推送:SP00858-01省市县区域/直送2023全+境+派+送
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,比较zhuming的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gaoji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。
BAY CONTROLS 7010-4 CPU BOARD REV C 70104
BAY CONTROLS CN-AIM CIRCUIT BOARD CNAIM REV D1
BAY CONTROLS CN-AIM CIRCUIT BOARD CNAIM REV D1
BAYLOR 55855 AUXILIARY CIRCUIT BOARD 55856 REV.A
BAYLOR 55855 AUXILIARY CIRCUIT BOARD 55856 REV.A
Baylor 56036 ground detection pcb board
Baylor 56036 ground detection pcb board
Baylor Company 55855 55856-2 Auxiliary Board PCB Card Circuit REV.A
BAYLOR COMPANY ALARM PCB 56037 REV C ASSY 56038 REV E
BAYLOR COMPANY BB75A HARD FIRING PCB
BAYLOR COMPANY BB75A HARD FIRING PCB
BAYLOR COMPANY PCB 56037 CARD
BAYLOR COMPANY PCB 56037 CARD
BAYLOR COMPANY PCB NO 55853 ASSY NO 57336/55854 REV C
BAYLOR D52620 DRILL ASSIST PCB REV. C BOARD NO D52621
BBC GJR2 3047 11 P1 10UA26 PCB CARD GJR2304711P110UA26
BBC LT480 PCB CARD GNT 7081 301R0001
BBC LT480 PCB CARD GNT 7081 301R0001
BBC RT480 PCB CARD GNT 6033 920/B RT480B
BBC RT480 PCB CARD GNT 6033 920/B RT480B
BBC RT480 PCB CARD GNT 6033 920/B RT480B
BBC RT480 PCB CARD GNT 6033 920/B RT480B
BBC RT481 PCB CARD GNT 6033491/F
BBC RT481 PCB CARD GNT 6033491/F
BBC SR 01 PCB CARD GVT 360 3261 SR01 GVT3603261
BBC SR 01 PCB CARD GVT 360 3261 SR01 GVT3603261
BBC SR 02 PCB CARD GVT 360 3262 SR02 GVT3603262
BBC SR 02 PCB CARD GVT 360 3262 SR02 GVT3603262
BBC SR 09 PCB CARD GVT 360 3269 GVT3603269
BBC SR 09 PCB CARD GVT 360 3269 GVT3603269
BBC SR 09 PCB CARD GVT 360 3269 GVT3603269
BBC SR 09 PCB CARD GVT 360 3269 GVT3603269
BBC SR 09 PCB CARD GVT 360 3269 GVT3603269
BBC SR 09 PCB CARD GVT 360 3269 GVT3603269
BBC SR 13 PCB CARD GVT 360 3273 GVT3603273
BBC SR 13 PCB CARD GVT 360 3273 GVT3603273
BBC SR 14 GVT 360 3274 PCB CARD SR14 GVT3603274
BBC SR 14 GVT 360 3274 PCB CARD SR14 GVT3603274
BBC SR 14 GVT 360 3274 PCB CARD SR14 GVT3603274
BBC SR 14 GVT 360 3274 PCB CARD SR14 GVT3603274
BBC SR 16 PCB CARD GVT 360 3276 SR16 GVT3603276
BBC SR 16 PCB CARD GVT 360 3276 SR16 GVT3603276
BBC SR 17 PCB CARD GVT 360 3277 SR17 GVT3603277
BBC SR 17 PCB CARD GVT 360 3277 SR17 GVT3603277
BBC SR 18 PCB CARD GVT 360 3278 SR18 GVT3603278
BBC SR 18 PCB CARD GVT 360 3278 SR18 GVT3603278
BBC SR 18 PCB CARD GVT 360 3278 SR18 GVT3603278
BBC SR 18 PCB CARD GVT 360 3278 SR18 GVT3603278
BCI 20-005-000 CIRCUIT BOARD 20005000
BCI 20-005-000 CIRCUIT BOARD 20005000
BE188_G PCB CARD 41841 0337
BE188_G PCB CARD 41841 0337
BECK 13-1945-01 PCB CIRCUIT BOARD 13194501
BECK 13-1945-01 PCB CIRCUIT BOARD 13194501
BECK 13-1945-01 PCB CIRCUIT BOARD 13194501
BECK 13-1945-01 PCB CIRCUIT BOARD 13194501
BECK 13-1945-01C CIRCUIT BOARD 13-2245-03 13194501C
BECK 22-4009-59 DRIVE CARD ASSEMBLY 22400959
BECK 22-4009-59 DRIVE CARD ASSEMBLY 22400959
BECKHOFF BC3100 BUS TERMINAL CONTROLLER
BECKHOFF BC3100 BUS TERMINAL CONTROLLER
BECKHOFF C1300 BOARD C1300 C1220H05
BECKHOFF C1300 BOARD C1300 C1220H05
BECKHOFF C1300 BOARD C1300 C1220H05
BECKHOFF C1300 BOARD C1300 C1220H05
BECKMAN 648713 SERVO BOARD 648790
BECKMAN 648713 SERVO BOARD 648790
BECKOFF CP9035 CP LINK CARD
BEHR 74007 CIRCUIT BOARD
BEHR 74007 CIRCUIT BOARD
BEHR 74007 CIRCUIT BOARD
BEHR 74007 CIRCUIT BOARD
BEKUM 4012-140-82092 TIMER BOARD 401214082092
BEKUM 4012-140-82092 TIMER BOARD 401214082092
BEKUM 4012-140-82092 TIMER BOARD 401214082092
BEKUM 4012-140-82092 TIMER BOARD 401214082092
BEKUM 4012-140-82102 PC BOARD 401214082102
BEKUM 4012-140-82102 PC BOARD 401214082102
BEKUM 4012-140-82102 PC BOARD 401214082102
BEKUM 4012-140-82102 PC BOARD 401214082102
BEKUM 4012-140-85791 PC BOARD 401214085791 / 401215154341
BEKUM 4012-151-28131 AMPLIFIER CARD 401215128131
BEKUM 4012-151-28131 AMPLIFIER CARD 401215128131
BEKUM 4012-151-32681 CIRCUIT CARD 401215132681
BEKUM 4012-151-32681 CIRCUIT CARD 401215132681
BEKUM 4012-151-32691 PC BOARD 401215132691
BEKUM 4012-151-32691 PC BOARD 401215132691
BEKUM 4012-151-32701 AMPLIFIER CARD 401215132701
BEKUM 4012-151-32701 AMPLIFIER CARD 401215132701
BEKUM 4012-151-32711 AMPLIFIER CARD 401215132711
BEKUM 4012-151-32711 AMPLIFIER CARD 401215132711
BEKUM 4012-151-32721 PC BOARD 401215132721
BEKUM 4012-151-32721 PC BOARD 401215132721
BEKUM 4012-151-32731 PC BOARD 401215132731
BEKUM 4012-151-32731 PC BOARD 401215132731
BEKUM 4012-151-32771 PC BOARD 401215132771
BEKUM 4012-151-32771 PC BOARD 401215132771
BEKUM 4012-151-32781 AMPLIFIER CARD 401215132781
BEKUM 4012-151-32781 AMPLIFIER CARD 401215132781
BEKUM 4012-151-54341 AMPLIFIER CARD 401215154341
BEKUM 4012-151-54341 AMPLIFIER CARD 401215154341
BEKUM 4022-770-22001 PC BOARD 402277022001
BEKUM 4022-770-22001 PC BOARD 402277022001
BEKUM 4022-770-22001 PC BOARD 402277022001
BEKUM 4022-770-22001 PC BOARD 402277022001
BEKUM 4022-770-22011 OUTPUT BOARD 402277022011
BEKUM 4022-770-22011 OUTPUT BOARD 402277022011
BEKUM 4022-770-22011 OUTPUT BOARD 402277022011
BEKUM 4022-770-22011 OUTPUT BOARD 402277022011
BEKUM 4022-770-22011 OUTPUT BOARD 402277022011
BEKUM 4022-770-22011 OUTPUT BOARD 402277022011
BEKUM 4022-770-22021 PC BOARD 402277022021
BEKUM 4022-770-22021 PC BOARD 402277022021
BEKUM 4022-770-22021 PC BOARD 402277022021
BEKUM 4022-770-22021 PC BOARD 402277022021
BEKUM 4022-770-22021 PC BOARD 402277022021
BEKUM 4022-770-22021 PC BOARD 402277022021
BEKUM ID-054503 PC BOARD ID054503B2
BEKUM ID-054503 PC BOARD ID054503B2
BELCO 1039-01 CIRCUIT BOARD A5B1037-A-02 103901
BELCO 1039-01 CIRCUIT BOARD A5B1037-A-02 103901
BELCO 1211-03 CIRCUIT BOARD A5B1209A01 121103
BELCO 1211-03 CIRCUIT BOARD A5B1209A01 121103
BELCO 1211-03 PC BOARD 121103 A5B1211-03
BELCO 1211-03 PC BOARD 121103 A5B1211-03
BELCO 1248-00 CIRCUIT BOARD A5B1248-00 124800
BELCO 1248-00 CIRCUIT BOARD A5B1248-00 124800
BELCO MSA7002A01 DISPLAY BOARD
BELCO MSA7002A01 DISPLAY BOARD
BELCO MSA7002A01 DISPLAY BOARD
BELCO MSA7002A01 DISPLAY BOARD
BELL & HOWELL CS-538-000A POWER BOARD CS538000A
BELL & HOWELL CS-538-000B CPU BOARD REV.2 CS538000B
BELL & HOWELL CS-538-000D CIRCUIT BOARD CS538000D
BELL & HOWELL CS-538-000E CIRCUIT BOARD CS538000E
BELL & HOWELL CS-538-000F BACK PANEL BOARD REV.1 CS538000F
BELL & HOWELL CS-538-000F BACK PANEL PC BOARD CS538000F
BELL & HOWELL CS-538-000G CIRCUIT BOARD CS538000G 937002058
BELL & HOWELL CS-538-000J PC BOARD CS538000J
BELL & HOWELL CS-538-000J PC BOARD CS538000J
BELL & HOWELL CS-538-000M PC BOARD CS538000M
BELL & HOWELL CS-538-000M PC BOARD CS538000M
BELL & HOWELL CS-538-00AY BOARD CS53800AY
BELL & HOWELL CS-538-00AY BOARD CS53800AY
BEMAC ULB33A Annunciator DC24V new
BEMAC ULB33A Annunciator DC24V new
BEMAC ULB33A Annunciator DC24V new
BEMAC ULB33A Annunciator DC24V new
BEMAC ULB33A Annunciator DC24V Uzushio Electric
BEMAC ULB33A Annunciator DC24V Uzushio Electric
BEMAC ULB33A Annunciator DC24V Uzushio Electric
BEMAC ULB33A Annunciator DC24V Uzushio Electric
BEMAC ULB33A-B1 QJN0021 Annunciator Pcb Card Uzushio Electric