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。
以下链接皆有货
Power Source WRP30SX Power Supply 30V16A
Power Source WRP30SX Power Supply 30V16A
Power Source WT-650-18 SP-256B Power Supply 18V 1.7A for Shinkawa UTC-1000
Power Source WT-650-18 SP-256B Power Supply 18V 1.7A for Shinkawa UTC-1000
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Power Ten 10 P62B-20150 P62B20150 Power Supply
Power Ten 10-010-093-10F 1001009310F Board
Power Ten 10-010-093-10F 1001009310F Board
Power Ten 10-010-095-10 1001009510 Board
Power Ten 10-010-095-10 1001009510 Board
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Power Ten 10-010-156-59 w/ 10-010-202-10 Ehv Filter Output Boards
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Power Ten 10-010-196-10 1001019610 Rev F Circuit Board
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Power Ten 10-010-213-00 Boards
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Power Ten 3300D-2050 3300D2050 DC Power Supply
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Power Ten 3300D-4025 3300D4025 DC Power Supply 103-127V 50/60Hz
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Power Ten 3300D-6010 3300D6010 DC Power Supply 103-127V 50/60Hz
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Power Ten 3350D-2050 3350D2050 DC Power Supply w/ Scratches
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Power Ten 4604D-20250 4604D20250 Power Supply 190-253V Made in USA As Is
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Power Ware Prestige3000 2000P3HB Power Supply
Powercom SMK-600A SMK600A UPS Power Supply AC220-240V 3A AC 220V 360W Max.
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Powerex SPC-500-12VW SPC50012VW Power Supply
Powerex SPC-500-12VW SPC50012VW Power Supply
Powerland PICM-2900-0PT0 Board
Powerland PICM-2900-0PT0 Board
PowerLogic PM8M2222 Module
PowerLogic PM8M2222 Module
Powermax II M22NSHB-LNN-NS-02 M22NSHBLNNNS02 1.8 Deg.Step Motor
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Power-One LWN-1601-6R LWN16016R AC-DC Converter
Power-One MAP40-1005C MAP401005C Power Supply
Power-One MAP40-1005C MAP401005C Power Supply
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Power-One NRG3D15K0K0FZ127 073-62624-101 Power Supply
Power-One PFC375-4002 PFC3754002 Power Supply AS IS
Power-One PFC375-4002 PFC3754002 Power Supply AS IS
Power-One SPF4A2M6K DC Power Supply 3 Business Days
Power-One SPF4A2M6K DC Power Supply 3 Business Days
Power-one SPM3G2KC DC Power Supply AS IS
Power-one SPM3G2KC DC Power Supply AS IS
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Power-One SPM5D2D1M4A1RS323 DC Switching Power Supply 115-230VAC
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Powerpac N31HRHK-LNK-NS-00 N31HRHKLNKNS00 Stepper Motor
Powerpac N31HRHK-LNK-NS-00 N31HRHKLNKNS00 Stepper Motor
Powerpack K42HRFG-LEK-S5-00 1.8Step Motor Bipolar Series
Powerpack K42HRFG-LEK-S5-00 1.8Step Motor Bipolar Series
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Powerpack K42HRFG-LEK-S5-00 1.8Step Motor Bipolar Series w/ Missing Part
Powertec 9K5-200-371 9K5200371 Super Switcher Series Power Supply AS IS
Powertec 9K5-200-371 9K5200371 Super Switcher Series Power Supply AS IS
Powertec 9N2-200-372-FGV-3 9N2200372FGV3 Power Supply ( Output: 2VDC 200A 800W )
Powertec 9N2-200-372-FGV-3 9N2200372FGV3 Power Supply ( Output: 2VDC 200A 800W )
Powertec 9N5-150-17A 9N515017A DC Power Supply Output: 5VDC at 150A
Powertec 9N5-150-17A 9N515017A DC Power Supply Output: 5VDC at 150A
Powertec 9N5-150-17C 9N515017C DC Power Supply
Powertec 9N5-150-17C 9N515017C DC Power Supply
Powertech 9K2-300-372-FGLV-S1723 9K2300372FGLVS1723 Power Supply 1100W
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Powertech MB-3694 MB3694 6 in 1 Power Station
Powertech MB-3694 MB3694 6 in 1 Power Station
Powertech MP3090 DC Regulated Power Supply 240Vac 3-15Vdc 40A As Is
Powertech MP3090 DC Regulated Power Supply 240Vac 3-15Vdc 40A As Is
Powertek PW-50B PW50B Switching Power Supply
Powertek PW-50B PW50B Switching Power Supply
PowerTen DC Power Supply C
PowerTen DC Power Supply C
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PPL 010-4955-001 0104955001 Multi-Axis Drive/Controller
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PR Electronics 5714B Programmable LED Display
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Precision MicroDynamics MCX-SP-ISA MCX-DPS-ISA MCX-DSP-ISA Board
Precision MicroDynamics MCX-SP-ISA MCX-DPS-ISA MCX-DSP-ISA Board
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Precision MicroDynamics MCX-SP-ISA MCX-DSP-ISA Board
Precision Microdynamics MCX-SP-ISA MCXSPISA Board
Precision Microdynamics MCX-SP-ISA MCXSPISA Board
PremiAir PRA00904080PM00 Pneumatic Actuator + ShutOff Valve
Premiere XC-2000 XC2000 Centrifuge
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Printed Motors GmbH HG13SV-6-K/HK-G1322-M02 DC-Servo Disk Motors / Drive System
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Prism Microscope
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Pro Face GLC150BG41FLEX24V Graphic Logic Controller as Spare Part Only
Pro Light ProCom 2008 Building Automation RS485/010V
Procon PT85 Drum Motor 10861
Procter & Gamble CK95D01280 365333 F 167322A Pump Outlet Pressure
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ProFace 288004501 GP2500TC4124V Panel
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ProFace 298007801 GP2500LG4124V PANEL Display Disc Matte
Pro-Face 3180021-01 GP2500-TC11 Touch Screen Panel As Is
Pro-Face 3180021-01 GP2500-TC11 Touch Screen Panel As Is
ProFace 318003401 GP2401TC4124V TOUCHPANEL
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Pro-face 3280007-01 AGP3300-T1-D24 Touch Screen Panel AS IS Defective
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ProFace 328002414 Touchscreen Panel
ProFace 348840102 LT3201A1D24C Touch Panel
ProFace 358020503 AGP3200A1D24 4.3" Wide TFT LCD Color