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

Allen Bradley 193-EC2BB /C E3 Plus 3-15 A Overload Relay WITH Adapter 193-ECPM1

Allen Bradley 193-ECM-ETR / A E300 EtherNet/IP Communication Module

Allen Bradley 194E-A25-1753 /B SWITCH DISCONNECTOR BASE MOUNTED 0-1/3 POLES 25A

Allen Bradley 194L-E12-4503 Inductive Load-Rated Control/Load Switch

Allen Bradley 2080-LC30-24QBB /A Micro830 Controller 2080-SERIALISOL + 2080-IF2

Allen Bradley 2090-CPWM7DF-16AA09 Cable 9m Power & Feedback Series A

Allen Bradley 20AB4P2A3NYNNDC0 PowerFlex 70 Adjustable Frequency AC Drive 1HP

Allen Bradley 20AC015A0AYNANC0 PowerFlex 70 AC Drive 10 HP (7.5kW)

Allen Bradley 20AD2P1A3AYNANC0 PowerFlex 70 AC Drive 1 HP (0.75kW)

Allen Bradley 20-COMM-H /A PowerFlex RS-485 HVAC Adapter

Allen Bradley 20-HIM-C5S SERIES A PowerFlex Programmer Only HIM

Allen Bradley 22A-A4P5N114 /A PowerFlex 4- 0.75 kW (1 HP) AC Drive

Allen Bradley 22-COMM-E SER. A Communication Adapter, RS485 To EtherNet, IP

Allen Bradley 22F-A4P2N103 SER: A PowerFlex 4M 0.75 kW (1 HP) AC Drive

Allen Bradley 22F-A4P2N113 /A PowerFlex 4M- 0.75 kW (1 HP) AC Drive

ALLEN BRADLEY 22-XCOMM-DC-BASE CONTROLNET ADAPTER

ALLEN BRADLEY 22-XCOMM-DC-BASE CONTROLNET ADAPTER

ALLEN BRADLEY 22-XCOMM-DC-BASE CONTROLNET ADAPTER

ALLEN BRADLEY 22-XCOMM-DC-BASE CONTROLNET ADAPTER

Allen Bradley 25B-A2P5N114 POWER FLEX 525 AC DRIVE 0.4 kW / 0.5HP

Allen Bradley 2711-B5A10 5.5 Monochrome Touch Screen Keypad Display

ALLEN BRADLEY 2711-B6C2L1X OPERATOR PANEL PANELVIEW 600

Allen Bradley 2711-K10C15X SER: E PanelView 1000 Color Terminal 10-inch

Allen Bradley 2711-K3A10L1X SER A REV C FRN 4.20 PanelView 300 Standard Terminal

Allen Bradley 2711P-B12C4A2 SER: A PanelView Plus 1250 Assembled Terminal

ALLEN BRADLEY 2711P-T7C4D8K /A PanelView Plus 6.5" Assembled Terminal

Allen Bradley 440F-C252D Guardmaster SAFEDGE Control Unit SECD252

Allen Bradley 440G-T27127 Safety Interlock Switch w/ Guard Locking TLS2-GD2

Allen Bradley 440G-T2NBNP2-1L Safety Interlock Switch w/ Guard Locking TLS2-GD2

Allen Bradley 440R-D23171 SER. A Safety Relay MSR125HP

Allen Bradley 440R-G23029 / A Guardmaster MINOTAUR MSR10RD Safety Relay

Allen Bradley 440R-K23041 Guardmaster MINOTAUR MSR12T Safety Relay Unit

Allen Bradley 440R-M23084 Safety Relay MSR138.1DP 24V AC/DC

Allen Bradley 440R-N23123 SER. A Safety Relay MSR126R

Allen Bradley 440R-N23125 SER. B Safety Relay MSR127T

Allen Bradley 440R-N23129 /C Guardmaster MSR127R Safety Relay

Allen Bradley 440R-N23129 SER. C Guardmaster Safety Relay MSR127R

Allen Bradley 5094-IF8IHXT /A 5094XT Analog 8 Input Isolated HART FW: 3.012

Allen Bradley 700-NT200 Series-C Industrial Control Relay 120V 60HZ

Allen Bradley 77135-231-51G COMM BOARD FOR PANELVIEW 77135-230-05A

Allen Bradley 77143-218-54 CHG LTR. D PC BOARD FOR PANELVIEW

Allen Bradley 77143-229-51 CHG. LTR. C POWER SUPPLY BOARD FOR PANELVIEW

Allen Bradley 800FM-SM22 /A Maintained Selector Switch Black

Allen Bradley 800FP-MP44 /B 40mm Push/Pull RED

Allen Bradley 9300-RADM1/B Remote Access Dial-In Data/Fax Modem

Allen Bradley CAT# 6189-FPABAGPS SER D AGP SVGA VIDEO CARD

Allen Bradley ProcessLogix Redundancy Module 1757-SRM Series: B

Allen Bradley SLC500 Cat No.: 1747-BSN /B Backup Scanner Module

Allen Bradley XM-160 Cat. 1440-VDRS06-00RH Rev. A Ser. A Direct Vibration Module

Allen-Bradley 02-30481-0001 Rev. E Power Supply Board

Allen-Bradley 100-A75ND3 Contactor 75A 110/120V 50/60Hz 3 Pole

Allen-Bradley 100-B110ND3 Non Reversing Contactor Ser. B 110A 3-Pole

Allen-Bradley 100-B110ND3 Non-Reversing Contactor 110A 3-Pole DAMAGE

Allen-Bradley 100-B300NA3 Contactor 230/240V 300 Amp

Allen-Bradley 100-C12ZD400 Contactor 690V 32A Coil 110VDC Series A

Allen-Bradley 100-C12ZJ300 Series A Contactor 24VDC 1NO 3P

Allen-Bradley 100-C16DJ400 Contactor 4-Pole 4NO 24VDC 32A 6kV Uimp

Allen-Bradley 100-C30EQ00 Series C Contactor 3 Phase 600VAC Max 24V DC

Allen-Bradley 100-C30QJ00 Ser C Control Relay 24V DC E Coil

Allen-Bradley 100-C43EJ00 Contactor 24VDC 60Hz Coil 3P 43A

Allen-Bradley 100-C72C00 Contactor 550/600V 50/60Hz 100A

Allen-Bradley 100-C72J00 Series A Contactor 24VDC 100A 690V CRACKED

Allen-Bradley 100S-C23DJ431BC Series C Contactor 600VAC 24VDC

Allen-Bradley 100S-C43DJ04C Ser. A Safety Contactor 600V 24VDC Coil

Allen-Bradley 100S-C43DJ14C Ser. A Safety Contactor 24VDC Coil NO AUX BLOCK

Allen-Bradley 100S-C43ZJ14C Contactor 600V 24VDC

Allen-Bradley 100S-C43ZJ14C Contactor 600V 24VDC COSMETIC DAMAGE

Allen-Bradley 100S-C43ZJ14C Contactor 600V 24VDC W/ 100S-B10

Allen-Bradley 100S-D250EZJ22BC Series B Safety Contactor 24VDC Coil

Allen-Bradley 104-C09D22 Reversing AC Contactor 110/120V 50/60Hz

Allen-Bradley 104-C09D22 Reversing AC Contactor 110/120V MISSING BRACKET

Allen-Bradley 104-C30DJ22 Ser. C Reversing Contactor 24VDC MISSING BUS BAR

Allen-Bradley 1080-109-C12AD10-XXX-1-4R-6E-7 Enclosed Motor Starter

Allen-Bradley 112-A09AC-A/C-3-6 Fusible Disconnect 7.5HP 9A 3PH 60Hz NOP

Allen-Bradley 112-DABX Combination Starter 600VAC

Allen-Bradley 117755 Main CPU Board Missing Mounting Screws

Allen-Bradley 117760 PC Board

Allen-Bradley 1203-SM1 Scanner Communication Module 5/12VDC 300/60mA NWB

Allen-Bradley 1203-SM1 SLC-500 to Scanport Communications Module Ser A

Allen-Bradley 126622 PC Module BROKEN CLIP

Allen-Bradley 1300-DMT Series B Rev.09 Programming Terminal 12V@0.150A

Allen-Bradley 1302-C001-AA Servo Drive 1HP 575VAC *Crack to Enclosure*

Allen-Bradley 1302-C001AA Servo Drive 1HP 575VAC 2A 3Ph 60Hz

Allen-Bradley 1302-C001-AF AC Drive 1HP 575VAC 1.6A COVER HAS DAMAGE

Allen-Bradley 1302-C001-AF AC Drive 1HP Input 575VAC 2.0A 3Ph 60Hz

Allen-Bradley 1302-C003-AA AC Drive 3HP 575VAC 4.3A 0-240HZ AS IS

Allen-Bradley 1302-C010-AA AC Drive *No Power* *Cracked Front Plate AS IS

Allen-Bradley 1305-AA02A-FR AC Drive SER C 0.5HP 3Ph 200-230V 2.3A

Allen-Bradley 1305-AA02A-FR AC Drive SER C 0.5HP MISSING KEYPAD FLAP

Allen-Bradley 1305-AA03A Three Phase Drive 0.75HP 0.55kW 200-230VAC

Allen-Bradley 1305-AA04A AC Drive SER C 1HP 3Ph 200-230V DAMAGED

Allen-Bradley 1305-AA08A AC Drive Nema Type 1 2HP 8A 260VAC

Allen-Bradley 1305-AA12A AC Drive 3HP 3ph 200-230V 12A No Cover AS IS

Allen-Bradley 1305-AA12A AC Drive SER C 3HP 3PH MISSING PARTS AS IS

Allen-Bradley 1305-BA03A-HA2 AC Drive 1HP 380-480VAC

Allen-Bradley 1305-BA04A AC Drive 2HP 3ph 380-460V 4A 0-400Hz AS IS

Allen-Bradley 1305-BA04A-FR Adjustable Frequency AC Drive 2Hp 380-460V AS IS

Allen-Bradley 1305-BA04A-HAP AC Drive 2HP 380-480VAC AS IS

Allen-Bradley 1305-BA04AX AC Drive Variable Frequency 2HP 380-460V 4A

Allen-Bradley 1326AB-A2E-11 Servo Motor 0.8kW 3000rpm 32Nm 1.820ohm 5.2A

Allen-Bradley 1326AB-A430E-21 Servo Motor 3000RPM 6.6Nm 1.080 Ohms 9.5A

Allen-Bradley 1326AB-B410G-21 Servo Motor 5000RPM

Allen-Bradley 1326AB-B430E-21-K4 AC Servo Motor 1.5kW 3200RPM .88VDC

Allen-Bradley 1326AB-B515E-21 Servo Motor 460V 10.4Nm 3.26Ohm 6.69A

Allen-Bradley 1326AB-B515G-M2L AC Servo Motor 2.9kW 5000RPM 460V 10.4Nm

Allen-Bradley 1326AB-PGB03-21 Precision Gearhead 3:1 Ratio

Allen-Bradley 1326AD-B1E-11-065 Bulletin 1326 AC Servo Motor 1.6Kw

Allen-Bradley 1326-CAPB-50 Power Cable for Servo Motor 50ft 9Pin

Allen-Bradley 1326-CEU-50 Servo Encoder Feedback Motor Cable 50Ft 10Pin

Allen-Bradley 1326DS-L3D-FL-E1 DC Servo Motor 2500RPM 28.1Lb-in 9.2A

Allen-Bradley 1331-AAF10 Drive SER C 3Ph 230VAC 4.2A 1.67kVA 50/60Hz

Allen-Bradley 1332-YAA AC Motor Drive 2HP 230V 4.5KVA 11.2A 50/60Hz

Allen-Bradley 1332-YAC Series A Adj. Frequency AC Drive 3.8kVA 575V

Allen-Bradley 1333-MOD-KB2-5 129038 Dynamic Brake Module 2HP 460V

Allen-Bradley 1333-ZAA AC Drive Ser: C 230V 50-60 HZ 4.1 AMPS

Allen-Bradley 1333-ZAA AC Drive Ser: D+ 230V 50-60

Allen-Bradley 1333-ZAA Drive SER D 3/4HP 3Ph 230/208/200VAC 3.2A 60Hz

Allen-Bradley 1336-B003-EOD-FA2-L3-S1 Drive 460VAC 3HP 6A

Allen-Bradley 1336-B003-EOD-L3 Drive 3-Ph 3HP 5.7A 460VAC w/ L3 Encoder

Allen-Bradley 1336-C010-EAD AC Inverter Drive 12.1A 9.8kVA 10HP 3Ph 575V

Allen-Bradley 1336-C010-EOD AC Inverter Drive 9.8kVA 10HP 3Ph 575V

Allen-Bradley 1336-C015-EAE-FA2 AC Inverter Drive 3Ph 15.0kVA 15HP 575V

Allen-Bradley 1336F-BRF100-AN-EN AC Drive 3Ph 18.6Kva 380/480V 22.4A

Allen-Bradley 1336F-BRF50-AN-EN-HASB Drive 3ph 0/460V 8.4/9A 0/400Hz

Allen-Bradley 1336F-CWF150-AN-EN AC Drive 17/20KVA 600V 19A 3Ph 400Hz. AS IS

Allen-Bradley 1336-MOD-KB005 Dynamic Brake For 680-460V AC Drives

Allen-Bradley 1336-MOD-WC035 Dynamic Brake For 575VAC A.F. Drives

Allen-Bradley 1336-PB-SP20E Precharge Real Board

Allen-Bradley 1336S-AQF20-AA-EN5-HA2-L6 AC Drive SER D 3Ph 0-230V 8A

Allen-Bradley 1336S-AQF50-AA-EN Drive 5HP 3Ph 230VAC 0/400Hz

Allen-Bradley 1336S-B075-AN-EN4 AC Drive Circuit Board 3Ph 0-460V 106A AS IS

Allen-Bradley 1336S-BRF10-AN-EN3 AC Drive