P0913UN

描述

2)PLC的接线包括输入接线和输出接线。输入接线的长度不宜过长，一般不大于30m；在线路距离较长时，可采用中间继电器进行信号的转换。输入接线的COM端与输出接线的COM端不能接在一起。输入接线与输出接线的电缆应分开设置。必要时，可在现场分别设置接线箱。集成电路或晶体管设备的输入信号和输出信号的接线必须采用屏蔽电缆；屏蔽层的接地端应为一点接地，接地点宜在控制器侧。

1.4冗余设计和降级操作设计

1)对可靠性要求较高的应用场合，冗余设计和降级操作是必要的。冗余设计可采用热后备或冷后备方式。热后备方式操作时，冗余的后备系统也同时运行，两者输出的结果一致时，表示系统是正常运行的；一旦结果不一致，则发出警报信号，同时，根据自诊断的结果，切换到正常的系统去。冷后备方式操作时，冷后备系统不运行，它在自诊断检测出运行系统故障后才切入后备系统。对PLC来说，冗余系统的范围主要是CPU、存储单元、电源系统和通信系统，只有在可靠性要求很高时，才会包括输入输出单元的冗余等。

2)降级操作是指在设计时，将手动操作包括在内的设计。例如，紧急停车的设计，关键设备的开停和再启动功能的设计等。这样，一旦发生故障，可采用降级的操作，即对部分或全部设备进行手动的开停操作，以避免设备的损坏或对人员的伤害。此外，在设计中也可考虑从全自动到半自动、直至手动的操作等。

欧美品牌停产的，常用的“PLC”备品备件

我司产品应用于以下领域：

1,《发电厂DCS监控系统》

2,《智能平钢化炉系统制造》

3,《PLC可编程输送控制系统》

4,《DCS集散控制系统》
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5,《智能型消防供水控制系统》

6,《化工厂药液恒流量计算机控制系统》

7,《电气控制系统》造纸,印染生产线,变电站综合自动化控制系列

本特利，英维思，伍德沃德，福克斯波罗、西屋、瑞恩、施耐德莫迪康、ABB、AB、西门子、摩托罗拉、GE发那科、安川、博世力士乐，ACSO，力士乐等各大品牌的DCS系统配件，机器人系统配件，大型伺服系统备件。

OMRON G3PA-210B SOLID STATE RELAY

Lumonics Laser Interface SDT/EU Board PWB 2016047 REV A

RVSI 53115 REV K,61266 REV B,61263 REV A

CENTENT CNO165 HIGH RESOLUTION MICROSTEP DRIVE

FUJI 4800 VME-48316-32F Rev F Vision Processing Board

SUPER VEXTA UDK5128N 5-PHASE DRIVER

SunX DPX-410-IN Digital Pressure sensor

Sorensen DCS40-25E DC Power Supply 0-40V 0-25A

BERKELEY BXi 4 AXIS SERVO CONTROLLER BXi4/2-01-B

COGNEX VISION SYTEM IN-SIGHT-3400 Processor

ARCOM CONTROL PCIB40 40-Ch Digital I/O,Counter Board

Teknic SST-3000-829 Servo Drive M-5075-829 SERVO Motor

OMRON E5CS-Q1KJ TEMPERATURE CONTROLLER

WATLOW ANAFAZE CLS216 CONTROLLER

SunX DP2-42N Digital pressure Sensor

KEYENCE LX2-V10W PHOTOELECTRIC AMPLIFIER THRUBEAM LASER

OMRON H5F-KB Digital Daily 24hr Time Switch control

Omron Temerature Controller E5C3 WR20K E5C3-WR20K

FREE QUAD Ethernet Module p/n 110789

Watlow 989A-25CE-NERG Digital Temperature Controller

Lot of 2 Agilent 10467-68701 Microprobe set

CyberOptics PWA 5120218 Rev B Board

Agilent W2641A DisplayPort Test Point Access Adapter

Agilent U2122A 32I USB Digital I/O

CyberOptics PWA 5120089 Rev F Board

Intel D52657-303 PCIe Memory Expansion with 8GB FBDIMM

Agilent 86205A RF Bridge 50Ohm 300kHz to 6GHz

TAMAGAWA TBL-I SERIES AC SERVO MOTOR TS4509N3920E200

Omron Temperature Controller E5CN-R2MT-500 AC100-240V

MITUTOYO 10X/24 WIDEFIELD FOCUSING EYEPIECES 24mm

National Instruments NI SC-2062 8-Channel Relay Board

Lot of 2 MATSUSHITA NAIS FPO-C14RS PLC+FPO-E8RS

Advantech FPM-3150G-R 15 inch touch screen Flat Panel

Phoenix Contact MCR-SWS/U MCR-SWS Threshold Switch

Panasonic AC Servo Motor 1.0KW MSM102Q1C

FLOWLINE LR79326 ISOLATION RELAY LEVEL CONTROLLER

PRO-FACE GP37W2-BG41-24V TOUCHSCREEN GRAPHIC PANEL 24V

4 HP NC7170 Dual Port Gigabit Ethernet Card 313586-001

Yaskawa AC Servo Motor SGM-08AAF J12 750W 3000rpm

DELL Y8132 Poweredge 2950 Redundant PSU 750W N750P-S0

ADCOS VME-A100 K-100-VA

SONY SOMIC 68K VSP2 CAMERA/VIDEO CONTROLLER

Dell UF804 E1705 9400 M90 NVIDIA GeForce GO 7800″NEW”

Watec WAT-902B High Resolution CCD Camera

Omron S8VS-24024 10 Amp 24 VDC Power Supply

KEYENCE BL-185 BARCODE READER and BL-U2 POWER SUPPLY

MURR ELEKTRONIK 24V Power Supply MCS5-115-230/24 5A

Intel Core 2 Duo Mobile T9400 2.53Ghz/6MB/106​6

Teli CS3730DC+1X65 lens+V-27R+Camera Holder

Watec WAT-505EX VISION CAMERA

Intel Core 2 Duo Mobile T7500 2.20Ghz/4MB/800

BOECKELER 1398 DIGITAL MICTROMETER POSITIONER HEAD

Agilent E2078-62101 CONN EXT HPIB GPIB Adapter

PowerCore CPCI-3750 Single Board CompactPCI®Computer

Symbol P370 P470 Cordless Scanner PS/2 cable P 370

Symbol P370 P470 Cordless USB Barcode Scanner Kit

MITUTOYO AT112 Linear Scales AT112-120 AT112-50

COGNEX IN-SIGHT 3400 ISS-3400-0 REV G with Full cable

Quickpanel Pro-Face GP370-LG21-24VP Touchdisplay

CISCO 10G BASE SR XENPAK TRANSCEIVER Module 10GB-SR

Opto 22 Classic Mistic G4LC32SXA Controller Processor

ZHONE MALC-G SHDSL-24

BK3110 KL1104 KL2134 DEVICENET BUS TERMINAL

FUJI TEAC TD-320A DIGITAL INDICATOR CONTROLLER

NEW HP 75000 Series C VT 1563A 800kSa/a 2 Ch Digitizers

AGILENT N2269A DAC 16-BIT DIG I/O MULTIFUNTION MODULE

Lot of 2 HP 10705A INTERFEROMETER 10704A RETROREFLECTOR

BALDOR ASR SERIES BTS10-5/10-24-R​L-708 SERVO DRIVE

MITUTOYO LGB-110S LINEAR GAGE 542-401

MOTOROLA MCP750 VME Processor Module

SBS Technologies CP 6212 Universal Serial I/O

FORCE POWERCORE CPCI-690 CPCI 690 COMPACT PCI

Whedco DSP Motion Control IMJ-313E-X-D MTR-3N31 Motor

Galil 3-AXIS Motion Controller DMC-1030 DMC1030

FORCE POWERCORE CPCI-680 COMPACTPCI

COMPAQ 70-40453-01 U320 SCSI Bus I/O Controller

Dell 5U104 ATI VGA 64MB for Inspiron 5100 5150

SIEMENS 228246 card 210400 rev-f with 208000 rev-g

PEPPERL&FUCHS KFD2-SOT-EX2 Isolated Switch Amp qty=2

OMRON SYSMAC C60P Programmable Controller C60P-CDR-AE