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。

Portwell PCOM-B219VG SBC MB  3.10GHz INTEL CORE i7-3612QE SR0ND CPU  16GB RAM

Kontron COMe-cCT6 N2600 SER, 36011-0000-16-3 Computer-On-Module

JDSU ONT-506, 3061-7003, 3061-7003-907R03 NETWORK MODULE

ESR MidiDrive D AC Servo Drive BN 6742.3310 B1-R1-A1-SK

Technology 80 MODEL 5650AC 901144/B Motion Control Board 800104 REV B

IXIA WIDEBAND LTE UE TEST PLATFORM 698-2690 MHz

Prime image TT time tailor Module DTM audio 88490 REV. A1

HP 2nd CPU Memory Board Workstation Z620 - 689471-00XEON E5-2643  16GB RAM

Huawei TE30 Videoconferencing Endpoint

Alcatel OS6850-P48X OmniSwitch 6850 48-Port Gigabit Layer 3 PoE Switch  PSU

QUINTEL LTE700  850 COMBINER (LTE: 698-787 MHz, 850: 824-894 MHz) AS-000843

VEP86316A Panasonic M1 Pc Board FOR AJ-HD3700

FANUC A20B-3300-0102 RISC PROCESSOR CARD

MOXA ioLogik E1261H-T REV: 1.1.0 ETHERNET REMOTE I/O

Agilent N2X N5604A 4 Port Tri-rate Ethernet Xr-2 EPON Card

VECTRA JUKI-752 VER:1.1 w/ JUKI-750E/752 WAFER-4823 VER 1.5A SBC / CARD

Lineage Power CP2000AC54PEZ POWER SUPPLIES 2000W

ixia / Agilent N2X N5553B 10/100/1000 Ethernet XP-2 Test Card

Sandvine PTS8210-C Policy Traffic Switch 100-240VAC 5A 50/60Hz PTS

Sandvine PTS8210 Policy Traffic Switch 100-240VAC 5A 50/60Hz PTS

SCALE 084-00202-4 MODEL 170-20810 MOTHERBOARD

Motorola GX2-PSDC10C Power Supply

NEC Y0461FA-V01C, Its-600 Oc-12 Fc, SNTCFE03AC

Ventek International Model 600 Automated Fee Machine Controller 02-272

Ixia XR2000 Active Monitoring Hardware Endpoint

Leyb TW 250 Turbo Molecular High Vacuum Pump 86255 860Hz

IXIA CPM1000T8-01 Gigabit Ethernet Content Processing Module (CPM), 8-port

Compuware Switching Power Supply CPR-1621-6M1

POWER-AC/DC POWER SUPPLY PFC375-4000F

Dell 09KPNV Precision T3500 Motherboard w/ Xeon 3.06GHZ W3550 CPU  HEAT SINK

Cherokee Intl SP707 Power Supply

NORTEL NTUG90GB Ets Switch

ALCATEL 3AL00316AFSA SNI260KDAA HIF902 1603 OC-12 1603/12SM OC-3 LS I/O FC/PC IF

ALCATEL 3AL00316ABRA SNIUSB01AA HIF902 1603 OC-12 1603/12SM OC-3 LS I/O FC/PC IF

QUINTEL QS8658-3 MOTOR ACTUATOR 8510R004, 648398-1

QUINTEL QS8658-3 MOTOR ACTUATOR 8510R005, 649563-1

NVision NV3512 CONTROL MODULE EM3502-01

Motorola DSR 6000 Professional Satellite Receiver 557448-001

BCM ADVANCED RESEARCH, INC. SQ593 MOTHERBOARD  CPU  RAM

Intel SOCKET 7 motherboard Mb82165087  PENTIUM MMX  RAM

IWill VA133PLUS MOTHERBOARD  850MHz INTEL CELERON SL54Q CPU  AVED RAM H/S/FAN

Scientific Atlanta Continuum Series 9890 ENCODER 9821 NTSC modulator P/N 546180

Scientific Atlanta Continuum Series 9890 ENCODER 9820 NTSC modulator P/N 546170

Ixia IxN2X Timing Distribution Module 870-0087

HP 2nd CPU Memory Board Workstation Z620 - 689471-00XEON E5-2620

POWER SUPPLY VEK8217 FOR Panasonic AJ-HD2700P HD2700 HD Digital D5 VCR/VTR

Intel 681538-304 AL440LX Motherboard (4A4LL0X0.86A. 0012.P02)  PENT III CPU

ARRIS / BIGBAND NETWORKS ASCM0129 MNG1200 Module

Agilent Keysight N2X N5540A 2-Slot Portable Chassis

MARSHALL ELECTRONICS V-R102DP-2C DUAL LCD RACK MOT

Evertz High Density MPEG-2 SD Decoder 3480DEC18-MP2SD-ASI18A

Evertz HD9650 HD Graticule Generator

S MICRO ASSY 411698000001 REV:5S UltraSPARC IIi SME 1430 400MHz  H/S

ALCATEL-LUCENT 3HE04164AA 7750 SR-7 SFM3-7 CONTROL PROCESSOR MODULE

NETZOOM ASI TRANSPORT INTERFACE CARD NPS0004-B001

NETZOOM DTM 622 OC-12C/STM-4C INTERFACE CARD NPS0018-X001

Ixia LM1000STX2 2-Port Dual-PHY (RJ45 and SFP) 10/100/1000 Mbps Ethernet Module

SuperMicro C7Z87 Motherboard  3.5 GHz Intel Core i7-4771 CPU  8GB Ram  H/S/F

IXIA LM1000TXS44-Port Ethernet 10/100/1000 A/N Ethernet COPPER LOAD MODULE

Ixia Optixia MSM10G 10GE XFP Multi-Services LAN / WAN Adapter

Cisco Catalyst Router 2400W AC PSU Cisco 34-1645-01, CNP3AH0BAA

SHUTTLE AV11S835 SOCKET 370 Motherboard WITH CELERON SL46T  HEATSINK AND FAN

BigBand Networks AFA-824-XA Module

DATATEK 2511B CARD

WHITE ROCK NETWORKS WR-DS312-111-00000 S0UIADEJAA

ARRIS / BIGBAND Networks ASCM0133 ASPC0059 GFR224B GIGE RF Module

Aurora Digital Transmitter DT3505

Fanuc A20B-8200-0040 18 i-B ENCODER CARD

Exide 101073045 Rev D MOTHERBOARD

Varian Model L900 Temperature Controller Module

Sony CCU-M5 Camera Control it 97D

BIGBAND NETWORKS GFG404A 4 PORT 1000BASEX GE BD MODULE

8 Mini-Circuits 15542 10dB SMA 50 ohm Attenuators'

Portwell PCOM-B219VG SBC MOTHERBOARD  3.10GHz Intel Core i7-3612QE SR0ND CPU

EVERTZ HD9155Q HD PRODUCTION AFTERBURNER

RAD ETX-220A ETX-220A_TWC/ACR/4XFP/10S/SYE/ESK 10G Ethernet Carrier 5601700000

SUPER X7DAL-E REV 1.1 MOTHERBOARD  DUAL 2.5GHz INTEL XEON SLANV CPU's

Ixia IXCATAPULT R-HMD770 PROCESSOR MICRO TCA (965-1044)

Ixia IXCATAPULT 965-1022-01 BittWare FGPA SF/GXAM card

Ixia IXCATAPULT 965-1037-01 BittWare FGPA SF/GXAM card

Agilent Srise Telecom N1776A OPT 010 Network Profiler Spectrum Analyzer

Future Power Socket 370 motherboard FP-VA693A WITH CPU 64MB RAM

ISIS GROUP S8400 DIGITAL A/V SWITCHER

Martin Maxedia DMX 10  Broadcast Video Switcher Playback Rack Mot

Agilent N2X 2 SLOT CHASSIS E7912

PowerVu SCIENTIFIC ATLANTA D9852 DUAL DECRYPTION Receiver CLC:UUU

port 75160 mHz - kHz Chopper Controller

GALAXIA ELECTRONICS POWER DATA DISTRIBUTION FOR DMX LIGHTING PDD-400

ZYTEC 325W Power Supply For Netra 1125 S Server EP071316-B

SCIENTIFIC ATLANTA D9479-12 W/RF 4005986 GIGAQAM MODULATOR AC DUAL SFP 4013006

ALCATEL LUCENT 3AL00424AAAB / 3AL00426AAAB SNCBCAA CCM 101 PROGRAMMABLE OC48

JDSU ONT-506, Control Panel Screen  Case handle, T-51863D150J-FW-A-AE

Arris CHP-SMM-2 System Management Module Max5000

KEYENCE GL-R20H Safety Light Curtain Set Receiver  Transmitter  Cables/Bracket

ARTESYN 7001586-J000 / Cisco 341-0400-04 A0 Power Supply PWR-2KW-DC-V2 V03

Agilent 1535-5238 CPU Module 1.6GHz 1GB DDR SDRAM 40Gb Drive

Agilent 1535-5238 CPU Module 1.6GHz 1GB DDR SDRAM 40Gb Drive

IBM 10L6653 MOTHERBOARD with CPU, HEAT SINK AND FAN, 32MB RAM

Spirent Adtech AX/4000 401317 Rev A Frame Relay Sync Interface

0 IS43TR16512B-107MBL SDRAM - DDR3 Memory IC 2Gb (128M x 16) Parallel

RadiSys CEQM67-2515-0 INDUSTRIAL SBC MOTHERBOARD  4GB RAM

RadiSys CEGM45T2-P84-0 INDUSTRIAL SBC MOTHERBOARD  4GB RAM

BIGBAND NETWORKS / ARRIS ENSEMBLE CARD 4XA4 ASCM0174 BGB00097 16-OUT I/O CARD

IXIA / Agilent J7244A-002 OC-48/STM-16 Multi-Rate TX/RX Module for OmniBER XM

VECTRA JUKI-752 VER:1.1 w/ JUKI-750E/752 WAFER-4823 VER 1.3  4MB KINGSTON RAM

ASTEC MP8-3L-2D-1E-05(-413), 73-580-4013, VAD610610, 902045 Power Supply

Arris ARCT03025 AF C4 CAM 24U CARD CAM-01240W P/N 790599

ARRIS NETWORK ACCESS MODULE ARCT00562 1X Gigabit Module

Motorola SEM v8 SmartStream Encryptor Modulator 507199-001-00

ADC N-MAB30FA RF WORX AMPLIFIER

J-MARK J-5TXC Ver 2 MOTHERBOARD  233MHz INTEL PENTIUM MMX SL27S CPU

MURATA 2000W FRONT END HOT SWAP REDDANT POWER SUPPLY D1U-W-2000-12-HA2FHC

Spirent TestCenter CPU-5001A 8 PORT 10/100/1000 HYPERMETRICS AP TEST MODULE

C-COR PLEXIS MFX FOML-9366 DFOM CARD

C-COR PLEXIS MFX FOML-9360 DFOM CARD

C-COR PLEXIS MFX PSLC-9780 SWITCH CARD

C-COR PLEXIS MFX FOML-9350 FOM STATUS CARD

C-COR PLEXIS MFX EDAC-9275 EDFA 20dBm GF STATUS CARD

C-COR PLEXIS MFX SCLC-9550-MA SYSTEM CONTROLLER CARD

IXIA LM10GULF 1-PORT 10 GIGABIT IPHY POS, WAN/LAN 1310NM MODULE

HP 708610-001 708610-601 MOTHERBOARD

ULTECH ITV INJECTOR DV2000 IVERSAL VBI ENCODER/SUBTITLE GENERATOR

IXIA ALM1000T8 APPLICATION MODULE

GANDI INNOVATIONS HEAD I/O DRVR FLAT BED REV 1.0 05/2004

GANDI INNOVATIONS HEAD I/O PWR FLAT BED REV 1.0 05/2004

Granville-Phillips Series 354, 354005-TE-T Micro-Ion Vacuum Gauge Module Rev.5

NORTEL NTUG90GD OM 5200 ETS COMMS MODULE

Cisco N20-B6625-1 V02 UCS B200 BLD SRVR  2X E5504  12GB RAM  2 10K 146GB SAS

Iwill VD133Pro Ver. 1.2 Socket 370 ATX Motherboard

 SPIRENT CTL-9001A CONTROLLER CARD FOR SPT-9000A CHASSIS TEST CENTER

676794-302 Intel System Board PD440FX  INCLUDES CPU  RAM

DELL PII 333MHz MOTHERBOARD 00087113-12415-825-00AB REV. A03