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PROFINET Basics – Revision 1.0 CoNeT Mobile Lab 3 PROFINET ON PHOENIX CONTACT PLATFORM - PROFINET basics – Revision 1.0 Co-operative Network Training University of Applied Sciences Duesseldorf Process Informatics Laboratory (Pi-LAB) http://www.pi-lab.de Contact: [email protected] CoNeT Mobile Box 3 – PROFINET on PC WORX 2 CoNeT Mobile Box 3 – PROFINET on PC WORX Contents PROFINET BASICS ................................................................................................................ 5 What is PROFINET? ............................................................................................................................................ 5 Function classes of PROFINET ........................................................................................................................... 5 COMMUNICATION AND SECURITY ................................................................................ 7 PROFINET Communication Concept ................................................................................................................ 7 PROFINET Security Concept .............................................................................................................................. 7 Questions ................................................................................................................................................................ 8 PROFINET VS. PROFIBUS ................................................................................................. 10 Advantages of PROFINET ................................................................................................................................. 10 Comparison PROFIBUS with PROFINET ...................................................................................................... 11 Integration with PROFIBUS .............................................................................................................................. 11 Questions .............................................................................................................................................................. 12 ISO/OSI REFERENCE MODEL ......................................................................................... 13 Communication Path .......................................................................................................................................... 15 Questions .............................................................................................................................................................. 16 ETHERNET BASICS ............................................................................................................ 17 Short History ....................................................................................................................................................... 17 Access Method ..................................................................................................................................................... 18 Standard Ethernet Frames ................................................................................................................................. 19 What are frames? .............................................................................................................................................. 19 MAC Address ...................................................................................................................................................... 20 Network Topologies ............................................................................................................................................ 20 Some Network Components ............................................................................................................................... 21 Switches ........................................................................................................................................................... 21 Hubs ................................................................................................................................................................. 22 Routers ............................................................................................................................................................. 23 Signal Coding ................................................................................................................................................... 23 VLAN ............................................................................................................................................................... 23 3 CoNeT Mobile Box 3 – PROFINET on PC WORX Questions .............................................................................................................................................................. 24 PROFINET CABLING AND CABLE-JACK SYSTEMS ................................................. 25 Network Installation ........................................................................................................................................... 25 Cables ................................................................................................................................................................... 26 Twisted pair cables (from copper):................................................................................................................... 26 Fiber optic cables ............................................................................................................................................. 26 Hybrid cables ................................................................................................................................................... 27 Connectors ........................................................................................................................................................... 27 Connectors for copper-based cables ................................................................................................................. 27 Connectors for fiber optic cables ...................................................................................................................... 28 Wireless system ................................................................................................................................................... 28 Questions .............................................................................................................................................................. 29 INTERNET PROTOCOL FAMILY .................................................................................... 30 Internet Protocol (IP) .......................................................................................................................................... 30 Subnet Mask ........................................................................................................................................................ 31 User Datagram Protocol (UDP) ......................................................................................................................... 31 Transmission Control Protocol (TCP) .............................................................................................................. 31 Port Number Assignment ................................................................................................................................... 32 Address Resolution Protocol (ARP) and Reverse Address Resolution Protocol (RARP) ............................. 32 Other useful protocols ........................................................................................................................................ 33 Questions .............................................................................................................................................................. 33 SUMMARY ............................................................................................................................. 34 4 CoNeT Mobile Box 3 – PROFINET on PC WORX PROFINET Basics What is PROFINET? If we talk about industrial automation, you might think about fieldbus systems first, such as PROFIBUS, INTERBUS, DeviceNet or CANopen, etc. Indeed, the widespread usage of fieldbus technology has become established in industrial automation in the past few years. One of the important advantages of fieldbus systems is that you can migrate from your central automation systems to the decentralized ones. If we talk about communication between computers, you may be familiar with intensive data- transferring networks such as Internet. The development of this kind of communication transfer systems has increased rapidly. Most Internet communications are based on the Ethernet standard that was given by IEEE 802.3 (Institute of Electrical and Electronics Engineers). One of the significant properties of the Ethernet is its simple structure. It can be implemented easily and therefore is very popular. PROFINET is the open and innovative standard for industrial automation based on the industrial Ethernet, i.e. you can exchange process data with your machines as before but instead of using a fieldbus system, you use the Ethernet as the medium of communication. Fig.1 PROFINET logo The concept of the PROFINET satisfies all the requirements for industrial automation technology. You can use PROFINET for your factory and process automations that require response time under 100 milliseconds.
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