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
Keyence BL-1300HA BL1300HA Laser Sensor w/ Cut Cable
Keyence BL-901 BL901 Laser Scan Bar Code Reader
Keyence CA-DC10E CADC10E Programmable Controller
Keyence CA-E200L Vision System High-Speed Line Scan Camera Input Unit 2-Channel
Keyence CA-HL04MX Vision System High-Speed 4K Line Scan Camera w/LED Pointer
Keyence CA-HX500M Industrial Camera 16x5Mega f=50mm/F2.8 Lens
Keyence CA-MP120T Display Monitor
Keyence CA-U5 Switching Power Supply Control Panel
Keyence CA-U5 Switching Power Supply System Control
Keyence Corporation GC-A16 Safety Controller -
Keyence CU-21T CU21T Photoelectric Module
Keyence CV-5502 Mega Digital Image Sensor Controller 2-Camera, 24VDC
Keyence CV-H200M CVH200M 7X Mega Digital CCD Camera Made in Japan
Keyence CV-H200M CVH200M CCD 7X Mega Digital Deformed
Keyence CV-M30 CVM30 Touch Screen Panel
Keyence CV-X100A CVX100A Image Sensor/Controller
Keyence CV-X100M CVX100M Image Sensor/Controller w/o Cover
Keyence CV-X102FP Visual Image Sensor Controller
Keyence CV-X272FP Intuitive Vision High-Speed Camera+Illumination Controller PNP
Keyence FD-MH100A FDMH100A Capacitance Electromagnetic Flow Sensor
Keyence FD-MH500A Electromagnetic Flow Sensor Head, Water, 25-500L/min, Rc2
Keyence FD-MZ100AYKP Electromagnetic Flow Sensor, 100L/min, 1in NPT, 24VDC
Keyence FS-N18N FSN18N Photoelectric Sensor w/o Cover Cut Cable
Keyence FU-96 FU96 Fiber Optic Sensor
Keyence GL-R08H-R GLR08HR Light Curtain Receiver w/ Cut Cable & Scratches
Keyence GL-R24H-R GLR24HR Light Curtain Receiver
Keyence GL-R24H-T GL-R24H-R Safety Light Curtain, 24VDC, 460mm x 0.2-15m
Keyence GL-R24H-T GL-R24H-R Transmitter & Receiver Light Curtain Set Cut Wire
Keyence GL-R24H-T GLR24HT Light Curtain Transmitter
Keyence GL-R36H-T/GL-R36H-R Light Curtain Transmitter & Receiver Set
Keyence GL-R60H Safety Light Curtain Transmitter & Receiver Set 25mm 1180mm 15m
Keyence GL-R72H-T GL-R72H-R Safety Light Curtain Set Receiver & Transmitter
Keyence GT2-72N GT272N Sensor Amplifier Unit w/ Breakage w/ Cut Cable
Keyence GT2-72N GT272N Sensor As Is
Keyence GT2-P12KL GT2P12KL Intelligent Sensor Head
Keyence GT2-P12L GT2P12L Digital Sensor w/ GT2-71N
Keyence HI-04T Hybrid Inverter
Keyence IG-010 & IG-1000 Laser Micrometer System, 660nm, 10mm Beam, 10-30VDC
Keyence IG-1000 IG1000 Sensor Amplifier Cut Cable w/o Cover
Keyence Intelligent-L IL-1000 IL1000 Laser Sensor Amplifier Made in Japan
Keyence Intelligent-L IL-1000 IL1000 Laser Sensor Amplifier Made in Japan
Keyence IX-150 Sensor Head, 150mm Reference, 100-200mm Range, Red Laser
Keyence KL-8BXT KL8BXT Input Output Module
Keyence KV-1000 KV1000 CPU Module As Is
Keyence KV-1000 KV1000 CPU Module w/ dead pixels AS IS
Keyence KV-10DR KV10DR PLC
Keyence KV-24AT KV24AT PLC Expansion w/o Terminal Cover
Keyence KV-5000 KV5000 CPU Module Ver 2.0
Keyence KV-AD40 KVAD40 Analog Input Module
Keyence KV-B16TD KVB16TD Output Module
Keyence KV-C32XTD KVC32XTD Input Output Module
Keyence KV-C32XTD KVC32XTD Input Output Module
Keyence KV-C32XTD KVC32XTD Input Output Module w/ Damage
Keyence KV-C64TA KVC64TA Out Module
Keyence KV-C64TD KVC64TD Output Module w/ breakage
Keyence KV-C64XA KVC64XA Input Module
Keyence KV-C64XC KVC64XC Input Module w/ breakage
Keyence KV-C64XC KVC64XC Input Module w/ breakage
Keyence KV-H20 KVH20 Positioning/High Speed Counter Module
Keyence KV-L20V KVL20V PLC Module
Keyence KV-LE20 KVLE20 Ethernet Module
Keyence KV-LE21V KVLE21V Ethernet Module
Keyence KV-LE21V KVLE21V Ethernet Module
Keyence KV-LE21V KVLE21V Ethernet Module w/ End Cover
Keyence KV-LE21V KVLE21V Ethernet Module w/ End Cover
Keyence KV-LH20V KVLH20V Serial Positioning Module w/ Missing Cover
Keyence KV-NC32T CPU Module As Is
Keyence KV-NC32T KVNC32T CPU Module w/ Breakage
Keyence KV-P16R KVP16R Data Access/Message Controller
Keyence KZ-16EX KZ16EX Expansion Module
Keyence KZ-16EX KZ16EX Expansion Module w/ Missing Cover
Keyence KZ-24T KZ24T Programmable Controller 30Days Warranty
Keyence KZ-A500 KZA500 CPU Programmable Controller
Keyence KZ-A500 KZA500 CPU ProgrammableController
Keyence LC-2400 LC2400 Laser Displacement Meter on/off button
Keyence LC-2400A Laser Displacement System w/ LC-2420 Laser Sensor
Keyence LK-031 LK031 Laser Displacement Sensor
Keyence LK-G152 Long Distance Small Spot Laser Displacement Sensor, 40mm Range
Keyence LK-G3000 LKG3000 Laser Displacement Sensor Transducer
Keyence LK-G3001P Control Panel for Laser Distance Meter
Keyence Lk-G3001P Control System for Laser Displacement Sensor
Keyence LK-G3001P Laser Displacement Sensor Controller, 2-Units, PNP, 24VDC 0.5A
Keyence Lk-G87 Laser Measuring Head with User Manual
Keyence LK-G87 Laser Measuring Head with User's Instructions
Keyence LS 5121T Keyence LC5121R High Speed Sensor Head Keyence Laser Scan
Keyence LS 5121T Keyence LC5121R High Speed Sensor Head Laser Scan
Keyence LS-3100 Laser Scan Diameter No Key Deform
Keyence LS-3100 Laser Scan Diameter w/o Key As Is
Keyence LS-3100 LS3100 Laser Scan Diameter
Keyence LS-5041T High Speed Laser Scan Micrometer Sensor Head
Keyence LS-7001 & LS-7010 LED CCD Micrometer System & Stand ±.5µm Accuracy, 6mm
Keyence LS-7001 & LS-7010 LED CCD Micrometer System ±.5μm Accuracy .04-6mm Range
Keyence LS-7001 High-Accuracy Optical CCD Micrometer Digital Controller 24VDC
Keyence LS-7001 Interface Readout Display Controller W/Enclosure
Keyence LS-7501 CCD Camera Optical Micrometer System w/LS-7030M Head 0.3 to 30mm
Keyence LS-7601 & LS-7070M LED CCD Micrometer System .5-65mm ±3μm Range 100-240V
Keyence LS-9501 High-Speed Optical CMOS Micrometer Digital Controller 24VDC
Keyence LT-8105 Laser Confocal Displacement Meter Controller, Camera Unit Remote
Keyence LX2-60 LX260 Photo Electric Thru Beam Amplifier
Keyence NR-250 NR250 Data Acquisition System
Keyence PJ-50A Light Curtain Transmitter w/ 2pcs PJ-55A Expansion Unit (R)
Keyence PJ-50A Light Curtain Transmitter w/ 2pcs PJ-55A Expansion Unit (R)
Keyence PJ-50A Light Curtain Transmitter w/ 2pcs PJ-55A Expansion Unit (T)
Keyence PJ-50A Light Curtain Transmitter w/ 2pcs PJ-55A Expansion Unit (T)
Keyence PK-72 PK72 Sensor
Keyence PS-47 PS47 Photo Sensor
Keyence QL-R01 QLR01 Optical Fiber Amplifier Sensor
Keyence QS-10N QS10N Stepper Motor Driver 24V
Keyence QS-M42 QSM42 Stepping Motor Made in Japan
Keyence RC-19 RC19 Counter Made in Japan
Keyence RC-19 RC19 Counter Made in Japan
Keyence RF-500 RF500 Laser Scanner DC 5V As Is
Keyence RV-10 RV10 Displacement Sensor Temperature Controller
Keyence SJ-B020A SJB020A Cut Wire
Keyence SJ-B020A SJB020A Cut Wire
Keyence SJ-F100W SJF100W Static Eliminator
Keyence SL-C16H-T SLC16HT Transmitter w/ SL-C20H-T
Keyence SL-C20H-T SLC20HT Transmitter
Keyence SL-C20H-T SLC20HT w/ SL-C16H-Transmitter
Keyence SL-V103F Finger Light Curtain Transmitter & Receiver Distance 0.1 to 7 m
Keyence SL-V55F Finger Light Curtain Transmitter & Receiver Distance 0.1 to 7 m
Keyence SL-V80H SL-V16H Safety Light Curtain Transmitter & Receiver 24V
Keyence SR-610 SR610 Barcode Reader Sensor
Keyence SR-710 SR710 Barcode Reader w/ MSPA-2000 Adaptor
Keyence SR-M80 HMI Operator Touchscreen Control Panel Monitor
Keyence SV-020P1 SV020P1 AC Servo Drive Controller 200W Made in Japan
Keyence SV-M020CK SVM020CK AC Servo Motor w/ Cut Cable
Keyence VG-035T VG035T Laser Sensor
Keyence VG-300 VG300 Laser Sensor Scan Diameter Controller FREE SHIP
Keyence VG-300 VG300 Laser Sensor Scan Diameter ControllerFREE SHIP
Keyence VH-Z20R High-Resolution Digital Microscope Zoom Lens 20x-200x, 25.5mm WD
Keyence VT3-W4G VT3W4G Touchscreen 24VDC w/ Broken Glass Panel As Is