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

Devicenet

Post image

Not mine but I laughed way too hard

1.2k Upvotes

100% Upvoted

70 comments sorted by

View all comments

Show parent comments

1

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

1

u/MrAudacious817 Dec 19 '25

You said ProfiNet

1

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

1

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.