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。

Lenze 8400 Stateline C E84AVSCD2224SX0 2.2kW

OLYMPIA ELECTRONICS BSR-1001 ANALOGUE ADDRESSABLE FIRE ALARM PANELS

SIEMENS /WALLACE  TIERNAN CCU AAB2172 CHANGEOVER IT

CENTRALINE BY HONEYWELL CLEA2026B21 CONTROL IT /BACNET DDC SUB-CENTRAL

803.92.00H ABB DRL PRINTED CIRCUIT BOARD

ABB MicroFlex E150-230VAC Servo Drive E152A03EI0A

Edwards PS6 DEV-1206 Power Supply Module Card

LG-Ericsson MG-WTIB8.STG / 8 Base Wirless Terminal interface Board / TKSN9106201

Covidien Genius 2 Checker/Calibrator REF 303097 with Accessories

Morley IAS by Honeywell 714-001-112 Dxc1-s Single Loop Fire Alarm Control Panel

Electronikon LAN RS485 1/0 /1900 0710 12 / 12101231553

Schneider Electric LXM32AU60N4S003 SERVO DRIVE CN6 I/O W/O ACCESSORIES

AAV141 YOKOGAWA AAV141-S00 STYLE S2 ANALOG INPUT MODULE WITH ATK4A-00 S1

U-SyS U SERVER 2 BY PACIFIC CONTROLS WITHOUT ACCESSORIES

Gossen Metrawatt SECUTEST SIII Portable Electrical Safety Tester(FOR PARTS)

YOKOGAWA STLD-101*E / A2ER/MTS /NPE TOTALIZER MODULE W/O ANY ACCS.

Honeywell 2MLL-EFMTB Fast Ethernet I/F Module

NARDEUX SMIG 1724601/0 N.622

NARDEUX SMIA 70 1738601/0 N.2346

NARDEUX SMIA 70 1738601/0 N.2345

JRC JLN-550 DOPPLER SONAR NWW-60 DB WITHOUT ANY ACCESSORIES

NOTIFIER AFP-200 BLACK

Johnson Controls Metasys MS-NAE3510-2 Ver 9.0 -without cover

Siemens ALD-21 OPTO MOD REV 12 / 500-891618

Brüel  Kjær 4220 PistonphWith 124db Head - Sod Calibration Tool

Korenix JETNET 169.200.1.39 Spare 2 Compact Ethernet Switch JetNet 5010G

MARPOSS P1c 8833020110 SERVO MOTOR

ROCKWELL AUTOMATION AADVANCE 9110 PROCESSOR MODULE T9110

Korenix JETNET Compact Ethernet Switch JetNet 5018G-w

SIEMENS TXR-320 FIRE ALARM PANEL /NP- 2055 REV. 0

SEL SEL-751A Feeder Protection Relay P/N: 751A12B1B0X0X810100 - NO ACCESSORIES

Trend IQ251 PSU Board AP102060 with IQ251 Main Micro Board

ABB RK673 011-BA Power Supply RLMA 100 Board

SIEMENS 6DS1322-8BA TELEPERM MODULE

SAILOR TT-3606E Message Terminal by Thrane  Thrane

ACKERMANN By Honeywell 72700A1 Systevo Control

SIEMENS 6SC 9830 - 0HF20 BOARD 459 002.9275.20

Cleaver Scientific Mini 150vs / Minis-150VS - OK

NORDAC SK 500E-151-323-A-KAR / Part No: 275410151 Inverter Drive

Southern Avionics Company Switching Power Amplifier 125 WATT Module / SLE45000

2198-H003-ERS Allen Bradley Kinetix 5500 Servo Drive

DOMINO EPT010752 TOUCHPANEL TYPE 3 REV.A WITHOUT ANY ACCESSORIES

MOOG G771K226A ELECTRO HYDRAULIC SERVO VALVE

1  MOOG G771K226A ELECTRO HYDRAULIC SERVO VALVE

DANFOSS MASS 3000 MASSFLO FLOWMETER - Missing Back Cover

ABB HIEE20024R0001-UG A469 AE01/HIEE400038R0001

ABB 1KHL015502R0005, N4BD TEBIT PCB Card

ABB 1KHL015502R0006, N4BD TEBIT PCB Card

PBF PSU 5 Power Supply System 402243010069 - Without Accessories

GE FANUC Model: ES0611 IC754VCI06STD-BB Quick Panel View

NARDEUX SMIBM 1746601/3 N.1645

Gent by Honeywell 4269-588 REV 06  4269-591 REV 03 Main PCB Board

THRANE THRANE SAILOR TT-3606E MESSAGE TERMINAL - IT ONLY, NO ACCESSORIES

TREND IQ4E/16/BAC/24VAC -2050U531000 CONTROLLER

Straightpoint SW-C Wireless Load Shackle Firmware:1.10 Frequency:2.4GHz- NO ACCS

EndressHauser PMP51-6TRE2/101 Cerabar M Digital Pressure Transmitter -

GL Beijer MAC50/MV 00921A 24VDC / TRIED  

 MERLIN GERIN - SONDE / 3123926 CARTE INTERF. CAPT

NARDEUX SMIBM 1746601/3 N.1644

ELCOMETER 456 Basic F Coating Thickness Gauge - OK

Siemens 7MF8023-1EA14-1AJ7-Z Pressure Transmitter

SOCOMEC DU102 E302752G UPS Panel PCB Board -  Without  

SOCOMEC DU102 E302752F UPS Panel PCB Board -  Without  

ELCOMETER 456 A456CFBS Coating Thickness Gauge with Probe - TRIED  

CAREL PCO2 PCO2000BL0 REV.1.411 CONTROLLER - DAMAGED CASE

Allen Bradley Micro 850 Controller 280-LC50-48QWB

Caterpillar OLYMPIAN PowerWizard 1.1,1.1,2.1 ControlPanel 350-5851-01 FOR PARTS

Caterpillar EMCP 4.1 P/N 351-87-57-01 EMCP 4.1, 4.2 For Parts

KLOCKNER-MOELLER ZM 12-1250

EFORE POWER SUPPLY SR 91G680 / 48VDC 26A

Distech Contols ECL-453 Programmable Controller

Hirschmann RS20-0800T1T1EDBUHH Rail Switch RS20

Caterpillar EMCP 4.2 P/N 351-8758-02 EMCP 4.1, 4.2 For Parts

Caterpillar OLYMPIAN PowerWizard 1.1,1.1,2.1 ControlPanel 449-2590-00 For Parts

MAX LETATWIN LM-390A Cable ID Printer LM-390A/PC C72

SIEMENS 6SC 9830-0BD41 BOARD 459 002.9213.41

EBERLINE BC-4 BETA COTER

SIEMENS 6DS1723-8AL TELEPERM M ANALOG MODULE

HAM MX32 GAS CONTROL IT TYPE 22-28VDC 3,5A WITH BROKEN LOCK

HAM MX32 GAS CONTROL IT TYPE 100-240VAC 1.0-0.6A 50/60Hz W/O ANY ACCS.

520AID01 ABB 1KGT033100R0001

SIEMENS 6DS1122-8AA TELEPERM MONITOR COUPLER FOR CPU MODULE

SIEMENS 6DS1121-8BB TELEPERM CENTER CONTROLLER VOTER MODULE

Spy High Voltage Holiday Detectors

KEBA SX TPU 2 16/64 3HAC023195-001 Teach Pendant For Parts

WINMATE R08T230 8.4" MULTIMEDIA LCD TOUCH MONITOR

Analog Input Module, 8-CH, HART HAI805 With Base ABB ITU805

ABB HART Analog Output Module, 8-CH, HART HAO805  ITU805 HART MOTING BASE

IDEC IZUMI PLB-48M-D1R2 with PLB-M16R2 Programmable Controller

MITSUBISHI HC102S-SZ AC SERVO MOTOR

SmartFlex Industrial Cellular Router 10-60 VDC 1.5 AMAX (LPS)

RYCO 8831 Transmitter Cable Fault Locator - WITHOUT ANY ACCESSORIES

YOKOGAWA AS S9751AU-02 RIO Bus Interface Master Card w/o panel indicator.

SIMRAD ROBERTSON AS KONGSBERG SDP/SJS OT | P/N: 25007436 S MARINE CONTROLLER

BOLLFILTER BK2200 MAINBOARD for PROTECTION SYSTEM WITHOUT ACCESSORIES

SYMMETRY M2150-EN-DBU-S DATA BASE IT

EndressHauser Ersatzteil/spare part no: 71224775 / 71071282 Version PA

ALLEN BRADLEY 2711-K3A17L1 SER. A REV.C F/W 4.20 24VDC .42A MP

NEI Reyrolle Solkor Rf Pilot Wire Protection 93413-02

Yokogawa AA1543 -H61 S1 Analog Output Module

ENDRESSHAUSER PROSONIC T FMU230E-AA32

Siemens SFC AAD8002 Electronic Module Panel PMAS15 S24

Fluke/Phillips PM2813 Programmable Power Supply 60V/5A/60W - Without Accessories

Fluke/Phillips PM2813 Programmable Power Supply 30V/10A/60W- Without Accessories

Kawasaki 1KX-55 Robotic Control Printed Circuit Board / 1KX102687

COMPRESSOR CONTROLS ANTISURGE II - OK with Slightly Crack on the Screen

THERMO SCIENTIFIC ORION STAR A324 PH/ISE METER PORTABLE MULTIPARAMETER METER

Schneider Electric SEGCMV Intelligent Motor Control -  Without

BAUMULLER NURNBERG 3.8224 Ma DC CONTROLLER

SHELL AS-K15733 Ferrous Debris Monitor

DETCON PI-700 VOC GAS DETECTION SENSOR - WITHOUT COVER

 ListingEndressHauser SMARTEC CLD132-XCS138AB2 Conductivity Meter W/O ANY ACCS.

SIEMENS C79451-Z1038-U13 Teleperm M Power Supply Module

ECS GED 300 Variation GED300-0301100 S.P.A

CIAT MAIR CONNECT2 CONTROLS OPERATOR PANEL - WITHOUT ACCESSORIES

JRC PC4401 CMC-916-2 CPU CARD

CMZ SVM1608/SER.000 SERVO DRIVE

Satchwell MN50-LCD Management Controller

I Light SCMA0402 4x2.5A /SDK-U4-10 Adaptive Dimmer Supply 230V 10A MAX W/O ACCS.

YOKOGAWA AAI141-S00 STYLE 2 ANALOG INPUT MODULE-  WITH   

Honeywell CC11602 Board -  ONLY   

YOKOGAWA CP461 PROCESSOR MODULE CP461-11 S1

YOKOGAWA CP461 PROCESSOR MODULE CP461-51 S2

YOKOGAWA OR121-2/OR100 HANDY OSCILLOGRAPHIC RECORDER WITH BAG  ADAPTER

KORENIX Jetnet 3810f Ethernet Switch

Honeywell RTCU CO2 Temaline

Pintsch Bubenzer VSR2-SB/CMB2 Measurement Monitoring System Ver 023 Panel Board

Pintsch Bubenzer VSR2-SB/CMB2 Measurement Monitoring System Ver 022 Panel Board

Alerton AL-RS4N Bacnet IRM Application FCU Controller RS4N 230V W/O ANY ACCS.

VIDEOJET 239677 Rev.D Control System Board LTD 2012 CSB4

BBC  ABB GNT7 081 027 R1 / 9011/009 / GU 470 C

Siemens PXC50.D Automation Station 24VAC,1A 24VA 50-60Hz  W/O