现场总线Fieldbus.

Presentation on theme: "现场总线Fieldbus."— Presentation transcript:

1 现场总线Fieldbus

2 技术相关（Technology）

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

4 Identical base device PA or FF electronics 设备基于PA或FF电子模块
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 传统方式conventional 数字digital 通过数字通讯可获取更多信息
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 更精确的数值More accurate values
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 CPU CPU CPU CPU

7 Process Near Component Process Near Component) 总线耦合器buscoupler Ex [i]
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) 控制柜cabinet 连接件 connection elements I/O模块 module 总线耦合器buscoupler Ex [i] 接线架marshalling rack Ex [i] PS 接线盒junction box

8 典型总线结构Typical Fieldbus Architecture
PROFIBUS-PA PROFIBUS-DP RS485 Coupler/ Link IEC Controller PC FOUNDATION Fieldbus High Speed Ethernet Linking Device FF Systemintegration with couplers/links to 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 循环数据传输 Cyclic (scheduled) Data Transmission
PROFIBUS-PA FOUNDATION Fieldbus GSD (DDB) Master 主机 DD Arbitrator 仲裁 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 现场设备管理Field Device Management
PROFIBUS-PA FOUNDATION Fieldbus # address DIP switch serial no. TAG no. 仪表通过标记号和序列号进行管理 Instrument management with TAG-number and serial number 仪表通过不同的地址进行管理 Instrument management with address 地址设定可通过硬件和软件两件方式 Address setting with hardware or software

11 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 FF IEC FF FF 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.

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

13 本安解决方案Intrinsic Safe Solutions
PROFIBUS-PA FOUNDATION Fieldbus IEC T power supply barrier 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 with separate 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 PROFIBUS-DP RS485 segment coupler

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

15 调试工具Service Tool Proficard/Profiboard(Softing) PCMCIA Card(NI)
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 Fieldbus Tree Junction Box Bus with Junctions Box

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

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

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