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。

NOVA CONTROL  (SB) 320-55000-00 390-55000

Scivex V-2500 Dc Gear Motor Switching 6 Port Valve Actuator, Medium Pressure

IBM 39Y8999 DPI 32amp/230V 3-phase HD C19 PDU with IEC309

ADTRAN SM 2GE 1187020G2 5187020G-1K Module with 1184561PG1 SFP Transceiver

Mindray Datascope Accutorr V Monitor 0998-00-2000-934A

SERVOTRONIX CDHD2 CDHD2-0552AEC2 REV: 02

VOLPI LIGHT IS VISION 25301 Dimensioned Drawing 500mm 2-arm Swan Neck

Zentech 9072A AC/DC Withstanding Voltage Tester

Dialogic DISI16W 83-0705-004 Card

Westclox Telegraph Key

Dahua DHI-MNVR4104-GF Mobile Video Recorder 1.0.01.02.10747 ( )

Iridium 9505 Satellite Phw/ ADAPTER  Antenna Adapter

Varian 01902874 0H 01902877E 2MB SOLIDS ADC/STM BOARD

Varian Frequency Synthesizer PTS D620 01 903 986 00 D620RHN2X-6/X-62

Meteocontrol XM-200 532010 798108 blue’Log X-Series

Meteocontrol Ethernet/DSL 421.136 Monitoring System Basic

Merck Hitachi Hplc D-7000 Interface it D-7000IF 810-0092

Fluke 8846A 6-1/2 Digit Precision Multimeter  NO BOOT

Agilent 34970A Data Acquisition Switch it

Mellanox MSX6036F-1SFR 36-QSFP-Ports FDR 56Gb/s InfiniBand switch

NEXCOM NBP1412-64 BACKPLANE

GW INSTEK PSW 30-36 360W MULTI-RANGE DC POWER SUPPLY

S Microsystems 411698000001-R03 REV:50 Motherboard w/ CPU 5149-08

Nokia C08661 C03 Plag-in CLAB Module

11023F / 810-00111-27 / BAC4V2KCAB Lucent CBX500ATM switch processor

Nortel NTEG72AD transceiver baseband module combining diversity

ATEN SN0116 ALTUSEN 16-port Serial Over the Net Console Server

HP Indigo VCORN 4LE CA356-00561 REV 03 Board Assy

HP Indigo Blanket Cleaning Station Film Rolls Q4602A Press 4000 Q5396-01260

Ceragon Fibeair IP20 iversal Microwave 7/8GHz 880NX07K01 MK-7506-0

NORTEL VOICE N0113467 NT1P79AAE6 Meridian electro optical cable

RAD ETX-201A EtherAccess ETX-201A/NULL/NULL/4UTP (B) 1920060000

Intel SR9000MK4U HBW01-SJB4 System Board Motherboard w/ SAS Board

RadioMeter 959-11 E16M333 pHC4006-9 Combined pH Electrodes

Siemens PP 72/48 6FC5611-0CA01-0AA0

BECKHOFF ZK4500-0023-0180 AX5000 MOTOR CABLE DYNAMIC 18M

HP Agilent 85101-60244 A-3016-45 Post Regulator PCB for 8510C Network Analyzer

HP 85101-60272 A-3228-45 Input / Output Board for HP 8510C 86030A Analyzer

HP 85101-60245 C-3051-45 PCB for 8510C 86030A 8530A Network Analyzer

NetApp FAS- Controller 111-00524A6 W/4GB GBIC 332-00111 271-00024

Olympus BOARD UYPB88 DVO98500 FOR IMT-2 Microscope

FOSS CON CONTROL PCB IT PROG 60016250

ALLOT NetEnforcer bypass BP REV B Copper Quad Line BLK A106009_B REV:4

Micrion 150-000893 8000 SYSCON MOTOR DRIVER R-H1 Card

PG CONTROLS JC2000SW-GEN-0022 Operating handle JC2000-T-XYZ-P0P0P-25-E1-R-N-S

LAUTERBACH LA-7708 DEBUG-USB2 POWER DEBUG INTERFACE /USB 2 w/LA-7762 JTAG-XSCALE

RAD FOM-40 fiber optic modem FOM-40/AC/ST85/V35 (P) 2811980000

Weller VP801EC IRON DESERING STATION VP 801 CEC

Lucent Technologies 59010 B-Stdx 9000 Fan Mod 810-00100-13 CNDQAF4LAC

Intel Silicon Photonics SPTMBP1PACDF029 100GB Active Optical Cable 29M length

JIPER NETWORKS MAG-SM160 REV.A JOS PULSE GATEWAY

IBM 45W1797 Power CABEL

COMPASS EOS R10004 VERT-6 REV: C00 FOR Compass EOS Optical Router

COMPASS EOS R10004 VERT-5 REV: C00 FOR Compass EOS Optical Router

ARECA ARC5060 VER:C 91-506001-120C-PR F/W: 1.49(A128) BOARD FOR ARECA externer

SERVISION HVG-400 HVG400 DVR 9900-060-A11 System For Vehicles

Advantech MIO-5251 Motherboard 19A6525103-01 Rev:A102-1 w/ 4GB DDR3L  128GB SSD

EMC2 118032854 LSI L3-25256-01A 300GB SSD PCIE CARD

ADVICE CIS8P4F240 INDUSTRIAL MANAGED SWITCH 8P POE  4P SFP .240W

Cobalt ATM utopia Emulator bit gate UE-F2 w/Many Accessories

CIENA CN 3181 168-3181-950MULTISERVICE DELIVERY SWITCHES w/ x2 DC POWER SUPPLY

Telkoor PS-3002 900-3002-40 CPCI AC-3U-200 ELMA AC/DC Power Supplly 200W

Telkoor PS-3002 900-3002-50 CPCI AC-3U-200 Power Supplly

HP Indigo VCORN 4LE CA356-00561 REV 03 Board Assy (NO MEMORY)

Nortel AG0011027 64MB FRE2-060E Advanced Comp Co-Processor 256 Context

Nortel NTAB9507E5 REL 01 Callpilot 150 CP150 MINI HARDWARE (E5) NTAB9983 REL 01

Nortel NTAG58BA PC Interface it

Gilat SkyEdge II Accent TDMA/SCPC Dual waveform VSAT

Mettler Toledo PG6002-S Precision Balance PG6002-SDR

Fuji Electric EW50RAGU-3P020 20 Amp 3 pole 3Ph Earth Leakage Circuit Breaker

Aloka Prosod SSD-3500 Plus Ultrasod System Control Board PCB EP525400CC

Aloka Prosod 6 Ultrasod Power Board EP541800CC FP2368A-401

Leica 566015 PL APO Microscope Objective 150x / 0.90 BD

EMC² AX100 System Processor Board 005048515 REV A22 005348513 C8344

Shimadzu FCV-10ALvp Low Pressure Gradient it 228-34700-39

Elmo Motion Control G-DCBEL5/100-NV1 G DC Bell Servo Drive Controller

SIEMENS SIMATIC S7 6ES7 350-2AH01-0AE0 Coter Module

TEXAS MICRO PCA P54C PN:27412 REV:D PENTIUM CPU BOARD

Spirent SMB-6000 SmartBits 6000B Chassis w/ 5 PCS LAN-3302A 800-4150-003 REV: A3

Comark 54-14405-MS3 Industrial Single Board Computer SBC 41-24405-001

Intel SSDSC2BB012T4 1.2TB 6Gb/s 2.5" SATA SSD DC S3500 Series

CIPHERLAB 2564 MR 2D BLK BT KIT USB BARCODE SCANNER W/ 2500 BT BASE

Knauer HPLC programmer 50 220V 50 Hz

Vertex RSI LT-3000 LT3000 UP/DOWN Converter 201539-10D SM

Cavium Networks NG FIPS PCI Nitrox PX CN1620-NFBE3-2.0-FW1.2-G Adapter Card

Jasco FP-920 Intelligent Fluorescence Detector

DVR SYSTEM HSR4082P 8 CHANNEL WITH 2TB HDD VGA/ HD -MONITOR /e-SATA / USB

Quintech SRX2150 SRX Series SRX215016X1MF000

HITACHI 3285173-A CTLXS HUS110 CONTROLLER w/ 8GB (2x4GB) 3285136-A MEMORY

Hitachi 3289196-A w/ 5559354-A ( 10GB SR SFP ) x 6 its  3289198-A 8GB x 12

HPE Aruba JL083A 3810M / 2930M 4SFP MACsec Module

tec LCU 2042 L-Band/140-70 MHz Converter it NTC/2042/CB

ECI XMCP-128 X713883 Card Opt 123 217009-6702 Rev E3

Quintech LSC16 1000 LSC161000B1A000

MKS INSTRUMENTS TYPE 660 660A40 NO POWER SUPPLY

D SMMKS INSTRUMENTS TYPE 660 660A40 NO POWER SUPPLY

CheckPoint UTM-1 EDGE N ISA SBXNDEF-100-2 308673 CPUTM-EDGE-N32-ADSL-A 32 USERS

TANDBERG DATA TH6BE-TM 006273EE 30-60168-01 DLT7000 35/70GB SCSI TAPE DRIVE

RF Antenna BS-RFU 26GHz Band ETSI-E REV:A01 AS3039

Avaya N0224882 CPDC Programmed hard drive NTDW5504E6 NTDW57KA

intermec ck31 barcode scanner  x2 pistol grip w/ x5ab1g 318-020-001 battery

RF Antenna TS-RFU 26GHz Band ETSI-F REV: A01 AS3027 w/ Antena

scale BSC9132QDS BSC9132 XPSC9132QDS Microprocessor Development System

CheckPoint UTM-1 EDGE SBXI-166LHGE-6 302489 CPUTM-EDGE-XG16-EU FOR 16 USERS

CheckPoint UTM-1 EDGE SBXI-166LHGE-6 302431 CPUTM-EDGE-XG8-IND-US 8 USERS

CheckPoint UTM-1 EDGE SBXI-166LHGE-6 302426 CPUTM-EDGE-XG8-IND-EU 8 USERS

CheckPoint UTM-1 EDGE SBXI-166LHGE-6 302499 CPUTM-EDGE-XGU-IND-EU LIMITED USER

CheckPoint Safeice 500 wireless 302843 CPSB-500WG-U-WORLD-EU limited Users

CheckPoint UTM-1 EDGE SBXI-166LHGE-6 302428 CPUTM-EDGE-XG-HW-IND-EU

Agilent HP 8655A Synchronizer/Coter

HSL K304E HighSecLabs 4 Port Secure KM Switch CGA05517 w/ ADAPTER

IBM ACTIA 40R4461 Peugeot Planer Interface

IBM 03T8826 AMD FirePro W7000 4GB GDDR5 PCIe x16 Quad DisplayPort Graphics Card

Lambda Electronics LMS-6008 245W 110/220V Power Supply

Advance Power MRE2400 MRE24H54B 2400W 230V 11A 45-65Hz Rectifier Power Supply

TSI 8345-M-GB REV:B Veloci Calc

COMTECH CDM-600L VER:1.5.2 CDM600L SATELLITE MODEM w/ OPTIONS: HW REV:4.0

APPLIED BIOSYSTEMS STM-5 CRS SC-NT-4M V1 PCB170131 015086 REV:1.0 011022-12

COMTECH CDM-600L VER:1.5.0 CDM600L SATELLITE MODEM w/ OPTIONS: HW REV:4.0

SUPERDIMENSION DASH 3000 TRANSMITTER TEST JIG DSK8092

TOKYO ELECTRON LIMITED E2B101-15/MCP E2B102-15/MCP E208-000001-15 E281-00000-16

Keysight Agilent 15821A OPT: 800 Multiple Bridging Isolator

Lucent GX-550 810-00306-05 11560 BAI3BB0BAB ATM BIO 256K mod. Rev 09

FLIR Blackfly BFLY-PGE-23S6M-C PoE GigE Camera

CERAGON RADIO 01-C07297H7 / d.2m RFU-CX-7-154A-1W2-TH w/ AN-0259-0 850W112002

KKCE Elevator KCEDZS 730 KM1362305G22

Cisco WS-C4948 V09 48-Ports Switch w/ Dual DC P/S PWR-C49-300DC  WS-X4991 FAN

THERMO COOL CUT 771110

IBase IB960F Single Board CPU-i7-2600  4GB RAM

HITEK HF10-S-M-_FFFL SC-HF10-658 REV:F 600-0600-001 190-6000 1000W Power Supply

11411B / 810-00183-45 / BAI31M8BAB Lucent CBX500 mod Rev. 03 missing screw

HP Indigo VCORN4 DFE CA356-00561 REV 03 Board Assy