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

EDWARDS IH1000 MK5 A59030945XS Vacuum Dry Pump, 148157

EDWARDS iH1000 MK5 A59030945XS Vacuum Dry Pump, 154626

EDWARDS IH1000 MK5 NRY0PY000XS Vacuum Dry Pump, 148085

EDWARDS IH1000 MK5 NRY0PY000XS Vacuum Dry Pump, 148117

EDWARDS IH1000 MK5 NRY12S000XS Vacuum Dry Pump, 148081

EDWARDS IH1000 MK5 NRY12S000XS Vacuum Dry Pump, 148100

EDWARDS IH1000 MK5 NRY12S000XS Vacuum Dry Pump, 148111

EDWARDS IH1000 MK5 NRY12S000XS Vacuum Dry Pump, 148118

EDWARDS IH1000 MK5 SS NRY0PY000XS Vacuum Dry Pump, 148072

EDWARDS IH1000 MK5 SS NRY0PY000XS Vacuum Dry Pump, 148113

EDWARDS IH1000 MK5 SS NRY0PY000XS Vacuum Dry Pump, 148123

EDWARDS IH1000 MK5 SS NRY0PY000XS Vacuum Dry Pump, 148158

EDWARDS IH1000 MK5 SS NRY0PY000XS Vacuum Dry Pump, 154630

EDWARDS IH1000 MK5 SS NRY0PY000XS Vacuum Dry Pump, 154631

EDWARDS IH1000 NL A53352945XS Vacuum Dry Pump, 148104

EDWARDS IH1000 NL A53352945XS Vacuum Dry Pump, 148152

EDWARDS IH1000 NL AG3352945XSVacuum Dry Pump, 148012

EDWARDS IH1000 NRY12S000XS Vacuum Dry Pump, 148069

EDWARDS IH1000NL A53352945XS Vacuum Dry Pump, 148114

EDWARDS iH160  LOOK NRY0QQ000 Vacuum Dry Pump, 148003

EDWARDS iH160  LOOK NRY0QQ000 Vacuum Dry Pump, 148006

EDWARDS iH160  LOOK NRY0QQ000 Vacuum Dry Pump, 148066

EDWARDS iH160  LOOK NRY0QQ000 Vacuum Dry Pump, 148076

EDWARDS iH160  LOOK NRY0QQ000 Vacuum Dry Pump, 148079

EDWARDS iH160  LOOK NRY0QQ000 Vacuum Dry Pump, 148102

EDWARDS IH1800HTX NRY12T000XS Vacuum Dry Pump, 148074

EDWARDS IH1800SC MK5 NRY0QP000XS Vacuum Dry Pump, 148112

EDWARDS iH1800SC NRB633000R Vacuum Dry Pump, 148013

EDWARDS iH1800SC NRB633000XS Vacuum Dry Pump, 148015

EDWARDS IH1800SC NRB977000XS Vacuum Dry Pump, 148103

EDWARDS IH600 MK5 200 A590-20-945 Vacuum Dry Pump, 148110

EDWARDS iH80  LOOK A533-50-945 Vacuum Dry Pump, 148005

EDWARDS IH80 A53350945XS Vacuum Dry Pump, 148084

EDWARDS IH80 A59000945 Vacuum Dry Pump, 148065

EDWARDS IH80 A59000945XS Vacuum Dry Pump, 148004

EDWARDS IH80 A59000945XS Vacuum Dry Pump, 148007

EDWARDS IH80 A59000945XS Vacuum Dry Pump, 148008

EDWARDS IH80 A59000945XS Vacuum Dry Pump, 148087

EDWARDS IH80 A59000945XS Vacuum Dry Pump, 148091

EDWARDS IH80 A59000945XS Vacuum Dry Pump, 148096

EDWARDS IH80 MK5 200V A590-00-945 Vacuum Dry Pump, 148060

EDWARDS IH80 MK5 200V A590-00-945 Vacuum Dry Pump, 148075

EDWARDS IH80 MK5 A590-00-945 Vacuum Dry Pump, 148054

EDWARDS IH80 MK5 A590-00-945 Vacuum Dry Pump, 148088

EDWARDS IH80 MK5 A590-00-945 Vacuum Dry Pump, 148122

EDWARDS IH80 MK5 A59000945XS Vacuum Dry Pump, 148068

EDWARDS IH80 MK5 A59000945XS Vacuum Dry Pump, 148082

Edwards IPX 500 NXD5-14-000 Dry Vacuum Pump, 108725

EDWARDS IXL120N SPI SYS A54112219 Dry Pump, 109791

Edwards NRY4TN000 Vacuum Pump, EPX500N, EFEM, 796-901121-006BL6S, 159452

EDWARDS nXL110i DRY VACUUM PUMP, HV NW50/NW50, A77012420, 117487

EDWARDS nXL110i DRY VACUUM PUMP, HV NW50/NW50, A77012420, 155418

EDWARDS PUMP P5000 ETCH INTERFACE UNIT CONTROL BOX W/ Cables, 175526

Edwards Signaling 340A-N5  

Edwards Signaling 50A-N5-40WH 120VAC 265 Lumen Amber Warning Light

EDWARDS SIGNALING ADAPTABEACON BLUE FLASHING PARTY LIGHT 50B-N5-40WH

EDWARDS SYSTEMS EST-3 FIRE ALARM SYSTEM CONTROL PANEL CPU, DISPLAY, 10-SLOTS

Edwin L. Wiegand Co. PIT-15 Thermostat Chromalox 0-150 Degrees Fahrenheit PIT15

EEC lighting Contactor 120 volt coil 330 400 Amp EEC330

EEJA TR-011 I/O CABLE, CONTROLLER, ROBOT 2 TYPE KDF, 233426033, 124886

EEJA UTC-350R TR-001-R ROBOT 1, UTC350R, 137953

EFDCB150-01 2/96

EFECTOR IN-2004-BBOA-IN0085 / IN2004BBOAIN0085 ()

EG PROBER 4080 4090 FET POWER DAR ASSY 266875-002 REV F, 107191

EG&G Electro-Optics PS-450 820VDC Flashtube Power Supply

EG&G TORQUE SYSTEM PM FIELD DC SERVO MOTOR S/N 216979,

EG&G TORQUE SYSTEM PM FIELD DC SERVO MOTOR S/N 216997,

ega UBP 89 II control panel Bosch DB600/500/301

Ege Electronics | SC 440-A2-GSPL Flow Compact Device P10522

EGE-Electronics Flow Compact Sensor SC 440-A4-GSP

EGE-Electronics Proximity Sensor IDT 160 WS | P31281

EGS 1.5KVA TRANSFORMER HS14F15BS 190/440-110/220V CLASS 1101

EGS 3.0KVA TRANSFORMER HS14F3BS 190-440V 110/220V 1PH CLASS 1101

EGS APPLETON 2'' MALL IRON SEALING FITTING APP EYM-200  

EGS CURLEE EXPLOSION PROOF ENCLOSURE CE4KA .

EGS E750 0.75kVA Hevi-Duty Industrial Control Transformer

EGS E750 0.75kVA Hevi-Duty Industrial Control Transformer NIB

EGS E750 0.75kVA Hevi-Duty Industrial Control Transformer S36

EGS ELECTRIC CO BS200S Conduit Body Cover 2" Box of 20

EGS Electrical Group Cat.No.HS19F500B 1PH .500KVA Transformer 42946WVS

EGS Hevi-Duty 2kva transformer, 1ph, #HS1F2AS, pri-240/480v, sec-120/240v,

EGS HEVI-DUTY 3 KVA 4R Stainless Transformer HZ4X-3000 240/480 To 120 S17

EGS Hevi-Duty E1053PB Transformer 240/480 Primary 120 Secondary F

EGS SHIELDED DRIVE TRANSFORMER DT651H40S 40KVA 3PH 60HZ 460DELTA 460Y/266VAR

EGS,E1000,Industrial Control Transformer.  in factory packaging

EH14020 - SQUARE D 20A AMP 1P POLE 14kA@277V PLUG ON CIRCUIT BREAKER - NIB

 EHB3015  IN GOOD CONDITION 480V 15A 3 POLE 2 YR

EHB3050 Westinghouse Circuit Breaker 3 Pole 50 Amp 480V Adjustable Magnetic trip

EHB340301082 Square D 30 Amp 480V 3P Bolt On Shunt Trip Breaker  Old Stock

EHD2020 Westinghouse/Cutler Hammer Circuit Breakers

EI ELECTRONICS MagnaValve LP2000VAR VALVE

EIL INSTRUMENTS INC COOLER TEMP SENSOR SERIAL MODULE TP-2L 01706405

EJMM3559T, Baldor, 3HP, 3600 Rpm, 230/460V, 145JM, Pump, 35T921Q060G1

EK Automation LS5 F Rotary Laser Sensor

EK Automation LS5 F Rotary Laser Sensor | 63025-13C

EKD GELENKROHR CABLE CARRIER APPROX. 49.LONG

EKF System Central Unit CPU 68095-33132-ZAC 1

EKS EL100M2-6TX-2FX-SC-MM Ethernet Switch 0410001003333EV10-00 | Ver.: v1.3

EL GE ELGE PC BOARD BA 704 A W/ FAIRFILD RESISTOR ITELCOND ITACOIL TRANSFORMER

EL40A100Z5/28N6S3PSA2 Italy create 100 pulses of ELTRA rotary encoder

Elastic Network 1KW 24VDC 03-00009-01 Power Supply Card

Elastic Networks NTEW09AA 03-00009-01 RE Power Supply Board

Elastimold Thomas & Betts 600amp Load Break Elbow K656LRJ-0280-SG3 NIB

ELAU 13130245 PacDrive HW:90C4X FW:00.10.04