6ES7416-2XK04-0AB0西门子 总线型驱动器 返回列表页

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PLC的三种编程语言的特点介绍 
1．梯形图编程语言
梯形图沿袭了继电器控制电路的形式，它是在电器控制系统中常用的继电器、接触器逻辑控制基础上简化了符号演变来的，形象、直观、实用。
梯形图的设计应注意以下三点：
（一）梯形图按从左到右、从上到下的顺序排列。每一逻辑行起始于左母线，然后是触点的串、并联接，zui后是线圈与右母线相联。
（二）梯形图中每个梯级流过的不是物理电流，而是“概念电流"，从左流向右，其两端没有电源。这个“概念电流"只是形象地描述用户程序执行中应满足线圈接通的条件。
（三）输入继电器用于接收外部输入信号，而不能由PLC内部其它继电器的触点来驱动。因此，梯形图中只出现输入继电器的触点，而不出现其线圈。输出继电器输出程序执行结果给外部输出设备，
当梯形图中的输出继电器线圈得电时，就有信号输出，但不是直接驱动输出设备，而要通过输出接口的继电器、晶体管或晶闸管才能实现。输出继电器的触点可供内部编程使用。

郑娟萍

厦门仲鑫航自动化设备有限公司

2．语句表编程语言
指令语句表示一种与计算机汇编语言相类似的助记符编程方式，但比汇编语言易懂易学。一条指令语句是由步序、指令语和作用器件编号三部分组成。
3．控制系统流程图编程图
控制系统流程图是一种较新的编程方法。它是用像控制系统流程图一样的功能图表达一个控制过程，目前电工协会(IEC)正在实施发展这种新式的编程标准。

MKS Nor Cal 6 in. Flex Bellows Section NW-80 Thin Wall (Wall Thickness N/A)

MKS Nor Cal 5inch Flex Bellows Section NW-80 Thin Wall (Wall Thickness N/A)

MKS Nor Cal 5 inch Flex Bellows Section NW-80 Medium Wall (Wall Thickness N/A)

MKS Nor Cal 4.25 in. Flex Bellows Section NW-80 Thick wall (Wall Thickness N/A)

MKS Nor Cal 12" Straight Section ISO-KF NW-40 Flange w/ ? inch welded tube end

MKS No Hinge NW50 w/Centering Ring Overpressure Fittings Assembly Size NW-50

MKS Mass Flow Controller 1559A-100V-RV N2 100 SLM

MKS ISO-KF NW-50 5.9 inch Straight Section Stub Welded to 10 ? inch OD Stainless

MKS Instruments NW25  HPS Clamp 100312903

MKS Instruments Inc. France Conditioner 621 A-01000 B F

MKS Instruments 153D-26356 3 inch Throttle Valve

MKS Instruments 122AA-00100DB-SPCAL Pressure Transducer

MKS Instruments 122AA-00100DB Pressure Transducer

MKS Instruments 122A-11061 Pressure Transducer

MKS Half ISO-MF Conical reducer NW-100 to 3.0 inch OD 3.87 length

MKS Flexible Bellows ISO-MF NW-100, 5.9 inch, SS, 100763510

MKS DSSAD100 Mass Flow Controller Gas N2 Flow 2000

MKS Centering Ring KF-50 Overpressure Fittings, ISO-KF Size NW-50 O-Ring

MKS Blank Flange KF-40 Vacuum Fittings, ISO-KF Flange Size NW-40 100311705 HPS

MKS Baratron? 221AA-00010A Differential Capacitance Manometer

MKS Baratron Pressure Transducer 622A-13742

MKS Baratron 222CA-00010 replacement part #622A11TAE

MKS Baratron 222BA-00010AA

MKS 90° Elbow ISO-KF NW-40 100314505 316 Stainless Steel

MKS 90° Elbow ISO-KF NW-40 100314505 304 Stainless Steel Thin Wal

MKS 90° Elbow ISO-KF NW-40 100314505 304 Stainless Steel Thick Wal

MKS 649A-2567 Mass Flow Controller GAS NH3 500SCCM

MKS 649A-25465 Mass Flow Controller Gas 500 SCCM

MKS 621C01TDFHC Remote Transducer

MKS 153D-20-40-2 Control Valve

MKS 1476A13VR1AM Mass Flow Controller Gas N2 10000 SCCM

MKS 1476A12CR1AM Mass Flow Controller GAS N2 100SCCM

MKS 012789928 Mass Flow Controller

Minuteman, C-VAC HEPA ULPA Filter, 6286H6, 110014, Rated CFM 100, .12 micron

Minimus Vibratory Feeder VGW powers up

Milwaukee Valve Company 1/2" 30SS1F-02

Milwaukee Valve Company 1 ? inch, BA-475B, NPT Brass Ball Trim Valve

Milwaukee Valve Company 1 ? inch BA-450 A 112 FNPT, Brass BAll Valve 3RCK1

Milwaukee Valve Company 1 ? inch, FNPT 23C BA-400NSF 1JBA9, Brass Ball Valve

Milwaukee Valve Company 1 inch Solder, 23C BA-450NSF 100 Brass Ball Valve 3RCJ8

Millipore WGGB06WR1 ? Gasket, VCR 600 PSI Max Pressure

Millipore WG2F06WR1 ? Gasket, VCR 600 PSI Max Pressure

Millipore WG2F02RR2 Waferguard Inline Gas Filter ?  Male VCR Connection Ports

Millipore Pressure Gauge 01-0122-F ? in. Female VCR Fitting Back mount 0-160 psi

Millipore Pressure Gauge 0-100 psi 01-0111-E.

Millipore In-Line Gas Filter WG2F01HR1, C4EM6322

Millipore FC-2900V Mass Flow Controller GAS N2 Flow/Range 400 SCCM

Millipore FC-2900V Mass Flow Controller CF4 100SCCM

Millipore FC-2900M Mass Flow Controller Gas HBR 100 SCC

Millipore FC-2900M Mass Flow Controller GAS CL2 Flow/Range 500 SCCM

Millipore FC-2900M Mass Flow Controller GAS CL2 Flow/Range 200 SCCM

Millipore FC-2900M Mass Flow Controller GAS CL2 Flow/Range 100 SCCM

Millipore FC-2900M Mass Flow Controller BCL3 50 SCCM

Millipore Air Pressure Regulator 01-0111-E Male VCR Fittings Back mount

Microvision MVT-1060 Microscope Loader

Microvision MVT-1060 Microscope Loader

Microscan MS-3000 Decoder w/ Power Supply & Intermec 2852 Bar Code Scanner

Micro Memory Inc. MM-6200 Rev. K

Michlin Diazo Diazorb Absorber Filter 9, Lot of 2

Micaply Laminate EG 758-T 1oz Type GE HMS 16-1085 Thick 031-Close 16 x 15 inches

Micaply Fiberglass FLGF 1/16 1 oz 2 sides, 65M28S-12 94 V-O

Megnon Engineering Inc. 11000 Rev. A

MegaTest PWA 112067 PWB 112068  Mega Test  TG Board

MegaTest PWA 111308 Rev 14 PWB 111309 Rev 2 APG Rev. 14

Mega Kinetics Leak Sensor RS-1000FAP

Med Star Vacuum Adapters ? inch Male NPT Quick Connect

MDC Vacuum Products Corp. K075-SBLM-4

MDC Unbraided Hose 441125 NW-40, 36"LG Med Wall Bellows Tubing NEW

Maxon DC Motor w/ Encoder 4022.435.48191, 2260.818.216-200, 44.060.000-00.17-143

Matheson Pressure Gauges 63-3133

Matheson High-Purity Brass Line Regulator 3421

Matheson High Purity Gas Regulator 19-540

Matheson Dual Stage Regulator 19-580

Matheson 3320 Single Stage Non-Corrosive Regulator

Matheson 3320 0-3000/100 PSI

Matco-Norca Inc. Brass Plumbing Gate Valve, Solder Ends, ? inch 514C04

Master Pneumatic-Detroit INC R56S-2HV Miniature SS General Purpose  Regulator

Master Pneumatic Miniature Integral Filter/Regulator, ?" 1/8" ports

Manufactured Varies Mitered 90 Degrees Elbow NW-80 ISO-MF Vacuum w/ mount

Manufacture Varies S-Type 90o Elbow 1" Vacuum Fitting w/ NW-25 Flange Size

Manufacture Varies Hinge Clamp KF-50 Vacuum Fittings, ISO-KF Flange Size NW-50

Manual Gate Valve Helium Leak Tested HTE

Mactronix AWS 6 ?" Flat finder

Mace Teflon Servo Drive ?" Female 967-1421-1

Mace 2-Way Teflon Regulator Valve ?" Male 990-2424-112

MAC VALVES INC 55B-12-RA NSFP 55B12RA SOLENOID VALVE

MAC 130B-111AAAA and 56C-33-111AA Pilot Valve

Lumonics Lasermark 920L with Manual Output 8J Laser

Lot of 214 NEW Varian Semiconductor items

Lot of 17 VG Semicon LTD ORV361 O’ Ring Viton 361-19457

Logical Prompro-8 Eprom/EEprom Programming unit

Logical Prompro 7 Eprom/EEprom Programming unit

Logical Device, Inc. HC705 Device Programming Adaptor

Loctite Corp. Zeta 7100 Ultraviolet Mini-Cure System

Lintec MC-2101MCLG Mass Flow Controller HBR 100SCCM

Lintec MC-2101MC Mass Flow Controller SF6 300SCCM

Lintec MC-1101MC Mass Flow Controller HE 100SCCM

Linde Union Carbide Flow Meter FM43506 F5

Leybold-Heraeus NIZ 2 Power Supply

Leybold Flange Right Angle Vacuum Bellows Valve

Leybold AG Power Failure Venting Valves 17426 B2, Magnet-Schultz Memmingen

LDI Pneutronics Corp. 694-0071 Rev. A

Lambda Physik Spare Optics lens for laser, LPD3000, FL3002E

Lambda Physik Spare Laser Parts Transformers 881309, 891101/1

Lambda Physik Scan Control FL512 w/ KOHLSTAEDT Keypad DEZ90 Laser Parts LPD 3000

Lambda Physik Optics Train Pulse Dye Laser LPD3000, LPD 3002

Lambda Physik Optics Train Pulse Dye Laser FL3002, Parts for LPD3000

Lambda Physik LPD 3000 Steuer-Rack Motherboard II 89060.209, 22049405, 221431159

Lambda Physik LPD 3000 Stepping Motor Control output 8509230, Ultron US100B

Lambda Physik LP-189 Hydrogen Thyratron

Lambda Physik Control Unit Panel Keypad Board, Fl-3002-1, LPD 3000, 8609.134A

Lambda Physik Coherent Mirror Lens Spare Laser Parts

Lambda Alpha 1500W H07019 Power Supply

LAM RESEARCH FILTER FAN UNIT FOR DV-SYSTEM

LAM Research Drive Assy. 852-210011-004-5-DFT Heater

LAM Research Drive Assy. 852-011050-101-3-2315  Heater

Lam Research believed to be a Heating or Cooling Chuck

Lam Research 853-009000-003-L

Lam Research 853-009000-003-L

LAM Research 810-017031-004 Board Believe to be New

LAM Research 716-017112-300 Believe to be New Rev:B

LAM Research 716-014843-300 Believe to be New Rev:D

LAM Research 716-013344-001 Believe to be New Rev:D

LAM Research 713-002617-002 Believe to be New

LAM Housing Gap Adjust 715-011005-001 Believe to be new

LAM 853-017417-001 Assy. Harness Lifter Interface

LAM 839-470848-004 Rev. B Cleanroom

Label-AIRE Inc. Model 2138-B42 62 inches

KomfortGuard Light Duty Lab Coats, Disposable, 2XL, 40095, A10,  Total 49

Koganei Sensor Switch w/ Led CS3B, DC5?30V, 10?46mA

Koganei Pneumatic FM-Solid Manifold X88M Series w/ Solenoids FW110-4E FW110-4KE2

Kofloc RK1200 High Flow Meter with Precision Needle Valve

Kobold Y-DF-17559/60 Paddle Wheel Flow Sensor Frequency

Kobold Series DF-WM' Paddle Wheel Flow Switch

KNF Flodos PLM 1246-ND 300

KLA/Tencor/Tokyo Electron VIP Card Board

KLA Tencore Source Address Generator 710-710500-01

KLA Tencore MVME-147SA-1 Motorola

KLA Tencore 710-760137-20 Rev. A0 SoSPA Board

KLA Tencore 710-760008-00 SPA Destination Address Board

KLA Tencore 710-712640-00 Clock Drive Board Rev. C1

KLA Tencore 710-711041-01 Camera Correction Board

KLA Tencore 710-711014-01

KLA Tencore 710-710985-01 Video Input Board