTOR NEW
Quad Align Head Assy 10-22603 With extral
HIOLMATRO HLB 11 Lifting Bag SET
Sumitomo Variable Frequency Drive invertor HF32043 NEW
Sumitomo Variable Frequency Drive invertor HF32043 NEW
Sumitomo Variable Frequency Drive invertor HF32043 NEW
Basler L402K Line Scan Camera
Enviromental test chamber model TC550
SMC MYC25G-1045L Air Linear Actuators NEW
PMC Lone Star 5-1/2 Buttress work plug NEW, Certificate
SOLECTRIA DC-DC750 DC/DC Converter
KOLLMORGEN GOLDLINE M 207 B 24 Motor w / Alpha gearhead
Alcatel 2010 L Pascal Dual Stage Pump
Mitsubishi melsec AJ71LP21
HP/Agilent 3499A Switch/Controller Mainframe W/5 Card
HP 6652A SYSTEM DC POWER SUPPLY 0-20V/0-25A W/GPIB
LECROY AP-1M HIGH IMPEDANCE ADAPTER HI-Z BUFFER
OMRON AMD-S MOTION DETECTOR NEW
Mitsubishi melsec PLC set A2USHCPU-S1 with 7 module
Mitsubishi MELSEC A172SHCPUN with extral 5 Module
LOT OF 2 KEYENCE KV-700 PLC set , KV – H20 , KV – U7 ..
HP 54505B Digitizing Oscilloscope
VICKERS Direction valve DG5V-H8-2A-T-P2-V-80-JA NEW
Cambridge Technology Galvo system X and Y & Control
Cambridge Technology Galvo system X , Y & Control Card
NERA CITYLINK IDU unit
Federal Signal Akusta 2000 Series XEN4 Strobe Lights
Mitsubishi Melsec A616AD
Parker Compumotor S6-DRIVE, S83-135 SERVO DRIVE
Vexta Oriental Motor ASM98MC-P25 ALPHASTEP MOTOR NEW
Kollmorgen Servostar XT Servo motor MTC304B1 W/Driver
Celerity UNIT 125 MFC, N2, 15000 SCCM ,with test paper
applicom® PCI2000PFB Profibus Network Interface Card
YASKAWA AC Servo Drive SGDM-04ADA W/SGMPH-04AAA2C Motor
Spectrum VX8 OCTAL TMS320C4X : VXIBus MASTER BOARD
Siemens Simatic S5 6ES5 943-7UB21 CPU .
Applied Materials 0010-26315, DRIVE ASSY, SWLL INDEXER,
Applied Materials 0015-09091 phasetronics P1038A
KSI S1-1-1000 High Voltage Power Supply
VAT F10-22866 4″ High Vacuum Pneumatic Gate Valve
Deutsch tubing repair kit
IAI intelligent actuator with controller and extral .
Banner Micro screen light curtain set 1T2,USE/R2012NP2
Parker Daedal Compumotor 6X9 linear Stage Table &Driver
Extol InfraTol™ CI602 controller
TORO Hydrostatic pump replacement kit ProCore 648 NEW
Seagull Precision inc Linear Amplifier B4242
SMC MYC40-900L Air Linear Actuators NEW
SMC MYC25G-900H-E73AL Air Linear Actuators NEW
SMC MYH40-400-E73AL Air Linear Actuators NEW
Lot of 2 Keyence Plc KZ – P500 , KZ – TC4 , KZ – U5
Lot of 25 Omron C200H PLC , CPU43 , ID217 , NC413 …
GALIL DMC-1780 8-AXIS ISA MOTION CONTROL BOARD
Lot of 3 Circutor CP2000/200 Current Clamp 2000/200 AMP
SKF Magnetric , telescopic pillars TLG10-AD3XX-100 ,24V
Fusion systems corporation 1/2 magnetron ,High/Low pair
Mercury Computer Systems Impact RT 3100 Card
Allied telesis AT-MC1005/2 Media Converter 20KM NEW
Diodes Inc AP1086D25L-13 LDO Regulators 1 reel of 2250
Diodes Inc AP1086D33L-13 LDO Regulators 1 reel of 2250
Diodes Inc AP1086D18L-13 LDO Regulators 1 reel of 2250
NXP Semiconductors PCF8563T/F4 Real Time Clock 2250 pic
SMC MYC25G-1065L Air Linear Actuators NEW
Mitsubishi FX2N – 48MR With FX2N – 4DA
KLA-Tencor 760-031790-00 Detector unit ,
Pacific Precision Labs ST-LP.66.P100.S X-Y Axis Stage
Elga Elgastat C118 Laboratory Deionisers with meter .
KLA-TENCOR SFLEX2 MOTHER BOARD ASSY W/DAUGHTER BOARD ,
ZUMRO RES Q Ram ,
Martin Fiber Source CMY150 Color Illuminator
THK Liner Guided Slide 51CM With Smart Motor SM2337D
Keyence EX-510 High accuracy inductive gauging sensor
Softing PB-IF-1MS PROFIBUS PCI CARD
TOKI SANGYO CO , LTD TV-20 viscometer
YASKAWA AC Servo Drive SGDM-04ADA W/SGMPH-04AAA21 Motor
Moeller WinBloc DP-32DI/P 2X16 W/ base 3 wire connect
ETS Lindgren EMI/RFI Shielded Chamber T/T 12x12x12″
8 APPLIED MATERIALS 0021-33781 membrane 300mm titan NEW
8 APPLIED MATERIALS 0021-33788 membrane 8″ titan NEW
APPLIED MATERIALS 0040-54849 GIMBAL SUPPORT 300MM NEW
Jaguar DBC6830 ECU XJ40 4.0 NEW
APPLIED MATERIALS 0010-27417
Yamaha SR1-X-20 Robot Controller
ALLEN BRADLEY MPL-A310P-HJ24AA SERVO MOTOR W/ Gearhead
ESI CKA 63116 timer/communications module
ESI CKA 55110 axes control Module ,
Tektronix TG 501A Time Mark Generator
Lot of 10000 ECEV1CA220SR 22UF,16V,20%,SMT CAPACITOR
Banner EZ Screen SLSE14-750Q8 & SLSR14-750Q8 Set , NEW
Olympus U-RLA Vertical Illuminator with LMPlanFL 5X Len
Yaskawa SGM – 08A314 AC Servo Motor NEW
RED JACKET UMP150U3-3 Submersible Turbine Pump NEW
ESI CKA 64639 liner field module
Mitsubishi MR-J2-100C AC Servo Driver
IAI ROBO CYLINDER TEACHING PENDANT NEW
THK KR 20 Linear Actuator + Servo motor & controller
Pacific Scientifc ServoMotor R33SSNC-SS-NS-NV-02/DRIVER
THK Liner Guided Slide 41CM W Smart Motor SM2337D-PLS
Allied telesis AT-PB1001/1 PowerBlade Module:10KM NEW
IEI AD2000C ADHESIVE SEALANT DISPENSE SYSTEM
Alcatel adixen ACT 100 controller
ORIENTAL MOTOR PK596AW1-T10 with UDK5114NW2 Driver
Parker Daedal Compumotor 6X6 linear Stage Table &Driver
Motorola MVME 332XTS & MVME 710B Mainframe Board NEW
THK LCA4006-015L Linear Actuators with driver & cable
CKD PARECT Flow splitter with pressure control NEW
Uniop ETOP11-0050 COLOR OPERATOR INTERFACE TOUCHSCREEN
Uniop ECT-16-0045 COLOR OPERATOR INTERFACE TOUCHSCREEN
Advanced Energy PE Power Pack 3157512-006C
LENORD BAUER GEL 293 Hollow-shaft encoder,coupling NEW
LEYBOLD TURBOTRONIK NT 1000/1500 TURBO PUMP CONTROLLER
Lot of 10 SICK OPTIC WT12 – P4381 PHOTOELECTRIC SWITCH
GEORGII KOBOLD KSY 464.80 R6/S88/SA SERVO MOTOR 8000RPM
Parker Daedal 008-7782 linear Stage Table & Driver
Parker Daedal 008-7783 linear Stage Table & Driver
Parker Daedal 081-7780 linear Stage Table & Driver
Parker Daedal 008-7781 linear Stage Table & Driver
VEXTA Oriental B1166 – E51BLM BRUSHLESS DC MOTOR NEW
VEXTA Oriental B1580 – D51KBLM AC Servo MOTOR NEW
EMERSON SERVO MOTOR MGE-316-CONS-0000 ,Bayside Gearhead
Herrmann Ultraschalltechnik 2112 Ultrasonic controller
Mitsubishi Melsec A62DA-S1 Analog module
Rudolf R-DPA96 DIGITAL POWER ANALYZER
Mitsubishi AC Servo Motor HA-SH153
Lot of 10 Applied Materials 0190-12476 RTT LAMP NEW
Keyence KZ-350 PLC Set with cable and terminal
OHKURA EC5600S DIGITAL PROGRAMMER TEMPERATURE CONTROL
NXP Semiconductors TDA8932T Audio Amp Reel of 750
ALSTOM KCGG142 02L20EEB overcurrent & earthfault relay
ALSTOM KCGG142 02L20CEC overcurrent & earthfault relay
GEC ALSTHOM KCGG142 01D2 overcurrent & earthfault relay
EFD 7012336 EFD PERFORMUS VII DISPENSING SYSTEM
Lot of 5 NAIS PLC set with extral
ANELVA DM-100 Particle Monitor
MITSUBISHI MELSEC Q SERIES QJ71LP21-25 DATA LINK NEW
Masterflex Pump 77521-57 with Easy-load 3 Head 77800-50
NAIS Plc with Touch panel set .
FUJI ELECTRIC FALDIC RYB500S3-VBC DRIVER W/MOTOR/CABLE
Sanyo Denki Step Syn Synchronous Motor 103H89331-0261
ADVANTECH DSA 3400 NT56E Network Digital Signage Box
McLean Midwest PROAIR CR23-0216-G002 AIR CONDITIONER
CALMINI 2005-07 Nissan Frontier 5” Lift kit (Carton 3)
Philips PM5687 TV digital sound modulator
Panasonic AC Servo Drive MQDB012AAD02 NEW 0190-15328
Tektronix TDS360 2-CH Digital Real-Time Oscilloscope
THK VLA-ST-60-12-0300 LINEAR STAGE 300MM travel W/Motor
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