福建中立恒自动化设备有限公司
主营产品: 大型DCS系统备件,进口工业机器人备件,大型伺服系统电机驱动器,变频器,传感器,安全栅,编码器,电磁阀,流量计等机械或电气部件产品
0100-00720板卡等工控备件优势经销
发布时间:2024-12-29

福建中立恒自动化设备有限公司


目前,世界上有200多个厂家生产可编程序控制器产品,厂家有德国的西门子,美国的Rockwell(AB)、通用(GE),日本的三菱、欧姆龙,法国的施耐德等。

可编程序控制器总的发展趋势是向高集成度、小体积、大容量、高速度、易使用、高性能方向发展。具体表现在以下几个方面:

(1)向小型化、专用化、低成本方向发展

20世纪80年代初,小型PLC在价格上还高于小系统用的继电器控制装置。随着微电子技术的发展,新型器件大幅度的提高功能和降低价格,使PLC结构更为紧凑,功能不断增加,将原来大、中型PLC才有的功能移植到小型PLC上,如模拟量处理、数据通讯和复杂的功能指令等,但价格不断下降,真正成为继电器控制系统的替代产品。

(2)向大容量,高速度方向发展

大型PLC采用多微处理器系统,有的采用32位微处理器,可同时进行多任务操作,处理速度提高,特别是增强了过程控制和数据处理的功能。另外,存储容量大大增加。

(3)与计算机联系密切

从功能上看,PLC不仅能完成逻辑运算,且计算机的复杂运算功能在PLC中也进一步得到利用,从结构上看,计算机的硬件和技术越来越多地应用到PLC;从语言上看,PLC己不再是单纯用梯形图语言,而且可用多种语言编程,如类似计算机汇编语言的语句表,甚至可直接由计算机语言编程;在通讯方面,PLC与计算机可直接相连并进行信息传递。

(4)发展多样化

可编程序控制器发展的多样化体现在3个方面:产品类型、编程语言和应用领域。

(5)模块化

PLC的扩展模块发展迅速。功能明确化、专用化的复杂功能由专门模块来完成。主机仅仅通过通讯设备向模块发布命令和测试状态,这使得PLC的系统功能进一步增强,控制系统设计进一步简化。

(6)网络与通讯能力增强

计算机与PLC之间以及各个PLC之间的联网和通讯的能力不断增强,使用工业网络可以有效地节省资源、降低成本、提高系统可靠性和灵活性,致使网络的应用有普遍化的趋势。

(7)多样化与标准化

生产PLC产品的各厂家都在大力度地开发自己的新产品,以求占据市场的更大份额。因此产品向多样化方向发展,出现了欧、美、日多种流派。与此同时,为了推动技术标准化的进程。一些国际性组织,如国际电工委员会(IEC)不断为PLC的发展制定一些新的标准,如对各种类型的产品作一定的归纳或定义,或对PLC未来的发展制定一种方向或框架。

(8)工业软件发展迅速

与可编程序控制器硬件技术的发展相适应,工业软件的发展非常迅速,它使系统应用更加简单易行,大大方便了PLC系统的开发人员和操作使用人员。

可编程序控制器的输出信号类型可以是开关量、模拟量和数字量。输出单元从广义上分包含两部分:一是与被控设备相连接的接口电路,另一部分是输出的映像寄存器。

PLC运行时CPU从输入映像寄存器读取输入信息并进行处理,将处理结果放到输出映像寄存器。输出映像寄存器由输出点相对应的触发器组成,输出接口电路将其由弱电控制信号转换成现场需要的强电信号输出,以驱动电磁阀、接触器、指示灯等被控设备的执行元件。

GETTYS 11-0063-00 PC BOARD 11006300

GETTYS 11-0065-04 PC BOARD 11006504

GETTYS 11-0065-04 PC BOARD 11006504

GETTYS 11-0090-100 INTERFACE CARD 110090100

GETTYS 11-0090-100 INTERFACE CARD 110090100

GETTYS 11-0122-00 CONNECTION CARD 11012200

GETTYS 11-0122-00 CONNECTION CARD 11012200

GETTYS 14-0018-02 SERVO DRIVE FIRING CARD 14001802

GETTYS 14-0018-02 SERVO DRIVE FIRING CARD 14001802

GETTYS 44-0035-00 SYNC BOARD 44003500

GETTYS 44-0035-00 SYNC BOARD 44003500

GETTYS 44-0035-00 SYNC BOARD 44003500

GIDDINGS & LEWIS 501-02981-00 ALU BOARD 502-02721-50

GIDDINGS & LEWIS 501-02981-00 ALU BOARD 502-02721-50

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GIDDINGS & LEWIS 501-02983-02 CIRCUIT BOARD CONTROLLER 5010298302

GIDDINGS & LEWIS 501-02983-02 CIRCUIT BOARD CONTROLLER 5010298302

GIDDINGS & LEWIS 501-02983-02 CIRCUIT BOARD CONTROLLER 5010298302

GIDDINGS & LEWIS 501-02983-02 CIRCUIT BOARD CONTROLLER 5010298302

GIDDINGS & LEWIS 501-02984-01 CONSOLE INTERFACE BOARD 502-02724-01

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GIDDINGS & LEWIS 501-02984-01 CONSOLE INTERFACE BOARD 502-02724-01

Giddings & Lewis 501-03208-02 502-02820-02 Digitizing Ref Board 5010320802

Giddings & Lewis 501-03208-02 502-02820-02 Digitizing Ref Board 5010320802

GIDDINGS & LEWIS 501-03882-00 INTERFACE BOARD 5010388200

GIDDINGS & LEWIS 501-03882-00 INTERFACE BOARD 5010388200

GIDDINGS & LEWIS 501-03882-00 INTERFACE BOARD 5010388200

GIDDINGS & LEWIS 501-03882-00 INTERFACE BOARD 5010388200

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GIDDINGS & LEWIS 502-02250-00 PC BOARD RESET POWER NOR 5020225000

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GIDDINGS & LEWIS 502-02426-00 SIGNAL CONVERTER BOARD 5020242600

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GIDDINGS & LEWIS 502-02722-50 ADDRESS GENERATOR BOARD 5020272250

GIDDINGS & LEWIS 502-02722-50 ADDRESS GENERATOR BOARD 5020272250

GIDDINGS & LEWIS 502-02724-52 CONSOLE INTERFACE BOARD 5020272452

GIDDINGS & LEWIS 502-02724-52 CONSOLE INTERFACE BOARD 5020272452

GIDDINGS & LEWIS 502-02804-50 EIA DIGITIZING BOARD 501-03168-00

GIDDINGS & LEWIS 502-02804-50 EIA DIGITIZING BOARD 501-03168-00

GIDDINGS & LEWIS 502-02804-50 EIA DIGITIZING BOARD 5020280450

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GIDDINGS & LEWIS 502-02824-00 PC BOARD 5020282400

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GIDDINGS & LEWIS 502-03055-00 SERVO BOARD

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GIDDINGS & LEWIS 58009027 AMPCHECK BOARD

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GIDDINGS & LEWIS 58009055 TEMPCOMP BOARD

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GIDDINGS&LEWIS 871-20662-02 CONTROL BOARD

GIDDINGS&LEWIS 871-20662-02 CONTROL BOARD

GINGE 8161-00 PCB CARD 816100-06A

GINGE 8161-00 PCB CARD 816100-06A

GINGE 816100-06A PCB BOARD 81610006A / FAST  BY DHL & FEDEX

GINGE 816100-06A PCB BOARD 81610006A / FAST  BY DHL & FEDEX

GLEN CONTROL INC. 1532-003B PC BOARD 1532003B

GLEN CONTROL INC. 1532-003B PC BOARD 1532003B

GLEN CONTROL PC-2 BD-103 REV.A PC BOARD 1532-002B PC2BD103

GLEN CONTROL PC-2 BD-103 REV.A PC BOARD 1532-002B PC2BD103

GLENTEK AMP-0006 AMPLIFIER BOARD TAB 001 REV.G 7377-1002 AMP0006

GLENTEK AMP-0006 AMPLIFIER BOARD TAB 001 REV.G 7377-1002 AMP0006

GLUNZ & JENSEN 56039 FUSE BOARD

GLUNZ & JENSEN 56039 FUSE BOARD

GLUNZ & JENSEN 56039 FUSE BOARD

GLUNZ & JENSEN 56039 FUSE BOARD

GLUNZ & JENSEN 56039 FUSE BOARD

GLUNZ & JENSEN 56039 FUSE BOARD

GLUNZ & JENSEN 56039-C FUSE BOARD

GLUNZ & JENSEN 56039-C FUSE BOARD

GLUNZ & JENSEN 56039-C FUSE BOARD

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GLUNZ & JENSEN 56051-A PC BOARD 56051A

GLUNZ & JENSEN 56051-A PC BOARD 56051A

GLUNZ & JENSEN 56051-A PC BOARD 56051A

GLUNZ & JENSEN 56051-A PC BOARD 56051A

GLUNZ & JENSEN HPU-IV/10025324 CONTROL BOARD REV A HPUIV10025324 2006-37

GLUNZ & JENSEN HPU-IV/10025324 CONTROL BOARD REV A HPUIV10025324 2006-37


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