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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FADAL 4020 CNC VERTICAL MILL ACME TRANSFORMER T-2-53042-S 120X240 2.0 KVA

MIYANO FNC-3BC LATHE TOOL HER BLOCK TOOLING 55785301 55785300  PIECES

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DAIKIN SOLENOID CONTROLLED VALVE KSO-G02-4CA-20-N 20 6201 MATSUURA RA-3FDC CNC

TOSHIBA SERVO MOTOR RA12M 300 W 12M1-0300EB SBR-62T2-20 RA12M300W RA12M300 W

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KURODA HI-ROTOR IT PR-300S MATSUURA 760V2 CNC CNC MILL  PIECES

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VOGEL LUBRICATION SYSTEM 122 049 301 110/220V 122049301 LUBE TANK CHARMILLES

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FANUC CIRCUIT BOARD A16B-1211-0946

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FANUC WIRE TERMINAL  A290-0854-X401 A290-0854-X402 HARDINGE CONQUEST 51 CS-51

FANUC PULSE CODER AA64 A860-0360-V501 SS-841964 010607  PIECES

FANUC SPINDLE MOTOR RED CAP MOTOR COVER A290-0856-X501

TOTOKU DISPLAY MONITOR MDT947B-1B A61L-0001-0092

CHARMILLES ROBOFIL  SI CNC EDM SONY MPF920-D 04H7405 FRU93F2361 FLOPPY DISK

CHARMILLES ROBOFIL  SI CNC EDM SONY MPF920 FLOPPY DISK DRIVE

SIEMENS 3-542-1276A CIRCUIT BOARD 3542-1276A

OKUMA BOARD E4809-770-120-A

OKUMA OSP7000 3.5" FDD IT FLOPPY DISK DRIVE YD-702D-6037D-A

FADAL CNC 88 P/N: 126092743000 12627-099/1000 BS 5195QY KEYBOARD

RTA PAVIA ITALY BOARD MM4 4844 MM8 9703

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1996 BROTHER TC-324N CNC VERTICAL MILL Z AXIS WAY COVER SHIELD BALLSCREW

BANNER ENGINEERING BANNER MSCA-1 MINI SCREEN CONTROLLER ENCLOSURE  MSA-PSA-1

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MACOME FANUC MAGNET IT MG-1378 MAGNETIC SENSOR MG-1378-BS N EACH 1

YASKAWA CIRCUIT BOARD JANCD-GCP02 DE6428363 MORI SEIKI SL4 CNC  PIECES

TOTOKU DISPLAY MONITOR A61L-0001-0093 MDT947B-2B B178748

YASKAWA CONTROLLER DESIG PCB CIRCUIT BOARD ETC005812 JPAC-C061 FT6209912-1-3

CINCINNATI AVENGER 250MT CNC TOUCH PROBE EYE TOOL PRE SETTER METROL H-4A-12-77

KIA KIATURN KT 28L CNC LATHE TOOL TOUCH PROBE EYE H4A-0 SETTER PRE SETTER METROL

FANUC CIRCUIT BOARD A20B-1004-0070 SPINDLE MOTOR ENCODER A350-1004-T072

KLOCKNER MOELLER TRIP SWITCH ZM6-160 100-160 NZM 6-160 MATSUURA MC-800 BREAKER

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CHARMILLES ROBOFORM RS232 VIDEO RELAY BOARD 856 1250 E TES 1063 2000 EDM

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SPIRE I:V TEST INTERFACE BOARD 1013 906-0401 18-07 36056 906-0200 CELL SORTER

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DAIKIN DIRECTIONAL VALVE KS0-G03-2CA-10 12 7325 100V AC KS0-G03 KSO-G03-2CA-10

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LNS 3~MOT 80 719082101H0091/Z04 374646 SNF 80/2C-11 BAR FEEDER MOTOR

HAAS OL-1 SONY CNC LATHE FLOPPY DISK DRIVE Z/161 MPF920 4-676-593-01 MSAP020S01

SUMITOMO ORBIT MOTOR MOD. NO. H-070DA2F-J 419

PARKER HYDRAULIC VALVE IT D1VW4CJWF 70 24VDC CNC D1VW4CJWF70  PIECES

EMCO DATA CONTROLLER BOARD R3D415000 R3D415010 CNC 373 R3D415010

SERMETO GEAR MOTOR N 115433 SA310T71C6 870714 SEW TOYODA FV-65 CNC CONVEYOR MILL

SEW-EURODRIVE MOTOR GEAR R40DT71K4 870026184 8 1.00" DFT71K4

FANUC AC SERVO MOTOR M6/3000 A06B-0162-B175 #0006 C985C2262

SEIKI CIRCUIT BOARD SLDS-4 09-05-00-00 TOP BOARD ONLY

BALL DISPLAY MONITOR CD9 7-022-0107 5-014-0383A CE284M9P31GE CINCINNATI

YASKAWA CIRCUIT BOARD JANCD-FC200-1 REV.E DF9200704-A0 MATSUURA CNC MILL

2001 CHARMILLES ROBOFIL 690 EDM BOARD CT8132600 B 208569240 B CT8132600-B 15X

GE FANUC AXIS POSITIONING MODULE IC655APU521B CNC IC655APU521 B EACH 1