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

LOTOF 5085 NOVACAP CAPACITOR, CERAMIC MULTILAYER 0603N300J251PT #Y134

LOTOF2 ASCO RED-HAT EXPLOSION PROOF SOLENOID VALVE 120V, EF8401A101, 260-304-1D

LOTS OFTECHSMART® #F90016 HVAC BLOWER MOTOR RESISTOR CONNECTOR FRONT STANDAR

LOTS OFTECHSMART® #F90020 HVAC BLOWER MOTOR RESISTOR CONNECTOR REAR STANDARD

LOTS OFTECHSMART® F90018 BLOWER MOTOR RESISTOR CONNECTOR

LOTS OFTECHSMART®#F90017 BLOWER MOTOR RESISTOR CONNECTOR (FRONT)

LOUISIANA ELECTRIC RIG SERVICE 160139 FIELD FLASHING PCB

LOVAL 3x2000W 254/440V 3103034 0306 HEATING ELEMENT

LOVEJOY 1L790 SIZE 8 ELEMENT

LOVE-JOY 1L798 S-FLEX COUPLING SIZE 5

LOVEJOY 3JN SLEEVE 685144-35356

LOVEJOY 3JN SLEEVE 685144-35356

LOVEJOY L-070S HUBX1/2

 LOVEJOY L-099-L-100 C01

LOVEJOY L-099-L-100 C01

LOVEJOY L-110 STANDARD JAW COUPLING 1.375 - LOT OFPCS

LOVEJOY ML090 15/16

LOVELY VINTAGE OLD BAKELITE CONTINUITY PANEL METER COLLECTIBLE fd1L13

LOVIBOND SD pH HANDHELD POCKET TESTER P/N : 194800-16

LOVIBOND SD 70 CON PORTABLE HANDHELD WATER TESTING METER 194802-16

LOW BEAM HEADLIGHT LAMP 710006176

LPKF AMP20 BOARD

LPKF BA 002100 POWER SUPPLY

LPKF BIN-IO8 BOARD

LPKF BP-3HSR BOARD + 3EA BP-AMP 982

LPKF CONTROL MODULE MA 001100

LPKF DISTRIBUTION MODULE BA 002100

LPKF HSR HSR962 BOARD

LPKF HSR MSCN-3 BOARD

LPKF MS-ETEL 991 BOARD

LR401 POLYFET RF TRANSISTOR 130W 28V 500MHz (x1) GENUINE UK STOCK fcb27.22

LRO 9055 ABRASIVE WHEEL

LRO 9057 ABRASIVE WHEEL

LS 725727205 PCB BOARD

LS APD-VS10(I5)N 6.4A AC SERVO DRIVER POWER ON

 LS APMC-FAL01AM8K2-EV02 AC SERVO MOTOR

LS APMC-FAL01AM8K2-EV02 SERVO MOTOR

LS APMC-FBL02AMK-EV02 SERVO MOTOR

LS IMC-III NO INTELLIGENT MOTOR CONTROLLER   

 LS L7NHA001U AC SERVO DRIVE

 LS L7NHA001U-EV02 AC SERVO DRIVE

LS MECAPION AC SERVO DRIVE APD-VS50S4N, AC SERVO MOTOR APM-SF55DGN2-SK

LS MECAPION METRONIX AC SERVO MOTOR APM-SC06ADN  

LS MECAPION METRONIX AC SERVO MOTOR APM-SC06ADN   RELABELING

LS PLC CPU Unit XGK-CPUH

LS PLC Main Base XGB-M08A

LS PLC Position Line Drive 2Axis Unit XGF-PD2H

LS PLC Position Line Drive 4Axis Unit XGF-PD4H

LS PLC Power Supply XGP-ACF2

LS PLC Rnet I/F Remote Unit XGL-RMEA

LS PLC RTD Input Unit XGF-RD4A

LS PLC SET XGB XBM-DN23S XBE-RY16A XBF-AD04A 2EA

LS PLC Temperature Unit XGF-TC4UD

LS PLC XGP-ACF2,XGK-CPUE,XGI-D24A [2EA],XGQ-TR4A [2EA],XGF-HD2A,XGF-PD3A

LS XP50-TTA/DC TOUCH PANEL

LSF4.7 FUNCTION MEASURING BOARD

LSI EB6110 S6 KARNAK A BGA,EB6110_ASSY BOARD,& EB6PWR4A S6 MIN BANANA JACK

LSMATEC Labortechnik-Analytik MCP-E 0. BED. V5.21, IS1533-0039 120W 230V #1646A6

LT MCOMP ZX90004 MOTOR PROTECTION RELAY 24V DC

LT1086MK ORIGINAL LINEAR TECHNOLOGY TO3 METAL VOLT REG UK STOCK x1 fcb16.77

LTE CAT4 DEVICE GEOSENSOR X MODEL DG800

LTI DRIVES CDB34.003C2.4

LTMM2-A11-20NB AXE MICROCOMPUTER DIGITAL SETTING METER

LTX 865-7393-03-IA,852-0262-00 REV-I VEN 2832 PECHF 860-7393-03-AA BOARD

LTX 865-7393-05 AB,852-0262-00 REV-AA VEN 2832 PECHF 860-7393-05-AA BOARD

LTX CBIFGL2 860-7478-01 REV AA 865-7478-021A BOARD

LTX CORP ACPC PWR3 BOARD 860-2736-03 REV:BA,865-2736-00 BOARD

LTX CORPORATION PM COMBO CIF HS_CLK 860-2759-03 AE 860-2759-01 BOARD

LTX HF TH ANALOG BACKPLANE 860-2758-03 REV AB 865-2758-00 JA BOARD

LTX SMS HF HT HEADCARD 316-0049-AB M1 860-2742-01 REV AA SMTC 4602 BOARD

LTX TDR COUPON 860-7401-01 REV AA 865-7401-02 AC SMTC 5002 BOARD

LUBE DEVICES INC. G307-3

LUBE DEVICES INC. RDF104-03

LUBE PUMP OIL PFA 203247-029-203, TOP-1ME100C-12MARVB, TOP-12MARVB, N4252032-005

LUBRICATING OIL PUMP G11121

LUCAS # PRC3430LUCAS SIDE HEADLIGHT STALK SWITCH FOR LANDROVERS

Lucent LEY1AE, WMPQABTCAA, Controller Interface,

LUCENT NS20N012AC,NS20N051BA,NS20N020FD,NS20N560HC,NS20N870BC,200DL,BAL917SHAD

LUCENT PCTEL 26dB GPS TIMING ANTENNA KS24019L112C GPS-TMG-26N  fcd3d

Lucent WAVESTAR S1:5 0M0N1, SNPQCE5AABB, WSA020,

Lucent WUA031, SNAPAL0AAA, 01MV114116012, Wavestar Optical Line Amplifier

LUCIFER 341B02 SOLENOID VALVE 5/2 WAY OPERATED

LUCIFER B121K03 SOLENOID VALVE WITH 481865K8F COIL 115V 60Hz 8W S12

Luer CAP, 30-6CP-C, 306CPC,  

LUMASENSE 3904070 1173 24VDC

LUNIS LLC XMV-11000, KODAK KAI-11000,F MOUNT, CCD SIZE(35MM*24MM) 11 Megapixel.

LUST CDA32.008,C1.4,HF,LTI DRIVES  

LUST MC7408 3X400-460VAC

LUST MC7408 3X400-460VAC

LUST Servo Drive Motor Set LSH-074-2-30-320/T1.B.S4 & CDE34.006.W2.2BR

LUST Servo Drive Motor Set LSH-097-2-30-320/T1.B.S4 & CDE34.006.W2.2BR

LUST Servo Driver CDA32.008.C1.3.HF / 1.5KW 230V

LUST Servo Motor LSH-074-3-30-560/T1, LSH074330560T1, #130Z17 Box A

LUTRON NOVA NF-10-WH FLUORESCENT DIMMER 120 VAC-60 Hz

LUTZ 41-RDL

LUXART LSE-CP SHOWER ELBOW POLISHED CHROMED

LUXTRON M200,0-5VDC,REV:3.08G,72-11300-02 REV:A

LVS LED LLLUMINATOR 8BIT CONTROLLER LVS-PN-2212-60

LVS LED LLLUMINATOR 8BIT CONTROLLER LVS-PN-2212-60,LV-RBOX-R83

LVS LED LLLUMINATOR 8BIT CONTROLLER LVS-PN-2224

M BRAUN. PRESSURE TRANSMITTER dTRANS p32, TN 43006875, 402051/999,

M.C.S. MC2002 PLC

M.T.I.INSTRUMENTS DIVISION AS1021SAI

M22520/1-01 BUCHANAN AF8 HAND CRIMP TOOL MIL-C-26482 ad1L47

M22520/1-01 BUCHANAN HAND CRIMP TOOL MIL-C-26482 ad1L46

M25 X6H METRIC THREAD PLUG GAGE GO 23. 701 & 23.925 NOGO

M2I CORPORATION HTOP05TQ-SD SCREEN IS BROKEN

M2I TOP CT0P3M TOUCH SCREEN

M30X3.5 TAPER THREADING HAND TAP

M42X20/I+ENTSTORUNG,LEIBINGER 54-003 428 SA,PUMP,SELLER

M6020P1P2EP REV:B EMB19551,EEC-M BACK PLANE BOARD

M-927 TELTONE COLLECTORS VINTAGE IC WHITE CERAMIC EARLY HYBRID CHIP FCB16.1

M9A IEEE 488 INTERFACE CARD PC-109A-D1 PWA 1066869-1 REV B/B

MAC 1323G-112D-15

MAC 1323G-112D-16

MAC 1357G-111D-15

MAC 301G111D-1

MAC 301G111D-1

MAC 301G-1120-1

MAC MANIFOLD BLOCK ASSY, 34B-L00-GDCA-1BX, 34B-LOO-GDCA-1BX MAC 101R

MAC MANIFOLD BLOCK ASSY, 34B-L00-GDCA-1BX, 34B-LOO-GDCA-1BX,

MAC MANIFOLD BLOCK ASSY, 34B-L00-GDCA-1BX, 34B-LOO-GDCA-1BX, #1633L

MAC SOLENOID VALVE, 82-FA-BAA-TM-DAAP-1DA, TM-DAAP-1DA,  #1221P15

MAC VALVE 35A-AAA-DDAJ-1KA, 35AAAADDAJ1KA, #1543A1

Mac Valve Solenoid 57C-13-121AA, 57C13121AA,

MACGREGOR 1087869 SEAL KIT 31-10415

MACGREGOR HS 314 2508-001 A PCB CARD 3142471-802

MACHINING RECOURCES MR110598 354A1300

MACHINING RESOURCES MR110597 354A1200

MACHZONE EXM-06M  

MACK 21656490 TRUCK DASH LIGTH LH INDICATOR PANEL