198
9
chapter
Indutrial
networks
Presentation:
• Needs and available components
• Technologies
• Schneider Electric policy
Summary
9. Industrial networks
199
1
2
3
4
5
6
7
8
9
10
11
12
M
9.1
Introduction
200
9.2
History
200
9.3
Market requirements and solutions
201
9.4
Network technologies
203
9.5
Networks recommended by Schneider Electric
205
9.6
Ethernet TCP/IP
206
9.7 Web services and Transparent Ready
209
9.8
CANopen bus
216
9.9
Ethernet and CANopen synergy
224
9.10 AS-Interface (AS-I) Bus
224
9.11 Conclusion
231
9.1
Introduction
9.2
History
9. Industrial networks
200
In this part we discuss the electrical links required for operating automation
equipment.These usually involve two categories:
- High current links connecting the power components between the mains
supply and the load.We shall not be dealing with this topic here but refer
the reader to the sections on power supply and implementation.
- Low current links connecting all the capture, dialogue, processing and
power control components with the machine and process environment.
9.1
Introduction
Electrical equipment systems are traditionally hard wired.
The international machine standard IEC 60 204-1 and individual country
standards have precise stipulations for sections, the quality of the insulating
agent and colour markings. Most of these links are made from flexible wire
units with a section of 1.5-2.5 mm2 (AWG 16 and 14), protected at each
end.
Until a decade ago, these solutions covered all requirements, both for
discrete signals and analogue signals for servocontrol, the latter sometimes
requiring shielded cables to prevent electromagnetic interference.
Influenced by IT and automotive industry standards, the advent of digital
technologies in other industries has had a considerable impact on the
design and construction of electrical equipment.
Digital data exchange entails links by communication networks requiring
the use of connectors and ready-made connections. This makes it much
simpler to build electrical equipment as wiring errors are red