In {HEAD ~ the Ethernet based Profinet system} 410, {TAIL ~ Ethernet data frames} are generated by the Profinet controller 200 and sent to the different Profinet devices, such as the devices 310 and 320 
In { HEAD ~ the Ethernet based Profinet system } 410 , { TAIL ~ Ethernet data frames } are generated by the Profinet controller 200 and sent to the different Profinet devices , such as the devices 310 and 320
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