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。
ACCURAY 670216021 PC BOARD GPU 83883-002
ACCURAY 670216021 PC BOARD GPU 83883-002
ACCURAY 7-083882-001 PC BOARD 7083882001
ACCURAY 7-083882-001 PC BOARD 7083882001
ACCURAY 8-073831-002 CONTROL BOARD 8073831002
ACCURAY 8-073831-002 CONTROL BOARD 8073831002
ACCURAY 8-073831-002 CONTROL BOARD 8073831002
ACCURAY 8-073831-002 CONTROL BOARD 8073831002
ACCURAY 8-074518-001 PC BOARD 8074518001
ACCURAY 8-074518-001 PC BOARD 8074518001
ACCURAY INCORPORATED 022301 CIRCUIT BOARD REV.1
ACCURAY INCORPORATED 022301 CIRCUIT BOARD REV.1
ACCURAY INCORPORATED 025445 CIRCUIT BOARD REV.B 025448A
ACCURAY INCORPORATED 025445 CIRCUIT BOARD REV.B 025448A
ACCURAY INCORPORATED 025445 CIRCUIT BOARD REV.B 025448A
ACCURAY INCORPORATED 025445 CIRCUIT BOARD REV.B 025448A
ACEWELL ELECTRONIC EFCP1-R2 DISPLAY PCB CARD
ACEWELL ELECTRONIC EFCP1-R2 DISPLAY PCB CARD
ACEWELL ELECTRONICS EFCP2-R2A PCB CARD
ACEWELL ELECTRONICS EFCP2-R2A PCB CARD
ACI CONTROLS 098806 CIRCUIT BOARD REV 0
ACI CONTROLS 098806 CIRCUIT BOARD REV 0
ACL ELECTRONIC SERVICES PCB 711779 00002459 SCS-007-02 / FAST SHIP DHL OR FEDEX
ACL ELECTRONIC SERVICES PCB 711779 00002459 SCS-007-02 / FAST SHIP DHL OR FEDEX
ACOPIAN 15E40 POWER MODULE
ACOPIAN 15E40 POWER MODULE
ACOZ 6739805XD-2C PCB CARD 6739805XD-1C
ACOZ 6739805XD-2C PCB CARD 6739805XD-1C
ACOZ 6739805XD-2C PCB CARD 6739805XD-1C
ACOZ 6739805XD-2C PCB CARD 6739805XD-1C
ACOZ 6739805XD-2C PCB CARD 6739805XD-1C
ACOZ 6739805XD-2C PCB CARD 6739805XD-1C
ACRISON 105-2-178 POWER BOARD 1052178
ACRISON 105-2-178 POWER BOARD 1052178
ACRISON 105-2-260 PC BOARD 1052260
ACRISON 105-2-260 PC BOARD 1052260
ACRISON 115-0847 CPU BOARD 1150847
ACRISON 115-0847 CPU BOARD 1150847
ACRISON 115-0847 CPU BOARD 1150847
ACRISON 115-0847 CPU BOARD 1150847
ACRISON 23-28530 MDII PC BOARD 2328530
ACRISON 23-28530 MDII PC BOARD 2328530
ACRISON M-4-1771 MINI MDII MFC TBA BOARD 115-0850 M41771
ACRISON M-4-1771 MINI MDII MFC TBA BOARD 115-0850 M41771
ACRISON M-4-400 PC BOARD PC-A M4400
ACRISON M-4-400 PC BOARD PC-A M4400
ACRISON M-4-400 PC BOARD PC-A M4400
ACRISON M-4-400 PC BOARD PC-A M4400
ACRISON M-4-977 PC BOARD M4977
ACRISON M-4-977 PC BOARD M4977
ACRISON MD-2-424 PC BOARD 115-0847 MD2424
ACRISON MD-2-424 PC BOARD 115-0847 MD2424
ACRISON MD-2-424 PC BOARD 115-0847 MD2424
ACRISON MD-2-424 PC BOARD 115-0847 MD2424
ACRISON MD-2-424 PC BOARD 115-0847 MD2424
ACRISON MD-2-424 PC BOARD 115-0847 MD2424
ACRISON MD-2-45 PC BOARD MD245
ACRISON MD-2-45 PC BOARD MD245
ACROMAG 1018-117D CIRCUIT BOARD 1018117D
ACROMAG 1018-117D CIRCUIT BOARD 1018117D
ACROMAG 1018-150C PC BOARD 1018150C
ACROMAG 1018-150C PC BOARD 1018150C
ACROMAG 1018-163G POWER RELAY BOARD 1018163G
ACROMAG 1018-163G POWER RELAY BOARD 1018163G
ACROMAG 1018-177F CIRCUIT BOARD 1018177F
ACROMAG 1018-177F CIRCUIT BOARD 1018177F
ACROMAG 1018-331B CIRCUIT BOARD 527-1 1013-116A 1018331B
ACROMAG 1018-331B CIRCUIT BOARD 527-1 1013-116A 1018331B
ACROMAG 206-246 PC BOARD 1018-091D 206246
ACROMAG 206-246 PC BOARD 1018-091D 206246
ACROMAG 712-RB PC BOARD 712RB
ACROMAG 712-RB PC BOARD 712RB
ACROMAG 712-SQ PC BOARD 712SQ 076-4
ACROMAG 712-SQ PC BOARD 712SQ 076-4
ACROMAG 751-INT PC BOARD 751INT 076-2
ACROMAG 751-INT PC BOARD 751INT 076-2
ACROMAG 900EN-S005 FIVE PORT ETHERNET SWITCH 10/100 MBPS
ACROMAG 900EN-S005 FIVE PORT ETHERNET SWITCH 10/100 MBPS
ACROMAG 900EN-S005 FIVE PORT ETHERNET SWITCH 10/100 MBPS
ACROMAG 900EN-S005 FIVE PORT ETHERNET SWITCH 10/100 MBPS
ACROMAG 981PB-2012 PROFIBUS DP MODULE
ACROMAG 981PB-2012 PROFIBUS DP MODULE
ACROMAG A. 206245 ISOLATOR BOARD A206245
ACROMAG A. 206245 ISOLATOR BOARD A206245
ACROMAG A.206248 ACROMAG-1018-093 CIRCUIT BOARD A206248
ACROMAG A.206248 ACROMAG-1018-093 CIRCUIT BOARD A206248
ACROMAG A.206248 CIRCUIT BOARD 1018-093 A206248
ACROMAG A.206248 CIRCUIT BOARD 1018-093 A206248
ADAPTEC 39160 SCSI CARD
ADAPTEC 39160 SCSI CARD
ADAPTEC 39160 SCSI CARD
ADAPTEC AHA-294OU2W PC BOARD ASSY# 1686906-13 AHA294OU2W
ADAPTEC AHA-294OU2W PC BOARD ASSY# 1686906-13 AHA294OU2W
ADAPTEC PB645479-004 NETWORK CARD MP647569-004 PB645479004
ADAPTEC PB645479-004 NETWORK CARD MP647569-004 PB645479004
ADAPTIVE MICRO SYSTEMS 11719001R DISPLAY BOARD 32x16 45117101
ADAPTIVE MICRO SYSTEMS 11719001R DISPLAY BOARD 32x16 45117101
ADAPTIVE MICRO SYSTEMS 11719001R DISPLAY BOARD 32x16 45117101
ADAPTIVE MICRO SYSTEMS 11719001R DISPLAY BOARD 32x16 45117101
ADAPTIVE MICRO SYSTEMS 11719001R DISPLAY BOARD 32x16 45117101
ADAPTIVE MICRO SYSTEMS 11719001R DISPLAY BOARD 32x16 45117101
ADAS ELECTRONIQUE ICM-212/A PC BOARD ICM212A
ADAS ELECTRONIQUE ICM-212/A PC BOARD ICM212A
ADEPT TECH 10840-42160 OUTER LINK CARD 1084042160
ADEPT TECH 10840-42160 OUTER LINK CARD 1084042160
ADI SYSTEMS 060-020-002B EDGE DETECTOR BOARD REV.A 060020002B
ADI SYSTEMS 060-020-002B EDGE DETECTOR BOARD REV.A 060020002B
ADTRON I35CF-M64SXC01 IDE STORAGE DRIVE PCB 720100065 REV A
ADTRON I35CF-M64SXC01 IDE STORAGE DRIVE PCB 720100065 REV A
ADVANCED ENERGY 2301236-B PINNACLE LOGIC II PCB BOARD 2301236B
ADVANCED ENERGY 2301236-B PINNACLE LOGIC II PCB BOARD 2301236B
ADVANCED ENERGY 2301236-B PINNACLE LOGIC II PCB BOARD 2301236B
ADVANCED ENERGY 2301236-B PINNACLE LOGIC II PCB BOARD 2301236B
ADVANCED ENERGY 2301236-B PINNACLE LOGIC II PCB BOARD 2301236B
ADVANCED ENERGY 2301236-B PINNACLE LOGIC II PCB BOARD 2301236B
ADVANCED ENERGY 2302050-A PINNACLE PASSIVE DISPLAY BOARD 2302050A
ADVANCED ENERGY 2302050-A PINNACLE PASSIVE DISPLAY BOARD 2302050A
ADVANCED TECHNOLOGY 22900035 CIRCUIT BOARD 25500035 700539
ADVANCED TECHNOLOGY 22900035 CIRCUIT BOARD 25500035 700539
ADVANTAGE CONTROLS 3-533-0351G PC BOARD APCI MODULE
ADVANTAGE CONTROLS 3-533-0351G PC BOARD APCI MODULE
ADVANTAGE CONTROLS 3-533-0351G PC BOARD APCI MODULE
ADVANTAGE CONTROLS 3-533-0351G PC BOARD APCI MODULE
ADVANTAGE ELECTRONICS 3-531-2781A PC BOARD 35312781A
ADVANTAGE ELECTRONICS 3-531-2781A PC BOARD 35312781A
ADVANTAGE ELECTRONICS 3-531-4350A PC BOARD HDCI
ADVANTAGE ELECTRONICS 3-531-4350A PC BOARD HDCI
ADVANTAGE ELECTRONICS 3-531-4582A PC BOARD 35314582A
ADVANTAGE ELECTRONICS 3-531-4582A PC BOARD 35314582A
ADVANTECH PCM-916 RISER CARD 19AK091600-01 REV A1
ADVANTECH PCM-916 RISER CARD 19AK091600-01 REV A1
ADVANTECH POS-563 PC BOARD 1907056302 , POS563
- 0100-00443板卡等工控备件优势经销 2024-11-09
- 0100-00439板卡等工控备件优势经销 2024-11-09
- 0100-00504板卡等工控备件优势经销 2024-11-09
- 0100-00438板卡等工控备件优势经销 2024-11-09
- 0100-00499板卡等工控备件优势经销 2024-11-09
- 0100-00244板卡等工控备件优势经销 2024-11-09
- 0100-0024板卡等工控备件优势经销 2024-11-09
- 0100-00259板卡等工控备件优势经销 2024-11-09
- 0100-00208板卡等工控备件优势经销 2024-11-09
- 0100-00206板卡等工控备件优势经销 2024-11-09