福建中立恒自动化设备有限公司
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。
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WOODWARD 5461-538 REV.A 11417961 9502
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MITSUBISHI CORE STATOR SJ-2B4606K 2736-00-204-01 (AC7.5/5.5) for VK-45II SPINDLE
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SIMATIC S5 SIEMENS 6ES5955-3LC42 POWER SUPPLY C98043-A1390-L5 6ES5955-3LC41
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TELEMECANIQUE ATV58HU41N4Z VFD-017 0.75KW 1HP 380/500V
260-0600-086 REV C
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OVATION 17070023 DIGITAL OUTPUT 5-60VDC 1C31122G31
ANTEC PP-253X 250W SWITCHING POWER SUPPLY 115/230V 4-7A 50/60HZ
ASCO RED-HAT II 304032 2-125PSI A941982 8222G47 1/2' PIPE 10.1W
TASHIKA TD-24
TAKATORI PULSE CONTROLER NO.2 E020I830 B
MCDONNELL MILLER FS5-1 FLOW SWITCH 1 NPT
TAKATORI AC.DC OUTPUT NO.2 E020I8I0B
TAKATORI NO.1 CONTROL E083A
TAKATORI NO.I CONTROL E083B
TAKATORI AC.DC OUTPUT NO.2 E020I8I0C
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JOHNSON CONTROLS V67842ET3008D0 1.6CV T284F RY0245
GEN 34208295020E Ver A2-RC Cntrol Board / Module
VERSA CSG-3321-316-LA-L14-XX-D024 VALVE,THREE-WAY EXT-113733 A07-17
K21R 63 K 4 H VEM MOTORS THURM GMBH 50/60HZ 380/420 VOLTS
ABB RINT-5211 ACS800 1.5KW
SIEMENS 6AA5103-0AC70 C79040-A32-C170-4-87
NNB GAMMA-METRICS 100089 PC BOARD PN 100091-001
NNB GAMMA-METRICS 100021 F 100019 C19
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NNB GAMMA-METRICS 100025
ALLEN BRADLEY 1784-PCM4/B CABLE
LYTRON 6110 G14 630020611 MUFFIN MX2B3
SMC NAC5000-N06-3
RELIANCE ELECTRIC 0-57636-C 115V AC/DC 115V AC
KELLEY 061-582 Limit Switches
HPS TITAN 31GW E258346 M07L 00177564 QC25LECB TRANSFORMER
NIB GE GENERAL ELECTRIC CR305B003
NNB ALLEN BRADLEY PHOTOSWITCH 871TM-DN5NP18-H2
NNB Schneider Automation Telemecanique Advantys STB ACO 0220 EACH
MATSUSHITA PMH TIMER PMH-30M-DC24V AT4139 24VDC 7A 250V AC 30M NATIONAL RPM
ENERPAC V-82 NEEDLE VALVE
MOTOROLA 84-W8295B01 MVME 211
SIEMENS 3TY6 520-0A 3TB52
RELIANCE KYOSAN DBCC-004 0-48680-301 MD-68227 KCP 237220019A
NACHI FUJIKOSHI RTC201 S10-B01 ROBOT TEACH PENDANT CONTROL CABLE 28316 shly
HYPERTHERM 128650
ESAB 38130 Welding PCB Dmy635-219
EM201-K2 Manufactured by CLIP ELEKTRONIC
BM3546T MOTOR 1- HP 1725RPM 3PH
TENOR 250-3-2066 MODEL L-U DRIVE MODULE CARD PRINTED CIRCUIT
MEASUREX 052980 SINGLE CHANNEL AMPLIFIER
Schleicher UBE 32 10D .. E
SCHNEIDER ABE7-S16E2F0 30VDC MAX/0.015A shly
JL INFORMATION SYSTEMS 91011100 NRS M/B-C PROCESSING IT broken label
WEIDMULLER 041216 SAKR DIN Rail Mot Terminal Block 2 Ways 22 AWG 12 AWG 100 PK
CATERPILLAR CORE 156-1551 / 1561556 IN PACKAGE HEAVY EQUIPMENT EXCAVATOR shl
RELIANCE ELECTRIC 0-51377-25 801414-43A 67556-2 8152
Lithonia Lighting F2Esb1R-120/277-El-N F2Esb1R120277Eln.
SIEMENS SIMATIC S7 1P 6ES7 153-2BA02-0XB0 E-STAND:1
SMC RFKSS-J300001K
Schneider TSXPSY8500 Power Supply Module 100/240V
GE FANUC IC693MDL632D INPUT 125 VDC 8PT POS NEG LOGIC LI 66.1
Allen Bradley 440R-N23132 C MFG: Safety Relay GuardMaster MSR127TP Inp
ARKTITE 10321A 60A 3P
TRERICE 91000 3/4 100-190 10754782
NNB BURNS 18123-125-14S-A TE-241-96
HONEYWELL 621-0022-ARC 50RMS Y942902000005 shly
Black iversal Rj Tool Kit FT047A
REXROTH RKH0002 1307129/150 4.00M 1/1
MSA 470388 REV A MICROPROCESSOR 470386 REV 2
MGM BRAKES 30LP3 MGM 3231062 5804540 R041519 TCO-1 76-78MM
Westmark ZEBRA PRINTER 130MM X 450M CASE OF 24 Premier sama as ZEB130450PWR
ALLEN-BRADLEY 126511 Allen Bradley 126510 Rev 02 1395 DC Drive Board
MARKEM-IMAJE 34986.BA SD2 PRINTHEAD ASSEMBLY 0.138KG
BALDOR DODGE P36-14M-40-SF HTD SPKT 110785
HITACH SEIKI BPSQ2 16-14-00-01
BASLER BE31168001 G 1613
ABB SACE T6H-D 800 600V 50/60HZ
REES 04958-125 ROPE OPERATED SWITCH 5 TRIP FORCE
Sensata Airpax Circuit breaker 3p 219-3-8303-3 26AMPS 480Vac 66U1-7842-3
Sensata Airpax Circuit breaker 3p 219-4-21341-5 50/60HZ 1820Y15A
Sensata Airpax Circuit breaker 3p 219-4-6388-086 50/60HZ 1846Y12A
Sensata Airpax Circuit breaker 3p 219-3-37460-2 100AMPS 480Vac HH83XB973
SMC SUPER MIST SEPARATOR AME450-N06 1.0MPA 2000 I/MIN
FESTO VALVE CPV 18-VI 18220 1/11 -0,9... 10 Bar 12/14 3..8 Festo 7x 163191 A70
SQUARE D NEMA SIZE 4 L2 8502 SERIES A 600V MAX
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