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What’s Lurking in Your Enclosures?

Let me know if this sounds familiar to you: somewhere in the plant there’s an enclosure that houses your controls hardware. It’s seen some changes over time – some components may have been replaced or may no longer be needed, but no one seems to know if there’s been any documentation of the changes: the old napkin on which someone drew a schematic disappeared long ago. And there may not be any documentation at all for the wiring connections to your field or internal devices.
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