福建中立恒自动化设备有限公司
1．输入/输出单元
输入/输出单元通常也称I/O单元或I/O模块，是PLC与工业生产现场之间的连接部件。
PLC通过输入接口可以检测被控对象的各种数据，以这些数据作为PLC对被控制对象进行控制的依据；同时PLC又通过输出接口将处理结果送给被控制对象，以实现控制目的。
由于外部输入设备和输出设备所需的信号电平是多种多样的，而PLC内部CPU的处理的信息只能是标准电平，所以I/O接口要实现这种转换。
I/O接口一般都具有光电隔离和滤波功能，以提高PLC的抗干扰能力。另外，I/O接口上通常还有状态指示，工作状况直观，便于维护。
PLC提供了多种操作电平和驱动能力的I/O接口，有各种各样功能的I/O接口供用户选用。I/O接口的主要类型有：数字量（开关量）输入、数字量（开关量）输出、模拟量输入、模拟量输出等。
常用的开关量输入接口按其使用的电源不同有三种类型：直流输入接口、交流输入接口和交/直流输入接口。
常用的开关量输出接口按输出开关器件不同有三种类型：是继电器输出、晶体管输出和双向晶闸管输出。
继电器输出接口可驱动交流或直流负载，但其响应时间长，动作频率低；而晶体管输出和双向晶闸管输出接口的响应速度快，动作频率高，但前者只能用于驱动直流负载，后者只能用于交流负载。
PLC的I/O接口所能接受的输入信号个数和输出信号个数称为PLC输入/输出（I/O）点数。I/O点数是选择PLC的重要依据之一。当系统的I/O点数不够时，可通过PLC的I/O扩展接口对系统进行扩展。
2．通信接口
PLC配有各种通信接口，这些通信接口一般都带有通信处理器。
PLC通过这些通信接口可与监视器、打印机、其它PLC、计算机等设备实现通信。
PLC与打印机连接，可将过程信息、系统参数等输出打印；与监视器连接，可将控制过程图像显示出来；与其它PLC连接，可组成多机系统或连成网络，实现更大规模控制。
与计算机连接，可组成多级分布式控制系统，实现控制与管理相结合。远程I/O系统也必须配备相应的通信接口模块。
3．智能接口模块
智能接口模块是一独立的计算机系统，它有自己的CPU、系统程序、存储器以及与PLC系统总线相连的接口。
它作为PLC系统的一个模块，通过总线与PLC相连，进行数据交换，并在PLC的协调管理下独立地进行工作。
PLC的智能接口模块种类很多，如：高速计数模块、闭环控制模块、运动控制模块、中断控制模块等。
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DELL 0H7T18 0974572-07 E15M FC MODULES 8Gb FOR COMPELLENT SC4020 SC4020F
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Mainboards Supermicro X10DRD-L Dual LGA2011 8xDDR4 ATX Intel C612
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Server Motherboard Supermicro X9SRL-F LGA2011 (Socket R) DDR3 Pci-E ATX
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NEXCOM PEAK-405 Industrial Motherboard CPU 2x Simm Isa AM5X86-P75
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Control Module NetApp 111-01324 C1 SAS SFP RJ-45 = FAS2552 FAS2554
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Hard Drive Dell 06VJ7 006VJ7 PX04SRB048 480GB MLC SSD SAS-3 12Gbps 2.5'' Inch
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Carte Mère Supermicro X7DCL-I Double 2xLGA771 6xDDR2 ATX Intel 5100 2xPCI-ex8
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NIPRON eNSP3-450P-S21-H0V 350W Nonstop Dc ATX 20 Power Supply 4-PIN Battery
Dell Contrôl
Carte Mère TYAN Tiger I7500 S2722 2x Prise 603 4x DDR
NEXCOM PEAK-405 Industriel Carte Mère CPU 2x Simm Isa AM5X86-P75
Contrôle Module NetApp 111-01324 C1 SAS SFP RJ-45 = FAS2552 FAS2554
Sony SDT-4000 DDS1 2/4GB SCSI 50-PIN White 5.25'' Inch Streamer
Streamer HP 695112-001 ULTRIUM 1760 LTO4 SAS AK383B 256MB Cache Half Haute ( Hh
Fujitsu Siemens Alimentations Fujitsu S26113-E448-V30 250WATT ATX 20-PIN AA21720
Infortrend Eonstor SATA/SAS Raid Contrôl
TYAN S5360 S5360G2NR-D-RS 2x Prise 604 8x Sdram PCI Pci-X
Intel 721762-605 2x Fente 1 4x Sdram 6x PCI Isa Carte Mère
Disque Dur Toshiba MK4313MAT 4.3GB 4200U/Min Ide Ata 512KB Cache 2.5'' Pouces
Disque Dur Fujitsu MHR2010AT 10 Go 4200 Tr/min 2 Mo Cache ATA IDE 2,5"
Cartes Mères Fujitsu Siemens D1627-C32 GS2 Prise 478 4xDDR ATX 305mm x 244mm
Carte Mère S 411698000001 4x Sdram PCI AGP CPU
Carte Mère Fujitsu S26361-D756-A132 GS3 Intel SX729 33MHz A80486DX-33
HP RDX500 AP726A RDX USB Amovible Disque Sauvegarde 500GB Noir 5.25 " Pouces
Disque Seagate Hawk 2LP ST32430N 9B1001-064 2.14GB 5400U/Min 50pin 3.5 " Pouces
Disque Dur Dell 06VJ7 006VJ7 PX04SRB048 480GB MLC SSD SAS-3 12Gbps 2.5'' Pouces
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Server Power Supply S 3001460-03 1700W A153 S FIRE 4800
Hard Drive Seagate Barracuda 7200.10 ST3300620AS 300GB 7.2K 16MB SATA II 3.5''
Server Power Supplies Fujitsu CA05954-0860 540W DX60 DX80 DX90 Hot-Swap
Hard Drive Seagate Elite-23 23.2GB ST423451N 5.4K 2MB Ultra SCSI 50-Pin 5.25"
SEAGATE BARRACUDA 7200.10 ST3300620AS 300GB 7.2K 16MB SATA II 3.5" HARD DRIVE
SUPERMICRO PE SOCKET 775 DDR2 ATX 2x PS2 RS232 VGA 2xRJ45 2xUSB MAINBOARDS
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