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 1732ES-IB8XOB8 /A ArmorBlock ENet 8/8 I/O Module

Allen Bradley 1734-4IOL Ser A Point I/O 4-Channel IO-Link Master Module

Allen Bradley 1734-4IOL Series A Point I/O 4-Channel IO-Link Master Module

Allen Bradley 1734-4IOL Series A Point I/O IO-Link Master Module

Allen Bradley 1734-AENT Ser B POINT I/O EtherNet/IP Twisted Pair Adapter 24VDC

Allen Bradley 1734-AENTR /B POINT I/O 2-Port EtherNet/IP Twisted Pair Adapter

Allen Bradley 1734-EP24DC /B Point I/O POWER/BUS Expansion PS

Allen Bradley 1734-IB8K /D POINT I/O 8-Pt 24VDC Sink Input Module

Allen Bradley 1734-IE2V /C POINT I/O 2-Channel Analog Voltage Input

Allen Bradley 1734-IE4CK Ser C POINT I/O 4-Ch High Density Current Input Module

Allen Bradley 1734-IR2 Ser C POINT I/O 2-Channel Single-Ended RTD Input Module

Allen Bradley 1734-IT2I /C POINT I/O 2-Ch Thermocouple Input Module

Allen Bradley 1734-OA4 /C POINT I/O 4-Ch 1200VAC Output Module

Allen Bradley 1734-OB4K /C POINT I/O 4-Point 24VDC Output Module

Allen Bradley 1734-OB8K Ser C POINT I/O 8-Ch 24VDC Output Module

Allen Bradley 1734-OB8S /B POINT I/O 8-Ch Safety Output Module

Allen Bradley 1734-OE4C Ser C POINT I/O 4-Channel Analog Current Output Module

Allen Bradley 1734-OW4 Series C POINT 4-P N.O. Relay Output Module

Allen Bradley 1734-OX2 /C POINT I/O 2-Relay Digital Contact Output

Allen Bradley 1738-OB8EM8 /A ArmorPoint Digital Output Module

Allen Bradley 1738-OB8EM8 Ser A  8-Ch 24V DC Output ArmorPoint

Allen Bradley 1738-OV4EM12 /A ArmorPoint Digital 4-Ch Output Module 24V

Allen Bradley 1738-OV4EM12 /A ArmorPoint Digital Output Module

Allen Bradley 1746-HSCE2 /A SLC 500 Multi-Channel High-Speed Counter 4-In/4-Out

Allen Bradley 1746-IA16 /C SLC 500 16-Channel 120VAC Input Module

Allen Bradley 1746-IA4 /A SLC 500 4-Channel AC Digital Input Module

Allen Bradley 1746-IB16 /C SLC 500 16-Ch Sinking 10-30VDC Input Module

Allen Bradley 1746-IV32 /D SLC 500 24V DC Input Module

Allen Bradley 1746-NIO4V /A SLC 500 Analog 2/2 Combination Module

Allen Bradley 1746-NIO4V Ser A SLC 500 2 In 2 Voltage Out Analog Module

Allen Bradley 1746-NIO4V Series A SLC 500 Analog Combination Module

Allen Bradley 1746-NO8I /A SLC 500 8-Channel 16-Bit Analog Current Output Module

Allen Bradley 1746-OB16 Ser D SLC 500 16-Ch 24VDC Sourcing Output Module

Allen Bradley 1746-OV32 /D SLC 500 32-Channel DC Output Module

Allen Bradley 1746-OV32 /D SLC 500 32-Channel DC Output Module 5-50V DC

Allen Bradley 1746-OX8 Ser A SLC 500 8-Pt Isolated Relay Output Module

Allen Bradley 1746-P4 /A SLC 500 10A Rack Mount Power Supply

Allen Bradley 1747-DTAM-E Series D SLC 500 Data Table Access Module 24VDC

Allen Bradley 1747-L40B Series B SLC 500 24DI/16DO 120/240VAC Power Controller

Allen Bradley 1747-L532 /F SLC 5/03 CPU Processor Module 16K

Allen Bradley 1747-L551 /A SLC 500 SLC 5/05 Controller 16K Memory E-Net/RS-232

Allen Bradley 1747-M2 /A SLC 500 4K EEPROM Memory Module

Allen Bradley 1756-A13 Series B 13-Slot ControlLogix Chassis

Allen Bradley 1756-A7K /C ControlLogix 7-Slot Chassis Coated

Allen Bradley 1756-CN2R /B ControlLogix ControlNet Bridge Module

Allen Bradley 1756-CN2R /C ControlNet Redundant Bridge Module

Allen Bradley 1756-DHRIO /E ControlLogix DH/RIO Comm Interface

Allen Bradley 1756-DHRIO /E ControlLogix DH/RIO Communication Interface Module

Allen Bradley 1756-DNB /E ControlLogix DeviceNet Bridge Scanner Qty

Allen Bradley 1756-EN2T /D ControlLogix EtherNet 10/100 Mbps Bridge

Allen Bradley 1756-EN2T /D ControlLogix EtherNet/IP Bridge Module

Allen Bradley 1756-EN2T Ser D ControlLogix EtherNet/IP Bridge

Allen Bradley 1756-EN2TR /C ControlLogix 2-P EtherNet Interface Module

Allen Bradley 1756-ENBT /A ControlLogix EtherNet/IP Bridge

Allen Bradley 1756-IB16IF /A ControlLogix Fast 16-P 10-30VDC Input

Allen Bradley 1756-IB32 /B ControlLogix 32-P 10-31VDC Input Module

Allen Bradley 1756-IB32 /B ControlLogix Digital DC Input Module

Allen Bradley 1756-IF6CIS /A ControlLogix 6-Ch In-Current Sourcing Input Module

Allen Bradley 1756-IF8H Ser A 8-Ch HART Analog Differential Input Module

Allen Bradley 1756-IM16I /A ControlLogix Isolated Input Module 159-265V AC 16-P

Allen Bradley 1756-IT6I /A ControlLogix 6-Ch TC/mV Input Module

Allen Bradley 1756-IT6I /A ControlLogix Isolated TC/mV 6-Ch Input

Allen Bradley 1756-L55M22 Series A ControlLogix Logix 5555 Processor 750 KB

Allen Bradley 1756-L61 Ser B ControlLogix Logix5561 2MB Processor

Allen Bradley 1756-L61 Series A ControlLogix Logix5561 2MB Memory Controller

Allen Bradley 1756-L61 Series B ControlLogix Logix5561 2MB Controller

Allen Bradley 1756-L62 Series B ControlLogix Logix5562 4MB Memory Processor

Allen Bradley 1756-L62S Series B GuardLogix Logix5562S Processor 4/1 MB Memory

Allen Bradley 1756-L72S /B GuardLogix Logix5573S 4MB/2MB Standart/Safety Memory

Allen Bradley 1756-L8SP /B GuardLogix 5580 L8 Safety Partner

Allen Bradley 1756-LSP /B ControlLogix GuardLogix Safety Partner CPU

Allen Bradley 1756-M14 /A ControlLogix Logix5555 3.5Mbyte Memory

Allen Bradley 1756-OA16I /A ControlLogix Isolated Output Module

Allen Bradley 1756-OA8 /A ControlLogix 8-Point 74-265VAC Digital Output Module

Allen Bradley 1756-OA8E /A ControlLogix 8-Pt 74-132VAC Output

Allen Bradley 1756-OB16I /A ControlLogix 10-30VDC 16-Pt Isolated Output Module

Allen Bradley 1756-OB16IS /A ControlLogix DC Scheduled Output

Allen Bradley 1756-OF8 /A ControlLogix 8-p Analog Output Module

Allen Bradley 1756-OF8 /B ControlLogix Analog Output Module

Allen Bradley 1756-OV32E Ser A ControlLogix DC F Sinking Output 10-30V DC

Allen Bradley 1756-OX8I /A ControlLogix AC/DC Isolated Relay Output Module 8-Ch

Allen Bradley 1756-PSCA2 /A ControlLogix Redundant Power Supply Chassis Adapter

Allen Bradley 1760-L12BWB-NC /B Pico Controller 8-In 4-Out 24V

Allen Bradley 1761-L16BBB /E MicroLogix 1000 CPU 24V In/Power Relay/MOSFET Out

Allen Bradley 1761-L16BWB /E MicroLogix 1000 24VDC Power Controller

Allen Bradley 1762-IA8 Ser A MicroLogix 8-P 120VAC Input Module

Allen Bradley 1762-IF4 /A MicroLogix 4-Ch Current/Voltage Analog Input Module

Allen Bradley 1762-IF4 Ser B MicroLogix 4-Channel Current/Voltage Input Module

Allen Bradley 1762-IQ16 /B MicroLogix 1200 24V DC Input Module

Allen Bradley 1762-IQ8 /A MicroLogix 8-P 24VDC Digital Input Module

Allen Bradley 1762-L24BWA Series C MicroLogix 1200 Controller

Allen Bradley 1762-L40BXB /C MicroLogix 1200 40-Pt I/O 24VDC Controller

Allen Bradley 1762-OB16 Ser A MicroLogix 16-Pt 24VDC Output Module

Allen Bradley 1762-OB32T /A MicroLogix 32-Pt 24VDC Source Digital Output Module

Allen Bradley 1762-OF4 /A MicroLogix 4-Ch Voltage/Current Analog Output Module

Allen Bradley 1762-OF4 /B MicroLogix 4-Ch Voltage/Current Analog Output Module

Allen Bradley 1763-MM1 Series A MicroLogix 1100 128KB Memory Module

Allen Bradley 1764-MM1RTC /A MicroLogix 1500 8 Kbytes Memory Module with RTC

Allen Bradley 1764-MM2RTC /A MicroLogix 1500 16KB Memory Module w/ RTC

Allen Bradley 1764-RTC Series A MicroLogix 1500 Real-Time Clock RTC Module

Allen Bradley 1766-MM1 /A MicroLogix 1400 384 KB Memory Module

Allen Bradley 1768-ENBT /A CompactLogix ENet/IP Bridge Module

Allen Bradley 1768-ENBT Ser A CompactLogix ENet/IP 10/100 1769-L4x Bridge Module