1797-PS2E2/A AB

描述

• 　　2编程语言的形式

本教材采用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。

(5896)Allen Bradley Photoelectric Sensor Diffuse 42CB-

(X1-1)1 NIB HYDE PARK VM1-PNO-Q SENSOR X1-1

(K5)1 WESTINGHOUSE MCP-0322C CIRCUIT BREAKER 3A(K5)

(O1-6)1 NUMATICS 11SAD411O SOLENOID VALVE O1-6

(H10)1 ALLEN BRADLEY 1785-KA3 COMMUNICATION ADAPTER PL

(E5)1 SQUARE D 9007AW-48 LIMIT SWITCH(E5)

(7602)Omron Timer 1.2 Sec to 300 Hrs.H3CR-A 100-240VA

(5931)Asco Solenoid Valve JFK8210C93NV 120/60 3/8″3

(Q7-1)1 NIB GRACO 918533 APPLICATOR BALL SEAT 1/4’Q7-

(D1)1 ACME ELECTRIC DR1202410 POWER SUPPLY(D1)

(Q7-2)9 NIB MICROSWITCH 8MA2 MOUNTING BRACKETS Q7-2

(L24)1 PHOENIX CONTACT 2971548 CONTACTOR L24

(O4-3)1 ALLEN BRADLEY 872C-A2N12-A5 PROXIMITY SENS

(N2-1)1 SQUARE D 9007-A012 LIMIT SWITCH N2-1

(E5)1 NAMCO PHOTO SWITCH EP230-24400(E5)

(E5)1 EATON 109100-304 PHOTOELECTRIC CABLE(E5)

(X1-2)1 SUN-X EX-M2 PHOTOELECTRIC SENSOR.X1-2.

(Q4-2)1 EFECTOR KIE2015-FBOA PROXIMITY SWITCH Q4-

(L25)1 RED LION CUB4V020 VOLTMETER DIGITAL L25

(8380)Lot of 12 Daito SMP20 2 Amp Fuses(Fanuc)(8380

UNIVERSAL FLOW MONITOR MN-BSA30GM-12-3?2V1.0-A 1-16 L2

(7920)Opcon Photoelectric Switch 10-30 VDC 6’Cable(7

(L25)1 EATON E51-KF723 PHOTOELECTRIC DIFFUSE L25

(7932)Skanamatic Photoelectric Switch S32205(7932)

(U1)1 HORTON BRAKE REPAIR KIT-5/8 MBU B1346.U1.

(8160)Telemecanique Coil LX1FH0242 Contactor 42 VAC IE

(O1-12)1 ALLEN BRADLEY 500F-BOD93 CONTACTOR O1-12

(Q8-1)1 NIB OMRON E3S-AR86 PHOTELECTRIC SENSOR Q8-1

(Q8-1)3 REPAIRED KB ELECTRONICS 9884 PCBOARDS Q8-1

(L27-1)1 HONEYWELL LC2LB4150-AB61A?J VALVE W/COIL L27-

(7420)Orange Research Differential Pressure Switch 180

(7421)Koyo Automation Direct Output 16PT Relay D4-16TR

(H3)1 SQUARE D 8502PDD3.10E MOTOR STARTER(H3)

(Q1-1)2 ASCO 649824 COILS Q1-1

(8416)DME Temperature Controller SSM-15-G

(Q1-1)1 ALLEN BRADLEY 871C-P15R30 PROXIMITY SWITCH

(L27-5)1 HONEYWELL 923H26Q-A7T-L SENSOR L27-5

(Q5-2)1 HYSTER 1327196 SHOE BRAKE Q5-2

(D2)2 ALLEN BRADLEY PUSHBUTTON 800TA1A(D2)

(N2-2)1 ALLEN BRADLEY 800T-FXTQ10RD4 PUSHBUTTON N2-2

(5419)Allen Bradley Cluster Pilot Light 800T-PC216

(T3-2)1 EAGLE SIGNAL HD42A622 ELECTRIC RESET TIME

(D4)1 NIB ARO FLUID POWER A222SD-120-A 2 POSITION STAC

(G1-4)1 MACO BARBER COLMAN A-13024-100 MEMORY CARTRIDG

(R2-5)1 NIB SQUARE D 9998 CA-81 3 POLE CONTACT KIT.R2

(E4)1 NIB NORGREN R17-800-NNLA REGULATOR E4

(X8-7)1 NIB ALLEN BRADLEY 100-A09ND3 AC CONTACTOR X8-7

(2109)Lot of 6 Allen Bradley Output Module Relay for B

(N1-1)1 FUJI ELECTRIC SRCA3631 STARTER N1-1

(X8-14)1 VICKERS DGMPC-3-ABK-BAK?-41 DUAL PILOT OPE

(N1-2)1 ALLEN BRADLEY 802MCJ1NF LIMIT SWITCH N1-2

1 ALLEN BRADLEY 802T-WSP PLUG IN LIMIT SWITCH N1-2

(A8)1 Parker L7352830253VXBA Valve(A8)

(G4)1 NIB TURCK NI8-M12-VP6X-H1?141 PROXIMITY SENSOR G4

(6459)Allen Bradley Limit Switch 802T-BP 60 A 120-600V