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。

SIEMENS PLC 6ES7 331-7PF01-0AB0 Analog Input Module   6ES7331-7PF01-0A

SIEMENS S7-300 SM322 6ES7 322-1BH01-0AA0 Output Module 6ES7322-1BH01-0AA0

Speed Sensor Module Switch Position Sensor For Audi Gear 2.0T 3.0T 0B5927321L

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Transmission Control Module for Jeep Chrysler 68249614AB 68249614AA 68294441AA

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  Beckhoff EL1809 Digital Input Module EL 1809

  BECKHOFF EL2904 Analog input terminal module

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  MITSUBISHI MR-J2S-100B AC Servo Drive Amplifier PLC Module 1000W 200V

  Siemens PLC Module 6ES7321-1BL00-0AA0 6ES7 321-1BL00-0AA0

  SEALED Allen Bradley 1769-IF4 /B CompactLogix 4-CH Analog Input Module

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 Factory Sealed Allen-Bradley 1794-IB32 Flex I/O Ser A Input Module

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 Sealed 1746-IB16 SER D SLC 16 Point DC Input Module

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 SIEMENS S7-300 SM322 6ES7 322-1BH01-0AA0 Output Module 6ES7322-1BH01-0AA0

BECKHOFF EL2904 Analog input terminal module

 AB  Factory Sealed 1756-EN2T Ser D ControlLogix EtherNet/IP Module 1756EN2T

 AB 1769-OF2 Allen-Bradley Ser B Compact I/O Analog Output Module  Sealed

 Beckhoff EK1100   Beckhoff Module Free Ship

 Siemens  TP177 6AV6 640-0CA11-0AXSHA24 HMI PLC Module CA

 SIEMENS PLC 6ES7 331-7PF01-0AB0 Analog Input Module   6ES7331-7PF01-0A

1734-IE4C AB Ser C 4 Point Analog Input Module  Factory Sealed USA Stock

1746-NI8 SLC 500 PLC Analog Input Module

  Sealed 1769-IQ16 /A CompactLogix 16 Pt 24VDC Input Module

  Sealed 1794-OB16 16-Point Digital Output Module

  Sealed 1794-TB3 Flex Terminal Base Module 1794TB3

 Allen-Bradley 1756-IR6I Ser A Analog Isolated ControlLogix PLC Module

  2085-OW8 Micro800 8 Point Relay Output Module

  Sealed 1794-OW8 Flex 8 Point Relay Output Module 1794OW8

  Sealed MicroLogix 1762-OB16 /A 24VDC Output Module

 AB  1756-OW16I SER A ControlLogix 16 Pt Digital Module

  Factory Sealed Allen Bradley 1734-IE2C PLC Input Module 1734IE2

 AB Sealed 1762-OW8 /A MicroLogix Relay Output Module

 POINT I/O 2 Point Analog Output Module 1734-OE2V

 Sealed 1794-IA8 SER A Flex 8 Point Digital Input Module 1794IA8

 Sealed 1794-IB32 FLEX I/O SER A Input Module 1794IB32

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AB  Sealed 1769-OB16 24VDC D/O Module **REAL USA SELLER**

AB 1734-OA4 POINT I/O 4 Point Digital Output Module 1734OA4

AB1734-IE2V POINT I/O 2 Point Analog Input Module USA SELLER

Factory Sealed 1734-OB4E Ser C 4 Point Output Module 1734OB4E

Genuine Sealed Allen-Bradley 1794-IE12 Flex 12 Point Analog Input Module

Micro800 4 Point Analog Output Module 2085-OF4

Sealed 1734-OB8E Ser C 8-Point Output Module 1734OB8E

 1734-IE8C Series C Point IO Analog Input Module

AB  Sealed 1794-IA16 Flex 16 Point Digital Input Module

AB 2085-OW8 Micro800 8 Point Relay Output Module

AB Sealed 1769-IA16 /A 120VAC D/I Module USA SELLER

Factory Sealed Allen-Bradley 20-750-ENC-20750ENCModule US

  Sealed Allen-Bradley 1734-OE4C POINT I/O 4 Point Analog Output Module

  Sealed Allen-Bradley 2085-IF8 Micro800 8 Point Analog Input Module

 Allen Bradley 1769-OF8C /A CompactLogix 8 Pt A/O Current Module 1769OF8C

 Allen Bradley 1794-AENTR AB I/O Module EtherNet IP Adaptor Ser A

 Allen Bradley 2080-IF2 2-channel Voltage Input Micro800 Plug-in Module

 Allen-Bradley Sealed 2085-IQ16 Micro800 Digital Input Module 2085IQ16a

 Sealed AB 1762-IF4 /B MicroLogix 4 Point Analog Input Module 1762IF4

 Sealed Allen Bradley 1756-OA16 Ser A ControlLogix 16 Point AC Output Module

 SEALED Allen Bradley 1769-IF4 /B CompactLogix 4-CH Analog Input Module

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 Sealed Allen-Bradley 2080-MOT-HSC SER A Micro800 250KHz HSC Plug-In module

AB  Factory Sealed 1756-EN2T Ser D ControlLogix EtherNet/IP Module 1756EN2T

AB 1769-OF2 Allen-Bradley Ser B Compact I/O Analog Output Module  Sealed

ABB FENA-1 Inverter Ethernet Adapter Module

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Beckhoff EK1100   Beckhoff Module Free Ship

BECKHOFF EL1088 PLC Module Expedited Shipping   EL 1088

Factory Sealed 1746-OW16 SLC 16 Point Digital Output Module

Factory Sealed Allen-Bradley 1794-IB32 Flex I/O Ser A Input Module

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Omron CJ1W-ID21PLC Input Module CJ1WID21  

Omron CJ1W-OD21Output Unit Programmable Logic Controller Module  

OMRON CQM1H-CPU6Programmable Controller PLC Module No Original  CA Shipping

Omron PLC Output Module CJ1W-OC21CJ1WOC21  

Siemens  TP177 6AV6 640-0CA11-0AXSHA24 HMI PLC Module CA

SIEMENS 6ES7 231-0HC22-0XA0 6ES7231-0HC22-0XA0 Analog Input Module Made in Germa

SIEMENS 6ES7153-1AA03-0XB0 6ES7 153-1AA03-0XB0 PLC Module

 Allen Bradley 1769-L18ERM-BB1B CompactLogix 0.5MB Controller-MOTION

Allen Bradley 1769-L18ERM-BB1B CompactLogix 0.5MB Controller-MOTION

Factory Sealed AB 1769-L19ER-BB1B CompactLogix 1MB Memory Controller

 AB  1769-L18ER-BB1B 0.5MB DI/O Controller **REAL USA SELLER**

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AB SEALED 1766-L32AWAA /C Micrologix 1400 Controller

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  Factory Sealed 1766-L32BWAA MicroLogix 1400 32 Point Controller

Allen Bradley SEALED 1766-L32BXBA MicroLogix 1400 32 Point Controller

AB  1762-L24BWA MicroLogix 1200 24 Point Controller

 US  Sealed Allen-Bradley 1766-L32BWA /C MicroLogix 1400 32 Point Control

  US  Sealed Allen-Bradley 1766-L32BWA /C MicroLogix 1400 32 Point Control

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Siemens Simatic S7 6ES7315-2AG10-0AB0 6ES7 315-2AG10-0AB0 CPU315-2 DP Controller

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AB 2080-LC50-24QWB Micro850 24 I/O EtherNet/IP Controller

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AB 2080-LC30-24QWB Micro830 24 I/O Controller

AB 2080-LC50-24QBB Micro850 24 I/O EtherNet/IP Controller

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