1 / 20

现场总线 Fieldbus

现场总线 Fieldbus. 技术相关（ Technology）. 数值变送技术 Value transmission technology. 4-20mA, HART, Fieldbus. analog. 4...20 mA. analog + digital (hybrid). digital. 现场设备设计 Field Device Design. Identical base device PA or FF electronics 设备基于 PA 或 FF 电子模块. 总线系统优势 Advantage of a bus system.

brooke
Download Presentation

现场总线 Fieldbus

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 现场总线Fieldbus

  2. 技术相关（Technology）

  3. 数值变送技术Value transmission technology • 4-20mA, HART, Fieldbus analog 4...20 mA analog + digital (hybrid) digital

  4. 现场设备设计Field Device Design Identical base device PA or FF electronics 设备基于PA或FF电子模块

  5. 总线系统优势Advantage of a bus system • 通过数字通讯可获取更多信息 More information thanks to digital communication 传统方式conventional 数字digital 15,3 mA 1st value = 70,32 2nd value = 23,02 单位unit = mbar 状态status = ok 诊断diagnose = 温度过高 Temerature too high

  6. 10-38-10+38 CPU CPU CPU CPU 总线系统优势Advantage of a bus system • 更精确的数值More accurate values 过程控制 Process Control 0-65535

  7. 总线系统优势Advantage of a bus system • 减少接线Reduced wiring 传统模式conventional 总线系统Fieldbus Process Near Component) Process Near Component I/O模块 module 总线耦合器buscoupler Ex [i] 接线架marshalling rack Ex [i] PS 控制柜cabinet 接线架marshalling rack 连接件 connection elements 接线盒junction box

  8. 典型总线结构Typical Fieldbus Architecture PROFIBUS-PA FOUNDATION Fieldbus Controller PC Controller PC PROFIBUS-DP RS485 High Speed Ethernet Linking Device Linking Device Coupler/ Link PROFIBUS-PA IEC 61158-2 FF IEC 61158-2 FF FF Systemintegration with couplers/linksto PROFIBUS-DP (up to 12 Mbit/s) 系统通过耦合器/链接器集成至Profibus-DP Direct system integration or linking devices 直接系统集成或连接装置 Parallel use of DP- and PA field devices DP-和PA现场设备平行使用 High Speed Ethernet (100 Mbit/s) 高速以太网

  9. GSD (DDB) DD Master 主机 Arbitrator 仲裁 循环数据传输Cyclic (scheduled) Data Transmission PROFIBUS-PA FOUNDATION Fieldbus 主机控制数据交换（中央控制机理） One cyclic master controls data exchange(Central Control Philosophy) 现场设备直接进行数据交换 Direct data exchange between field devices possible(Distributed Control Philosophy) 从站通过GSD进行描述 Slaves are described by GSD (Device Data Base - DDB) 从站通过普通文件格式描述(DD file) Slaves are described by Common File Format (CFF)

  10. # address serial no. TAG no. DIP switch 仪表通过不同的地址进行管理 Instrument management with address 仪表通过标记号和序列号进行管理 Instrument management with TAG-number and serial number 地址设定可通过硬件和软件两件方式 Address setting with hardware or software 现场设备管理Field Device Management PROFIBUS-PA FOUNDATION Fieldbus

  11. 系统扩展原则上是可能的，但并不是所有的系统供应商都支持此功能系统扩展原则上是可能的，但并不是所有的系统供应商都支持此功能 Online system extension is in principle possible, but not all system suppliers support this function 在线和离线任何时候都可以而且系统不会被中断 Everytime offline and online possible. Process don´t need to be interrupted. 现场设备管理Field Device Management PROFIBUS-PA FOUNDATION Fieldbus PLC PC PLC PC PROFIBUS-DP RS485 High Speed Ethernet Linking Device Linking Device coupler/ Link PROFIBUS-PA IEC 61158-2 FF IEC 61158-2 FF FF

  12. 技术比较Technical comparison PROFIBUS-PA FOUNDATION Fieldbus PID Template PID Template FB PID FB PV2 PV1 CV PV2 PV1 CV SP SP PV2 CV #1 #3 #1 PV1 #2 #2 PNK FF #4 #3 #3 CV PV2 PID #2 PV1 #1

  13. 本安解决方案Intrinsic Safe Solutions PROFIBUS-PA FOUNDATION Fieldbus power supply power supply barrier segment coupler IEC 61158-2 IEC 61158-2 T T PROFIBUS-DP RS485 T Segment coupler contains intrinsically safe power supply and terminator 段耦合器带有本安供电及终端 Intrinsic safety and power supply withseparate concept 本质安全与供电隔离 Simplified intrinsic safety concept according FISCO model 依据FISCO模型简化的本安概念 Conventional intrinsic safety concept according FISCO model 依据Fisco模型的传统本安概念

  14. FF总线的防爆方案 Safearea 标准 中继器* FF 配电器* 网端 FF H1 segment 1 2 Entity本安 中继器* FISCO本安 中继器r* Div 1 / Zone 0/1 每一路都有短路保护和隔离输出。无需外配网端。 *: 需配置标准 24V 电源 ，未标注 Safe Area or Div 2 / Zone 2 网端 网端

  15. 调试工具Service Tool PROFIBUS-PA FOUNDATION Fieldbus • Proficard/Profiboard(Softing) • Commuwin II(Endress+Hauser) • Coupler(Pepperl+Fuchs) • PCMCIA Card(NI) • NI ConfiguratorI(NI) • Power Supply(NI)

  16. Fieldbus • Bus with spurs Bus with spurs

  17. Junction Box Tree Fieldbus • Bus with Junctions Box

  18. Junction Box Tree Fieldbus Fieldbus I/O • Point to Point Point-to-Point Bus with spurs

  19. 市场比较Typical Strenghts PROFIBUS-PA FOUNDATION Fieldbus 欧洲控制系统 European control systems 美洲控制系统 American control systems 主要区域 Main regions: Europe 70%, Asian 20%, America 10% 主要区域 Main regions: America 70%, Asian 20%, Europe 10% 本安应用Intrinsic safety applications(FISCO) 需控制设备的现场Field based control Wide selection of standardized function blocks Experience in PROFIBUS-DPsince 1991

  20. 石油及化工 Oil & Chemicals纸浆及造纸 pulp & paper食品 food Europe India Japan SEA Canada USA India Brasil Food食品Chemicals (Exi)化学water / wastewater水/污水 SEA Argentina RSA 市场比较Typical Strenghts

More Related