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
GRUNDFOS MTA 120250 AWAB 98047144 Submersible Pump
Grundfos SPK411/11 AMA CVUV+ 3Phase MG80A219FT 100C
Grundfos SPK411/11 AMA RUUV + MG80A219FT 100C 60Hz
Grundfos Uper 2550 130 Heating Pump
GRUNDIG PN 300 PN300 Programmable Power Supply As Is
GRUNDIG PN 300 PN300 Programmable Power Supply As Is
Grundig VTG 700 VTG700 Video Transmission Generator
Grundig VTG 700 VTG700 Video Transmission Generator
GSI 193-00114 Rev. A 19300114 LDO Regulator
GSI 193-00114 Rev. A 19300114 LDO Regulator
GSI 229.009.00 22900900 Serial In/ Analog Out Board
GSI 229.009.00 22900900 Serial In/ Analog Out Board
GSI HK17234
GSI HK17234
GT-200 GT200 Board
GT-200 GT200 Board
GT-H925 7571416S1109 113866 Transformer Insulation Class 180C w/ Cut Cable
GT-H925 7571416S1109 113866 Transformer Insulation Class 180C w/ Cut Cable
GTR G3LM-18-5-T010 G3LM185T010 3-Phase Induction Motor
GTR G3LM-18-5-T010 G3LM185T010 3-Phase Induction Motor
GTR GFP-12-30-S25W GFP1230S25W Induction Motor Defective
GTR GFP-12-30-S25W GFP1230S25W Induction Motor Defective
GTR GFP-18 GFP18 Speed Control Motor
GTR GFP-18 GFP18 Speed Control Motor
GTR GLM-22-375-T60TX GLM22375T60TX Induction Motor
GTR GLM-22-375-T60TX GLM22375T60TX Induction Motor
GTR H2LM-28L-120-T020 H2LM28L120T020 3-Phase Induction Motor
GTR H2LM-28L-120-T020 H2LM28L120T020 3-Phase Induction Motor
GTR II VGLB-18-15-2002 VGLB18152002 Motor 200W (200V) Made in Japan
GTR II VGLB-18-15-2002 VGLB18152002 Motor 200W (200V) Made in Japan
GTTQ57SP7H1R0 S140613AA LCD Display Panel Touchpad Glass Touch Screen
GTTQ57SP7H1R0 S140613AA LCD Display Panel Touchpad Glass Touch Screen
Guard Master MSR15D Safety Relay Unit
Guard Master MSR15D Safety Relay Unit
GUARDSCAN GS120/SSR/S/2/LED/AB Transmitter GS120 Photoelectric Sensor Light Curtain
GÜDEL 409008 409051 bevel gearbox 16.00:1 AE090R
Guest 71R142P36S248TW Air Pump Compressor
GUNDA PAC00C.0.3SMC0 PAC00C03SMC0 Bigpac 04
GUNDA PAC00C.0.3SMC0 PAC00C03SMC0 Bigpac 04
Güntner Elektronik GDRD 8.1M Frequency Inverter
Güntner GDR 24U sine controller alternating controller speed regulator
Güntner GMM EC/01 Motor Management Control Unit
Güntner GMM EC/01.1 Motor Management Control Unit
Güntner GMM EC/08.1 Motor Management Control Unit
Güntner GMM EC/16.1 Motor Management Control Unit
Guzik 300670 Rev.J Motor Driver Board
Guzik 300670 Rev.J Motor Driver Board
Guzik 321850 REV N V2002 Control Interface Circuit Board
Guzik 321850 REV N V2002 Control Interface Circuit Board
Guzik S-312 S312 Air Bearing Spindle w/ Linear Actuator LA23GCKA-2
Guzik S-312 S312 Air Bearing Spindle w/ Linear Actuator LA23GCKA-2
Guzik Technical 300670 Motor Driver Board
Guzik Technical 300670 Motor Driver Board
Guzik V2002 325990 Actuator Interface Circuit Board w/ Breakage AS IS
Guzik V2002 325990 Actuator Interface Circuit Board w/ Breakage AS IS
GVT31 Digital Vibration Feed Controller
GVT31 Digital Vibration Feed Controller
GW Good Will GPS-3030 GPS3030 Regulated DC Power Supply
GW Good Will GPS-3030 GPS3030 Regulated DC Power Supply
GW GPI-625 GPI625 W/I Auto Tester
GW GPI-625 GPI625 W/I Auto Tester
GW GPR-3030 GPR3030 Laboratory DC Power Supply 220 VAC 50/60Hz
GW GPR-3030 GPR3030 Laboratory DC Power Supply 220 VAC 50/60Hz
GW INSTEK EI901013 w/o Front Cover w/ Deform Body & Breakage As Is
GW INSTEK EI901013 w/o Front Cover w/ Deform Body & Breakage As Is
GW INSTEK EJ912297 w/ Deform Body & Breakage
GW INSTEK EJ912297 w/ Deform Body & Breakage
GW Instek GOS-6013C GOS6013C 100 MHz Oscilloscope w/ Broke Handle
GW Instek GOS-6013C GOS6013C 100 MHz Oscilloscope w/ Broke Handle
GW Instek GOS-652G GOS652G 50 MHz Oscilloscope As Is
GW Instek GOS-652G GOS652G 50 MHz Oscilloscope As Is
GW Instek GOS-653G GOS653G 50mhz Oscilloscope w/o Handle w/ Scratches
GW Instek GOS-653G GOS653G 50mhz Oscilloscope w/o Handle w/ Scratches
GW Instek GPI-735A GPI735A AC/DC Withstand Voltage / Insulation Tester
GW Instek GPI-735A GPI735A AC/DC Withstand Voltage / Insulation Tester
GW Instek GPS-3030 GPS3030 Regulated DC Power Supply
GW Instek GPS-3030 GPS3030 Regulated DC Power Supply
GW Instek GPS-3030D GPS3030D Laboratory DC Power Supply w/ Breakage
GW Instek GPS-3030D GPS3030D Laboratory DC Power Supply w/ Breakage
GW Instek GPS-3030D GPS3030D Laboratory DC Power Supply w/ Scratches
GW Instek GPS-3030D GPS3030D Laboratory DC Power Supply w/ Scratches
Gw Instek GSP-830 GSP830 Spectrum Analyzer 9k Hz-3G Hz
Gw Instek GSP-830 GSP830 Spectrum Analyzer 9k Hz-3G Hz
GW PPS-3635 GPIB Programmable Power Supply w/ Breakage in Front and Scratches
GW PPS-3635 GPIB Programmable Power Supply w/ Breakage in Front and Scratches
H16B1022H431 H16B-1022-H431 00211 93-11
H16B1022H431 H16B-1022-H431 00211 93-11
H45205 R0636-F0001-01 R0636F000101 Rev A Module Made in China
H45205 R0636-F0001-01 R0636F000101 Rev A Module Made in China
H84258 17P8556-S10 Board
H84258 17P8556-S10 Board
Habia Style 20220 Cable
Habia Style 20220 Cable
Hach 1220 Hardness Monitor w/ Rust
Hach 1220 Hardness Monitor w/ Rust
Hach 19400-10 1940010 TitraStir
Hach 19400-10 1940010 TitraStir
Hach 51350-60 5135060 Aquatrend/SOM Integrated Signal Output Module
Hach 51350-60 5135060 Aquatrend/SOM Integrated Signal Output Module
Haffmans GMO PENTAIR Inline Optical O2 Meter Interface Module
Hagiwara Electric HS100A-CHN
Hagiwara Electric HS100A-CHN
Hahn-Magnet GH 72 E/33 GH72E33 Electromagnetic Actuator
Hahn-Magnet GH 72 E/33 GH72E33 Electromagnetic Actuator
HAINBOOK BF02225600010012 Clamping Stick for P2
Hakko 443 Static Eliminator
Hakko 443 Static Eliminator
Hakko 486 Air Control Unit
Hakko 486 Air Control Unit
Hakko 490 490-1 Smoke Cleaner
Hakko 490 490-1 Smoke Cleaner
Hakko Electronics V612T10 Touch Screen Panel Interface AS IS
Hakko Electronics V612T10 Touch Screen Panel Interface AS IS
Hakko Electronics V710S Touchscreen Control Panel 100-240VAC w/ Deformed Screen
Hakko Electronics V710S Touchscreen Control Panel 100-240VAC w/ Deformed Screen
Hakko FE-510 FE510 Static Eliminator
Hakko FE-510 FE510 Static Eliminator
Haltec DSR 62S-15/15A DSR62S1515A Power Supply
Haltec DSR 62S-15/15A DSR62S1515A Power Supply
Haltec DSR 62S-30/30A Power Supply DEFORMED
Haltec DSR 62S-30/30A Power Supply DEFORMED
Hamamatsu A8924 AC Adaptor 3 Business Days
Hamamatsu A8924 AC Adaptor 3 Business Days
Hamamatsu K0U-22-84A KOU-22-84A Microfocus X-Ray Control Unit Main Board AS IS
Hamamatsu K0U-22-84A KOU-22-84A Microfocus X-Ray Control Unit Main Board AS IS
Hamamatsu Lightning Cure LC8 UV Spot Lightsource
Hamamatsu Lightning Cure LC8 UV Spot Lightsource
Hamamatsu Photonics MSI-130 MSI130 Microfocus X-Ray Control Unit
Hamamatsu Photonics MSI-130 MSI130 Microfocus X-Ray Control Unit
Hamamatsu Photonics V10905P P.S. X-Ray Image Intensifier Power Supply
Hamamatsu Photonics V10905P P.S. X-Ray Image Intensifier Power Supply
HAMEG Instruments HM 8122 HM8122 Programmable Counter/Timer w/ Breakage