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。

13061 APPLIED MATERIALS P-CHUCK LIFT, PRECISION 5000, MODULE MFG 0010-30029

26413 TEL PCB ASSY, E281-005025-12, E244-010015-12 E2B115-12/CPPC2

26560 APPLIED MATERIALS PCB, ARTWORK, SYS CTLR BACKPLANE 300MM EPI 0100-02653

27693 VAT VALVE GATE MONOVAT 02112-BA24-APN1

27965 APPLIED MATERIALS SHIELD, LOWER, 105MM SPACING, 1.50 LEAF 0021-30004

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22043 APPLIED MATERIALS AC SERVO MTR BL SUPER P5 P50B05020DXSAJMA01 0190-14828

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16567 REIS ROBS ROBOT TEACH PENDANT PROGRAMMER 3530026 W/ CABLE 3530029 PHG 10-2

29399 REIS ROBS ROBOT TEACH PENDANT 3530026 W/ CBL 3530028 LENGHT: 7.5M PHG 10-2

32827 MKS STAGE INLINE VALVE W/ LIMIT SWITCH, 99B0558, L2-40-SP1 796-001604-001

29815 APPLIED MATERIALS RF ASSY 0010-48311

32041 APPLIED MATERIALS SENSOR , ASM 300MM 0010-57168

26048 VARIAN Y TILT ENCODER  TYPE, E17287071 E19014580

28717 LAM RESEARCH 10-WAY MANIFOLD VALVE ASSY, 8 VALVES 839-024556-100

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10215 APPLIED MATERIALS KIT,ELECT,PER SLTESC PVD CHAMBER ENDURA 0242-22840

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28147 ADVANCED ENERGY PCB, MDX-L CE 12K DRIVE 2301283-A

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28297 GALIL MOTION CONTROL PCB, 4-AXIS MOTION CONTROLLER DMC-1340

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C2454 PROTECH PCB, SOCKET 775  INTEL Q965, SUPPORTS INTEL CORETM 2 PSB-602LF

34528 LAM RESEARCH ESC, FACILITY PLATE 715-042350-240

32954 CONTROL CONCEPTS SCR POWER CTLR, 300MM ENDURA SL SHARED 1095-1004

23767 LAM RESEARCH ENCL, RLY, DUAL TCU 853-004349-001

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16568 KOMATSU ZERO-CON ZC-114

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14578 NDS TOUCH SCREEN MON 90X0212-D WITH BRKT MOTING 0021-25720 CM-X15/AMRMS

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6821 MKS MFC, MASS-FLO CTLR, GAS: SIH4, RANGE: 300SCCM 1179BX52CR14VSPC1

6822 MKS MFC, MASS-FLO CTLR GAS: NH3, RANGE: 1000SCCM 1179BX23CR14NSPC1

6823 MKS MFC, MASS-FLO CTLR GAS: NH3, RANGE: 1000SCCM 1179BX53CR14NSPC1

6983 MKS MFC, TYPE 640, PRESSURE CONTROLLER 640A53MW1D32D

32084 TELEDYNE PERCENT OXYGEN ANAYLYZER, MODEL 3290 W/ PROBE REMOTE B82464 3290Z

35386 AXCELIS PADDLE, DUAL PAN ROBOT, 2-PIECE CERAMIC 602601

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11742 LAM RESEARCH WELDMENT, I NTFC, CHAMBER SEPARATE, NOZ REP 839-031197-103

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9517 REIS ROBOTICS ROBOT TEACH PENDANT PROGRAMMER, P/N: 3530026 PHG 10-2

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31990 LAM RESEARCH 3-WAY Ventil Assy, 6LVV-DPB111P-CM-43977 839-078004-012

32578 APPLIED MATERIALS Geradelinig Stellmotor Assy 0190-25081

32864 APPLIED MATERIALS Geradelinig Stellmotor Assy 0190-33877

25360 SIEMENS SIMATIC FLAT PANEL 12'' TOUCH EXT 6AV7861-1TB10-1AA0

15990 KNIEL POWER SUPPLY, ASML 4022.476.01551, 353-011-04 FPD 400.14,5PC/24.4

12758 LABNET HIGH CAPACITY DIGITAL SHAKER, S2040-1900-230V ORBIT 1900

12668 GE FANUC CPU W/240K USER MEM W/ETHERNET COMM IC693CPU364-CJ

C2069 HORIBA SC-1 MONITOR CS-220

C2143 ADVANCED MOTION CONTROLS PCB, Robot Arm Servo Amplifier Board PCG10A8-3

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C2182 ADVANCED MOTION CONTROLS PCB, Servo Amplifier Plate PC10A8-3

29878 VEXTA DC MOTOR W/ GEAR HEAD D3846-162 BXM6400-GH-K3

21890 ZIEHL-ABEGG CENTRIFUGAL FAN, MK085-4DK.07.U RH31M-4DK.2C.1R

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16444 EDWARDS SEIKI SEIKO TURBOMOLECULAR PUMP CTRL SCU-300

32576 APPLIED MATERIALS LINEAR ACTUATOR ASSY W/ SENSOR 80P99518 0190-47187

32870 APPLIED MATERIALS LINEAR ACTUATOR ASSY W/ SENSOR 80P99518 0190-24808

13135 EMERSON DX SERVO MOTOR, 240V, 0.76 HP, 0.57KW, P/N: 960097-01 DXE-316W

T250 MKS BARATRON CAPACITANCE MANOMETER, 0.1 TORR 629D.L1B

31327 MONTECH GEAR MOTOR SG-80/M56B4-B14/61:1

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21237 NOVELLUS WINDOW, SAPPHIRE 15-110411-00

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15207 LEYBOLD INFICON TRANSPECTOR RESIDUAL GAS ANALYZER W/SENSOR HEAD TSP TH100

 HDPCVD 0200-18093

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573 BOSCH SERVO DRIVE, VMA 21/KR 001-D 1070084284-210

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35163 LAM RESEARCH LIFTER CYLINDER 853-140051-101

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28870 FALA TECHNOLOGIES Keramik Lager Assy, B91551 52988R E8020

22612 HP PCB ASSY, 4135-00781, E7024A E6978-66542

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21915 NOVELLUS ASM CABLE, HEATER, GREEN 02-007356D04

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30432 AST CONTROLLER ASSY W/ LCCU, LCL, SLCU  WCU 11490-093

8796 APPLIED MATERIALS CABLE ASSY GAS INTCNT 50FT 0150-21236

32044 Animatics Motor Assy SM1720M

16151 APPLIED MATERIALS NOZZLE 4-HOLES 60 DEG, BAFFLE, ULTIMA 1.  0200-01009

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6797 MKS MFC, PRESSURE CONTROLLER, TYPE 649, 50TORR 649B-32709

27721 APPLIED MATERIALS CLAMP, INNER SHIELD, 300MM SIP 0020-08299

27205 NOVELLUS ELECTROSTATIC CHUCK, 200MM, 15-118976-00 02-134263-00

28768 TECHCON SYSTEMS DMP ROTARY AUGER VALVE TS5000DMP

C1916 ENTEGRIS NT INTERGRATED FLOW CONTROLLER 6500-T3-F02-D06-L-P2-U1

33863 APPLIED MATERIALS LINEAR ACTUATOR ASSY W/ SENSOR 80P99518 0190-33877