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。
Neuf VIDEOJET SP370400-01 Programmé Carte PCB Vidéo Jet SP370400-01
CEM3615T MOTOR 5HP 230/460V 1750RPM 184TC
POLARIS 1341444 TRANSMISSION 2003-2004 SPORTSMAN 400-500
GENERAL ELECTRIC GE DS3800NRFA1F1E BOARD
OSAKA VACUUM TG200 TURBOMOLECULAR PUMP
3 GE FANUC IC660ELA020A ANALOG BLOCKS
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COMMERCIAL SHEARING FD30CYAB05-1FAB05-1CY HYDRAULIC PUMP
DEZURIK 9601267 ACTUATOR SIZE 1 STYLE VPB 901976 106625
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MOOG D124-015-A001 INTERFACE BOARD D124015A001
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NEXEN 5H45P5P-1 1.500 BORE PILOT 912498 5H45P5P11500
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WEBER 54800 PNEUMATIC VALVE ASSEMBLY FPE-11536
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MARTIN 5C13.OTB SHEAVE 5 GROOVE 5C13OTB
EMERSON 0364963 ELECTRIC BRAKE
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KOP-FLEX 1966035 HUB 4W FHUBTLX4040
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SKF 23134 CCK/C3W33 SPHERICAL ROLLER BEARING 23134CCKC3W33
MARTIN 6B184TB SHEAVE
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MAGNETEK GPD503 DRIVE 71616-G3B50111F GPD50350111F
BENTLY NEVADA 3300/14-02-20-00 POWER SUPPLY PWA100490-02S PWA101771-01
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ABB TAYLOR ELECTRONICS 6024BZ10300B PROCESSOR MODULE 6024BZ10300B-2513
ABB TAYLOR ELECTRONICS 6024BZ10300B PROCESSOR MODULE 6024BZ10300B-2500
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OSAKA vacuum cleaner TG200 turbomolecular pump
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ABB 3HXD1602-100/0 POWER/SIGNAL CABLE 3HXD16021000 3HXD1602-100
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SIEMENS 6AV7851-0AE20-1AA0 SIMATIC PANEL 12" PC 477B 6AV78510AE201AA0
NIKI IK-FCKLA21-4P-1.5KW PUMP 32ULD15Z IKFCKLA214P15KW
SMC VV5QC11-12-DAO00492 Solenoid Valve VV5QC1112DAO00492
Nuevo SMC VV5QC11-12-DAO00492 Electroválvula VV5QC1112DAO00492
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Utilisé Abb TAYLOR ELECTRONICS 6024BZ10300B Process
Usado INDRAMAT CLM01.3-X-0-4-0-FW Servo Controlador CLM013X040FW
Usato Abb TAYLOR ELECTRONICS 6024BZ10300B Processore Modulo 6024BZ10300B-2500
Neuf SMC VV5QC11-12-DAO00492 Électrovanne VV5QC1112DAO00492
3 Usado Ge FANUC IC660ELA020A Analógico Bloques
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3 Utilisé Ge FANUC IC660ELA020A Analogique Blocs
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CINCINNATI MILACRON PSR4/5-250-7500 POWER SUPPLY PSR4/52507500
VEGA PS64.1XBAUDHXKNXXX LEVEL SENSOR VEGAPULS64
YASKAWA JPAC-C318.N CIRCUIT BOARD ETC008342 JPACC318N
YASKAWA JPAC-C317 CIRCUIT BOARD ETC008332 JPACC317
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ALLEN BRADLEY 1764-24AWA MICROLOGIX 1500 BASE IT SER.B 176424AWA
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REXROTH R900918616 CONTROL VALVE 4WEH22C76/6EG24N9TK4 R900561274
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VICKERS EEA-PAM-511-D-30 POWER AMPLIFIER W/PID MODULE EEAPAM511D30
VICKERS EEA-PAM-511-B-30 POWER AMPLIFIER CARD EEAPAM511B30
VICKERS EEA-PAM-513-B-32 POWER AMPLIFIER CARD EEAPAM513B32
ODRIVE RF37DT90S4/TH GEAR MOTOR 24.42:1 240-460V RF37DT90S4TH
PARKER 06.00 F2AUS13 7.000 CYLINDER 0600F2AUS137000
HIRSCHMANN RS20-0800M4M4SDAE RAIL SWITCH RS200800M4M4SDAE
FANUC A06B-0127-B577#7008 SERVO MOTOR A06B0127B5777008
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ITOH PM486FP-55-493-D-024-C150-P2 DRIVE ROLLER
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ODRIVE SA47 DT80N4 GEARMOTOR 230/460V SA47DT80N4
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OSAKA Empty TG200 Turbomolecular Pump
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SIEMENS 505-7038 INPUT MODULE 5057038