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
• 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
2nd value
单位unit
状态status
诊断diagnose
= 70,32
= 23,02
= mbar
= ok
= 温度过高
Temerature
too high
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
D CPU
A
A
D
D CPU
A
0-65535
D CPU
A
10-38-10+38
CPU
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
控制柜cabinet
Ex [i]
PS
接线架marshalling rack
接线盒junction box
连接件
connection elements
典型总线结构Typical Fieldbus Architecture
PROFIBUS-PA
Controller
FOUNDATION Fieldbus
Controller
PC
PROFIBUS-DP
RS485
Coupler/
Link
High Speed Ethernet
Linking
Device
PROFIBUS-PA
IEC 61158-2
PC
FF
FF
Linking
Device
FF
IEC 61158-2
Systemintegration with couplers/links
to PROFIBUS-DP (up to 12 Mbit/s)
Direct system integration or
linking devices
系统通过耦合器/链接器集成至Profibus-DP
直接系统集成或连接装置
Parallel use of DP- and PA field devices
High Speed Ethernet (100 Mbit/s)
DP-和PA现场设备平行使用
高速以太网
循环数据传输
Cyclic (scheduled) Data Transmission
PROFIBUS-PA
GSD (DDB)
Master
主机
FOUNDATION Fieldbus
Arbitrator
仲裁
DD
主机控制数据交换（中央控制机理）
现场设备直接进行数据交换
One cyclic master controls
data exchange
(Central Control Philosophy)
从站通过GSD进行描述
Direct data exchange between field
devices possible
(Distributed Control Philosophy)
Slaves are described
by GSD (Device Data Base - DDB)
Slaves are described
by Common File Format (CFF)
从站通过普通文件格式描述(DD file)
现场设备管理Field Device Management
PROFIBUS-PA
# address
FOUNDATION Fieldbus
serial no.
TAG no.
DIP switch
仪表通过不同的地址进行管理
仪表通过标记号和序列号进行管理
Instrument management with address
Instrument management with
地址设定可通过硬件和软件两件方式
TAG-number and serial number
Address setting with hardware
or software
现场设备管理Field Device Management
PROFIBUS-PA
PLC
FOUNDATION Fieldbus
PLC
PC
PROFIBUS-DP
RS485
coupler/
Link
PC
High Speed Ethernet
Linking
Device
PROFIBUS-PA
IEC 61158-2
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
FF
FF
Linking
Device
FF
IEC 61158-2
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.
技术比较Technical comparison
PROFIBUS-PA
FOUNDATION Fieldbus
PID
Template
PID
Template
PV2 PV1 CV
PV2 PV1 CV
SP
SP
PV2
#1
#2
#1
FB
PID
CV
#3
PV1
#2
PNK
FF
#4
#3
#3 PV2
#2 PV1
#1
FB
PID
CV
本安解决方案Intrinsic Safe Solutions
PROFIBUS-PA
FOUNDATION Fieldbus
power supply
power supply
barrier
segment coupler
IEC 61158-2
PROFIBUS-DP
RS485
IEC 61158-2
T
T
T
Segment coupler contains intrinsically
safe power supply and terminator
Intrinsic safety and power supply with
separate concept
段耦合器带有本安供电及终端
Simplified intrinsic safety concept
according FISCO model
本质安全与供电隔离
Conventional intrinsic safety concept
according FISCO model
依据FISCO模型简化的本安概念
依据Fisco模型的传统本安概念
FF总线的防爆方案
Safe
area
FF 配电器*
标准
中继器*
FF H1 segment
网端
Entity本安
中继器*
FISCO本安
中继器r*
1
2
Div 1 / Zone 0/1
Safe Area or
网端
*: 需配置标准 24V 电源 ，未标注
网端
Div 2 / Zone
2
每一路都有短
路保护和隔离
输出。无需外
配网端。
调试工具Service Tool
PROFIBUS-PA
•Proficard/Profiboard(Softing)
•Commuwin II(Endress+Hauser)
•Coupler(Pepperl+Fuchs)
FOUNDATION Fieldbus
•PCMCIA Card(NI)
•NI ConfiguratorI(NI)
•Power Supply(NI)
Fieldbus
• Bus with spurs
Bus with spurs
Fieldbus
• Bus with Junctions Box
Junction
Box
Tree
Fieldbus
• Point to Point
Fieldbus I/O
Junction
Box
Point-to-Point
Tree
Bus with spurs
市场比较Typical Strenghts
PROFIBUS-PA
FOUNDATION Fieldbus
欧洲控制系统
美洲控制系统
European control systems
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
Experience in PROFIBUS-DP
since 1991
Wide selection of
standardized function blocks
市场比较Typical Strenghts
Europe
India
Japan
石油及化工 Oil & Chemicals
纸浆及造纸 pulp & paper
食品 food
SEA
Canada
USA
Food食品
Chemicals (Exi)化学
water / wastewater水/污水
India
Brasil
SEA
Argentina
RSA