Industrial device networks were originally designed to reduce I/O wiring and installation costs by replacing traditional point-to-point wiring schemes with network interfaces that provide bus power as well as I/O signals.
Industrial Ethernet is migrating downward in the network hierarchy due to its ability to integrate data-intensive devices into the IT infrastructure, enabling use of the data for both control and higher-level supervisory functions. Industrial Ethernet’s migration to lower levels of the automation hierarchy will result in the traditional device network value proposition solidifying around installation cost savings and use in meeting application-specific requirements.
This divergence simplifies network decision-making, with industrial Ethernet increasingly the choice for high-end data-intensive devices and traditional device networks deployed for wiring savings in the trenches.
Strategic Issues
Device networks are important solutions for standalone, embedded, or application-specific industrial requirements.
What is the best way to incorporate device networks and industrial Ethernet into a cohesive automation strategy?
Which applications and geographic regions hold the most promise? What impact will wireless sensor networks, USB interfaces, and other emerging alternatives have on future prospects for traditional device networks?
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