Industrial Ethernet
System Manual, 09/2019, C79000-G8976-C242-10
7
Preface ................................................................................................................................................... 3
1 Basics of communication with Industrial Ethernet .................................................................................. 15
1.1 Terminology ............................................................................................................................ 15
1.2 Industrial Ethernet ................................................................................................................... 16
1.2.1 Basics of Industrial Ethernet ................................................................................................... 16
1.2.2 PROFINET .............................................................................................................................. 18
1.2.2.1 Basics of PROFINET .............................................................................................................. 18
1.2.2.2 PROFINET IO ......................................................................................................................... 20
1.2.3 SIMATIC NET ......................................................................................................................... 20
1.2.4 Transmission procedures and real-time response ................................................................. 23
1.2.5 Time-Sensitive Networking ..................................................................................................... 24
1.2.5.1 Introduction ............................................................................................................................. 24
1.2.5.2 Time synchronization .............................................................................................................. 25
1.2.5.3 TSN configuration (IEEE 802.1Q) ........................................................................................... 26
1.2.5.4 OPC UA PubSub .................................................................................................................... 26
1.3 Technologies of Industrial Ethernet ........................................................................................ 27
1.3.1 Communications media .......................................................................................................... 27
1.3.2 Basics of communication with IP ............................................................................................ 28
1.3.2.1 IPv4 address ........................................................................................................................... 28
1.3.2.2 Structure of an IPv6 address .................................................................................................. 30
1.3.2.3 IPv4 / IPv6 ............................................................................................................................... 32
1.3.2.4 IPv6 terms ............................................................................................................................... 35
1.3.3 Active and passive network components................................................................................ 37
1.3.4 Management functions............................................................................................................ 40
1.3.5 Power over Ethernet (PoE) ..................................................................................................... 41
1.3.6 Fault tolerance and redundancy .............................................................................................
44
1.3.7 Access Methods ...................................................................................................................... 45
1.3.8 Layer 3 functions ..................................................................................................................... 46
1.3.9 EtherNet/IP ............................................................................................................................. 49
1.4 Switches and switched LANs .................................................................................................. 50
1.5 Wireless LAN .......................................................................................................................... 52
1.5.1 What is wireless LAN? ............................................................................................................ 52
1.5.2 Differences between wireless LAN and wired networks ......................................................... 52
1.5.3 Preferred areas of application for WLANs .............................................................................. 53
1.5.4 The standards of the "IEEE 802.11" series ............................................................................ 53
1.5.5 IEEE 802.11n/ac ..................................................................................................................... 55
1.5.6 IEEE 802.11r ........................................................................................................................... 57
1.5.7 Encryption and data security .................................................................................................. 58
1.5.8 Avoiding collisions in wireless networks ................................................................................. 59
1.5.9 Structure of an IWLAN ............................................................................................................ 60
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