0100-00538板卡等工控备件优势经销

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。

ALLEN BRADLEY 1606-XLRED20-30 DUAL REDUNDANCY MODULE SER A

ALLEN BRADLEY 170014 CONTROL BOARD

ALLEN BRADLEY 170014 CONTROL BOARD

ALLEN BRADLEY 170014 PC BOARD REV.03

ALLEN BRADLEY 170014 PC BOARD REV.03

ALLEN BRADLEY 170014 REV. 2 PC BOARD

ALLEN BRADLEY 170014 REV. 2 PC BOARD

ALLEN BRADLEY 1720-A1804 BOARD 1720A1804

ALLEN BRADLEY 1720-A1804 BOARD 1720A1804

ALLEN BRADLEY 1720-B1404 BOARD

ALLEN BRADLEY 1720-B1404 BOARD

ALLEN BRADLEY 1720-B1806 BOARD

ALLEN BRADLEY 1720-B1806 BOARD

ALLEN BRADLEY 1720-L002 BOARD 1720L002

ALLEN BRADLEY 1720-L002 BOARD 1720L002

ALLEN BRADLEY 1720-L004 BOARD 1720L004

ALLEN BRADLEY 1720-L004 BOARD 1720L004

ALLEN BRADLEY 1720-L202 BOARD

ALLEN BRADLEY 1720-L202 BOARD

ALLEN BRADLEY 1720-L204 BOARD 1720L204

ALLEN BRADLEY 1720-L204 BOARD 1720L204

ALLEN BRADLEY 1720-L310 BOARD

ALLEN BRADLEY 1720-L310 BOARD

ALLEN BRADLEY 1746-IB32 SLC500 DC-SINK INPUT MODULE SER D

ALLEN BRADLEY 1756-CNBR CONTROLNET COMMUNICATION BRIDGE SER E

ALLEN BRADLEY 1771-RTP3 TERMINAL BOARD 1771-RP,RTP3 1771RTP3

ALLEN BRADLEY 1772-LG BOARD 1772LG

ALLEN BRADLEY 1772-LG BOARD 1772LG

Allen Bradley 1784-CF128 Industrial CompactFlash Memory Card 128MB Capacity

ALLEN BRADLEY 1784-KTCX15 INTERFACE CARD SER B 96281775 1784KTCX15

ALLEN BRADLEY 1784-KTCX15-B COMMUNICATION INTERFACE CARD 1784KTCX15B

ALLEN BRADLEY 1794-CE3 FLEX I/O INTERCONNECT CABLE CLASS 2

ALLEN BRADLEY 1794-IB32 FLEX I/O 24VDC SINK INPUT MODULE REV: A01

ALLEN BRADLEY 1794-OF4I FLEX I/O ISOLATED ANALOG OUTPUT 82142

ALLEN BRADLEY 1794-TB32 FLEX I/O 32PT TERMINAL BLOCK SER A REV A01

ALLEN BRADLEY 1794-TB3TS FLEXBUS I/O TERMINAL BASE UNIT 96251675 REV.B01

ALLEN BRADLEY 1794-TBNF FLEX I/O FUSE TERMINAL BLOCK REV: E01

ALLEN BRADLEY 193156 CONTROL BOARD REV.11 6SB

ALLEN BRADLEY 193156 CONTROL BOARD REV.11 6SB

ALLEN BRADLEY 193156 CONTROL BOARD REV.11 6SB

ALLEN BRADLEY 193156 CONTROL BOARD REV.11 6SB

ALLEN BRADLEY 200769 FIELD REGULATOR BOARD M003104843

ALLEN BRADLEY 2090-U3BK-D4401 BREAKOUT BOARD KIT SER.D 2090U3BKD4401

ALLEN BRADLEY 20BD052A0AYNAND0 POWERFLEX 700 DRIVE 40HP SER.B 20-HIM-C6S

ALLEN BRADLEY 20DE3P9A3EYNANASE POWERFLEX 700S AC DRIVE 20D SER A 3HP

ALLEN BRADLEY 20P41AD167RA0NNN POWERFLEX DC DRIVE 100 HP 460V SER.A

ALLEN BRADLEY 2361-SPM01A FEEDBACK BOARD SERIES C 2361SPM01A

ALLEN BRADLEY 2361-SPM03A ARMATURE PULSE TRANSFORMER PCB SER C 2361SPM03A

ALLEN BRADLEY 25A-D4P0N104 AC DRIVE POWER FLEX 523 SERIES B 25AD4P0N104

ALLEN BRADLEY 2750-DP CIRCUIT BOARD 2750DP REPAIRED

ALLEN BRADLEY 2801-N27 I/O INTERFACE W/ 1781-A16A PC BOARD 2801N27

ALLEN BRADLEY 3400-TB BOARD SGHF-1000A P/N 200285 DDC

ALLEN BRADLEY 3500-C03 CONTROL BOARD SERIES A REV. N, 3500C03

ALLEN BRADLEY 40382-226-5 SNUBBER BOARD

ALLEN BRADLEY 40382-226-5 SNUBBER BOARD

ALLEN BRADLEY 40382-226-5 SNUBBER BOARD

ALLEN BRADLEY 40382-226-5 SNUBBER BOARD

ALLEN BRADLEY 42305-052-04 MAIN CONTROL BOARD 4230505204

ALLEN BRADLEY 42336-172-52 CONTROLLER BOARD 115V 4233617252

ALLEN BRADLEY 459221-0071 REPLACEMENT RELAY BOARD 4592210071 1745-R1

ALLEN BRADLEY 50373 CONTROL/SIGNALING CARD

ALLEN BRADLEY 50373 CONTROL/SIGNALING CARD

ALLEN BRADLEY 50386 VOLTAGE SENSING PC BOARD

ALLEN BRADLEY 50386 VOLTAGE SENSING PC BOARD

ALLEN BRADLEY 50387-002 MODULATOR BOARD 50387002

ALLEN BRADLEY 50387-002 MODULATOR BOARD 50387002

ALLEN BRADLEY 50404-001 INTERFACE BOARD 50404001

ALLEN BRADLEY 50404-001 INTERFACE BOARD 50404001

ALLEN BRADLEY 50904 SIGNAL BOARD REV.03

ALLEN BRADLEY 50904 SIGNAL BOARD REV.03

ALLEN BRADLEY 50905-002 DRIVER BOARD 50905002

ALLEN BRADLEY 50905-002 DRIVER BOARD 50905002

ALLEN BRADLEY 50906 PC BOARD REV. D

ALLEN BRADLEY 50906 PC BOARD REV. D

ALLEN BRADLEY 50916 CONTROL BOARD REV.03

ALLEN BRADLEY 50916 CONTROL BOARD REV.03

ALLEN BRADLEY 509-A0D-XXX MOTOR STARTER SER B 595-A CONTACTOR SER C

ALLEN BRADLEY 5250-MLP2/B DAUGHTERBOARD 5250-LP/B HOST BOARD

ALLEN BRADLEY 6217-973 UDB PC BOARD 6217973