描述
AB 1203-cn1
本教材采用最常用的两种编程语言，一是梯形图，二是助记符语言表。采用梯形图编程，因为它直观易懂，但需要一台个人计算机及相应的编程软件；采用助记符形式便于实验，因为它只需要一台简易编程器，而不必用昂贵的图形编程器或计算机来编程。
虽然一些高档的PLC还具有与计算机兼容的C语言、BASIC语言、专用的高级语言（如西门子公司的GRAPH5、三菱公司的MELSAP），还有用布尔逻辑语言、通用计算机兼容的汇编语言等。不管怎么样，各厂家的编程语言都只能适用于本厂的产品。
l 编程指令：指令是PLC被告知要做什么，以及怎样去做的代码或符号。从本质上讲，指令只是一些二进制代码，这点PLC与普通的计算机是完全相同的。同时PLC也有编译系统，它可以把一些文字符号或图形符号编译成机器码，所以用户看到的PLC指令一般不是机器码而是文字代码，或图形符号。常用的助记符语句用英文文字（可用多国文字）的缩写及数字代表各相应指令。常用的图形符号即梯形图，它类似于电气原理图是符号，易为电气工作人员所接受。
l 指令系统：一个PLC所具有的指令的全体称为该PLC的指令系统。它包含着指令的多少，各指令都能干什么事，代表着PLC的功能和性能。一般讲，功能强、性能好的PLC，其指令系统必然丰富，所能干的事也就多。我们在编程之前必须弄清PLC的指令系统
l 程序：PLC指令的有序集合，PLC运行它，可进行相应的工作，当然，这里的程序是指PLC的用户程序。用户程序一般由用户设计，PLC的厂家或代销商不提供。用语句表达的程序不大直观，可读性差，特别是较复杂的程序，更难读，所以多数程序用梯形图表达。
l 梯形图：梯形图是通过连线把PLC指令的梯形图符号连接在一起的连通图，用以表达所使用的PLC指令及其前后顺序，它与电气原理图很相似。它的连线有两种：一为母线，另一为内部横竖线。内部横竖线把一个个梯形图符号指令连成一个指令组，这个指令组一般总是从装载（LD）指令开始，必要时再继以若干个输入指令（含LD指令），以建立逻辑条件。最后为输出类指令，实现输出控制，或为数据控制、流程控制、通讯处理、监控工作等指令，以进行相应的工作。母线是用来连接指令组的。下图是三菱公司的FX2N系列产品的最简单的梯形图例：
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。Triconex Siemens Yaskawa ABB GE Ovation AB Foxboro Motorola Schneider XYCOM KUKA
Oriental Motor Super Vexta UD519 5 Phase Motor Driver
Giddings and Lewis 502-02748-01 Valve Driver
Kollmorgen Ind PSR4/5A-112 Power Supply Rebuilt
Reliance Electric IRCG DC Drive Relay Module 0-51839-8
Mikron SA Agno 169-3-0001-B Rotor
Grove Gear Flexaline BMQ220-2 Worm Speed Reducer
Marposs 63213215500 E14 RAM Card – NIB
Omron Programmable Controller 3G2C4-SI Expansion Unit
Reliance Elect P25S3029 AC Motor 15 HP Three-Phase
Oval Strapper 2D597-3 Balance Fly-Wheel
Acme TF-2-49873-S 3KVA General Purpose Transformer NIB
Timken 42350 90067 Matched Tapered Bearing Assembly
ASCO 8342C-020 Solenoid Valve
Sensis Corp BBCF1410 Fixed Mount Bumpy Barcode
Beta Tech Inc BC-FSC-050-004 Input Board
Fanuc Drive A20B-1003-0080 Power Control AC Servo Board
Stearns Rexnord 87000 Series Self-Adjust Brakes – New
Eaton-Kenway Doo60672 Digital to Analog Converter Board
Reliance Electric P56X2002P 1 HP 1725RPM AC Brake Motor
Mitsubishi FX63A CNC Module FX63
Cincinnati Milacron 4-531-4004A00B Interface Module
VEE-ARC PC7000-10 Regulator Board 404-039 L
Siemens 6FX1128-1BA00 PCB Memory Board
Reliance Electric P18G4901EC 5HP 3475RPM AC Motor
Thermal Care 960-0169 Std Fitted Model 16 Motorpump
Allen Bradley 1771-SDN Series B Devicenet Module NIB
Control Techniques 9600-6400 Dominax DD400 5HP Drive
Giddings & Lewis 502-02722-50 Address Generator Board
Rapid Electric PC72 Cat Printed Circuit Board P.C. 72
GE 5BC48JB830 1.2HP 2550 RPM DC Motor
General Electric 5KS213SAB205A 7.5HP 1770RPM -NIB-
PARKER PR3MM Pressure Reducing Valve
25 Saturn Precision Brass Rod Electrode .0121 X 12″
ASCO 8344B48 Double Valve
Square D KAL36225 Circuit Breaker – Used
Price Pump CD 100 SS CD100SS Pump End Only
Square D 5S1FIS 5.0 KVA Insulated Transformer 156908
Fanuc A20B-0008-0242 PC Board
GE Fanuc 44A398712-G01 PC Board IFI32 for 7500
Allen Bradley 512-BJB-3E-5R-6P-24R Starter w/Disconnect
Cincinnati Milacron 3-531-3180A Jumper Board
Digital M8049 64 Bit Parallel I/O Module
Banner Engineering MGR2416A Light Curtain Receiver
Reliance Electric 0-51839-8 IRJC Board
Acme-Gridley Pully Shaft for 5/8″ Acme Bar Machine
Cognex 800-5740-1 Rev. K In-Sight 1000 Processor Camera
1910-3132 Small Grinder Part 702 495 53
Siemens 548-258-9102 CPU Board For System 810
Lexmark 16A0553 X433/X443 MFP Option – New
Vickers DG4S4-012N-115AC50-51 Double Solenoid Valve
Allen-Bradley 1771-PA Power Supply
25 Saturn Precision Brass Rod Electrode .01229 X 12″
Sony Magnascale MSS-201B Encoder
PHD 302578-03 Hoerbiger-Origa 72309-0303 Cylinder
SKF NN3016 KTN/SPW33 CYLINDRICAL ROLLER BEARING
Miller Coax MK-15-NC-14-15-C1-1/2 Solenoid Valve
Leeson C6T17FC111F AC Motor 1/2 HP 1725 RPM
Circle Seal Controls SV462A32P6P39 Solenoid Valve
Stromag 04-04907 SAF.9 100V .23 Amp Brake
Marposs 6321321500 Shared RAM Memory Board
Shawmut A4BT1600 Time-Delay Fuse
Sundstrand 65001223 EFM-G1 Control Board
Bijur Type D3156 TM-5 Automatic Cycle Lubricator
Magnatrov M036527 Valve 50PSI 45Watts 120V 60Hz 2″ Pipe
FAFNIR/TORRINGTON 2MM911WI DUL EXTRA PRECISION BEARING
GE 5KCP39CG 1000/870/750 RPM 1/20 HP Electric Motor
Okuma E4809-770-032-2 Relay Board
ASCO 8300D61U SOLENOID VALVE
Festo DGO-1 5/8″-54-HA Rodless Pneumatic Cylinder
Allen Bradley 7300-UDB-3 Output Module
Giddings and Lewis 502-02724-51 Console Interface Board
Giddings and Lewis 502-02721-50 ALU Board
Giddings and Lewis 502-02723-52 CPU Control Board
Lintech SA-2096-E2 Shaft Assembly SA2096E2
Cincinnati Milacron Paper Tape Interface Board
Lot of 450 Speedfam Sleeve For Speedfam 10WD0047
Reliance Electric 86474-8S Rectifier Stack
Baumuller GSF 56-S Servo Motor
Reliance Electric 86474-7S Thyristor Assembly
Okuma H1014-0007-64 Ball Screw for Okuma LB9 Lathe
Omron C200H-OD215 Output Unit –
Vickers SA4-06 Series Servo Valve
Continental Hydraulics PVR15-15B15 1500 PSI Vane Pump
Allen-Bradley 1305-BA06A Adjustable Frequency AC Drive
Danfoss 04205 1 HP 1800 RPM Permanent Magnetic DC Motor
Lexmark 16A0400 OptraImage X433/X443 MFP Scan Unit
Allen Bradley 700-NT400A1 Type N Timing Relay
Oneac CX1000 Power Conditioner
Muller 120V1H03 DC Drive
Telemecanique RM3 JA102MW Current Measurement Relay
Allen Bradley 700-RTC00110V1 Solid State Timing Relay
Cutler Hammer D60LT3 Current Sensing Relay Transformer
Hiwin Tech 9812963004 Ball Screw 6 X 6 Working Stroke
Ophir 1201400 AN/2 Display for Ophir Thermal Hands
Allen Bradley 1775-MEA 64K Ram Memory
Kuroda Precision RX300042-1 J1 Ballscrew 1000, XM3
Crizaf 0270366AFYE000000 ES/2 UO/U2 Conveyor Belt
Grundfos MOT MG 71B2-14FT85-C Motor
Omron C200H-CT001-V1 Counter Unit
Reliance Electric P56X7258M .5-HP 1725 RPM AC Motor
Giddings & Lewis 502-02804-50 EIA Interface Board
Westinghouse 5ACLS-5R 5.08KV 150A 60Hz Fuse
Reliance Electric SP120 S12-403P8LU 2HP AC Drive
G&L 502-02777-50 Digitizing Interface Board – Used
Giddings & Lewis 502-02724-51 Console Interface Board
BANNER MSE2024Y MINI-SCREEN SAFETY LIGHT CURTAIN
Hayes DA-21012-C Driver Amplifier
Landert-Motoren 63-MK-FA4C AC Motor
GE Fanuc 44A397853-G01 TODI/A Card
Banner USCD-1T2 Mircro Control Box
Reliance Electric 10XW4011 VSM500 Speed Drive w/Motor
Price Pump F50AI-369-6A211-50-36-3T6 1/2 HP Baldor
Computer Products 021-5222 AC Input Module
GE Fanuc IC693MDL751CA Output Module 12/24 VDC 32PT NIB
Westinghouse HMCP070J2C Motor Circuit Protector Breaker
Cincinnati Milacron 3-351-3291A Monitor Control Board
Cincinnati Milacron 3-351-3628A Slide Driver CPU Board
Escort Memory Systems HS900-4 Controller Board
Giddings and Lewis 502-02721-50 ALU Board
Parker SS60105001 Double Solenoid Valve
G&L 502-02718-50 Universal CRT Interface Board – Used
Numatics V1211400900MOO Rodless Locking Cylinder – Used
Gould Shawmut Amp-trap CS-3 A550X200E-1 Fuse
Symbol LS4006I-I100 Scanner
Fasco 066541501 1500/1400 RPM 1/20 HP Electric Motor
GE 5KCP29FK 1540/1150 RPM 1/10 HP Electric Motor
Raycon 30-730044-Rev B Micropulse Backplane – NEW
Baldor 35L486X945G1 1-HP Stainless Steel AC Motor
WEB Printing 800-136-00 Motherboard
A.O. Smith DE3G047N 1050 RPM Electric Motor
GE 44A398716-G01 TRAD2A Board 44A398716G01
Westinghouse A201K1CA Non-Reversing 27-Amp Contactor
Allen-Bradley 1494F-NF100 Disconnect Switch
Muller 120V3H03 DC Drive
Pacific Scientific R33 GENC-HS-ND-NV-00 Servo Motor
Superior Electric M091-FF-206C5 Slo-Syn Motor
Marposs 6421610100 E14 Magazine Memory Card 4X16K
SUPERIOR ELECTIC M091-FF-206C5 STEPPING MOTOR
Magnetek CE3F011N 1100 RPM Electric Motor
Boy Machines SB54 Digital Display Board – Used
Boy Machines SB53 Digital Display Board – Used
Koganei MRGH20X200 Slide
Allen-Bradley 1771-IXE/A Thermocouple/Millivolt Module
GE Fanuc 44A397889-G01 CG5D Board For 550
Landis A99304 MPC-FDI Board
Okuma Opus 5000 E4809-032-452-C EC Board
GE Fanuc 44A399752-G02 REG11Board for Series 1050
Marposs 6349340100 Electric Retraction Module
Norton Alundum Grinding Wheel 57A80-RR51
Racine 951940 Driver Board
EMC Clariion 005348430 Main Board Assembly
Cincinnati Milacron 4-531-4020A PCB Board
Cincinnati Milacron 3-531-3490A Slide Driver Board
Pair of Fafnir 2MM9112WI CR DUL SuperPrecision Bearing
TB Woods BY48SAA BY Spacer Sub Assembly CL A
Allen Bradley 1785-LT PLC-5/15 Processor Module
Mace M0-170BQ 17″ Black & White Security System
Giddings and Lewis 502-03113-00 Power Supply and Driver
Yaskawa JANCD-CP11 CPU Board
Heidenhain 251-681-79 Encoder
Gould/Modicon AS-W600-006 Cable Assembly
Westinghouse A201K2CA Model J Non-Reversing Contactor
SCHUNK OSE-A34-4 ROTATE UNIT
Fafnir 3MM212WI DUL Super Precision Ball Bearing NIB
Parker GAW151P-A81V-A Actuator Gripper 150 PSI
Baldor CM3613T 5HP AC Motor
Omron Programmable Controller 3G2C4-SI Expansion Unit
Burks Pumps H22CW0526 T315GA5-1-AI-MV Centrifugal Pump
GE 5KCP39DG 1075 RPM 1/8 HP Electric Motor
GE 5KCP39BG 1000/870/750 RPM 1/20 HP Electric Motor
Emerson Electric Model WC1004 DC Motor Unused
Allen-Bradley 6632-MBSB Modem
Acopian VA5MT900 Regulated Power Supply
Bussman JCL-A-4R Fuse 130A 60Hz
Sensotec 43/0825-02 Load Cell 100LBS 10VDC
Norgren A1277C1 Rev 3 Actuator
Winter 1919-3402 Diamond Dressing Roller
Adept Technologies 13200-00040 FIB Sensor Cable
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