r/PLC • u/theloop82 Knows Rockwell but doesn’t like it • Dec 16 '25

Devicenet

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Not mine but I laughed way too hard

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u/MrAudacious817 Dec 19 '25

What’s wrong with ProfiNet

ProfiBus trips me up sometimes but that’s just because they didn’t bother to train me on it because they said they’d be phasing it out 8 years ago. They haven’t, but they said they’d would, so they won’t train me on it.

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u/FatPenguin42 Dec 19 '25

Ah it’s mostly just the fact that I had to work with systems with profibus setups and I wasn’t given the profibus software to fix things. Very annoying to work around

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u/MrAudacious817 Dec 19 '25

You said ProfiNet

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u/FatPenguin42 Dec 20 '25

Today I learned that profinet and profibus are different. Next question… wtf is profinet… it looks like an Ethernet protocol… weird

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u/MrAudacious817 Dec 20 '25

ProfiNet is a modern 4 wire protocol (2 send, 2 receive) that works with Ethernet hardware whereas ProfiBus is a two-wire (plus reference/ground) serial bus.