PROFI Mnemonics

I’m a big fan of mnemonics.

A mnemonic, /nɛˈmɑːnɪk/ (the first “m” is silent) device, or memory device, is any learning technique that aids information retention in the human memory per Wikipedia.

In school, you may have learned a mnemonic to remember the Great Lakes: HOMES, Huron, Ontario, Michigan, Erie, Superior.

I learned the resistor color code using a mnemonic that started “Bad Boys…” and the rest was very politically incorrect.

In presenting the seven layers of the ISO/OSI reference model for networks I use the mnemonic for the seven layers starting at layer one (Physical, Data link, Network, Transport, Session, Presentation, Application) as “People Don’t Need To See Pamela Anderson.” I found this on Wikipedia, but in the meantime more-serious editors have deleted it.



Now my favorite mnemonic is PROFI related: a mnemonic to remember the three features of the PROFINET of Things, DUO.

  • Data Access
  • Uptime
  • Openness

The apparent dichotomy of remembering three things with a word for two is not lost upon me. None the less, it works.

For a full explanation of PROFINET of Things, attend one of our free PROFINET one-day training classes.

Can’t get to class? The visit our PROFINET of Things page.

–Carl Henning