Paradigm shifts in automation are always occurring. The need for cost savings and higher diagnostics caused the shift from IP20 I/O to IP67 I/O. Now, we are in the midst of a shift to reduce or eliminate enclosures in industrial applications by removing control and power from the cabinet. With the reduction of IP20 I/O and enclosures, adding more I/O (discrete and analog) or specialty devices (RF identification, measurement devices, etc…) is now more difficult. In the past it was relatively easy, but expensive, to add another “slice” of I/O to an existing IP20 solution.
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