i have a profinet device and an Ethernet port which is dedicated for KNX protocol. can i connect my profinet device to this Ethernet port?
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Sure you can connect them at Ethernet level, but the KNX device won't start talking profinet. Are you trying to use it like an Ethernet switch or something like that? – Fizz Nov 10 '15 at 16:39
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From my knowledge the KNX physical layer is not ethernet, while the profinet has the same layer as ethernet, so that ethernet port is a profinet port and you connect a PLC or profinet master. – Marko Buršič Nov 10 '15 at 18:26
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@MarkoBuršič: I think he is talking about KNXnet/IP. – Fizz Nov 11 '15 at 05:07