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CHAPTER
9-1
Cisco IE 2000 Switch Software Configuration Guide
OL-25866-01
9
Configuring PROFINET
Finding Feature Information
Your software release may not support all the features documented in this chapter. For the latest
feature information and caveats, see the release notes for your platform and software release.
Use Cisco Feature Navigator to find information about platform support and Cisco software image
support. To access Cisco Feature Navigator, go to
http://www.cisco.com/go/cfn. An account on
Cisco.com is not required.
Restrictions for Configuring PROFINET
The switch does not support isochronous real-time communication channels.
Information About Configuring PROFINET
PROFINET is the PROFIBUS International (PI) open Industrial Ethernet Standard that uses TCP/IP and IT
standards for automation control. PROFINET is particularly useful for industrial automation systems and
process control networks, in which motion control and precision control of instrumentation and test
equipment are important. It emphasizes data exchange and defines communication paths to meet speed
requirements. PROFINET communication is scalable on three levels:
• Normal non-real-time communication uses TCP/IP and enables bus cycle times of
approximately
100 ms.
• Real-time communication enables cycle times of approximately 10 ms.
• Isochronous real-time communication enables cycle times of approximately 1 ms.
PROFINET I/O is a modular communication framework for distributed automation applications.
PROFINET
I/O uses cyclic data transfer to exchange data, alarms, and diagnostic information with
programmable controllers, input/output (I/O) devices, and other automation controllers (for example, motion
controllers).
PROFINET I/O recognizes three classes of devices:
• I/O devices
• I/O controllers
• I/O supervisors