A1SJ71LP21

A1SJ71LP21

A1SJ71LP21

A1SJ71LP21

一、摘要 PLC是一种专门在工业环境下应用而设计的数字运算操作的电子装置。

它采用可以编制程序的存储器，用来在其内部存储执行逻辑运算、顺序运算、计时、计数和算术运算等操作的指令，并能通过数字式或模拟式的输入和输出，控制各种类型的机械或生产过程。PLC及其有关的外围设备都应按照易于与工业控制系统形成一个整体，易于扩展其功能的原则而设计。在工业生产的各个领域，机械加工企业为了提高生产效率，采用机械化流水作业的方式，对不同类型的零件分别组成的自动生产线。随着产品机型的更新换代，生产线承担的加工对象也随之改变，这就需要改变控制程序，使生产线的机械设备按新的工艺过程运行，而继电接触器控制器系统是采用固定接线，很难适应这个要求。大型自动生产线的控制系统使用的继电器数量很多，随着PLC的应用日益普及,其使用方法简单,便于掌握,且可靠性,抗干扰性很强,自身具有完善的功能.模块化的结构,使其在工业生产线上的应用越来越广泛。

　　发展趋势：1.向高速度、大容量方向发展

　　为了提高PLC的处理能力，要求PLC具有的响应速度和更大的存储容量。目前，有的PLC的扫描速度可达0.1ms/k步左右。PLC的扫描速度已成为很重要的一个性能指标。

　　在存储容量方面，有的PLC可达几十兆字节。为了扩大存储容量，有的公司已使用了磁泡存储器或硬盘。

　　2.向超大型、超小型两个方向发展

　　当前中小型PLC比较多，为了适应市场的多种需要，今后PLC要向多品种方向发展，特别是向超大型和超小型两个方向发展。现已有I/O点数达14336点的超大型PLC，其使用32位微处理器，多CPU并行工作和大容量存储器，功能强。

Alco EK-304 Liquid Line Filter Dryer Extra Klean EK304

Alerton APLC Logic Controller

Alerton TX-450 24 VAC 4 Digital Inputs 5 Triac Outputs TX450

Allied Telesyn AT-210TS CentreCom 210TS Twisted Pair Transceiver AT210TS

Altech 50 D-SUB Breakout Board 50D-SUB 50DSUB

Altech S31.21A Cable Gland 20 A 2 P / 3W 6 h 250 V S3121A  (TB)

Amada B0016E-NC3B-00B Two Axis Controller Circuit Board PCB B0016ENC3B00B

Amada B0112C-XCMTB-00A Circuit Board PCB B0112CXCMTB B0112CXCMTB00A

Amada PB7 GEI (3) 722 C 04 Circuit Board PCB

Amada PB7 SCP-220-I/O(1) 2191001016710 0GE1 2115 C 06 Circuit Board PCB

Amada PB7 SCP-220-I/O(2) 2191001016820 0GE2 1012 F 05 PRT A-0

Amada S-2774 Relay Board S2774

Amada S-2852 Circuit Board PCB S2852

Amada S-2854B Power Supply Board S2854B

Amada S-5841 Circuit Board PCB S5841

Amada Sanyo Denki PDT-B3B-10 Servo Drive Amplifier PDTB3B10

Amada SS-25U Power Supply 12 VDC 2.1 Amp SS25U Stanley

Amana 987282-01 Circuit Board 987282-01 98728201 987282

Amana 987401-01 Circuit Board 98740101 987401

Amana Allen Bradley 811732-1 Optical Sensor P-4-DARL 8117321 811732

AMCI SM23-A112DE Advanced Micro Control Stepper Motor 200 Step/Rev SM23A112DE

American Standard P69211 Wabco  (TB)

American Weldquip 75015222T 15 Foot Liner Direct Connect .035 - .045 Inch

Ametek DT-8350 Digital Thermometer Type J T/C DT8350

Ametek USG 56-81-5 Gauge Range 0-100 PSI Glycerin Filled 56815

Ametek USG P844U 1/8 C. BK Gauge Range 160 PSI 138005  U.S. Gauge

AMF Paragon 8145-20 D-Frost-O-Matic Time Control 208-240 VAC 814520

AMF Paragon EL74 4 Channel Time Control A-1471-66

AMG 12338150-2 34623 Bracket Hanger Axle Front Differential RH 123381502 2530-01

AMI Bearings Asahi KHR210

Amperite 12DP.1-60C 12 VDC On Delay Timing Relay 0.1 - 60 Seconds 12DP160C

Amphenol BC0 97-3057-1007-1 Connector 97305710071  (TB)

Amphenol BC0 97-3106A-14S 850 Connector 973106A14S 850  (TB)

Amphenol T 3111 000 Connector T3111000

Anaheim Automation 34D209S 2.5 VDC Stepper Motor 4.6 Amp

Anaheim Automation 34D311S 2.8 VDC Stepper Motor 5.5 Amp

Anderson TDL Differential Level Transmitter

Andover Controls 01-1000-241 Rev F Universal I/O PCB Board 011000241

AO Smith 322P794 Fan Motor 1/5 HP 208-230 V 42Y FLL 1075 RPM 1.3 A A.O.

AO Smith 363061M JF1G075N 115 VAC 3000 RPM 1/8 HP A.O.

AO Smith 9004771115 Thermocouple A.O. Honeywell Q309B1177 Q309B 1177

AO Smith 9004771115 Thermocouple Product Preservers 32536-7 325367

AO Smith F48C68B24 Fan Motor 1/10 HP 208-230 V 48Y 1100/3 SPD RPM 0.6 A A.O.

AO Smith F48SJ6MA54B1 Fan Motor 1/3 HP 115 V 48Y 1050 RPM 2 Speed A.O F48SJ6MA54

AP 24-1003 CNT.104 7828 Sensor AP24-1003 AP241003 CNT 104 CNT104

Apollo Valves 10-604 3/4 " 150 PSIG Pressure Relief Valve 10604 604

Appleton CGSR12 Strain Relief Connector CORD SIZE 0.625 TO 0.75 CG-SR12 Box of 5

APV 03HP420146 #6 HD NIT Rotor 86 Profile 316

Archer F2575Z 5VK1 EMI/RFI Filter 5 Amp 120 V 273-100 273100

Arcotronics 0.22 uF 750 VAC Capacitor 10+10 Ohm Resistor T 10% 1 w

Arjay 9064 115 VAC Level Alarm Series 9060

Armstrong DN20-PN16 BR 3/4 Balancing Valve  DN20PN16

Aro 127122-000 Pneuamtic Regulator 127122000

Aro 202-C Pneumatic Limit Switch 202C (TB)

Aro 26341-000 1/2" Air Lubricator Module 200 PSI 125 Deg F 26341000 26341 000

Aro 2F861 Air Flow Control Valve

Aro 59121 Time Delay Unit

Aro 59474-4 Pneumatic Fitting 594744

Aro 59756-4 Pneumatic Fitting 597564

Aro 59800 Inhibitor Unit

Aro 59891 Electric Solenoid Switch

Aro F01 Pneumatic Flow Control

Aro F02 Flow Control

Aro F03 Pressure Regulator

Aro Ingersoll Rand A212SS-120-A10058 Control Valve A212SS120A10058

Aro Ingersoll Rand P251SS-120-A-G Pneumatic Solenoid Valve P251SS120AG

Aro L26461-110 Pneumatic Air Filter 175 PSI 80 Deg C L26461110

Aromat GE130WUHP-SB1 Lamp Power Supply Ballast 130 W GE UHP GE130WUHPSB1

Aromat HL2-H-DC24V 24 VDC Relay AP522298K HL2HDC24V

Arrow 3203 BG Pneumatic Filter 3/8 3203BG

Arrow Hart AH9151N 20 Amp 125/250 V 3 P 3 W Safety Grip Plug  (TSC)

Arrow R353 Pneumatic Regulator 300 PSIG Max

Arrow SQF Exhaust Muffler Silencer 3/8

ARTX PB451US-N022-3 SK-1/4-5A-US 5 Micro Air Filter Assy PB451USN0223 SK145AUS

Asco 34200239 Pneumatic Regulator Filter

Asco Joucomatic 43005090 24 VAC 8 W Solenoid Valve

Asco Joucomatic 54101006 24 VDC Pneumatic Solenoid Valve 430 04869 43004869

Asco Joucomatic 54101010 24 VDC Solenoid Valve 54101010 54101010-24/DC

Asco Joucomatic 54101011 24 VDC Solenoid Valve 54101010 54101010-24/DC 430 04869

Asco Joucomatic 54191011 24 VDC Solenoid Valve 430 04869 43004869

Asco Red Hat 102-855 Rebuild Kit 102855  (TB)

Asco Red Hat 8210C94 5/8" Solenoid Valve 125 PSI 110/120 VAC

Asco Red Hat 8210G1 3/8" Solenoid Valve (TSC)

Asco Red Hat 8210G36 3/8" Solenoid Valve 125 PSI 110/120 VAC

Asco Red Hat 8210G54 1" Solenoid Valve 125 PSI 16.1 Watts 302283

Asco Red Hat 8214G20 1/2 " Solenoid Valve 316233

Asco Red Hat 8262A265 1/4" Solenoid Valve 110/120 VAC 302051

Asco Red Hat 8262B226 1/4" Solenoid Valve 110/120 VAC 302003