Power over Ethernet: Myths, Mystery, and the Facts
Fieldlevel wiring used to be very simple. A sensor was either powered or passive. But when networking PLCs and PACs into the control system network became both practical and popular, engineers started thinking about how to provide power over the same set of wires as the network connection. This white paper discusses how Power over the Ethernet is fast becoming the standard.
You can calso listen to the podcast, "Best Practices for Industrial Networking, Part 1", a threepart podcastwhere Controls editor in chief Walt Boyes, talks with Paul Wacker, networking guru from Advantech Automation. This highly informative series of podcasts will give you the basics of modern digital networking for the industrial environment.