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。

DFI EP-4SGM8I Motherboard

Kontron 1061-2806-MOD Nano-ITX CPU Board

Kontron 01036-0000-53-4 PC/104plus CPU Board

Astec 73-540-0989| MP4-2F-1F-20 MVP Series | 400/600 Watt | Modular Power Supply

Kontron 01025-6400-13-3 MOPS/520 CPU Board | PC/104 Single Board Computer (SBC)

Arbor EmCore-s419DVL Rev 1.0 CPU Board

MDC KAV-100M-P-1034 Valve

LTX Credence 865-7401-02 Circuit Board

Panasonic WJ-HD316 Digital Disk Recorder

Panasonic WJ-HD316 Digital Disk Recorder

IEI PCISA-C800EVR-RS-1G -R20 CPU Board

BR Automation X67DM9321.L12 X67 X67 Digital Mixed Module

Applied Materials 0190-22543 Gateway Module

Soshin Electric NF3200C-RQ2 Main Noise Filter

MKS 722B02TCE2FA Vacuum Pressure Transducer

Avalue LPC-1203 Touch Panel PC

IEI NOVA-7895NFWDV CPU Boards

Boser HS6237 VER:2.2 CPU Board

Allen-Bradley 006S107-00-013 CPU Board

Kollmorgen AKM21E-ANCNC-00 Servo Motor

Philips 9415-019-82701 Power Supply For CM20 Transmission Electron Microscope

Epox EP-4BDAE Motherboard

Epox EP-BX3 Motherboard

Yutaka Electric UPS610HUL interruptible Power Supply

Ziehl-Abegg 0040-80489 RH35M-4DK.4C.1R Centrifugal Fan

Nexcom NDIB541 CPU Board

Advantech CI6BM-B1 CPU Board

DFI-Itox G7B332-050G RBA1 Industrial Motherboard

DFI-Itox G4H875-C-G G4H876-650G Industrial Motherboard

Rauland-Borg AC-2935 Control Board | With Terminal Block | Supports NCS3000

Nexcom NEX716VL2G ATX Motherboard

Traco Power TIS 600-148 Industrial Power Supply

IBM 23L7485 Server Mainboard

Axiomtek SBC81200 CPU Board

Nexcom PEAK-703P CPU Board

Giddings and Lewis 401-34435-00 Low-inertia Brushless Servo Motor

Mitsubishi MR-J3-20A-RX035T009 AC Servo Drive

Tem-Tech HYPFZW-105TS2 Pressure Sensor

RadiSys CH815C-2L | CH2L01-0-0 | 97-9025-02 | MicroATX Embedded Motherboard

Nexcom Peak650 Rev D Cpu Board

Nexcom ICEB 6100 Carrier Board

Kontron 18008-2560-08-3TE1 Cacheless ETX module with Intel Processor 800

Trenton 92-005891-00X CPU Board

IEI WAFER-US15WP-Z530P-R10 CPU Board

Thomas-Conrad TC6245 Network Interface Card

Kontron PCI-949 CPU Board

Aaeon COM-945 1907945003 COM  CPU Board

Nexcom NDIB540 REV:B CPU Board

CommScope 7163020 Fan

RadiSys ATCA-1200 RTM Remote Terminal it

Excelstor J840 Hard Disk Drive

EPOX EP-P4MKI Motherboard

Philips M3180-20022 Adapter Card

Radisys CE945GM2B-440-0 CPU Board

Aaeon PFM-535S-A10 PC/104 CPU Board

Itox G4V100-P-G CPU Boards

IEI NOVA-HM551-R10 CPU Board

Xiotech Corporation 830001-001 ISA Card

Adtech 11088 Multimode Interface Board

Kontron COMe-bSC2 i7-2655LE COM  CPU Board

Nexcom PEAK602VL-TN CPU Board

DFI-Itox PT800-AL Motherboard

LTX 865-2697-00 Control Board

Texas Instruments PCA-A-043401 Adapter Card

IEI ACE-890V Power Supply

IEI JUKI-EDEN-400N CPU Board

Giddings and Lewis 401-34438-00 Low-inertia Brushless Servo Motor

IEI ROCKY-6614-R10 CPU Board

Trenton 92-005498-XXX Backplane

Kontron 801-001 Rev A.0 CPU Board

Fincor 105591001 Circuit Board

BCM Advance Research RX965Q CPU Boards

Axiomtek SBC-8177 CPU Board

Fortron Source SM40P31AL Power Supply

Kontron 082-0210-10A Backplane

Alacron 10020-01303 REV 3.0 Frame Processing Board

Philips PageWriter Trim II 860288 ECG Machine

Emerson 396571-02-6 Series C Digital Input Module

AMAT 0190-53579 MKS AS01225G-03 Factory Interface I/O Module

Axiomtek SBC81822 Single Board Computer

Texas Micro CI5TTV-1.00 CPU Boards

AMAT 0100-00611 Smoke and Water Leak Detector Board

Giddings and Lewis NSM4214 Servo Motor

Advanced TCA C87952-001 CPU Board

IEI WAFER-6612-R10 CPU Board

IEI WAFER-US15WP-Z510P-R10 CPU Board

Jumptec 08001-0004-00-0 ChipDisk CPU Module

Ibase IB780 CPU Board

SMC XLA-80-M9NC 2-A07582-03 High Vacuum Angle Valve

Hass-Laser 0563628V03 1706011 18-21-11-L1 -L6 PCB Control Circuit Board

Superior Electric SS2000MD4 Stepper Drive Card

Reliance Electric N-2302-1-F00AA Servo Motor

Trumpf 1251377 B00 PSB100 Power Supply Board

Yaskawa ETC613062 VS616G3 Circuit Board| Power Board

Oriental Motor UDK5114NW2 Vexta 5-Phase Servo Drive

Hitachi ESC-1000F DC Single Channel Power Supply

WMS Gaming 5779-008315-09 CPU I/O Board

Simcheck INN-8448 Chip Adapter

SST DN3-PCU-2-E Interface Card

Thomas-Conrad TC3047-ST PCB Card

Eliwell EWPC905T Temperature Controller

Advantech PCA-6010 CPU Board

Arcom SBC-GX533-T-MO-FO-R6 CPU Boards

AcrosCE-B5692 CPU Board

Siemens 6SE9213-6CA40 Micromaster MM75/2 Frequency Inverter | Standard Model MM

Asyst Technologies ATR9100 9701-2936-01 Controller

MKS Baratron 627A.1TBD Capacitance Manometer

Keithley 238 High Current Source Measure its

IEI ICE-9102-1G512-R10 COM  CPU Board

CKD VEC-SHA8-X0326 Pressure Controller Card

Kontron 51004-1000-15-1DP CPU Board, COM SMARC-sXBTi E3815 1GB

Texas Instruments 545-1101 VME CPU Board

Texas Instruments WAM 1655575 VME Interface Board

Texas Instruments PCS 1655778 VME Board

Boser HS-6637 Half Size ISA Single Board Computer - Socket 370 133MHz FSB

Nexcom PEAK602VL_S160D CPU Board

Ziatech ZT 8801 Single Board Computer, V40 8 MHZ, 1MB DRAM, 512K EPROM, 1 RS-232

Asus WMTA ATX Motherboard

Arcom VIPER-400-M64-F16 CPU Board

Ampro Computers Inc 3351645F CPU Board

HCI HCI-DVD2 DVD Player

Nortel NII-100 CPU Board

Axiomtek SBC84510VEE CPU Board

York 031-01385-000 I/O Board

Lanner Electronics LEB-7021 CPU Board

Intel NUC5i3MYHE Single Board Computer

Leroy Somer 3 LS56/T AC Motor

Lanner MB-7541A CPU Board

DFI-Itox G7L330-B Industrial Motherboard

IEI TL-SBC VER2.1 CPU Board

Beckhoff C9900_A159_1 Add Card

Inet DLP-9210-03 Processor Board