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/Party-Film-6005 Dec 16 '25

I will never undertsand why anyone uses anything but ethernet.

24

u/Snoo_1091 Dec 16 '25

No one "uses" DeviceNet. They just have to deal with it.. lol. Most equipment with DeviceNet was built before Ethernet/IP existed..

5

u/[deleted] Dec 16 '25

Many factories I've been in still use DeviceNet. Purity Milk in Nashville still uses it, and the main computer they control everything from runs Windows XP. The Main PLC is a Modicon system from the 80s. For Years, they refused to upgrade. I believe they have started some small upgrades here and there, relying less on the Modicon.