描述
(2)确定I/O设备
根据被控对象对PLC控制系统的功能要求,确定系统所需的用户输入、输出设备。常用的输入设备有按钮、选择开关、行程开关、传感器等,常用的输出设备有继电器、接触器、指示灯、电磁阀等。
(3)选择合适的PLC类型
根据已确定的用户I/O设备,统计所需的输入信号和输出信号的点数,选择合适的PLC类型,包括机型的选择、容量的选择、I/O模块的选择、电源模块的选择等。
(4)分配I/O点
分配PLC的输入输出点,编制出输入/输出分配表或者画出输入/输出端子的接线图。接着九可以进行PLC程序设计,同时可进行控制柜或操作台的设计和现场施工。
(5)设计应用系统梯形图程序
根据工作功能图表或状态流程图等设计出梯形图即编程。这一步是整个应用系统设计的最核心工作,也是比较困难的一步,要设计好梯形图,首先要十分熟悉控制要求,同时还要有一定的电气设计的实践经验。
(6)将程序输入PLC
当使用简易编程器将程序输入PLC时,需要先将梯形图转换成指令助记符,以便输入。当使用可编程序控制器的辅助编程软件在计算机上编程时,可通过上下位机的连接电缆将程序下载到PLC中去。
欧美品牌停产的,常用的“PLC”备品备件
我司产品应用于以下领域:
1,《发电厂DCS监控系统》
2,《智能平钢化炉系统制造》
3,《PLC可编程输送控制系统》
4,《DCS集散控制系统》
5,《智能型消防供水控制系统》
6,《化工厂药液恒流量计算机控制系统》
7,《电气控制系统》造纸,印染生产线,变电站综合自动化控制系列
本特利,英维思,伍德沃德,福克斯波罗、西屋、瑞恩、施耐德莫迪康、ABB、AB、西门子、摩托罗拉、GE发那科、安川、博世力士乐,ACSO,力士乐等各大品牌的DCS系统配件,机器人系统配件,大型伺服系统备件。
2 Cutler-Hammer SPB100 Switchboards
Conceptronic HVA 102 High Velocity Forced Convection O
CROWNE 30SP36 TL Order PICKER FORKLIFT 3000 LBS
Adept Cobra 600 Robot Robotic Arm
3 Lindgren RF Enclosures Radio Frequency
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GCI Crane Lift Industrial Arm Suction Pneumatic
Gallmeyer&Livingston No.45 Surface Grinder
Veet 3R Precision Radial Arm Drill
Florida Feeders FH-2 FB-18 FF-18 FI-9 Feeder
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12 Comco Directflo DF1400-13CE and Directflo DF1200-13
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ROMAIR VS-488 55″DIA EXTRACTION FAN 3HP BALDOR
15 HP BATTENFIELD GLOUCESTER 1012BP15 Granulator&PLA
Autojecter WDHS75-S 75 ton Vertical Clamp Injection Mo
Sciex API III Biomolecular Mass Analyzer
ATS 5548 Film Winder Cell
WYKO Optical Profiler RS109294 6-250651 TT759610
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Lagun FTV-25 Milling Machine 3 Axis
Jeol JSM-IC255 Scanning Microscope
3 Robinaire 17500B Refigerant Recovery and Recycling S
Intelligent Reasoning Systems AIMS 3 Axis Inspection S
AEC Whitlock Conair 149 Plastic Dryer&Hopper 480v
Hitachi ATC-Rj8,At5000c 3 axis,200v scanning unit
Leybold 25B DryVac System Precision Vacuum
LVO FL14G Stainless Gas Front Load Pan Washer
HERMAN SCHWABE RC4100 ROLLING PRESS 42 1/2 x 84 ins.
Tektronix TDS714L Oscilloscope Color 500MHz 4Ch 500MSa
Autoquip Lift Table 4000 lbs 78×114”
230 NorthWest Fastener Screw 10N2500XR0Z/ROH
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Chatillon TCD500 Tension Meter
Schneider Automation 140 CPS 114 10 TSX Quantum PLC
Best Power UT3120 UPS 120KVA 120KW
COMPUTYPE 3-AXIS NEXSTEP AUTOMATION w/CONVEYOR 14×36”
Friedrich Deckel 2250 Pantograph
7 Intermec 601XP EasyCoder Thermal Printer
Lot of Intermec Tracker Wireless Barcode Scanner
2 Adept 310 Robotic controller supply
2 HP 7418A Event Recorders
ETTER CONTINUOUS CONVEYOR BELT Plastic Drying Dryer OV
Amtech 900B Ultrasonic Metal Welding Harness
Amtech 900B Ultrasonic Metal Welding Harness
Amtech 900B Ultrasonic Welder Welding Harness
Amtech 900B Ultrasonic Welder Welding Harness
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Watking Johnson 12CD-721R Heat Tunnel Oven
HP Agilent 6032A System Power Supply 0-60V,0-50A
345 Britax 372 Rotating Amber Halogen Beacon
Carlyle 06NW2250S7EA A00 HVAC Compressor Motor
Heller 942C 4-Zone Table Top Reflow Oven
2 Erbium Crystalase CLR2940 YAG Dermatology Lasers Las
Nissui MBE3003 Plastic Mixing Mixer System
Mikron Neslab Black Body Calibration Source
GE SCP PLUS Switchboard 480Y277AC
Tektronix TV1350 TV Demodulator
1 Kenco Kompac Press 3K-7-100 3 Ton
Amtech 900B Ultrasonic Welder Welding Harness
ACER AGS-1224AHD SURFACE GRINDER 12X24
Electro-Craft IQ2000 PDM-20 Indexer Servo
3 Becker RV33/13-606-01 Vacuum Pump Blower
TCE 705-58 GRP 504 Winding Machine Winder
Clinton STBG-29ALR PDC-20 DC Pinhole Detector
5 HP 85024A High Frequency Probe
Reliable Rubber Plastic 4319 Press Platen Hydraulic
27 Stanley 120-7180 AGR Framed Sliding Doors
Artos TA-20R-10 Crimper Cutter w/feeder
Rota-Flow DP-150-E30 Power Unit Hydraulic Elevator Dov
3 UTE SCS124 Wafer Substrate Cleaning System Post Dici
4 Michelin Offroad TIRES 16.00 R20 X2L TUBELESS STEEL
Horlick 50PF-31 Sychronous AC Generator Motor-Generator
Omega-Alpha Metals 500 Ionic Contamination Test System
Chemical Safety Technologies Pump Station BCA Sump
Adept Cobra 600 Robot Robotic Arm
Sumitomo SE54Q2MT-072 Fiber Optical Cable 1500FT