PROFINET and IT

This white paper describes PROFINET in IT terms and shows how PROFINET relates to IT topology.  The adaptations required of Industrial Ethernet for environmental and functional purposes are described. PROFINET, a market-leading Industrial Ethernet protocol, encompasses all levels of a network, ranging from the physical infrastructure to the Ethernet network access layer and the TCP/IP layer, and finally to the application layer. The structures and topologies of conventional network technology used in IT and in automation differ only in the machine-level area of the automation system. As a result, PROFINET can be easily integrated into existing network environments. Table of Contents
  1. Executive Summary
  2. Motivation
  3. Industrial Ethernet: PROFINET
  4. Different approaches for Industrial Ethernet PROFINET – Overview
  5. Specific conditions in automation
  6. Network structure and network nodes
  7. Communication structure
  8. Bit rate and packet rate
  9. Addressing and subnetting
  10. Protocols used
  11. Real-time communication
  12. Environmental conditions
  13. Installation requirements
  14. Availability and redundancy
  15. Operation / management / diagnostics / remote access
  16. Network connection of automation and office
  17. Scenario 1 – Separate physical and logical networks
  18. Scenario 2 – Logical integration into the overall network
  19. Scenario 3 – Separate logical networks (closed user group)

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